diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 57b91fc..41f5c2e 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -97,3 +97,24 @@ jobs:
 
       - name: build
         run: pnpm -C web build
+
+  # The flake pins pnpmDeps.hash against web/pnpm-lock.yaml (#98). A lockfile
+  # change invalidates the pin silently elsewhere, so the packaged build has to
+  # fail here too.
+  flake:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install nix
+        run: |
+          curl -fsSL https://nixos.org/nix/install | sh -s -- --daemon --yes
+          echo "/nix/var/nix/profiles/default/bin" >> "$GITHUB_PATH"
+
+      - name: build flake packages
+        run: |
+          nix build \
+            .#webFrontend \
+            .#maestro \
+            .#maestro-web \
+            --no-link
diff --git a/crates/maestro-daemon/src/projects.rs b/crates/maestro-daemon/src/projects.rs
index aab747e..78db18f 100644
--- a/crates/maestro-daemon/src/projects.rs
+++ b/crates/maestro-daemon/src/projects.rs
@@ -261,17 +261,13 @@ impl ProjectScanner {
     }
 
     /// Cached snapshot, rescanning (off-thread) when the TTL has lapsed.
+    /// Also the background timer's entry point: a tick inside the TTL is a
+    /// no-op (#75).
     pub async fn repos(&self) -> std::sync::Arc<Vec<DiscoveredRepo>> {
-        self.repos_inner(false).await
-    }
-
-    async fn repos_inner(&self, force: bool) -> std::sync::Arc<Vec<DiscoveredRepo>> {
         let mut cache = self.cache.lock().await;
-        if !force {
-            if let Some((at, repos)) = cache.as_ref() {
-                if at.elapsed() < self.ttl {
-                    return repos.clone();
-                }
+        if let Some((at, repos)) = cache.as_ref() {
+            if at.elapsed() < self.ttl {
+                return repos.clone();
             }
         }
         let roots = self.roots.clone();
@@ -287,11 +283,11 @@ impl ProjectScanner {
         repos
     }
 
-    /// Rescan now, ignoring the TTL. Called by the background timer — going
-    /// through `repos()` would hit the cache and make most ticks no-ops,
-    /// leaving requests to pay for the rescan instead (#54 review).
+    /// One background-refresh tick: rescan only if the cached snapshot has
+    /// passed its TTL (#75) — the timer used to bypass it and re-walk the
+    /// roots every [`REFRESH_INTERVAL`].
     async fn refresh(&self) {
-        self.repos_inner(true).await;
+        self.repos().await;
     }
 
     /// Spawn the slow background refresh task. Drop the returned handle to
@@ -544,6 +540,32 @@ mod tests {
         assert_eq!(fresh[0].name, "late");
     }
 
+    #[tokio::test]
+    async fn background_refresh_honours_the_ttl() {
+        let tmp = tempfile::tempdir().unwrap();
+        let mut scanner = ProjectScanner::new(
+            vec![tmp.path().to_path_buf()],
+            3,
+            PathBuf::from("/nonexistent"),
+        );
+
+        let empty = scanner.repos().await;
+        assert!(empty.is_empty());
+
+        make_repo(tmp.path(), "late");
+        // A background tick inside the TTL must not re-walk the filesystem:
+        // the new repo stays invisible until the cache expires.
+        scanner.refresh().await;
+        assert!(scanner.repos().await.is_empty());
+
+        // Once the TTL lapses, the next tick picks it up.
+        scanner.ttl = Duration::ZERO;
+        scanner.refresh().await;
+        let fresh = scanner.repos().await;
+        assert_eq!(fresh.len(), 1);
+        assert_eq!(fresh[0].name, "late");
+    }
+
     #[test]
     fn disabled_scanner_always_serves_empty() {
         let scanner = ProjectScanner::disabled();
diff --git a/crates/maestro-tui/src/app.rs b/crates/maestro-tui/src/app.rs
index cecf43e..dff6470 100644
--- a/crates/maestro-tui/src/app.rs
+++ b/crates/maestro-tui/src/app.rs
@@ -175,7 +175,8 @@ impl App {
                     // Render on next loop iteration.
                 }
                 _ = tokio::time::sleep(Duration::from_millis(33)) => {
-                    // 30 Hz heartbeat.
+                    let effects = self.poll_due_probes_at(std::time::Instant::now());
+                    self.perform(effects).await;
                 }
             }
         }
@@ -439,7 +440,7 @@ impl App {
         if draft.take_name_refill() {
             effects.push(Effect::RefillNames(tab_idx));
         }
-        if let Some((seq, path)) = draft.take_gitroot_probe() {
+        if let Some((seq, path)) = draft.take_gitroot_probe(std::time::Instant::now()) {
             effects.push(Effect::ProbeGitRoot {
                 tab: tab_idx,
                 seq,
@@ -452,6 +453,26 @@ impl App {
         effects
     }
 
+    /// Fire any draft gitroot probes whose debounce window has elapsed (#74).
+    /// The 30 Hz heartbeat calls this so a burst of typing issues its one
+    /// probe even after the last keystroke.
+    fn poll_due_probes_at(&mut self, now: std::time::Instant) -> Vec<Effect> {
+        let mut effects = Vec::new();
+        for tab_idx in 0..self.state.tabs.len() {
+            let Some(PaneRef::Draft(draft)) = self.state.tabs[tab_idx].pane.as_mut() else {
+                continue;
+            };
+            if let Some((seq, path)) = draft.take_gitroot_probe(now) {
+                effects.push(Effect::ProbeGitRoot {
+                    tab: tab_idx,
+                    seq,
+                    path,
+                });
+            }
+        }
+        effects
+    }
+
     /// Populate a freshly opened draft: presets from `/api/info` (falling back
     /// to the built-ins already in place), projects from `/api/projects`, and
     /// a first name batch. Applies only if that tab still shows the draft —
@@ -1328,9 +1349,7 @@ mod tests {
         for c in "crimson-otter".chars() {
             app.handle_draft_input(&InputKey::char(c));
         }
-        app.handle_draft_input(&InputKey::Tab); // → worktree toggle
-        app.handle_draft_input(&InputKey::Tab); // → branch mode
-        app.handle_draft_input(&InputKey::Tab); // → new-branch name
+        app.handle_draft_input(&InputKey::Tab); // → advanced disclosure (collapsed, #93)
         app.handle_draft_input(&InputKey::Tab); // → submit
 
         match app.handle_draft_input(&InputKey::Enter).as_slice() {
@@ -1347,10 +1366,11 @@ mod tests {
         }
     }
 
-    /// Editing the raw path with the worktree toggle on schedules a
-    /// `/api/gitroot` probe so the section learns its base repo (#65).
+    /// Editing the raw path schedules a `/api/gitroot` probe only once the
+    /// keystroke burst settles (#74): nothing fires inside the debounce
+    /// window; the heartbeat picks the due probe up afterwards.
     #[test]
-    fn typing_a_raw_path_schedules_a_gitroot_probe() {
+    fn typing_a_raw_path_schedules_a_debounced_gitroot_probe() {
         let mut app = make_app();
         app.dispatch(Action::NewDraftPane);
         let PaneRef::Draft(draft) = app.state.active_tab_mut().pane.as_mut().unwrap() else {
@@ -1359,13 +1379,24 @@ mod tests {
         draft.cwd_raw_visible = true;
         draft.focused_field = DraftField::CwdRaw;
 
-        let effects = app.handle_draft_input(&InputKey::char('/'));
+        // A burst of keystrokes fires nothing.
+        for c in "/opt/tooling".chars() {
+            assert!(app.handle_draft_input(&InputKey::char(c)).is_empty());
+            assert!(app.poll_due_probes_at(std::time::Instant::now()).is_empty());
+        }
+
+        // Once the quiet period passes, exactly one probe is due.
+        let due = std::time::Instant::now()
+            + std::time::Duration::from_millis(crate::draft::GITROOT_PROBE_DEBOUNCE_MS) * 10;
+        match app.poll_due_probes_at(due).as_slice() {
+            [Effect::ProbeGitRoot { tab: 0, path, .. }] => {
+                assert_eq!(path, &std::path::PathBuf::from("/opt/tooling"));
+            }
+            other => panic!("expected one ProbeGitRoot effect, got {other:?}"),
+        }
         assert!(
-            matches!(
-                effects.as_slice(),
-                [Effect::ProbeGitRoot { tab: 0, seq: 2, .. }]
-            ),
-            "{effects:?}"
+            app.poll_due_probes_at(due).is_empty(),
+            "the probe is consumed once"
         );
     }
 
@@ -1520,8 +1551,8 @@ mod tests {
             panic!("expected a draft pane");
         };
         assert_eq!(draft.command(), "aider");
-        assert_eq!(draft.rows.len(), 1);
-        assert_eq!(draft.rows[0].project.name, "maestro");
+        assert_eq!(draft.groups.len(), 1);
+        assert_eq!(draft.groups[0].main.name, "maestro");
         assert_eq!(draft.home_dir, "/home/u");
         assert_eq!(draft.name.value(), "crimson-otter");
     }
diff --git a/crates/maestro-tui/src/config.rs b/crates/maestro-tui/src/config.rs
index 9f4eb2b..790e6bd 100644
--- a/crates/maestro-tui/src/config.rs
+++ b/crates/maestro-tui/src/config.rs
@@ -238,6 +238,26 @@ mod tests {
         assert!(s.contains("ctrl-glorb"), "diagnostic: {s}");
     }
 
+    /// Regression for #70: the previous canonical form of a real Shift+S
+    /// keypress was `"shift-S"`, which the default `"S"` binding never
+    /// matched. Drive the actual crossterm event, not the binding string,
+    /// so the dead-key bug can't come back unnoticed.
+    #[test]
+    fn real_shift_s_keypress_resolves_to_fast_forward_spawn() {
+        use crossterm::event::{Event as CtEvent, KeyCode, KeyEvent, KeyModifiers};
+
+        use crate::input::{canonicalise, Region};
+
+        let cfg = TuiConfig::load(&TuiSection::default()).unwrap();
+        let ev = CtEvent::Key(KeyEvent::new(KeyCode::Char('S'), KeyModifiers::SHIFT));
+        let key = canonicalise(&ev, |_, _| Region::Unknown).expect("key event canonicalises");
+
+        assert_eq!(
+            cfg.keymap.resolve(Mode::Normal, &key.canonical()),
+            Some(Action::FastForwardSpawn),
+        );
+    }
+
     #[test]
     fn custom_chord_timeout_is_applied() {
         let mut section = TuiSection::default();
diff --git a/crates/maestro-tui/src/draft.rs b/crates/maestro-tui/src/draft.rs
index 3e26386..ab5db6a 100644
--- a/crates/maestro-tui/src/draft.rs
+++ b/crates/maestro-tui/src/draft.rs
@@ -7,16 +7,35 @@
 //!
 //! Field groups (#64), mirroring the web form (`web/src/spawnForm.ts`):
 //! command presets from `/api/info` (with an implicit `custom` free-text
-//! entry), a project picker fed by [`crate::projects`] over `/api/projects`
-//! plus an `Other directory…` escape hatch, a generated session name from
+//! entry), a two-step project/worktree picker (#96, mirroring the web
+//! redesign in #95) fed by [`crate::projects`] over `/api/projects` plus an
+//! `Other directory…` escape hatch, a generated session name from
 //! `/api/names` with a reroll key, and validation that reports which field is
 //! missing instead of posting an empty request. A worktree section (#65)
 //! mirrors `web/src/spawnForm.ts`: on by default over a git repository,
 //! branch tracking the generated name until touched, with a new-or-existing
 //! branch switch fed by `/api/branches`.
+//!
+//! The picker itself is two steps (#96), verbatim from the rules in
+//! `web/src/spawnForm.ts`'s "working-directory picker (#95)" comment:
+//!  1. Step one is one box per repository (name, then full path). A worktree
+//!     is a box only when its main checkout is missing from the scan.
+//!  2. The filter keeps a repository when the query matches it or any of its
+//!     worktrees, so a worktree name still finds its box.
+//!  3. Picking a box reveals step two: "+ new", then that repository's
+//!     worktrees newest-first. "Other directory…" clears both steps.
+//!  4. "+ new" is the default selection — except on a box that is itself a
+//!     linked worktree, which defaults to that worktree.
+//!  5. "+ new" means create: cwd is the repository, create-worktree on.
+//!     An existing worktree means run in it: cwd is that worktree,
+//!     create-worktree OFF. The daemon never adopts (docs/WORKTREES.md), so
+//!     these are separate acts.
+//!  6. Neither step probes `/api/gitroot`; the scan already reports
+//!     repository membership. Only the free-text hatch pays for a probe.
 
 use std::collections::VecDeque;
 use std::path::{Path, PathBuf};
+use std::time::{Duration, Instant};
 
 use chrono::{DateTime, Utc};
 use maestro_config::{builtin_presets, custom_preset};
@@ -35,6 +54,12 @@ use crate::projects;
 /// dry.
 pub const NAME_BATCH_SIZE: usize = 20;
 
+/// Quiet period after raw-path typing before a `/api/gitroot` probe fires
+/// (#74). Every keystroke resets it, so a burst issues one request once the
+/// operator pauses. Must stay equal to `GITROOT_PROBE_DEBOUNCE_MS` in
+/// web/src/spawnForm.ts so both clients debounce alike.
+pub const GITROOT_PROBE_DEBOUNCE_MS: u64 = 250;
+
 /// Width of the fixed label gutter every form line starts with (`cmd: `,
 /// `dir: `, …).
 const GUTTER: usize = 5;
@@ -45,11 +70,19 @@ pub enum DraftField {
     Preset,
     /// Free-text command, reachable only while a custom preset is selected.
     CustomCommand,
-    /// Project picker: typing filters, Up / Down highlight, Enter picks.
+    /// Step one: repository picker. Typing filters, Up / Down highlight,
+    /// Enter picks and reveals step two (#96).
     DirPicker,
     /// Free-text path, revealed by picking `Other directory…`.
     CwdRaw,
+    /// Step two, shown once a repository is picked: "+ new" then that
+    /// repository's worktrees newest-first (#96 rule 3). Up / Down move and
+    /// apply immediately, mirroring the web form's per-click choice.
+    WorktreeChoice,
     Name,
+    /// Disclosure collapsing the worktree/branch controls below (#93).
+    /// Closed by default; Enter / Space toggles.
+    Advanced,
     /// Worktree on/off for this session (#65). Enter / Space toggles.
     WorktreeToggle,
     /// New-vs-existing branch source; Left / Right switches.
@@ -71,14 +104,50 @@ pub enum WorktreeBranchMode {
     Existing,
 }
 
-/// One flattened project-picker entry: a discovered repo/worktree plus what
-/// rendering needs to know about it. `indent` marks worktrees nested under
-/// their main checkout.
+/// "new" (create a worktree) or an existing worktree to run in — the TUI
+/// mirror of the web form's `WorktreeChoice` (#96 rule 5).
 #[derive(Debug, Clone, PartialEq, Eq)]
-pub struct DraftRow {
+pub enum WorktreeChoice {
+    New,
+    Existing(PathBuf),
+}
+
+/// One repository box for step one of the picker (#96 rule 1): the main
+/// checkout (or, when it's missing from the scan, its freshest worktree
+/// standing in for it) plus every other worktree of the same repository.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct DraftGroup {
+    pub main: Project,
+    pub main_stale: bool,
+    pub worktrees: Vec<DraftWorktreeRow>,
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct DraftWorktreeRow {
     pub project: Project,
     pub stale: bool,
-    pub indent: bool,
+}
+
+/// The repository key a [`DraftGroup`] was formed under — same key
+/// `projects::group_projects` groups by, kept separately because the main
+/// box's own path only equals it when the main checkout itself was found.
+fn group_key(main: &Project) -> PathBuf {
+    main.base_repo.clone().unwrap_or_else(|| main.path.clone())
+}
+
+/// Every worktree of a group, including the group's own box when the scan
+/// found no main checkout to nest it under — the TUI mirror of the web
+/// form's `worktreesOf`. Already newest-first: when the main box stands in
+/// for a missing main checkout it is the freshest member by construction
+/// ([`projects::group_projects`]), and `worktrees` itself is sorted
+/// newest-first.
+fn worktree_rows_of(group: &DraftGroup) -> Vec<Project> {
+    let mut rows = Vec::new();
+    if group.main.is_worktree {
+        rows.push(group.main.clone());
+    }
+    rows.extend(group.worktrees.iter().map(|w| w.project.clone()));
+    rows
 }
 
 /// Why a submit was refused. The message names the missing field so the form
@@ -123,15 +192,29 @@ pub struct DraftPane {
     pub presets: Vec<SpawnPreset>,
     pub selected_preset: usize,
     pub custom_command: crate::text_input::TextInput,
-    /// Discovered projects, sorted fresh-first with worktrees nested.
-    pub rows: Vec<DraftRow>,
+    /// Discovered projects, sorted fresh-first and grouped by repository
+    /// (#96 step one).
+    pub groups: Vec<DraftGroup>,
     pub filter: crate::text_input::TextInput,
-    /// Highlighted entry within the visible list; the implicit
-    /// `Other directory…` entry sits at index `visible_rows().len()`.
+    /// Highlighted entry within the visible step-one list; the implicit
+    /// `Other directory…` entry sits at index `visible_groups().len()`.
     pub highlighted: usize,
+    /// Set by an explicit Up/Down move, cleared by typing (#97): typing
+    /// mirrors the web form's plain filter input, where Enter always
+    /// resolves and submits; an explicit arrow move mirrors Tab landing on
+    /// a not-yet-active picker button there, where a first Enter only
+    /// chooses. See `dir_picker_choice_active` at the Enter match arm.
+    dir_picker_navigated: bool,
     pub cwd_raw_visible: bool,
     pub cwd_raw: crate::text_input::TextInput,
     pub picked_cwd: Option<PathBuf>,
+    /// The repository picked in step one ([`group_key`] of its main box),
+    /// `None` until a box is picked. Looked up fresh in `groups` rather than
+    /// cached, so a project-list refresh can't leave it stale.
+    pub selected_group_key: Option<PathBuf>,
+    /// Step two's current pick (#96 rule 4/5). Meaningless while
+    /// `selected_group_key` is `None`.
+    pub worktree_choice: WorktreeChoice,
     pub name: crate::text_input::TextInput,
     pub name_queue: VecDeque<String>,
     /// Set once the operator types or rerolls a name; guards refills against
@@ -141,6 +224,10 @@ pub struct DraftPane {
     /// Worktree on for this spawn (#65). Defaults on; a failed gitroot probe
     /// unticks it, like the web form.
     pub worktree_enabled: bool,
+    /// Whether the worktree/branch controls are collapsed behind the
+    /// "Advanced options" disclosure (#93). Closed by default — most spawns
+    /// take the default target.
+    pub advanced_collapsed: bool,
     /// Enclosing repository of the chosen target — from the project scan for
     /// picked rows, `/api/gitroot` for raw paths. `None` until known.
     pub base_repo: Option<PathBuf>,
@@ -149,6 +236,9 @@ pub struct DraftPane {
     /// Bumped on every target change; answers carrying an older seq are stale.
     probe_seq: u32,
     needs_probe: bool,
+    /// When the pending probe may fire (debounce, #74). Typing into the raw
+    /// path resets it; a discrete action like the toggle makes it due at once.
+    probe_due_at: Option<Instant>,
     /// Set when a probe found no repository (drives the rendered hint).
     repo_missing: bool,
     /// New-branch name. Tracks [`Self::name`] until edited, like the web form.
@@ -183,21 +273,26 @@ impl Default for DraftPane {
             presets,
             selected_preset: 0,
             custom_command: crate::text_input::TextInput::default(),
-            rows: Vec::new(),
+            groups: Vec::new(),
             filter: crate::text_input::TextInput::default(),
             highlighted: 0,
+            dir_picker_navigated: false,
             cwd_raw_visible: false,
             cwd_raw: crate::text_input::TextInput::default(),
             picked_cwd: None,
+            selected_group_key: None,
+            worktree_choice: WorktreeChoice::New,
             name: crate::text_input::TextInput::default(),
             name_queue: VecDeque::new(),
             name_touched: false,
             needs_name_refill: false,
             worktree_enabled: true,
+            advanced_collapsed: true,
             base_repo: None,
             probed_cwd: None,
             probe_seq: 0,
             needs_probe: false,
+            probe_due_at: None,
             repo_missing: false,
             branch: crate::text_input::TextInput::default(),
             branch_edited: false,
@@ -229,24 +324,24 @@ impl DraftPane {
             .unwrap_or(0);
     }
 
-    /// Replace the project snapshot: sort fresh-first (#54), nest worktrees
-    /// under their main checkout, and precompute staleness for rendering.
+    /// Replace the project snapshot: sort fresh-first (#54), group by
+    /// repository (#96), and precompute staleness for rendering.
     pub fn set_projects(&mut self, discovered: Vec<Project>, now: DateTime<Utc>) {
         let sorted = projects::sort_projects(discovered, now);
         let groups = projects::group_projects(&sorted);
-        self.rows = groups
+        self.groups = groups
             .iter()
-            .flat_map(|g| {
-                std::iter::once(DraftRow {
-                    stale: projects::is_stale(g.main, now),
-                    indent: false,
-                    project: g.main.clone(),
-                })
-                .chain(g.worktrees.iter().map(|wt| DraftRow {
-                    stale: projects::is_stale(wt, now),
-                    indent: true,
-                    project: (*wt).clone(),
-                }))
+            .map(|g| DraftGroup {
+                main: g.main.clone(),
+                main_stale: projects::is_stale(g.main, now),
+                worktrees: g
+                    .worktrees
+                    .iter()
+                    .map(|wt| DraftWorktreeRow {
+                        project: (*wt).clone(),
+                        stale: projects::is_stale(wt, now),
+                    })
+                    .collect(),
             })
             .collect();
         self.highlighted = self.highlighted.min(self.entry_count().saturating_sub(1));
@@ -320,18 +415,23 @@ impl DraftPane {
         self.repo_missing = false;
         self.probe_seq += 1;
         self.needs_probe = false;
+        self.probe_due_at = None;
         self.probed_cwd = self.cwd();
         self.branches_for = None;
         self.schedule_branch_load();
     }
 
     /// A target with an unknown repo (raw path edit or the Other… hatch).
-    /// Cancels any in-flight probe and requests a fresh one.
+    /// Cancels any in-flight probe and schedules a fresh one after the
+    /// debounce window (#74).
     fn note_unknown_repo(&mut self) {
         self.base_repo = None;
         self.repo_missing = false;
         self.probe_seq += 1;
         self.needs_probe = self.worktree_enabled && self.cwd().is_some();
+        self.probe_due_at = self
+            .needs_probe
+            .then(|| Instant::now() + Duration::from_millis(GITROOT_PROBE_DEBOUNCE_MS));
         self.branches_for = None;
         self.schedule_branch_load();
     }
@@ -342,14 +442,19 @@ impl DraftPane {
         }
     }
 
-    /// Consume the gitroot-probe request: the caller fetches
+    /// Consume the gitroot-probe request once its debounce window has passed
+    /// (`now` at or after [`Self::probe_due_at`]): the caller fetches
     /// `GET /api/gitroot?path=…` and reports back via [`Self::resolve_gitroot`]
-    /// with the same seq.
-    pub fn take_gitroot_probe(&mut self) -> Option<(u32, PathBuf)> {
+    /// with the same seq. Returns `None` while typing is still in flight.
+    pub fn take_gitroot_probe(&mut self, now: Instant) -> Option<(u32, PathBuf)> {
         if !self.needs_probe {
             return None;
         }
+        if now < self.probe_due_at? {
+            return None;
+        }
         self.needs_probe = false;
+        self.probe_due_at = None;
         let cwd = self.cwd()?;
         self.probe_seq += 1;
         Some((self.probe_seq, cwd))
@@ -363,6 +468,7 @@ impl DraftPane {
             return;
         }
         self.needs_probe = false;
+        self.probe_due_at = None;
         self.probed_cwd = self.cwd();
         match root {
             Some(repo) => {
@@ -420,6 +526,21 @@ impl DraftPane {
         self.set_branch_mode(next);
     }
 
+    /// Enter / Space on the "Advanced options" header (#93).
+    pub fn toggle_advanced(&mut self) {
+        self.advanced_collapsed = !self.advanced_collapsed;
+    }
+
+    /// What the collapsed header says about this spawn's default, so it stays
+    /// visible without expanding (#93).
+    fn advanced_summary(&self) -> &'static str {
+        if self.worktree_enabled {
+            "creates a worktree"
+        } else {
+            "no worktree"
+        }
+    }
+
     /// Enter / Space on the toggle. Re-enabling reuses a still-valid repo
     /// answer instead of re-probing.
     pub fn toggle_worktree(&mut self) {
@@ -434,7 +555,9 @@ impl DraftPane {
         }
         if self.base_repo.is_none() {
             self.probe_seq += 1;
+            // A discrete toggle, not a keystroke burst: due immediately.
             self.needs_probe = cwd.is_some();
+            self.probe_due_at = self.needs_probe.then(Instant::now);
         }
         self.schedule_branch_load();
     }
@@ -576,15 +699,20 @@ impl DraftPane {
         order.push(DraftField::DirPicker);
         if self.cwd_raw_visible {
             order.push(DraftField::CwdRaw);
+        } else if self.selected_group_key.is_some() {
+            order.push(DraftField::WorktreeChoice);
         }
         order.push(DraftField::Name);
-        order.push(DraftField::WorktreeToggle);
-        if self.worktree_body_visible() {
-            order.push(DraftField::BranchMode);
-            order.push(match self.branch_mode {
-                WorktreeBranchMode::New => DraftField::BranchNew,
-                WorktreeBranchMode::Existing => DraftField::BranchExisting,
-            });
+        order.push(DraftField::Advanced);
+        if !self.advanced_collapsed {
+            order.push(DraftField::WorktreeToggle);
+            if self.worktree_body_visible() {
+                order.push(DraftField::BranchMode);
+                order.push(match self.branch_mode {
+                    WorktreeBranchMode::New => DraftField::BranchNew,
+                    WorktreeBranchMode::Existing => DraftField::BranchExisting,
+                });
+            }
         }
         order.extend([DraftField::Submit]);
         order
@@ -617,18 +745,25 @@ impl DraftPane {
             ((self.selected_preset as i32) + delta).rem_euclid(len as i32) as usize;
     }
 
-    /// Rows surviving the type-to-filter, in display order.
-    pub fn visible_rows(&self) -> Vec<&DraftRow> {
+    /// Step-one boxes surviving the type-to-filter, in display order. A
+    /// group survives when the query matches its box or any of its
+    /// worktrees (#96 rule 2), so a worktree name still finds its box.
+    pub fn visible_groups(&self) -> Vec<&DraftGroup> {
         let query = self.filter.value();
-        self.rows
+        self.groups
             .iter()
-            .filter(|r| projects::matches_filter(&r.project, query))
+            .filter(|g| {
+                projects::matches_filter(&g.main, query)
+                    || g.worktrees
+                        .iter()
+                        .any(|w| projects::matches_filter(&w.project, query))
+            })
             .collect()
     }
 
     /// Visible entries including the trailing implicit `Other directory…`.
     pub fn entry_count(&self) -> usize {
-        self.visible_rows().len() + 1
+        self.visible_groups().len() + 1
     }
 
     /// Highlight clamped to the current entry count.
@@ -641,33 +776,62 @@ impl DraftPane {
         if count == 0 {
             return;
         }
+        self.dir_picker_navigated = true;
         self.highlighted = ((self.selection() as i32) + delta).rem_euclid(count) as usize;
     }
 
-    /// Act on the highlighted picker entry: a project becomes the working
-    /// directory (and pre-selects the command it was last used with), while
-    /// the trailing entry reveals the free-text path input.
+    /// The step-one group currently picked, looked up fresh against the
+    /// latest snapshot so a project-list refresh can't leave a stale clone
+    /// behind.
+    pub fn selected_group(&self) -> Option<DraftGroup> {
+        let key = self.selected_group_key.as_ref()?;
+        self.groups
+            .iter()
+            .find(|g| &group_key(&g.main) == key)
+            .cloned()
+    }
+
+    /// Step two's rows: "+ new" first, then the repository's worktrees
+    /// newest-first (#96 rule 3). Empty while no group is picked.
+    pub fn worktree_choice_rows(&self) -> Vec<(WorktreeChoice, String, String)> {
+        let Some(group) = self.selected_group() else {
+            return Vec::new();
+        };
+        let mut rows = vec![(
+            WorktreeChoice::New,
+            "+ new".to_string(),
+            format!("new worktree of {}", group.main.name),
+        )];
+        rows.extend(worktree_rows_of(&group).into_iter().map(|p| {
+            (
+                WorktreeChoice::Existing(p.path.clone()),
+                p.name.clone(),
+                p.path.to_string_lossy().into_owned(),
+            )
+        }));
+        rows
+    }
+
+    /// Whether the highlighted step-one row is already the picked group
+    /// (#97): once true, a further Enter submits instead of re-picking it.
+    /// Always false on the trailing "Other directory…" row — picking it is
+    /// never a no-op, so it always takes the Enter to reveal the raw field.
+    fn dir_picker_choice_active(&self) -> bool {
+        let visible = self.visible_groups();
+        let sel = self.selection();
+        sel < visible.len()
+            && self.selected_group_key.as_ref() == Some(&group_key(&visible[sel].main))
+    }
+
+    /// Act on the highlighted step-one box: reveals step two, defaulting per
+    /// rule 4. The trailing entry reveals the free-text path input and
+    /// clears both steps (rule 3).
     pub fn select_entry(&mut self) {
-        let visible = self.visible_rows();
+        let visible = self.visible_groups();
         let sel = self.selection();
         if sel < visible.len() {
-            let project = visible[sel].project.clone();
-            self.picked_cwd = Some(project.path.clone());
-            self.cwd_raw_visible = false;
-            // The scan already knows this directory's repo (#61): no probe
-            // round trip needed, exactly like the web form.
-            let repo = project
-                .base_repo
-                .clone()
-                .unwrap_or_else(|| project.path.clone());
-            if let Some(cmd) = project.last_command.as_deref() {
-                if !cmd.is_empty() {
-                    if let Some(idx) = self.presets.iter().position(|p| p.command == cmd) {
-                        self.selected_preset = idx;
-                    }
-                }
-            }
-            self.note_picked_repo(repo);
+            let group = visible[sel].clone();
+            self.select_group(&group);
             return;
         }
         let seed = self.cwd().unwrap_or_else(|| {
@@ -677,6 +841,7 @@ impl DraftPane {
                 PathBuf::from(&self.home_dir)
             }
         });
+        self.clear_project_selection();
         self.picked_cwd = None;
         self.cwd_raw_visible = true;
         self.cwd_raw = crate::text_input::TextInput::with_value(seed.to_string_lossy());
@@ -684,6 +849,95 @@ impl DraftPane {
         self.note_unknown_repo();
     }
 
+    /// Pick a step-one box: remember it and default step two (#96 rule 4) —
+    /// "+ new", except a box that is itself a linked worktree (the scan
+    /// found no main checkout for it), which defaults to that worktree.
+    fn select_group(&mut self, group: &DraftGroup) {
+        self.selected_group_key = Some(group_key(&group.main));
+        let default = if group.main.is_worktree {
+            WorktreeChoice::Existing(group.main.path.clone())
+        } else {
+            WorktreeChoice::New
+        };
+        self.apply_worktree_choice(default);
+    }
+
+    /// Clear both picker steps (#96 rule 3), e.g. for `Other directory…`.
+    fn clear_project_selection(&mut self) {
+        self.selected_group_key = None;
+        self.worktree_choice = WorktreeChoice::New;
+    }
+
+    /// Apply a step-two pick (#96 rule 5): "+ new" targets the repository
+    /// itself with worktree creation on; an existing worktree targets it
+    /// directly with worktree creation off — the daemon never adopts
+    /// (docs/WORKTREES.md). Neither path probes `/api/gitroot` (rule 6): the
+    /// scan already reported this target's repository.
+    pub fn apply_worktree_choice(&mut self, choice: WorktreeChoice) {
+        let Some(group) = self.selected_group() else {
+            return;
+        };
+        let target = match &choice {
+            WorktreeChoice::New => group.main.clone(),
+            WorktreeChoice::Existing(path) => {
+                match worktree_rows_of(&group)
+                    .into_iter()
+                    .find(|p| &p.path == path)
+                {
+                    Some(p) => p,
+                    None => return,
+                }
+            }
+        };
+        self.worktree_choice = choice.clone();
+        self.picked_cwd = Some(target.path.clone());
+        self.cwd_raw_visible = false;
+        if let Some(cmd) = target.last_command.as_deref() {
+            if !cmd.is_empty() {
+                if let Some(idx) = self.presets.iter().position(|p| p.command == cmd) {
+                    self.selected_preset = idx;
+                }
+            }
+        }
+        match choice {
+            WorktreeChoice::New => {
+                self.worktree_enabled = true;
+                let repo = target
+                    .base_repo
+                    .clone()
+                    .unwrap_or_else(|| target.path.clone());
+                self.note_picked_repo(repo);
+            }
+            WorktreeChoice::Existing(_) => {
+                self.worktree_enabled = false;
+                self.base_repo = None;
+                self.repo_missing = false;
+                self.probe_seq += 1;
+                self.needs_probe = false;
+                self.probe_due_at = None;
+                self.probed_cwd = self.cwd();
+                self.branches_for = None;
+            }
+        }
+    }
+
+    /// Move step two's highlight and apply the newly-highlighted choice at
+    /// once, matching the web form's per-click pick — there is no separate
+    /// confirm step.
+    pub fn move_worktree_choice(&mut self, delta: i32) {
+        let rows = self.worktree_choice_rows();
+        let count = rows.len() as i32;
+        if count == 0 {
+            return;
+        }
+        let cur = rows
+            .iter()
+            .position(|(c, _, _)| *c == self.worktree_choice)
+            .unwrap_or(0) as i32;
+        let next = ((cur + delta).rem_euclid(count)) as usize;
+        self.apply_worktree_choice(rows[next].0.clone());
+    }
+
     /// Handle one keystroke while this draft owns input (Insert mode, pane
     /// focused). Returns [`DraftInputResult::Submit`] when the user accepts;
     /// the caller validates, fires the POST and replaces the draft with the
@@ -698,23 +952,41 @@ impl DraftPane {
                 self.prev_field();
                 DraftInputResult::Consumed
             }
-            InputKey::Enter => match self.focused_field {
-                DraftField::Submit => DraftInputResult::Submit,
-                DraftField::DirPicker => {
-                    self.select_entry();
+            // Enter submits from any field (#97), mirroring web/src/spawnForm.ts.
+            // Two fields keep their own Enter instead: `DirPicker`, whose
+            // highlighted row isn't the picked one until a first Enter chooses
+            // it (the next Enter, now that it's active, falls through to
+            // submit); and the disclosure/toggle pair (`Advanced`,
+            // `WorktreeToggle`), which activate on Enter like a button rather
+            // than submitting, same as the web form's own `<button>` controls.
+            InputKey::Enter if self.focused_field == DraftField::DirPicker => {
+                let is_other_row = self.selection() >= self.visible_groups().len();
+                let choose_only =
+                    is_other_row || (self.dir_picker_navigated && !self.dir_picker_choice_active());
+                self.select_entry();
+                if choose_only {
                     DraftInputResult::Consumed
+                } else {
+                    DraftInputResult::Submit
                 }
-                DraftField::WorktreeToggle => {
-                    self.toggle_worktree();
-                    DraftInputResult::Consumed
-                }
-                // The existing-branch selection is live; Enter just confirms.
-                DraftField::BranchExisting => DraftInputResult::Consumed,
-                _ => {
-                    self.next_field();
-                    DraftInputResult::Consumed
-                }
-            },
+            }
+            InputKey::Enter if self.focused_field == DraftField::Advanced => {
+                self.toggle_advanced();
+                DraftInputResult::Consumed
+            }
+            InputKey::Enter if self.focused_field == DraftField::WorktreeToggle => {
+                self.toggle_worktree();
+                DraftInputResult::Consumed
+            }
+            InputKey::Enter => DraftInputResult::Submit,
+            InputKey::Char {
+                c: ' ',
+                ctrl: false,
+                ..
+            } if self.focused_field == DraftField::Advanced => {
+                self.toggle_advanced();
+                DraftInputResult::Consumed
+            }
             InputKey::Char {
                 c: ' ',
                 ctrl: false,
@@ -731,6 +1003,14 @@ impl DraftPane {
                 self.move_selection(1);
                 DraftInputResult::Consumed
             }
+            InputKey::Up if self.focused_field == DraftField::WorktreeChoice => {
+                self.move_worktree_choice(-1);
+                DraftInputResult::Consumed
+            }
+            InputKey::Down if self.focused_field == DraftField::WorktreeChoice => {
+                self.move_worktree_choice(1);
+                DraftInputResult::Consumed
+            }
             InputKey::Left if self.focused_field == DraftField::Preset => {
                 self.cycle_preset(-1);
                 DraftInputResult::Consumed
@@ -770,6 +1050,7 @@ impl DraftPane {
                     DraftField::DirPicker => {
                         self.filter.handle_key(other);
                         self.highlighted = 0;
+                        self.dir_picker_navigated = false;
                     }
                     DraftField::CwdRaw => {
                         self.cwd_raw.handle_key(other);
@@ -803,13 +1084,30 @@ impl DraftPane {
 
         let show_custom = self.is_custom();
         let show_raw = self.cwd_raw_visible;
-        let show_wt_body = self.worktree_body_visible();
+        // The worktree toggle and its body stay behind the "Advanced options"
+        // disclosure (#93): collapsed hides both, regardless of what they'd
+        // otherwise show. The worktree *choice* step is not part of that —
+        // it belongs to the directory picker (#95 rule 3), so it stays
+        // visible once a project is picked.
+        let show_wt_toggle = !self.advanced_collapsed;
+        let show_wt_body = show_wt_toggle && self.worktree_body_visible();
+        let show_wt_choice = self.selected_group_key.is_some() && !show_raw;
+        let wt_choice_rows_data = if show_wt_choice {
+            self.worktree_choice_rows()
+        } else {
+            Vec::new()
+        };
+        // Up to four choices (new + worktrees) stay visible around the
+        // selection.
+        let wt_choice_capacity = wt_choice_rows_data.len().clamp(1, 4) as u16;
         // Up to three branch rows stay visible around the selection; held
         // branches need their reason on screen, so they aren't collapsed.
         let branch_rows = self.branches.len().clamp(1, 3) as u16;
-        let fixed: u16 = 3 /* tiles + dir + name */ + 1 /* worktree */ + 1 /* spawn */
+        let fixed: u16 = 3 /* tiles + dir + name */ + 1 /* advanced header */ + 1 /* spawn */
             + u16::from(show_custom)
             + u16::from(show_raw)
+            + u16::from(show_wt_toggle)
+            + u16::from(show_wt_choice) * wt_choice_capacity
             + u16::from(show_wt_body) * (1 + if self.branch_mode == WorktreeBranchMode::New { 1 } else { branch_rows })
             + u16::from(self.error.is_some());
         let list_capacity = (inner.height.saturating_sub(fixed)).max(1) as usize;
@@ -822,9 +1120,14 @@ impl DraftPane {
         constraints.push(Constraint::Length(list_capacity as u16));
         if show_raw {
             constraints.push(Constraint::Length(1));
+        } else if show_wt_choice {
+            constraints.push(Constraint::Length(wt_choice_capacity));
         }
         constraints.push(Constraint::Length(1)); // name
-        constraints.push(Constraint::Length(1)); // worktree toggle
+        constraints.push(Constraint::Length(1)); // advanced header
+        if show_wt_toggle {
+            constraints.push(Constraint::Length(1)); // worktree toggle
+        }
         if show_wt_body {
             constraints.push(Constraint::Length(1)); // branch mode
             match self.branch_mode {
@@ -898,7 +1201,10 @@ impl DraftPane {
             cursor = Some((col, filter_row.y));
         }
 
-        let visible = self.visible_rows();
+        // Step one (#96 rule 1): one box per repository, name then the FULL
+        // path — not the abbreviated form other lists use — so two projects
+        // sharing a basename stay distinguishable.
+        let visible = self.visible_groups();
         let sel = self.selection();
         let count = visible.len() + 1;
         let capacity = list_capacity.min(count);
@@ -911,7 +1217,7 @@ impl DraftPane {
             .iter()
             .take(start + capacity)
             .skip(start)
-            .map(|row| row.project.name.chars().count() + usize::from(row.indent) * 2)
+            .map(|group| group.main.name.chars().count())
             .max()
             .unwrap_or(0)
             .min(18);
@@ -924,31 +1230,19 @@ impl DraftPane {
             }
             let active = pane_focused && self.focused_field == DraftField::DirPicker && i == sel;
             let line = if i < visible.len() {
-                let row = visible[i];
+                let group = visible[i];
                 let mut base = Style::default();
-                if row.stale {
+                if group.main_stale {
                     base = base.add_modifier(Modifier::DIM);
                 }
                 if active {
                     base = base.add_modifier(Modifier::REVERSED);
                 }
-                let name = if row.indent {
-                    format!("  {}", row.project.name)
-                } else {
-                    row.project.name.clone()
-                };
                 Line::from(vec![
                     Span::styled(if active { ">" } else { " " }, base),
                     Span::raw(" "),
-                    Span::styled(format!("{name:<name_width$}"), base),
-                    Span::styled(
-                        format!(" {}", abbreviate_path(&row.project.path, &self.home_dir)),
-                        base,
-                    ),
-                    Span::styled(
-                        format!(" {}", row.project.last_command.clone().unwrap_or_default()),
-                        base,
-                    ),
+                    Span::styled(format!("{:<name_width$}", group.main.name), base),
+                    Span::styled(format!(" {}", group.main.path.display()), base),
                 ])
             } else {
                 let mut style = Style::default();
@@ -976,6 +1270,53 @@ impl DraftPane {
             if self.focused_field == DraftField::CwdRaw {
                 cursor = Some((col, row.y));
             }
+        } else if show_wt_choice {
+            // Step two (#96 rule 3): "+ new" first, then the repository's
+            // worktrees newest-first.
+            let choice_rows = wt_choice_rows_data;
+            let csel = choice_rows
+                .iter()
+                .position(|(c, _, _)| *c == self.worktree_choice)
+                .unwrap_or(0);
+            let ccap = (wt_choice_capacity as usize).min(choice_rows.len().max(1));
+            let cstart = if csel >= ccap { csel + 1 - ccap } else { 0 };
+            let label_width = choice_rows
+                .iter()
+                .skip(cstart)
+                .take(ccap)
+                .map(|(_, label, _)| label.chars().count())
+                .max()
+                .unwrap_or(0)
+                .min(18);
+            let choice_row = next_row();
+            for i in cstart..cstart + ccap {
+                let y = choice_row.y + (i - cstart) as u16;
+                if y >= choice_row.y + choice_row.height || i >= choice_rows.len() {
+                    break;
+                }
+                let (_, label, sub) = &choice_rows[i];
+                let active =
+                    pane_focused && self.focused_field == DraftField::WorktreeChoice && i == csel;
+                let mut base = Style::default();
+                if active {
+                    base = base.add_modifier(Modifier::REVERSED);
+                }
+                let line = Line::from(vec![
+                    Span::styled(if active { ">" } else { " " }, base),
+                    Span::raw(" "),
+                    Span::styled(format!("{label:<label_width$}"), base),
+                    Span::styled(format!(" {sub}"), base),
+                ]);
+                f.render_widget(
+                    Paragraph::new(line),
+                    Rect {
+                        x: choice_row.x + GUTTER as u16,
+                        y,
+                        width: choice_row.width.saturating_sub(GUTTER as u16),
+                        height: 1,
+                    },
+                );
+            }
         }
 
         // -- name + reroll ---------------------------------------------------------
@@ -1001,33 +1342,55 @@ impl DraftPane {
             },
         );
 
+        // -- advanced disclosure (#93) ------------------------------------------
+        let advanced_row = next_row();
+        f.render_widget(
+            Paragraph::new(Line::from(vec![
+                Span::raw(format!("{:<GUTTER$}", "adv:")),
+                Span::styled(
+                    format!(
+                        "[{}] Advanced options",
+                        if self.advanced_collapsed { "+" } else { "-" }
+                    ),
+                    field_style(DraftField::Advanced),
+                ),
+                Span::styled(
+                    format!(" — {}", self.advanced_summary()),
+                    Style::default().add_modifier(Modifier::DIM),
+                ),
+            ])),
+            advanced_row,
+        );
+
         // -- worktree (#65) -----------------------------------------------------
-        let wt_row = next_row();
-        let hint = if self.cwd().is_none() {
-            Some("choose a directory first")
-        } else if self.repo_missing {
-            Some("not inside a git repository")
-        } else if !self.worktree_enabled {
-            Some("off — spawns in the checkout itself")
-        } else {
-            None
-        };
-        let mut tiles = vec![Span::raw(format!("{:<GUTTER$}", "wt:"))];
-        tiles.push(Span::styled(
-            if self.worktree_enabled {
-                "[x] worktree"
+        if show_wt_toggle {
+            let wt_row = next_row();
+            let hint = if self.cwd().is_none() {
+                Some("choose a directory first")
+            } else if self.repo_missing {
+                Some("not inside a git repository")
+            } else if !self.worktree_enabled {
+                Some("off — spawns in the checkout itself")
             } else {
-                "[ ] worktree"
-            },
-            field_style(DraftField::WorktreeToggle),
-        ));
-        if let Some(hint) = hint {
+                None
+            };
+            let mut tiles = vec![Span::raw(format!("{:<GUTTER$}", "wt:"))];
             tiles.push(Span::styled(
-                format!(" {hint}"),
-                Style::default().add_modifier(Modifier::DIM),
+                if self.worktree_enabled {
+                    "[x] worktree"
+                } else {
+                    "[ ] worktree"
+                },
+                field_style(DraftField::WorktreeToggle),
             ));
+            if let Some(hint) = hint {
+                tiles.push(Span::styled(
+                    format!(" {hint}"),
+                    Style::default().add_modifier(Modifier::DIM),
+                ));
+            }
+            f.render_widget(Paragraph::new(Line::from(tiles)), wt_row);
         }
-        f.render_widget(Paragraph::new(Line::from(tiles)), wt_row);
 
         if show_wt_body {
             // branch source: new (created) vs existing (checked out as-is)
@@ -1055,7 +1418,7 @@ impl DraftPane {
             match self.branch_mode {
                 WorktreeBranchMode::New => {
                     let row = next_row();
-                    draw_gutter(f, row, "br:");
+                    draw_gutter(f, row, "new:");
                     let col =
                         draw_text_field(f, &self.branch, row, field_style(DraftField::BranchNew));
                     if self.focused_field == DraftField::BranchNew {
@@ -1079,6 +1442,7 @@ impl DraftPane {
                         .unwrap_or(0)
                         .min(20);
                     let list_row = next_row();
+                    draw_gutter(f, list_row, "pick:");
                     for i in start..(start + capacity).min(len.max(1)) {
                         let y = list_row.y + (i - start) as u16;
                         if y >= list_row.y + list_row.height {
@@ -1272,6 +1636,11 @@ mod tests {
         }
     }
 
+    /// A moment comfortably past the probe debounce window (#74).
+    fn probe_due() -> Instant {
+        Instant::now() + Duration::from_millis(GITROOT_PROBE_DEBOUNCE_MS) * 10
+    }
+
     #[test]
     fn defaults_fall_back_to_builtin_presets_with_custom_last() {
         let draft = DraftPane::default();
@@ -1371,12 +1740,8 @@ mod tests {
         let stale_pos = rendered.find("stale-repo").unwrap();
         assert!(fresh_pos < stale_pos, "fresh before stale:\n{rendered}");
         assert!(
-            rendered.contains("~/n/repo"),
-            "collapsed path stem:\n{rendered}"
-        );
-        assert!(
-            rendered.contains("claude"),
-            "last command shown:\n{rendered}"
+            rendered.contains("/home/u/new/repo"),
+            "the full path, not an abbreviation (#96 rule 1):\n{rendered}"
         );
 
         // Staleness dims the row's cells.
@@ -1405,11 +1770,15 @@ mod tests {
         assert_eq!(draft.focused_field, DraftField::DirPicker);
         typed(&mut draft, "maes");
         assert_eq!(
-            draft.visible_rows().len(),
+            draft.visible_groups().len(),
             1,
             "type-to-filter narrows the list"
         );
-        draft.on_input(&InputKey::Enter);
+        assert_eq!(
+            draft.on_input(&InputKey::Enter),
+            DraftInputResult::Submit,
+            "#97: the project filter submits with the highlighted project in one Enter"
+        );
         assert_eq!(
             draft.picked_cwd.as_deref(),
             Some(Path::new("/repos/maestro"))
@@ -1421,6 +1790,113 @@ mod tests {
         );
     }
 
+    #[test]
+    fn enter_submits_immediately_from_ordinary_fields_97() {
+        let mut draft = DraftPane {
+            picked_cwd: Some(PathBuf::from("/repos/maestro")),
+            base_repo: Some(PathBuf::from("/repos/maestro")),
+            probed_cwd: Some(PathBuf::from("/repos/maestro")),
+            ..DraftPane::default()
+        };
+
+        for field in [
+            DraftField::Preset,
+            DraftField::Name,
+            DraftField::BranchNew,
+            DraftField::BranchMode,
+        ] {
+            draft.focused_field = field;
+            assert_eq!(
+                draft.on_input(&InputKey::Enter),
+                DraftInputResult::Submit,
+                "{field:?} should submit on Enter"
+            );
+        }
+
+        draft.selected_preset = draft.presets.len() - 1; // custom
+        draft.focused_field = DraftField::CustomCommand;
+        assert_eq!(draft.on_input(&InputKey::Enter), DraftInputResult::Submit);
+    }
+
+    #[test]
+    fn enter_submits_immediately_from_eager_apply_pickers_97() {
+        // WorktreeChoice and BranchExisting apply their highlight the moment
+        // Up/Down moves it (#96 rule 3/#54) — there is no separate "chosen
+        // vs highlighted" state left to confirm, so Enter always submits.
+        let mut draft = DraftPane::default();
+        draft.set_projects(
+            vec![repo_project(
+                "maestro",
+                "/repos/maestro",
+                "/repos/maestro",
+                1,
+                None,
+            )],
+            Utc::now(),
+        );
+        draft.focused_field = DraftField::DirPicker;
+        draft.on_input(&InputKey::Enter); // picks "maestro", reveals step two
+
+        draft.focused_field = DraftField::WorktreeChoice;
+        assert_eq!(draft.on_input(&InputKey::Enter), DraftInputResult::Submit);
+
+        draft.focused_field = DraftField::BranchExisting;
+        assert_eq!(draft.on_input(&InputKey::Enter), DraftInputResult::Submit);
+    }
+
+    #[test]
+    fn dir_picker_enter_chooses_then_submits_once_the_highlight_is_the_active_pick_97() {
+        let mut draft = DraftPane::default();
+        draft.set_projects(
+            vec![
+                project("maestro", "/repos/maestro", 1, Some("claude")),
+                project("other", "/repos/other", 2, Some("zsh")),
+            ],
+            Utc::now(),
+        );
+        draft.focused_field = DraftField::DirPicker;
+        draft.on_input(&InputKey::Enter); // picks "maestro" (nothing chosen yet, submits)
+        assert_eq!(
+            draft.picked_cwd.as_deref(),
+            Some(Path::new("/repos/maestro"))
+        );
+
+        // Arrow onto the other row: an explicit navigation away from the
+        // active pick is "mid-selection" — Enter here only chooses it.
+        draft.move_selection(1);
+        assert_eq!(
+            draft.on_input(&InputKey::Enter),
+            DraftInputResult::Consumed,
+            "navigating to a different row must not submit the old pick"
+        );
+        assert_eq!(
+            draft.picked_cwd.as_deref(),
+            Some(Path::new("/repos/other")),
+            "the new row is chosen"
+        );
+
+        // The highlight is now the active pick: the next Enter submits.
+        assert_eq!(draft.on_input(&InputKey::Enter), DraftInputResult::Submit);
+    }
+
+    #[test]
+    fn dir_picker_enter_on_other_directory_never_submits_directly_97() {
+        let mut draft = DraftPane::default();
+        draft.set_projects(
+            vec![project("maestro", "/repos/maestro", 1, None)],
+            Utc::now(),
+        );
+        draft.focused_field = DraftField::DirPicker;
+        draft.move_selection(1); // onto "Other directory…"
+
+        assert_eq!(
+            draft.on_input(&InputKey::Enter),
+            DraftInputResult::Consumed,
+            "reveals the raw field instead of submitting, like the web form's own button"
+        );
+        assert_eq!(draft.focused_field, DraftField::CwdRaw);
+    }
+
     #[test]
     fn up_down_moves_the_highlight_within_the_list() {
         let mut draft = DraftPane::default();
@@ -1459,7 +1935,7 @@ mod tests {
         typed(&mut draft, "/opt/tooling");
         assert_eq!(draft.cwd(), Some(PathBuf::from("/home/u/opt/tooling")));
         // The raw target probed clean, so the worktree spec carries its repo.
-        let (seq, _) = draft.take_gitroot_probe().unwrap();
+        let (seq, _) = draft.take_gitroot_probe(probe_due()).unwrap();
         draft.resolve_gitroot(seq, Some(PathBuf::from("/home/u/opt/tooling")));
         draft.seed_names(vec!["amber-falcon".into()]);
         let req = draft.build_request().unwrap();
@@ -1680,7 +2156,7 @@ mod tests {
             Some(Path::new("/repos/maestro")),
             "a picked project resolves its base repo without a probe"
         );
-        assert!(draft.take_gitroot_probe().is_none());
+        assert!(draft.take_gitroot_probe(probe_due()).is_none());
         draft.seed_names(vec!["crimson-otter".into()]);
 
         let wt = draft.build_request().unwrap().worktree.unwrap();
@@ -1689,6 +2165,141 @@ mod tests {
         assert!(wt.create_branch);
     }
 
+    /// A worktree of `group.main` (matching a solo worktree, is_worktree true).
+    fn linked_worktree(name: &str, path: &str, base: &str, days_ago: i64) -> Project {
+        let mut wt = repo_project(name, path, base, days_ago, None);
+        wt.is_worktree = true;
+        wt
+    }
+
+    #[test]
+    fn a_query_matching_only_a_worktree_still_finds_its_repository_box() {
+        // #96 rule 2: the filter keeps a repository when the query matches
+        // it or any of its worktrees.
+        let mut draft = DraftPane::default();
+        draft.set_projects(
+            vec![
+                repo_project("main", "/repos/main", "/repos/main", 2, None),
+                linked_worktree("wt-91", "/repos/wt91", "/repos/main", 1),
+            ],
+            Utc::now(),
+        );
+        draft.focused_field = DraftField::DirPicker;
+        typed(&mut draft, "wt-91");
+        assert_eq!(
+            draft.visible_groups().len(),
+            1,
+            "the worktree's name matches its repository's box"
+        );
+        assert_eq!(draft.visible_groups()[0].main.name, "main");
+    }
+
+    #[test]
+    fn picking_a_repository_box_reveals_step_two_defaulting_to_new() {
+        // #96 rule 3 (reveal) + rule 4 (default): a repository box that is
+        // itself a real main checkout defaults step two to "+ new".
+        let mut draft = DraftPane::default();
+        draft.set_projects(
+            vec![
+                repo_project("main", "/repos/main", "/repos/main", 2, None),
+                linked_worktree("wt-91", "/repos/wt91", "/repos/main", 1),
+            ],
+            Utc::now(),
+        );
+        draft.focused_field = DraftField::DirPicker;
+        draft.on_input(&InputKey::Enter); // picks the only box: "main"
+
+        assert_eq!(draft.worktree_choice, WorktreeChoice::New);
+        assert_eq!(draft.picked_cwd.as_deref(), Some(Path::new("/repos/main")));
+        assert!(draft.worktree_enabled, "\"+ new\" means create-worktree on");
+        assert!(
+            draft.field_order().contains(&DraftField::WorktreeChoice),
+            "step two is now reachable"
+        );
+        assert!(
+            draft.take_gitroot_probe(probe_due()).is_none(),
+            "rule 6: the scan already knows this repository"
+        );
+
+        // Step two: move onto the worktree and pick it (rule 5 — existing
+        // worktree means run in it, create-worktree off).
+        draft.focused_field = DraftField::WorktreeChoice;
+        draft.on_input(&InputKey::Down);
+        assert_eq!(
+            draft.worktree_choice,
+            WorktreeChoice::Existing(PathBuf::from("/repos/wt91"))
+        );
+        assert_eq!(draft.picked_cwd.as_deref(), Some(Path::new("/repos/wt91")));
+        assert!(!draft.worktree_enabled);
+        assert!(
+            draft.build_request().unwrap().worktree.is_none(),
+            "no worktree record — the session just runs there"
+        );
+        assert!(
+            draft.take_gitroot_probe(probe_due()).is_none(),
+            "rule 6: still no probe for a scan-known worktree"
+        );
+    }
+
+    #[test]
+    fn a_box_that_is_itself_a_linked_worktree_defaults_to_running_there() {
+        // #96 rule 4: when the scan found no main checkout, the box IS a
+        // worktree, and step two defaults to that worktree instead of
+        // "+ new".
+        let mut draft = DraftPane::default();
+        draft.set_projects(
+            vec![linked_worktree(
+                "solo-wt",
+                "/repos/solo-wt",
+                "/repos/solo",
+                1,
+            )],
+            Utc::now(),
+        );
+        draft.focused_field = DraftField::DirPicker;
+        draft.on_input(&InputKey::Enter);
+
+        assert_eq!(
+            draft.worktree_choice,
+            WorktreeChoice::Existing(PathBuf::from("/repos/solo-wt"))
+        );
+        assert_eq!(
+            draft.picked_cwd.as_deref(),
+            Some(Path::new("/repos/solo-wt"))
+        );
+        assert!(!draft.worktree_enabled, "defaults to running in place");
+    }
+
+    #[test]
+    fn other_directory_clears_both_picker_steps() {
+        // #96 rule 3.
+        let mut draft = DraftPane::default();
+        draft.set_projects(
+            vec![
+                repo_project("main", "/repos/main", "/repos/main", 2, None),
+                linked_worktree("wt-91", "/repos/wt91", "/repos/main", 1),
+            ],
+            Utc::now(),
+        );
+        draft.focused_field = DraftField::DirPicker;
+        draft.on_input(&InputKey::Enter); // picks "main", reveals step two
+        assert!(draft.selected_group_key.is_some());
+
+        draft.focused_field = DraftField::DirPicker;
+        draft.move_selection(1); // onto Other directory…
+        draft.on_input(&InputKey::Enter);
+
+        assert!(draft.cwd_raw_visible);
+        assert!(
+            draft.selected_group_key.is_none(),
+            "step one's pick is cleared"
+        );
+        assert!(
+            draft.worktree_choice_rows().is_empty(),
+            "step two is cleared too"
+        );
+    }
+
     #[test]
     fn raw_path_targets_probe_gitroot_and_resolution_feeds_the_spec() {
         let mut draft = DraftPane {
@@ -1698,13 +2309,18 @@ mod tests {
         draft.on_input(&InputKey::Enter); // no projects → Other directory…
         typed(&mut draft, "/opt/tool");
 
-        let (seq, path) = draft.take_gitroot_probe().expect("probe requested");
+        let (seq, path) = draft
+            .take_gitroot_probe(probe_due())
+            .expect("probe requested");
         assert_eq!(path, PathBuf::from("/opt/tool"));
-        assert!(draft.take_gitroot_probe().is_none(), "one probe at a time");
+        assert!(
+            draft.take_gitroot_probe(probe_due()).is_none(),
+            "one probe at a time"
+        );
 
         // Further typing supersedes the in-flight probe…
         typed(&mut draft, "-x");
-        let (seq2, _) = draft.take_gitroot_probe().unwrap();
+        let (seq2, _) = draft.take_gitroot_probe(probe_due()).unwrap();
         assert_ne!(seq2, seq);
         // …so a late answer to the old one must be ignored.
         draft.resolve_gitroot(seq, Some(PathBuf::from("/somewhere/else")));
@@ -1725,7 +2341,7 @@ mod tests {
         };
         draft.on_input(&InputKey::Enter);
         typed(&mut draft, "/not/a/repo");
-        let (seq, _) = draft.take_gitroot_probe().unwrap();
+        let (seq, _) = draft.take_gitroot_probe(probe_due()).unwrap();
 
         draft.resolve_gitroot(seq, None);
         assert!(!draft.worktree_enabled);
@@ -1821,7 +2437,10 @@ mod tests {
 
     #[test]
     fn held_branches_render_unavailable_with_their_holder_as_the_reason() {
-        let mut draft = DraftPane::default();
+        let mut draft = DraftPane {
+            advanced_collapsed: false,
+            ..DraftPane::default()
+        };
         draft.set_projects(
             vec![repo_project(
                 "maestro",
@@ -1869,6 +2488,61 @@ mod tests {
         );
     }
 
+    #[test]
+    fn a_keystroke_burst_schedules_one_debounced_gitroot_probe() {
+        let mut draft = DraftPane {
+            focused_field: DraftField::DirPicker,
+            ..DraftPane::default()
+        };
+        draft.on_input(&InputKey::Enter); // no projects → Other directory…
+
+        // Burst: every keystroke reschedules; nothing may fire inside the
+        // debounce window (#74).
+        for c in "/opt/tooling".chars() {
+            draft.on_input(&InputKey::char(c));
+            assert!(
+                draft.take_gitroot_probe(Instant::now()).is_none(),
+                "no probe while typing is still in flight"
+            );
+        }
+
+        // Once the quiet period passes, exactly one probe fires.
+        let (seq, path) = draft
+            .take_gitroot_probe(probe_due())
+            .expect("probe due after the quiet period");
+        assert_eq!(path, PathBuf::from("/opt/tooling"));
+        assert!(
+            draft.take_gitroot_probe(probe_due()).is_none(),
+            "one probe total"
+        );
+
+        // The answer still lands through the unchanged seq guard.
+        draft.resolve_gitroot(seq, Some(PathBuf::from("/opt/tooling")));
+        assert_eq!(draft.base_repo.as_deref(), Some(Path::new("/opt/tooling")));
+    }
+
+    #[test]
+    fn a_stale_probe_answer_cannot_overwrite_a_newer_target_after_the_debounce() {
+        let mut draft = DraftPane {
+            focused_field: DraftField::DirPicker,
+            ..DraftPane::default()
+        };
+        draft.on_input(&InputKey::Enter); // Other directory…
+
+        typed(&mut draft, "/repo/old");
+        let (old_seq, _) = draft.take_gitroot_probe(probe_due()).unwrap();
+
+        // Retyping supersedes the in-flight probe and gets a newer seq…
+        typed(&mut draft, "/repo/new");
+        let (new_seq, _) = draft.take_gitroot_probe(probe_due()).unwrap();
+        assert_ne!(new_seq, old_seq);
+
+        // …so the late answer to the old target must be ignored.
+        draft.resolve_gitroot(new_seq, Some(PathBuf::from("/repo/new")));
+        draft.resolve_gitroot(old_seq, Some(PathBuf::from("/repo/old")));
+        assert_eq!(draft.base_repo.as_deref(), Some(Path::new("/repo/new")));
+    }
+
     #[test]
     fn toggling_worktree_off_spawns_in_the_checkout_itself() {
         let mut draft = DraftPane::default();
@@ -1894,7 +2568,7 @@ mod tests {
         draft.on_input(&InputKey::Enter);
         assert!(draft.worktree_enabled);
         assert!(
-            draft.take_gitroot_probe().is_none(),
+            draft.take_gitroot_probe(probe_due()).is_none(),
             "re-enabling reuses the known repo for an unchanged target"
         );
     }
@@ -1937,10 +2611,50 @@ mod tests {
         );
     }
 
+    #[test]
+    fn render_shows_step_two_wording_full_paths_and_newest_first_order() {
+        let mut draft = DraftPane {
+            home_dir: "/home/u".into(),
+            ..DraftPane::default()
+        };
+        draft.set_projects(
+            vec![
+                repo_project("main", "/home/u/repos/main", "/home/u/repos/main", 5, None),
+                linked_worktree("older-wt", "/home/u/repos/older", "/home/u/repos/main", 3),
+                linked_worktree("newer-wt", "/home/u/repos/newer", "/home/u/repos/main", 1),
+            ],
+            Utc::now(),
+        );
+        draft.focused_field = DraftField::DirPicker;
+        draft.on_input(&InputKey::Enter); // picks the "main" box
+        let rendered = render_to_string(100, 24, |f| draft.render(f, f.area(), true));
+
+        assert!(
+            rendered.contains("/home/u/repos/main"),
+            "step one shows the full repository path:\n{rendered}"
+        );
+        assert!(
+            rendered.contains("+ new"),
+            "step two's create choice:\n{rendered}"
+        );
+        assert!(
+            rendered.contains("/home/u/repos/newer"),
+            "step two shows worktrees' full paths:\n{rendered}"
+        );
+        let new_pos = rendered.find("+ new").unwrap();
+        let newer_pos = rendered.find("newer-wt").unwrap();
+        let older_pos = rendered.find("older-wt").unwrap();
+        assert!(
+            new_pos < newer_pos && newer_pos < older_pos,
+            "\"+ new\" first, then worktrees newest-first:\n{rendered}"
+        );
+    }
+
     #[test]
     fn render_shows_the_worktree_section() {
         let mut draft = DraftPane {
             home_dir: "/home/u".into(),
+            advanced_collapsed: false,
             ..DraftPane::default()
         };
         draft.set_projects(
@@ -1965,10 +2679,25 @@ mod tests {
         draft.base_repo = Some(PathBuf::from("/home/u/tea/maestro"));
         draft.probed_cwd = Some(PathBuf::from("/home/u/tea/maestro"));
         let rendered = render_to_string(100, 24, |f| draft.render(f, f.area(), true));
-        for s in ["[new] [existing]", "br:", "crimson-otter"] {
+        for s in ["[new] [existing]", "new:", "crimson-otter"] {
             assert!(rendered.contains(s), "missing {s:?}:\n{rendered}");
         }
 
+        // The new-branch input and existing-branch picker must not share a
+        // label — matching the web form's "New branch name" / "Pick a
+        // branch" (#94).
+        draft.set_branch_mode(WorktreeBranchMode::Existing);
+        let rendered = render_to_string(100, 24, |f| draft.render(f, f.area(), true));
+        assert!(
+            rendered.contains("pick:"),
+            "missing pick: label:\n{rendered}"
+        );
+        assert!(
+            !rendered.contains("br:"),
+            "stale ambiguous label:\n{rendered}"
+        );
+        draft.set_branch_mode(WorktreeBranchMode::New);
+
         draft.focused_field = DraftField::WorktreeToggle;
         draft.on_input(&InputKey::Enter);
         let rendered = render_to_string(100, 24, |f| draft.render(f, f.area(), true));
@@ -1979,6 +2708,85 @@ mod tests {
         );
     }
 
+    #[test]
+    fn advanced_section_is_collapsed_by_default_and_states_the_worktree_default() {
+        let mut draft = DraftPane {
+            home_dir: "/home/u".into(),
+            ..DraftPane::default()
+        };
+        draft.set_projects(
+            vec![project("maestro", "/home/u/tea/maestro", 1, Some("claude"))],
+            Utc::now(),
+        );
+        assert!(draft.advanced_collapsed, "closed by default");
+        assert_eq!(
+            draft
+                .field_order()
+                .iter()
+                .filter(|f| matches!(f, DraftField::WorktreeToggle | DraftField::BranchMode))
+                .count(),
+            0,
+            "collapsed fields drop out of tab order"
+        );
+
+        let rendered = render_to_string(100, 24, |f| draft.render(f, f.area(), true));
+        assert!(
+            rendered.contains("Advanced options") && rendered.contains("creates a worktree"),
+            "header states the on-by-default worktree:\n{rendered}"
+        );
+        assert!(
+            !rendered.contains("[x] worktree"),
+            "checkbox stays hidden while collapsed:\n{rendered}"
+        );
+    }
+
+    #[test]
+    fn advanced_header_states_no_worktree_for_a_worktree_row_91() {
+        let mut draft = DraftPane::default();
+        let mut wt = repo_project("wt-91", "/repos/wt91", "/repos/main", 1, None);
+        wt.is_worktree = true;
+        draft.set_projects(vec![wt], Utc::now());
+        draft.focused_field = DraftField::DirPicker;
+        draft.on_input(&InputKey::Enter);
+
+        assert!(!draft.worktree_enabled);
+        assert!(
+            draft.advanced_collapsed,
+            "picking a row must not force it open"
+        );
+        let rendered = render_to_string(100, 24, |f| draft.render(f, f.area(), true));
+        assert!(
+            rendered.contains("no worktree"),
+            "header reflects #91's off default:\n{rendered}"
+        );
+    }
+
+    #[test]
+    fn enter_on_the_advanced_header_expands_it_without_moving_fields_above() {
+        let mut draft = DraftPane {
+            home_dir: "/home/u".into(),
+            focused_field: DraftField::Advanced,
+            ..DraftPane::default()
+        };
+        draft.set_projects(
+            vec![project("maestro", "/home/u/tea/maestro", 1, Some("claude"))],
+            Utc::now(),
+        );
+        let before = render_to_string(100, 24, |f| draft.render(f, f.area(), true));
+        let before_head: Vec<&str> = before.lines().take(6).collect();
+
+        draft.on_input(&InputKey::Enter);
+        assert!(!draft.advanced_collapsed);
+
+        let after = render_to_string(100, 24, |f| draft.render(f, f.area(), true));
+        let after_head: Vec<&str> = after.lines().take(6).collect();
+        assert_eq!(
+            before_head, after_head,
+            "expanding must not move the fields above the disclosure"
+        );
+        assert!(after.contains("[x] worktree"), "body now visible:\n{after}");
+    }
+
     #[test]
     fn abbreviate_path_matches_the_web_helpers() {
         assert_eq!(
diff --git a/crates/maestro-tui/src/input.rs b/crates/maestro-tui/src/input.rs
index 34c4d4a..137458f 100644
--- a/crates/maestro-tui/src/input.rs
+++ b/crates/maestro-tui/src/input.rs
@@ -117,7 +117,9 @@ impl InputKey {
                 if *alt {
                     out.push_str("alt-");
                 }
-                if *shift {
+                // Uppercase already implies shift; crossterm sets the flag
+                // on every such char, so skip the redundant prefix (#70).
+                if *shift && !c.is_uppercase() {
                     out.push_str("shift-");
                 }
                 out.push(*c);
@@ -580,12 +582,28 @@ mod tests {
 
     #[test]
     fn canonical_round_trips_simple_chars() {
-        for s in ["a", "ctrl-a", "ctrl-w", "alt-x", "shift-A"] {
+        for s in ["a", "ctrl-a", "ctrl-w", "alt-x"] {
             let k = InputKey::parse(s).unwrap();
             assert_eq!(k.canonical(), s, "round-trip {s:?}");
         }
     }
 
+    /// crossterm 0.28 attaches `KeyModifiers::SHIFT` to any uppercase char,
+    /// so a real Shift+S delivers `Char { c: 'S', shift: true }`. Its
+    /// canonical form must be the bare `"S"` a keymap binds, not `"shift-S"` —
+    /// the uppercase letter already says "shifted"; a redundant prefix would
+    /// make the default `S` binding unreachable from the keyboard (#70).
+    #[test]
+    fn shift_flag_is_redundant_for_an_already_uppercase_char() {
+        let k = InputKey::Char {
+            c: 'S',
+            ctrl: false,
+            alt: false,
+            shift: true,
+        };
+        assert_eq!(k.canonical(), "S");
+    }
+
     #[test]
     fn canonical_round_trips_specials() {
         for s in [
diff --git a/flake.nix b/flake.nix
index 5f11588..61ff9da 100644
--- a/flake.nix
+++ b/flake.nix
@@ -125,7 +125,7 @@
             pnpmDeps = (pkgs.fetchPnpmDeps.override { pnpm = pkgs.pnpm_10; }) {
               inherit (finalAttrs) pname version src;
               fetcherVersion = 3;
-              hash = "sha256-Lhi41AtCK69SM4+7zih19+Njf7o2hyXrAV0W6VO9YxU=";
+              hash = "sha256-D9JdgI92vzAY8en2zGEEPd4hwOLVi3sr1joT4b17Be4=";
             };
 
             buildPhase = ''
diff --git a/web/src/multiview.test.ts b/web/src/multiview.test.ts
index 8067d5e..a08bf79 100644
--- a/web/src/multiview.test.ts
+++ b/web/src/multiview.test.ts
@@ -147,6 +147,48 @@ describe("multiview openDraft (#62)", () => {
     expect((mv.el.querySelector(".mv-draft input[name=name]") as HTMLInputElement).value).toBe("wip");
   });
 
+  it("reuses an already-synced empty pane instead of splitting (#72)", async () => {
+    const layout = emptyLayout();
+    const tab = layout.tabs[0];
+    const first = splitLeaf(tab, "", "s1", "row", true);
+    const empty = splitLeaf(tab, first, null, "row", true);
+    tab.focusedLeafId = empty;
+    const mv = makeMv(layout);
+    document.body.appendChild(mv.el);
+    mv.render();
+    // Let the mounted form's loadProjects() settle and auto-sync its picked
+    // defaults into leaf.draft before openDraft runs (#72's dead-branch window).
+    await flush();
+    expect(leaves(tab.root).find((l) => l.id === empty)?.draft).not.toBeNull();
+
+    mv.openDraft();
+    await flush();
+
+    expect(leaves(tab.root)).toHaveLength(2);
+    expect(tab.focusedLeafId).toBe(empty);
+  });
+
+  it("keeps a seed after reusing an already-synced empty pane (#72)", async () => {
+    const layout = emptyLayout();
+    const tab = layout.tabs[0];
+    const first = splitLeaf(tab, "", "s1", "row", true);
+    const empty = splitLeaf(tab, first, null, "row", true);
+    tab.focusedLeafId = empty;
+    const mv = makeMv(layout);
+    document.body.appendChild(mv.el);
+    mv.render();
+    await flush();
+
+    mv.openDraft({ cwd: "/home/user/proj", command: "claude" });
+    await flush();
+
+    const leaf = leaves(tab.root).find((l) => l.id === empty)!;
+    expect(leaf.draft?.cwd).toBe("/home/user/proj");
+    expect(leaf.draft?.command).toBe("claude");
+    const cwdRaw = mv.el.querySelector(".mv-draft .cwd-raw") as HTMLInputElement;
+    expect(cwdRaw.value).toBe("/home/user/proj");
+  });
+
   it("seeds a clone's cwd and command into the draft", async () => {
     const layout = emptyLayout();
     const mv = makeMv(layout);
@@ -160,3 +202,83 @@ describe("multiview openDraft (#62)", () => {
     expect(leaf.draft?.command).toBe("claude");
   });
 });
+
+describe("multiview pane-drag swap (#73)", () => {
+  beforeEach(() => {
+    stubFetch();
+    document.body.replaceChildren();
+  });
+
+  afterEach(() => {
+    vi.unstubAllGlobals();
+    vi.restoreAllMocks();
+  });
+
+  /** Drag `sourcePane`'s title onto `targetPane`'s center, as the real pane
+   *  drag handler does — modelled after the pointer sequence in runDrag()/
+   *  updateDock() in multiview.ts, since neither is exposed on MultiView. */
+  async function dragPaneOntoCenter(sourcePane: HTMLElement, targetPane: HTMLElement): Promise<void> {
+    // The real drag-start gate requires the pointerdown target to sit inside
+    // an `.attach-header` (attach.ts's session title bar). Draft panes mount
+    // no such element, so stand one in for the gate check itself.
+    const marker = document.createElement("div");
+    marker.className = "attach-header";
+    sourcePane.appendChild(marker);
+
+    vi.spyOn(targetPane, "getBoundingClientRect").mockReturnValue({
+      left: 100,
+      top: 0,
+      width: 100,
+      height: 100,
+      right: 200,
+      bottom: 100,
+      x: 100,
+      y: 0,
+      toJSON() {},
+    } as DOMRect);
+    (document as unknown as { elementsFromPoint: (x: number, y: number) => Element[] }).elementsFromPoint = () => [
+      targetPane,
+    ];
+
+    marker.dispatchEvent(
+      new PointerEvent("pointerdown", { clientX: 0, clientY: 0, bubbles: true, cancelable: true }),
+    );
+    window.dispatchEvent(
+      new PointerEvent("pointermove", { clientX: 150, clientY: 50, bubbles: true, cancelable: true }),
+    );
+    window.dispatchEvent(new PointerEvent("pointerup", { clientX: 150, clientY: 50, bubbles: true, cancelable: true }));
+    await flush();
+  }
+
+  it("moves each draft's form along with its data when two draft panes are swapped", async () => {
+    const layout = emptyLayout();
+    const tab = layout.tabs[0];
+    const leaf1 = splitLeaf(tab, "", null, "row", true);
+    const leaf2 = splitLeaf(tab, leaf1, null, "row", true);
+    const mv = makeMv(layout);
+    document.body.appendChild(mv.el);
+    mv.render();
+    await flush();
+
+    const paneOf = (leafId: string) => mv.el.querySelector(`[data-leaf-id="${leafId}"]`) as HTMLElement;
+    const nameInputOf = (leafId: string) => paneOf(leafId).querySelector("input[name=name]") as HTMLInputElement;
+
+    nameInputOf(leaf1).value = "west";
+    nameInputOf(leaf1).dispatchEvent(new Event("input"));
+    nameInputOf(leaf2).value = "east";
+    nameInputOf(leaf2).dispatchEvent(new Event("input"));
+    await flush();
+    expect(leaves(tab.root).find((l) => l.id === leaf1)?.draft?.name).toBe("west");
+    expect(leaves(tab.root).find((l) => l.id === leaf2)?.draft?.name).toBe("east");
+
+    await dragPaneOntoCenter(paneOf(leaf1), paneOf(leaf2));
+
+    // The leaf data swaps (already correct pre-fix)...
+    expect(leaves(tab.root).find((l) => l.id === leaf1)?.draft?.name).toBe("east");
+    expect(leaves(tab.root).find((l) => l.id === leaf2)?.draft?.name).toBe("west");
+    // ...and the mounted forms must follow, not stay behind showing the old
+    // pane's values (#73).
+    expect(nameInputOf(leaf1).value).toBe("east");
+    expect(nameInputOf(leaf2).value).toBe("west");
+  });
+});
diff --git a/web/src/multiview.ts b/web/src/multiview.ts
index b837c6e..3ea9a94 100644
--- a/web/src/multiview.ts
+++ b/web/src/multiview.ts
@@ -423,9 +423,15 @@ export function createMultiView(opts: MultiViewOptions): MultiView {
       return;
     }
     const target = findLeaf(tab.root, tab.focusedLeafId)!;
-    if (!target.sessionId && !target.draft) {
-      // An already-empty pane becomes the draft in place.
+    if (!target.sessionId) {
+      // Empty = no session, not `!draft` (#72): the mounted form auto-syncs
+      // picked defaults into `draft` once ready, so that's never reliably null.
       target.draft = draft();
+      const stale = draftForms.get(target.id);
+      if (stale) {
+        stale.destroy();
+        draftForms.delete(target.id);
+      }
     } else {
       // Split a fresh draft beside the focused pane.
       tab.focusedLeafId = splitLeaf(tab, target.id, null, "row", true);
@@ -695,6 +701,16 @@ export function createMultiView(opts: MultiViewOptions): MultiView {
         const dragged = findLeaf(tab.root, self)!;
         [dragged.sessionId, target.sessionId] = [target.sessionId, dragged.sessionId];
         [dragged.draft, target.draft] = [target.draft, dragged.draft];
+        // The leaf data moved but each pane's mounted form is still keyed to
+        // its old leaf (#73) — tear both down like openDraft's reuse case
+        // (#72) so render() remounts fresh forms seeded from the swapped data.
+        for (const id of [dragged.id, target.id]) {
+          const stale = draftForms.get(id);
+          if (stale) {
+            stale.destroy();
+            draftForms.delete(id);
+          }
+        }
         tab.focusedLeafId = target.id;
       } else if (sessionId) {
         const loc = locateSession(layout, sessionId);
diff --git a/web/src/projectPicker.test.ts b/web/src/projectPicker.test.ts
index ba6b821..6932566 100644
--- a/web/src/projectPicker.test.ts
+++ b/web/src/projectPicker.test.ts
@@ -34,13 +34,13 @@ function stubFetch(info: unknown, projects: Project[]): void {
   );
 }
 
-function rowPaths(form: HTMLFormElement): string[] {
-  return [...form.querySelectorAll<HTMLButtonElement>(".project-row:not(.project-other)")].map(
-    (r) => r.dataset.cwd ?? "",
+function boxPaths(form: HTMLFormElement): string[] {
+  return [...form.querySelectorAll<HTMLButtonElement>(".project-box")].map(
+    (b) => b.dataset.cwd ?? "",
   );
 }
 
-describe("spawnForm project picker", () => {
+describe("spawnForm project picker (#95: boxes, full paths, mains only)", () => {
   let handle: SpawnFormHandle | null = null;
 
   beforeEach(() => {
@@ -65,7 +65,7 @@ describe("spawnForm project picker", () => {
     return handle;
   }
 
-  it("renders one row per project, fresh before stale", async () => {
+  it("renders one box per project, fresh before stale", async () => {
     const fresh = project({ name: "fresh", path: "/home/user/fresh", last_activity: NOW });
     const stale = project({
       name: "stale",
@@ -73,40 +73,56 @@ describe("spawnForm project picker", () => {
       last_activity: "2026-01-01T00:00:00Z",
     });
     const form = (await mount([stale, fresh])).el;
-    expect(rowPaths(form)).toEqual(["/home/user/fresh", "/home/user/stale"]);
-    const rows = [...form.querySelectorAll<HTMLButtonElement>(".project-row")];
-    expect(rows[1].classList.contains("is-stale")).toBe(true);
-    expect(rows[0].classList.contains("is-stale")).toBe(false);
+    expect(boxPaths(form)).toEqual(["/home/user/fresh", "/home/user/stale"]);
+    const boxes = [...form.querySelectorAll<HTMLButtonElement>(".project-box")];
+    expect(boxes[1].classList.contains("is-stale")).toBe(true);
+    expect(boxes[0].classList.contains("is-stale")).toBe(false);
   });
 
-  it("nests worktrees under their base repository", async () => {
+  it("shows the name as the primary line and the full path unabbreviated", async () => {
+    const p = project({ name: "nixos-config", path: "/home/user/tea/nixos-config" });
+    const form = (await mount([p])).el;
+    const box = form.querySelector<HTMLButtonElement>(".project-box")!;
+    expect(box.querySelector(".project-name")!.textContent).toBe("nixos-config");
+    // Not `~/t/nixos-config`: the abbreviation hid what distinguishes two
+    // projects sharing a basename (#95).
+    expect(box.querySelector(".project-path")!.textContent).toBe("/home/user/tea/nixos-config");
+  });
+
+  it("lists only main checkouts as boxes — worktrees belong to step two", async () => {
     const main = project({ name: "maestro", path: "/home/user/maestro" });
     const wt = project({
       name: "wt",
-      path: "/elsewhere/wt",
+      path: "/home/user/maestro/worktrees/wt",
       is_worktree: true,
       base_repo: main.path,
     });
     const form = (await mount([wt, main])).el;
-    expect(rowPaths(form)).toEqual(["/home/user/maestro", "/elsewhere/wt"]);
-    const [mainRow, wtRow] = [
-      ...form.querySelectorAll(".project-row:not(.project-other)"),
-    ];
-    expect(wtRow.classList.contains("is-worktree")).toBe(true);
-    expect(mainRow.classList.contains("is-worktree")).toBe(false);
+    expect(boxPaths(form)).toEqual(["/home/user/maestro"]);
+    expect(form.querySelector(".project-box.is-worktree")).toBeNull();
   });
 
-  it("filters rows as the operator types", async () => {
+  it("filters boxes as the operator types, keeping a repo its worktree matched", async () => {
     const a = project({ name: "maestro", path: "/home/user/maestro" });
     const b = project({ name: "tea", path: "/home/user/work/tea" });
-    const form = (await mount([a, b])).el;
+    const wt = project({
+      name: "bulgarians",
+      path: "/home/user/maestro/worktrees/bulgarians",
+      is_worktree: true,
+      base_repo: a.path,
+    });
+    const form = (await mount([a, b, wt])).el;
     const filter = form.querySelector<HTMLInputElement>(".project-filter")!;
     filter.value = "tea";
     filter.dispatchEvent(new Event("input"));
-    expect(rowPaths(form)).toEqual(["/home/user/work/tea"]);
+    expect(boxPaths(form)).toEqual(["/home/user/work/tea"]);
+    // A query that only matches a worktree still surfaces its repository box.
+    filter.value = "bulgarians";
+    filter.dispatchEvent(new Event("input"));
+    expect(boxPaths(form)).toEqual(["/home/user/maestro"]);
     filter.value = "zzz";
     filter.dispatchEvent(new Event("input"));
-    expect(rowPaths(form)).toEqual([]);
+    expect(boxPaths(form)).toEqual([]);
     expect(form.querySelector(".picker-empty")).toBeTruthy();
   });
 
@@ -135,17 +151,17 @@ describe("spawnForm project picker", () => {
     for (let i = 0; i < 20; i++) await Promise.resolve();
     onChange.mockClear();
 
-    const row = form.querySelector<HTMLButtonElement>(".project-row")!;
-    row.click();
+    const box = form.querySelector<HTMLButtonElement>(".project-box")!;
+    box.click();
 
     const values = form.querySelector<HTMLInputElement>("input[name=name]")!.value;
     const last = onChange.mock.lastCall![0];
     expect(last.cwd).toBe("/home/user/maestro");
     expect(last.command).toBe("claude");
     expect(values).toBeTruthy();
-    // The raw input stays hidden — the picked row is the source of truth.
+    // The raw input stays hidden — the picked box is the source of truth.
     expect((form.querySelector(".cwd-raw-wrap") as HTMLElement).hidden).toBe(true);
-    expect(row.classList.contains("is-active")).toBe(true);
+    expect(box.classList.contains("is-active")).toBe(true);
   });
 
   it("keeps an 'Other directory…' escape hatch that reveals the raw input", async () => {
diff --git a/web/src/spawnForm.ts b/web/src/spawnForm.ts
index 194d71c..55a11de 100644
--- a/web/src/spawnForm.ts
+++ b/web/src/spawnForm.ts
@@ -9,8 +9,8 @@ import {
 } from "./api.js";
 import { attachDirAutocomplete } from "./dirAutocomplete.js";
 import { filterProjects, groupProjects, isStale, sortProjects } from "./projectList.js";
+import type { ProjectGroup } from "./projectList.js";
 import type { BranchInfo, CreateSessionRequest, Project, Session, SpawnPreset } from "./types.js";
-import { abbreviateCwd, abbreviateFolderName } from "./types.js";
 
 /** Where a worktree's branch comes from: freshly created (default) or picked
  * from the repository's existing branches (#61). */
@@ -94,6 +94,11 @@ export const FALLBACK_PRESETS: SpawnPreset[] = [
   { id: "custom", label: "Custom…", command: "" },
 ];
 
+/** Quiet period after raw-path typing before `/api/gitroot` fires (#74).
+ * Must stay equal to `GITROOT_PROBE_DEBOUNCE_MS` in
+ * crates/maestro-tui/src/draft.rs so both clients debounce alike. */
+const GITROOT_PROBE_DEBOUNCE_MS = 250;
+
 export interface SpawnFormHandle {
   el: HTMLFormElement;
   /** Remove global listeners (dir autocomplete) — call when unmounting. */
@@ -125,15 +130,20 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
              placeholder="bash -l" autocomplete="off" />
     </div>
     <div class="field">
-      <span class="field-label">Working directory</span>
+      <span class="field-label">Project</span>
       <input class="raw-input project-filter" type="text" placeholder="Filter projects…"
              autocomplete="off" />
       <div class="picker projects"></div>
+      <button type="button" class="project-other">Other directory…</button>
       <div class="raw-wrap cwd-raw-wrap" hidden>
         <input class="raw-input cwd-raw" name="cwd_raw" type="text"
                placeholder="/home/user/project" inputmode="text" autocomplete="off" />
       </div>
     </div>
+    <div class="field wt-step" hidden>
+      <span class="field-label">Worktree</span>
+      <div class="picker wt-choices"></div>
+    </div>
     <div class="field">
       <span class="field-label">Name</span>
       <div class="name-row">
@@ -142,33 +152,38 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
       </div>
     </div>
     <fieldset class="worktree">
-      <legend>
+      <button type="button" class="tree-folder-header wt-toggle" aria-expanded="false">
+        <span class="chevron">▾</span>
+        <span class="folder-name">Advanced options</span>
+        <span class="wt-summary"></span>
+      </button>
+      <div class="wt-collapsible" hidden>
         <label class="row-inline">
           <input type="checkbox" name="worktree_enabled" />
           Create git worktree
         </label>
-      </legend>
-      <p class="wt-hint" hidden></p>
-      <div class="wt-body" hidden>
-        <p class="wt-repo"></p>
-        <div class="wt-mode" role="radiogroup" aria-label="Branch source">
-          <label class="row-inline">
-            <input type="radio" name="worktree_branch_mode" value="new" />
-            New branch
+        <p class="wt-hint" hidden></p>
+        <div class="wt-body" hidden>
+          <p class="wt-repo"></p>
+          <div class="wt-mode" role="radiogroup" aria-label="Branch source">
+            <label class="row-inline">
+              <input type="radio" name="worktree_branch_mode" value="new" />
+              New branch
+            </label>
+            <label class="row-inline">
+              <input type="radio" name="worktree_branch_mode" value="existing" />
+              Existing branch
+            </label>
+          </div>
+          <label class="wt-new-wrap">
+            New branch name
+            <input name="worktree_branch" type="text" placeholder="feat/foo" autocomplete="off" />
           </label>
-          <label class="row-inline">
-            <input type="radio" name="worktree_branch_mode" value="existing" />
-            Existing branch
+          <label class="wt-exist-wrap" hidden>
+            Pick a branch
+            <select class="branch-select"></select>
           </label>
         </div>
-        <label class="wt-new-wrap">
-          Branch
-          <input name="worktree_branch" type="text" placeholder="feat/foo" autocomplete="off" />
-        </label>
-        <label class="wt-exist-wrap" hidden>
-          Branch
-          <select class="branch-select"></select>
-        </label>
       </div>
     </fieldset>
     <p class="form-error" role="alert" aria-live="polite"></p>
@@ -182,11 +197,17 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
   const errEl = form.querySelector(".form-error") as HTMLElement;
   const cmdTiles = form.querySelector(".cmd-tiles") as HTMLElement;
   const cmdRaw = form.querySelector(".cmd-raw") as HTMLInputElement;
-  const recentsEl = form.querySelector(".projects") as HTMLElement;
+  const projectsEl = form.querySelector(".projects") as HTMLElement;
   const filterInput = form.querySelector(".project-filter") as HTMLInputElement;
+  const otherBtn = form.querySelector(".project-other") as HTMLButtonElement;
+  const wtStep = form.querySelector(".wt-step") as HTMLElement;
+  const wtChoices = form.querySelector(".wt-choices") as HTMLElement;
   const cwdRawWrap = form.querySelector(".cwd-raw-wrap") as HTMLElement;
   const cwdRaw = form.querySelector(".cwd-raw") as HTMLInputElement;
   const wtEnabled = form.querySelector("input[name=worktree_enabled]") as HTMLInputElement;
+  const wtToggle = form.querySelector(".wt-toggle") as HTMLButtonElement;
+  const wtCollapsible = form.querySelector(".wt-collapsible") as HTMLElement;
+  const wtSummary = form.querySelector(".wt-summary") as HTMLElement;
   const wtHint = form.querySelector(".wt-hint") as HTMLElement;
   const wtBody = form.querySelector(".wt-body") as HTMLElement;
   const wtRepo = form.querySelector(".wt-repo") as HTMLElement;
@@ -337,6 +358,15 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
     emit();
   }
 
+  /** Re-highlight the operator's already-picked tile after `renderCommandTiles`
+   * rebuilds the row from scratch (new tiles carry no `is-active` class) —
+   * without touching `command`, since that was already settled. */
+  function reapplyActiveTile(): void {
+    for (const tile of cmdTiles.querySelectorAll(".tile")) {
+      tile.classList.toggle("is-active", (tile as HTMLElement).dataset.id === selectedPresetId);
+    }
+  }
+
   function renderCommandTiles(): void {
     cmdTiles.replaceChildren();
     for (const p of presets) {
@@ -345,13 +375,23 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
       tile.className = "tile";
       tile.dataset.id = p.id;
       tile.innerHTML = `<span class="tile-label">${escapeHtml(p.label)}</span>`;
-      tile.addEventListener("click", () => selectPreset(p.id));
+      tile.addEventListener("click", () => {
+        commandTouched = true;
+        selectPreset(p.id);
+      });
       cmdTiles.appendChild(tile);
     }
   }
 
+  // Set once the operator picks a tile or types a custom command — guards
+  // `applyInitialCommand()` the same way `nameTouched` guards a late name
+  // batch: a late `/api/info` resolution must never overwrite a field the
+  // operator has already touched (#76).
+  let commandTouched = false;
+
   cmdRaw.addEventListener("input", () => {
     if (selectedPresetId === "custom" || presets.find((p) => p.id === selectedPresetId)?.command === "") {
+      commandTouched = true;
       command = cmdRaw.value.trim();
       emit();
     }
@@ -367,7 +407,11 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
       if (info.presets?.length) {
         presets = info.presets;
         renderCommandTiles();
-        applyInitialCommand();
+        if (commandTouched) {
+          reapplyActiveTile();
+        } else {
+          applyInitialCommand();
+        }
       }
     })
     .catch(() => {
@@ -394,12 +438,36 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
     if (first) selectPreset(first.id, false);
   }
 
-  // ---- working-directory picker ---------------------------------------
+  // ---- working-directory picker (#95) ----------------------------------
+  // Two steps, and the TUI mirror (#96) must match these rules verbatim:
+  //  1. Step one is one box per repository (name, then full path). A worktree
+  //     is a box only when its main checkout is missing from the scan.
+  //  2. The filter keeps a repository when the query matches it or any of its
+  //     worktrees, so a worktree name still finds its box.
+  //  3. Picking a box reveals step two: "+ new", then that repository's
+  //     worktrees newest-first. "Other directory…" clears both steps.
+  //  4. "+ new" is the default selection — except on a box that is itself a
+  //     linked worktree, which defaults to that worktree.
+  //  5. "+ new" means create: cwd is the repository, create-worktree on.
+  //     An existing worktree means run in it: cwd is that worktree,
+  //     create-worktree OFF. The daemon never adopts (docs/WORKTREES.md), so
+  //     these are separate acts — #91's rule, now an explicit choice.
+  //  6. Neither step probes /api/gitroot; the scan already reports repository
+  //     membership. Only the free-text hatch pays for a probe.
+
+  /** "new" (create a worktree) or the path of an existing worktree to run in. */
+  type WorktreeChoice = "new" | string;
+
+  let discovered: Project[] = []; // daemon snapshot, daemon-sorted
+  let groups: ProjectGroup[] = []; // rebuilt on every render
+  let selectedGroup: ProjectGroup | null = null;
+  let worktreeChoice: WorktreeChoice = "new";
+
   function showRawCwd(prefillValue?: string, focus = true): void {
     cwdRawWrap.hidden = false;
     if (prefillValue != null) cwd = prefillValue;
     cwdRaw.value = cwd;
-    markActiveProject(null);
+    clearProjectSelection();
     if (focus) {
       cwdRaw.focus();
       cwdRaw.select();
@@ -413,55 +481,98 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
     cwd = cwdRaw.value.trim();
     branchCache = null;
     emit();
-    if (wtEnabled.checked) probeGitRoot();
+    if (wtEnabled.checked) scheduleGitRootProbe();
   });
 
-  function markActiveProject(activeCwd: string | null): void {
-    for (const row of recentsEl.querySelectorAll(".project-row")) {
-      row.classList.toggle(
-        "is-active",
-        (row as HTMLElement).dataset.cwd === activeCwd,
-      );
+  /** Every worktree of a group, including the group's own box when the scan
+   * found no main checkout to nest it under. */
+  function worktreesOf(group: ProjectGroup): Project[] {
+    return [group.main, ...group.worktrees].filter((p) => p.is_worktree);
+  }
+
+  function markActiveBox(): void {
+    const active = selectedGroup?.main.path ?? null;
+    for (const box of projectsEl.querySelectorAll(".project-box")) {
+      box.classList.toggle("is-active", (box as HTMLElement).dataset.cwd === active);
     }
   }
 
-  function selectProject(project: Project): void {
-    cwd = project.path;
+  function markActiveChoice(): void {
+    for (const btn of wtChoices.querySelectorAll(".wt-choice")) {
+      const el = btn as HTMLElement;
+      const value = el.dataset.kind === "new" ? "new" : (el.dataset.cwd ?? "");
+      el.classList.toggle("is-active", value === worktreeChoice);
+    }
+  }
+
+  function clearProjectSelection(): void {
+    selectedGroup = null;
+    worktreeChoice = "new";
+    wtChoices.replaceChildren();
+    wtStep.hidden = true;
+    markActiveBox();
+  }
+
+  function selectProject(group: ProjectGroup): void {
+    selectedGroup = group;
     cwdRawWrap.hidden = true;
-    markActiveProject(project.path);
-    // The scan already knows this directory is inside a repo (#61): the
-    // toggle defaults back on and no /api/gitroot round trip is needed.
-    wtEnabled.checked = true;
-    applyProjectRepo(project.base_repo ?? project.path);
+    renderWorktreeChoices(group);
+    markActiveBox();
+    // Rule 4: a box that is itself a linked worktree defaults to running there.
+    applyWorktreeChoice(group.main.is_worktree ? group.main.path : "new");
+  }
+
+  function applyWorktreeChoice(choice: WorktreeChoice): void {
+    const group = selectedGroup;
+    if (!group) return;
+    const target =
+      choice === "new" ? group.main : worktreesOf(group).find((p) => p.path === choice);
+    if (!target) return;
+    worktreeChoice = choice;
+    cwd = target.path;
+    branchCache = null;
+    markActiveChoice();
+    if (choice === "new") {
+      wtEnabled.checked = true;
+      updateWtSummary();
+      applyProjectRepo(group.main.base_repo ?? group.main.path);
+    } else {
+      wtEnabled.checked = false;
+      updateWtSummary();
+      inferredBaseRepo = null;
+      wtBody.hidden = true;
+      wtHint.hidden = true;
+    }
     emit();
-    // Picking a project pre-selects the command it was last used with.
-    const match = presets.find((p) => p.command === project.last_command && p.command !== "");
+    // The chosen directory pre-selects the command it was last used with.
+    const match = presets.find((p) => p.command === target.last_command && p.command !== "");
     if (match) selectPreset(match.id);
   }
 
-  let discovered: Project[] = []; // daemon snapshot, daemon-sorted
+  /** Groups with at least one member (itself or a worktree) matching `query`. */
+  function visibleGroups(query: string): ProjectGroup[] {
+    return groups.filter((g) => filterProjects([g.main, ...g.worktrees], query).length > 0);
+  }
 
   function renderProjects(): void {
-    recentsEl.replaceChildren();
-    const sorted = sortProjects(filterProjects(discovered, filterInput.value), new Date());
-    for (const group of groupProjects(sorted)) {
-      recentsEl.appendChild(projectRow(group.main));
-      for (const wt of group.worktrees) recentsEl.appendChild(projectRow(wt));
-    }
-    if (discovered.length > 0 && sorted.length === 0) {
+    projectsEl.replaceChildren();
+    groups = groupProjects(sortProjects(discovered, new Date()));
+    const visible = visibleGroups(filterInput.value);
+    for (const group of visible) projectsEl.appendChild(projectBox(group));
+    if (discovered.length > 0 && visible.length === 0) {
       const empty = document.createElement("p");
       empty.className = "picker-empty";
       empty.textContent = "No projects match.";
-      recentsEl.appendChild(empty);
+      projectsEl.appendChild(empty);
     }
-    recentsEl.appendChild(otherDirRow());
-    markActiveProject(cwdRawWrap.hidden ? cwd : null);
+    markActiveBox();
   }
 
   filterInput.addEventListener("input", renderProjects);
+  otherBtn.addEventListener("click", () => showRawCwd(cwd || homeDir));
 
   async function loadProjects(): Promise<void> {
-    recentsEl.replaceChildren(loadingRow());
+    projectsEl.replaceChildren(loadingRow());
     try {
       discovered = await fetchProjects();
     } catch {
@@ -472,12 +583,13 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
     if (seedCwd) {
       // A seed sets the directory verbatim, regardless of what the scan found.
       // `cwdRawVisible === false` marks a draft restore whose cwd came from a
-      // picked row: keep the picker and don't steal focus. Otherwise land
+      // picked box: keep the picker and don't steal focus. Otherwise land
       // focused in the raw input (clone / no-match flows).
       if (prefill.cwdRawVisible === false) {
         cwd = seedCwd;
         cwdRaw.value = seedCwd;
-        markActiveProject(cwd);
+        // Restoring must not touch the worktree toggle — the seed carries it.
+        if (!restoreSelection(seedCwd)) clearProjectSelection();
       } else {
         showRawCwd(seedCwd, false);
       }
@@ -494,34 +606,66 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
     emit();
   }
 
-  function projectRow(project: Project): HTMLElement {
-    const row = document.createElement("button");
-    row.type = "button";
-    row.className = `project-row${project.is_worktree ? " is-worktree" : ""}${
-      isStale(project, new Date()) ? " is-stale" : ""
-    }`;
-    row.dataset.cwd = project.path;
-    // Abbreviate exactly like the sidebar: home → `~`, then collapse leading
-    // segments to initials (`~/g/n/maestro`). The full path stays in the tooltip
-    // and `dataset.cwd` (what's actually submitted).
-    const display = abbreviateFolderName(abbreviateCwd(project.path, homeDir));
-    row.innerHTML = `
-      <span class="project-info">
-        <span class="project-name">${escapeHtml(project.name)}</span>
-        <span class="recent-dir" title="${escapeHtml(project.path)}">${display}</span>
-      </span>
-      <span class="recent-cmd">${escapeHtml(project.last_command ?? "")}</span>`;
-    row.addEventListener("click", () => selectProject(project));
-    return row;
+  /** Put the two steps back on a restored draft's cwd, without re-running the
+   * side effects of a fresh pick. */
+  function restoreSelection(path: string): boolean {
+    for (const group of groups) {
+      const wt = worktreesOf(group).find((p) => p.path === path);
+      const choice: WorktreeChoice | null =
+        wt ? wt.path : group.main.path === path ? "new" : null;
+      if (choice === null) continue;
+      selectedGroup = group;
+      worktreeChoice = choice;
+      renderWorktreeChoices(group);
+      markActiveChoice();
+      markActiveBox();
+      return true;
+    }
+    return false;
   }
 
-  function otherDirRow(): HTMLElement {
-    const row = document.createElement("button");
-    row.type = "button";
-    row.className = "project-row project-other";
-    row.innerHTML = `<span class="project-info"><span class="recent-dir">Other directory…</span></span>`;
-    row.addEventListener("click", () => showRawCwd(cwd || homeDir));
-    return row;
+  function projectBox(group: ProjectGroup): HTMLElement {
+    const project = group.main;
+    const box = document.createElement("button");
+    box.type = "button";
+    box.className = `project-box${isStale(project, new Date()) ? " is-stale" : ""}`;
+    box.dataset.cwd = project.path;
+    const trees = worktreesOf(group).length;
+    // The full path, not the sidebar's `~/t/n/maestro` abbreviation: it is what
+    // tells two projects sharing a basename apart (#95).
+    const meta = [trees > 0 ? `${trees} worktree${trees === 1 ? "" : "s"}` : "", project.last_command ?? ""]
+      .filter(Boolean)
+      .join(" · ");
+    box.innerHTML = `
+      <span class="project-name">${escapeHtml(project.name)}</span>
+      <span class="project-path">${escapeHtml(project.path)}</span>
+      <span class="project-meta">${escapeHtml(meta)}</span>`;
+    box.addEventListener("click", () => selectProject(group));
+    return box;
+  }
+
+  function renderWorktreeChoices(group: ProjectGroup): void {
+    wtChoices.replaceChildren();
+    wtChoices.appendChild(
+      choiceButton("new", "+ new", `new worktree of ${group.main.name}`),
+    );
+    for (const wt of worktreesOf(group)) {
+      wtChoices.appendChild(choiceButton(wt.path, wt.name, wt.path));
+    }
+    wtStep.hidden = false;
+  }
+
+  function choiceButton(choice: WorktreeChoice, label: string, sub: string): HTMLElement {
+    const btn = document.createElement("button");
+    btn.type = "button";
+    btn.className = `wt-choice${choice === "new" ? " wt-choice-new" : ""}`;
+    btn.dataset.kind = choice === "new" ? "new" : "existing";
+    if (choice !== "new") btn.dataset.cwd = choice;
+    btn.innerHTML = `
+      <span class="wt-choice-name">${escapeHtml(label)}</span>
+      <span class="wt-choice-sub">${escapeHtml(sub)}</span>`;
+    btn.addEventListener("click", () => applyWorktreeChoice(choice));
+    return btn;
   }
 
   function loadingRow(): HTMLElement {
@@ -531,6 +675,18 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
     return p;
   }
 
+  // ---- worktree: disclosure (#93), reuses the sidebar's folder-header ---
+  let advancedCollapsed = true;
+  function setAdvancedCollapsed(collapsed: boolean): void {
+    advancedCollapsed = collapsed;
+    wtToggle.setAttribute("aria-expanded", String(!collapsed));
+    wtCollapsible.hidden = collapsed;
+  }
+  function updateWtSummary(): void {
+    wtSummary.textContent = wtEnabled.checked ? "creates a worktree" : "no worktree";
+  }
+  wtToggle.addEventListener("click", () => setAdvancedCollapsed(!advancedCollapsed));
+
   // ---- worktree (branch-only; base_repo inferred via scan or /gitroot) --
   // The project scan already reports repo membership, so a picked project
   // resolves its base repo locally (#61); only the free-text escape hatch
@@ -569,7 +725,20 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
       applyProjectRepo(project.base_repo ?? project.path);
       return;
     }
-    void probeGitRoot();
+    scheduleGitRootProbe();
+  }
+
+  // Every keystroke resets this timer, so a burst of typing issues one
+  // request once the operator pauses. `probeToken` inside probeGitRoot still
+  // owns ordering: a scheduled probe that fires after a newer one started
+  // loses the token race and is dropped.
+  let probeTimer: number | undefined;
+  function scheduleGitRootProbe(): void {
+    window.clearTimeout(probeTimer);
+    probeTimer = window.setTimeout(() => {
+      probeTimer = undefined;
+      void probeGitRoot();
+    }, GITROOT_PROBE_DEBOUNCE_MS);
   }
 
   async function probeGitRoot(): Promise<void> {
@@ -598,6 +767,7 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
       // Publish the untick too, or the next render seeds the box checked with
       // no inferred repo and submitting fails.
       wtEnabled.checked = false;
+      updateWtSummary();
       emit();
       wtBody.hidden = true;
       wtHint.hidden = false;
@@ -671,6 +841,7 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
   branchSelect.addEventListener("change", () => emit());
 
   wtEnabled.addEventListener("change", () => {
+    updateWtSummary();
     emit();
     if (wtEnabled.checked) {
       resolveBaseRepo();
@@ -684,6 +855,7 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
   // The toggle defaults ON (#61): the operator almost always wants a
   // worktree, and every non-repo target unticks it via the gitroot probe.
   wtEnabled.checked = prefill.worktreeEnabled ?? true;
+  updateWtSummary();
   if (prefill.worktreeBranch) branchInput.value = prefill.worktreeBranch;
   setBranchMode(branchMode);
 
@@ -694,6 +866,43 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
   // ---- live dir autocomplete on the raw cwd input (NAP-329) ------------
   const autocomplete = attachDirAutocomplete(cwdRaw);
 
+  // ---- Enter submits from anywhere (#97) --------------------------------
+  // A project-box/wt-choice that isn't yet the active pick takes the Enter to
+  // choose it instead; the next Enter, now that it's active, submits.
+  // dirAutocomplete's own Enter (accept the highlight) already preventDefaults
+  // when it handles the key, which the `e.defaultPrevented` guard defers to.
+  // The worktree checkbox keeps Enter as a toggle (TUI parity: `WorktreeToggle`
+  // does the same) rather than folding it into the blanket-submit rule below.
+  form.addEventListener("keydown", (e) => {
+    if (e.key !== "Enter" || e.defaultPrevented) return;
+    const target = e.target as HTMLElement;
+
+    if (target === wtEnabled) {
+      e.preventDefault();
+      wtEnabled.checked = !wtEnabled.checked;
+      wtEnabled.dispatchEvent(new Event("change"));
+      return;
+    }
+
+    if (target instanceof HTMLButtonElement) {
+      if (!target.classList.contains("project-box") && !target.classList.contains("wt-choice")) return;
+      e.preventDefault();
+      if (!target.classList.contains("is-active")) {
+        target.click();
+        return;
+      }
+      form.requestSubmit();
+      return;
+    }
+
+    e.preventDefault();
+    if (target === filterInput) {
+      const top = visibleGroups(filterInput.value)[0];
+      if (top && top.main.path !== selectedGroup?.main.path) selectProject(top);
+    }
+    form.requestSubmit();
+  });
+
   // ---- submit ----------------------------------------------------------
   form.addEventListener("submit", async (e) => {
     e.preventDefault();
@@ -730,6 +939,7 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
     el: form,
     destroy() {
       destroyed = true;
+      window.clearTimeout(probeTimer);
       autocomplete.destroy();
       form.remove();
     },
diff --git a/web/src/spawnFormEnter.test.ts b/web/src/spawnFormEnter.test.ts
new file mode 100644
index 0000000..d856603
--- /dev/null
+++ b/web/src/spawnFormEnter.test.ts
@@ -0,0 +1,258 @@
+// @vitest-environment happy-dom
+// Enter submits the draft form from any field, at any point (#97). The two
+// exceptions: a picker button that isn't yet the active choice takes the
+// Enter to *choose* it instead (the next Enter submits), and the project
+// filter must resolve to the highlighted project rather than sending
+// whatever cwd was already set.
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+
+import { createSpawnForm, type SpawnFormHandle } from "./spawnForm.js";
+import type { Project } from "./types.js";
+
+const MAESTRO: Project = {
+  path: "/home/user/tea/maestro",
+  name: "maestro",
+  is_worktree: false,
+  last_activity: "2026-08-20T10:00:00Z",
+};
+
+const WT_A: Project = {
+  path: "/home/user/tea/maestro/worktrees/bulgarians",
+  name: "bulgarians",
+  is_worktree: true,
+  base_repo: MAESTRO.path,
+  last_activity: "2026-08-22T10:00:00Z",
+};
+
+const OTHER: Project = {
+  path: "/home/user/tea/rev",
+  name: "rev",
+  is_worktree: false,
+  last_activity: "2026-08-19T10:00:00Z",
+};
+
+function stubFetch(projects: Project[]): void {
+  vi.stubGlobal(
+    "fetch",
+    vi.fn(async (input: RequestInfo | URL) => {
+      const url = String(input);
+      const body = url.includes("/api/projects")
+        ? projects
+        : url.includes("/api/names")
+          ? { names: ["amber-fox"] }
+          : url.includes("/api/branches")
+            ? []
+            : url.includes("/api/dirs")
+              ? { path: "/opt", entries: ["nomatch-zzz"], truncated: false }
+              : { hostname: "h", version: "0", home_dir: "/home/user", presets: [] };
+      return new Response(JSON.stringify(body), { status: 200 });
+    }),
+  );
+}
+
+describe("spawnForm Enter-to-submit (#97)", () => {
+  let handle: SpawnFormHandle | null = null;
+
+  beforeEach(() => {
+    vi.useFakeTimers({ now: Date.parse("2026-08-23T12:00:00Z") });
+  });
+
+  afterEach(() => {
+    handle?.destroy();
+    handle = null;
+    vi.unstubAllGlobals();
+    vi.useRealTimers();
+  });
+
+  const drain = async () => {
+    for (let i = 0; i < 40; i++) await Promise.resolve();
+  };
+
+  async function mount(projects: Project[]): Promise<HTMLFormElement> {
+    stubFetch(projects);
+    handle = createSpawnForm({ onSuccess() {} });
+    document.body.appendChild(handle.el);
+    await drain();
+    return handle.el;
+  }
+
+  function submitSpy(): ReturnType<typeof vi.fn> {
+    return vi.fn();
+  }
+
+  function pressEnter(el: HTMLElement): { defaultPrevented: boolean } {
+    const evt = new KeyboardEvent("keydown", { key: "Enter", bubbles: true, cancelable: true });
+    el.dispatchEvent(evt);
+    return { defaultPrevented: evt.defaultPrevented };
+  }
+
+  const box = (form: HTMLFormElement, path: string) =>
+    form.querySelector<HTMLButtonElement>(`.project-box[data-cwd="${path}"]`)!;
+
+  it("toggles the worktree checkbox on Enter instead of submitting (TUI parity)", async () => {
+    const form = await mount([MAESTRO]);
+    box(form, MAESTRO.path).click();
+    await drain();
+    const toggle = form.querySelector<HTMLInputElement>("input[name=worktree_enabled]")!;
+    expect(toggle.checked).toBe(true);
+    const spy = submitSpy();
+    form.addEventListener("submit", spy);
+
+    pressEnter(toggle);
+    expect(toggle.checked).toBe(false);
+    expect(spy).not.toHaveBeenCalled();
+
+    pressEnter(toggle);
+    expect(toggle.checked).toBe(true);
+    expect(spy).not.toHaveBeenCalled();
+  });
+
+  describe("submits immediately from ordinary fields", () => {
+    it("name field", async () => {
+      const form = await mount([MAESTRO]);
+      box(form, MAESTRO.path).click();
+      await drain();
+      const spy = submitSpy();
+      form.addEventListener("submit", spy);
+
+      pressEnter(form.querySelector<HTMLInputElement>("input[name=name]")!);
+
+      expect(spy).toHaveBeenCalledTimes(1);
+    });
+
+    it("worktree branch field", async () => {
+      const form = await mount([MAESTRO]);
+      box(form, MAESTRO.path).click();
+      await drain();
+      const spy = submitSpy();
+      form.addEventListener("submit", spy);
+
+      pressEnter(form.querySelector<HTMLInputElement>("input[name=worktree_branch]")!);
+
+      expect(spy).toHaveBeenCalledTimes(1);
+    });
+
+    it("custom command field", async () => {
+      const form = await mount([MAESTRO]);
+      box(form, MAESTRO.path).click();
+      await drain();
+      form.querySelector<HTMLButtonElement>('.cmd-tiles .tile[data-id="custom"]')!.click();
+      const raw = form.querySelector<HTMLInputElement>(".cmd-raw")!;
+      raw.value = "bash -l";
+      raw.dispatchEvent(new Event("input"));
+      const spy = submitSpy();
+      form.addEventListener("submit", spy);
+
+      pressEnter(raw);
+
+      expect(spy).toHaveBeenCalledTimes(1);
+    });
+
+    it("raw cwd field once the autocomplete dropdown is closed", async () => {
+      const form = await mount([MAESTRO]);
+      form.querySelector<HTMLButtonElement>(".project-other")!.click();
+      const raw = form.querySelector<HTMLInputElement>("input[name=cwd_raw]")!;
+      raw.value = "/opt/xyz-nothing-here";
+      raw.dispatchEvent(new Event("input"));
+      await vi.advanceTimersByTimeAsync(300);
+      const spy = submitSpy();
+      form.addEventListener("submit", spy);
+
+      pressEnter(raw);
+
+      expect(spy).toHaveBeenCalledTimes(1);
+    });
+
+    it("does not submit while the raw cwd autocomplete has a highlighted suggestion", async () => {
+      const form = await mount([MAESTRO]);
+      form.querySelector<HTMLButtonElement>(".project-other")!.click();
+      const raw = form.querySelector<HTMLInputElement>("input[name=cwd_raw]")!;
+      raw.focus();
+      raw.value = "/opt/";
+      raw.dispatchEvent(new Event("input", { bubbles: true }));
+      await vi.advanceTimersByTimeAsync(150);
+      const spy = submitSpy();
+      form.addEventListener("submit", spy);
+
+      const { defaultPrevented } = pressEnter(raw);
+
+      expect(defaultPrevented).toBe(true);
+      expect(spy).not.toHaveBeenCalled();
+      expect(raw.value).toBe("/opt/nomatch-zzz/");
+    });
+  });
+
+  describe("two-step picker: first Enter chooses, second submits", () => {
+    it("project box", async () => {
+      const form = await mount([MAESTRO]);
+      const b = box(form, MAESTRO.path);
+      b.focus();
+      const spy = submitSpy();
+      form.addEventListener("submit", spy);
+
+      const first = pressEnter(b);
+      expect(first.defaultPrevented).toBe(true);
+      expect(b.classList.contains("is-active")).toBe(true);
+      expect(spy).not.toHaveBeenCalled();
+
+      pressEnter(b);
+      expect(spy).toHaveBeenCalledTimes(1);
+    });
+
+    it("worktree choice", async () => {
+      const form = await mount([MAESTRO, WT_A]);
+      box(form, MAESTRO.path).click();
+      await drain();
+      const choice = form.querySelector<HTMLButtonElement>(`.wt-choice[data-cwd="${WT_A.path}"]`)!;
+      expect(choice.classList.contains("is-active")).toBe(false); // "+ new" is the default
+      const spy = submitSpy();
+      form.addEventListener("submit", spy);
+
+      pressEnter(choice);
+      expect(choice.classList.contains("is-active")).toBe(true);
+      expect(spy).not.toHaveBeenCalled();
+
+      pressEnter(choice);
+      expect(spy).toHaveBeenCalledTimes(1);
+    });
+  });
+
+  describe("project filter", () => {
+    it("submits with the highlighted (first matching) project, not the filter text", async () => {
+      const form = await mount([MAESTRO, OTHER]);
+      const filter = form.querySelector<HTMLInputElement>(".project-filter")!;
+      filter.value = "rev";
+      filter.dispatchEvent(new Event("input"));
+      const spy = submitSpy();
+      form.addEventListener("submit", spy);
+
+      pressEnter(filter);
+
+      expect(spy).toHaveBeenCalledTimes(1);
+      expect(box(form, OTHER.path).classList.contains("is-active")).toBe(true);
+    });
+
+    it("does not clobber an already-chosen worktree when the filter still matches it", async () => {
+      const form = await mount([MAESTRO, WT_A]);
+      box(form, MAESTRO.path).click();
+      await drain();
+      form.querySelector<HTMLButtonElement>(`.wt-choice[data-cwd="${WT_A.path}"]`)!.click();
+      await drain();
+
+      const filter = form.querySelector<HTMLInputElement>(".project-filter")!;
+      filter.value = "maestro";
+      filter.dispatchEvent(new Event("input"));
+      const spy = submitSpy();
+      form.addEventListener("submit", spy);
+
+      pressEnter(filter);
+
+      expect(spy).toHaveBeenCalledTimes(1);
+      expect(
+        form.querySelector<HTMLButtonElement>(`.wt-choice[data-cwd="${WT_A.path}"]`)!.classList.contains(
+          "is-active",
+        ),
+      ).toBe(true);
+    });
+  });
+});
diff --git a/web/src/spawnFormPreset.test.ts b/web/src/spawnFormPreset.test.ts
new file mode 100644
index 0000000..e7fe7bc
--- /dev/null
+++ b/web/src/spawnFormPreset.test.ts
@@ -0,0 +1,124 @@
+// @vitest-environment happy-dom
+import { afterEach, describe, expect, it, vi } from "vitest";
+
+import { createSpawnForm, type SpawnFormHandle, type SpawnFormValues } from "./spawnForm.js";
+
+/** Stubs fetch so `/api/info` only resolves once `resolveInfo()` is called —
+ * everything else (names, projects, gitroot) answers immediately with an
+ * empty/default body. Lets a test pick a preset (or type a custom command)
+ * mid-flight, then observe what the late `/api/info` resolution does to it. */
+function stubDeferredInfo(): { resolveInfo: () => void } {
+  let releaseInfo: () => void = () => {};
+  const infoGate = new Promise<void>((resolve) => {
+    releaseInfo = resolve;
+  });
+  vi.stubGlobal(
+    "fetch",
+    vi.fn(async (input: RequestInfo | URL) => {
+      const url = String(input);
+      if (url.includes("/api/info")) {
+        await infoGate;
+        return new Response(
+          JSON.stringify({
+            hostname: "h",
+            version: "0",
+            home_dir: "/home/user",
+            presets: [
+              { id: "claude", label: "Claude", command: "claude" },
+              { id: "fish", label: "Fish", command: "fish" },
+              { id: "custom", label: "Custom…", command: "" },
+            ],
+          }),
+          { status: 200 },
+        );
+      }
+      if (url.includes("/api/names")) {
+        return new Response(JSON.stringify({ names: ["amber-fox"] }), { status: 200 });
+      }
+      return new Response(JSON.stringify([]), { status: 200 });
+    }),
+  );
+  return { resolveInfo: releaseInfo };
+}
+
+describe("spawnForm preset selection vs. late /api/info (#76)", () => {
+  let handle: SpawnFormHandle | null = null;
+
+  afterEach(() => {
+    handle?.destroy();
+    handle = null;
+    vi.unstubAllGlobals();
+  });
+
+  async function drain(): Promise<void> {
+    for (let i = 0; i < 40; i++) await Promise.resolve();
+  }
+
+  it("keeps an operator-picked tile after /api/info resolves late", async () => {
+    const { resolveInfo } = stubDeferredInfo();
+    let values: SpawnFormValues | undefined;
+    handle = createSpawnForm({ onChange: (v) => (values = v), onSuccess() {} });
+    const form = handle.el;
+    document.body.appendChild(form);
+    await drain();
+
+    // Fallback presets are up; the operator picks "zsh" before /api/info lands.
+    const zshTile = [...form.querySelectorAll<HTMLButtonElement>(".tile")].find(
+      (t) => t.dataset.id === "zsh",
+    )!;
+    zshTile.click();
+    expect(zshTile.classList.contains("is-active")).toBe(true);
+
+    // /api/info lands late with a preset list that doesn't even include "zsh".
+    resolveInfo();
+    await drain();
+
+    // The operator's pick must not be discarded back to the new list's first
+    // entry — `onChange` only starts firing once the initial load settles
+    // (`ready`), which happens right here, so this is the first place the
+    // published command is observable.
+    expect(values?.command).toBe("zsh");
+  });
+
+  it("keeps an operator-typed custom command after /api/info resolves late", async () => {
+    const { resolveInfo } = stubDeferredInfo();
+    let values: SpawnFormValues | undefined;
+    handle = createSpawnForm({ onChange: (v) => (values = v), onSuccess() {} });
+    const form = handle.el;
+    document.body.appendChild(form);
+    await drain();
+
+    const customTile = [...form.querySelectorAll<HTMLButtonElement>(".tile")].find(
+      (t) => t.dataset.id === "custom",
+    )!;
+    customTile.click();
+    const cmdRaw = form.querySelector<HTMLInputElement>(".cmd-raw")!;
+    cmdRaw.value = "htop";
+    cmdRaw.dispatchEvent(new Event("input"));
+
+    resolveInfo();
+    await drain();
+
+    expect(values?.command).toBe("htop");
+    expect(cmdRaw.value).toBe("htop");
+  });
+
+  it("still applies the real presets' first entry when the operator never touched the command", async () => {
+    const { resolveInfo } = stubDeferredInfo();
+    let values: SpawnFormValues | undefined;
+    handle = createSpawnForm({ onChange: (v) => (values = v), onSuccess() {} });
+    const form = handle.el;
+    document.body.appendChild(form);
+    await drain();
+
+    resolveInfo();
+    await drain();
+
+    // Untouched: the refined preset list is still free to settle the command.
+    expect(values?.command).toBe("claude");
+    const fishTile = [...form.querySelectorAll<HTMLButtonElement>(".tile")].find(
+      (t) => t.dataset.id === "fish",
+    );
+    expect(fishTile).toBeDefined();
+  });
+});
diff --git a/web/src/spawnFormProbe.test.ts b/web/src/spawnFormProbe.test.ts
new file mode 100644
index 0000000..b711340
--- /dev/null
+++ b/web/src/spawnFormProbe.test.ts
@@ -0,0 +1,148 @@
+// @vitest-environment happy-dom
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+
+import { createSpawnForm, type SpawnFormHandle } from "./spawnForm.js";
+
+/** Debounce window under test — must equal GITROOT_PROBE_DEBOUNCE_MS in
+ * spawnForm.ts (#74). */
+const DEBOUNCE_MS = 250;
+
+const PROJECTS = [
+  { path: "/home/user/maestro", name: "maestro", last_activity: "2026-08-20T10:00:00Z" },
+];
+
+/** Stub the fetches the form makes. Gitroot responses for a given path can be
+ * held until `releaseGitRoot(path)` is called, so tests can land answers out
+ * of order. */
+function stubFetch(opts?: { holdGitRootFor?: string[] }): {
+  urls: string[];
+  gitRootCalls: string[];
+  releaseGitRoot: (path: string) => void;
+} {
+  const urls: string[] = [];
+  const gitRootCalls: string[] = [];
+  const releases = new Map<string, () => void>();
+  const held = new Map<string, Promise<void>>();
+  vi.stubGlobal(
+    "fetch",
+    vi.fn(async (input: RequestInfo | URL) => {
+      const url = String(input);
+      urls.push(url);
+      if (url.includes("/api/dirs")) {
+        return new Response(JSON.stringify({ entries: [] }), { status: 200 });
+      }
+      if (url.includes("/api/gitroot")) {
+        const path = new URL(url, "http://localhost").searchParams.get("path") ?? "";
+        gitRootCalls.push(path);
+        if (opts?.holdGitRootFor?.includes(path)) {
+          let release!: () => void;
+          held.set(
+            path,
+            new Promise<void>((r) => {
+              release = r;
+            }),
+          );
+          releases.set(path, release);
+        }
+        await held.get(path);
+        return new Response(JSON.stringify({ root: path }), { status: 200 });
+      }
+      if (url.includes("/api/names")) {
+        return new Response(JSON.stringify({ names: ["amber-fox"] }), { status: 200 });
+      }
+      if (url.includes("/api/projects")) {
+        return new Response(JSON.stringify(PROJECTS), { status: 200 });
+      }
+      return new Response(
+        JSON.stringify({ hostname: "h", version: "0", home_dir: "/home/user", presets: [] }),
+        { status: 200 },
+      );
+    }),
+  );
+  return {
+    urls,
+    gitRootCalls,
+    releaseGitRoot: (path: string) => releases.get(path)?.(),
+  };
+}
+
+describe("spawnForm gitroot probe debounce (#74)", () => {
+  let handle: SpawnFormHandle | null = null;
+
+  beforeEach(() => {
+    vi.useFakeTimers();
+  });
+
+  afterEach(() => {
+    handle?.destroy();
+    handle = null;
+    vi.unstubAllGlobals();
+    vi.useRealTimers();
+  });
+
+  async function mount(opts?: Parameters<typeof stubFetch>[0]) {
+    const stub = stubFetch(opts);
+    handle = createSpawnForm({ onSuccess() {} });
+    document.body.appendChild(handle.el);
+    for (let i = 0; i < 40; i++) await Promise.resolve();
+    return { form: handle.el, stub };
+  }
+
+  const drain = async () => {
+    for (let i = 0; i < 40; i++) await Promise.resolve();
+  };
+
+  function typeRaw(form: HTMLFormElement, value: string): void {
+    const raw = form.querySelector<HTMLInputElement>("input[name=cwd_raw]")!;
+    raw.value = value;
+    raw.dispatchEvent(new Event("input"));
+  }
+
+  it("a keystroke burst fires exactly one probe after the quiet period", async () => {
+    const { form, stub } = await mount();
+
+    form.querySelector<HTMLElement>(".project-other")!.click();
+    // Burst: every keystroke reschedules; nothing may hit /api/gitroot yet.
+    for (let i = 1; i <= "/opt/somewhere".length; i++) {
+      typeRaw(form, "/opt/somewhere".slice(0, i));
+      await drain();
+      expect(stub.gitRootCalls).toEqual([]);
+    }
+
+    await vi.advanceTimersByTimeAsync(DEBOUNCE_MS);
+    await drain();
+
+    expect(stub.gitRootCalls).toEqual(["/opt/somewhere"]);
+    expect(stub.urls.filter((u) => u.includes("/api/gitroot")).length).toBe(1);
+  });
+
+  it("a stale probe answer cannot overwrite a newer input", async () => {
+    const { form, stub } = await mount({ holdGitRootFor: ["/repo/old"] });
+
+    form.querySelector<HTMLElement>(".project-other")!.click();
+
+    // Probe for the old target, held in flight.
+    typeRaw(form, "/repo/old");
+    await vi.advanceTimersByTimeAsync(DEBOUNCE_MS);
+
+    // Newer target supersedes it and answers immediately.
+    typeRaw(form, "/repo/new");
+    await vi.advanceTimersByTimeAsync(DEBOUNCE_MS);
+    await drain();
+
+    expect(stub.gitRootCalls).toEqual(["/repo/old", "/repo/new"]);
+    expect(form.querySelector<HTMLElement>(".wt-repo")!.textContent).toContain("/repo/new");
+    expect(
+      form.querySelector<HTMLInputElement>("input[name=worktree_enabled]")!.checked,
+    ).toBe(true);
+
+    // The late answer to the old target lands last but must lose.
+    stub.releaseGitRoot("/repo/old");
+    await drain();
+
+    expect(form.querySelector<HTMLElement>(".wt-repo")!.textContent).toContain("/repo/new");
+    expect(
+      form.querySelector<HTMLInputElement>("input[name=worktree_enabled]")!.checked,
+    ).toBe(true);
+  });
+});
diff --git a/web/src/spawnFormWorktree.test.ts b/web/src/spawnFormWorktree.test.ts
index 76fd12c..6a39479 100644
--- a/web/src/spawnFormWorktree.test.ts
+++ b/web/src/spawnFormWorktree.test.ts
@@ -18,6 +18,7 @@ const BRANCHES = [
  * its branch list is still in flight. */
 function stubFetch(opts?: {
   gateBranches?: (release: () => void) => void;
+  projects?: unknown[];
 }): string[] {
   const urls: string[] = [];
   const gated = new Promise<void>((resolve) => {
@@ -37,7 +38,7 @@ function stubFetch(opts?: {
         return new Response(JSON.stringify(BRANCHES), { status: 200 });
       }
       if (url.includes("/api/projects")) {
-        return new Response(JSON.stringify(PROJECTS), { status: 200 });
+        return new Response(JSON.stringify(opts?.projects ?? PROJECTS), { status: 200 });
       }
       return new Response(
         JSON.stringify({ hostname: "h", version: "0", home_dir: "/home/user", presets: [] }),
@@ -79,10 +80,10 @@ describe("spawnForm worktree defaults and branch picker (#61)", () => {
   };
 
   function pickProject(form: HTMLFormElement): void {
-    form.querySelector<HTMLButtonElement>(".project-row.project-other")!.click();
+    form.querySelector<HTMLButtonElement>(".project-other")!.click();
     form
-      .querySelectorAll<HTMLButtonElement>(".project-row")
-      .forEach((row) => row.dataset.cwd === "/home/user/maestro" && row.click());
+      .querySelectorAll<HTMLButtonElement>(".project-box")
+      .forEach((box) => box.dataset.cwd === "/home/user/maestro" && box.click());
   }
 
   it("defaults the worktree toggle on for a picked project with no gitroot probe", async () => {
@@ -100,14 +101,44 @@ describe("spawnForm worktree defaults and branch picker (#61)", () => {
     );
   });
 
+  it("defaults the worktree toggle off for a row that is itself a worktree (#91)", async () => {
+    urls = stubFetch({
+      projects: [
+        {
+          path: "/home/user/wt-91",
+          name: "wt-91",
+          is_worktree: true,
+          base_repo: "/home/user/maestro",
+          last_activity: "2026-08-20T10:00:00Z",
+        },
+      ],
+    });
+    handle = createSpawnForm({ onSuccess() {} });
+    document.body.appendChild(handle.el);
+    for (let i = 0; i < 40; i++) await Promise.resolve();
+
+    handle.el
+      .querySelectorAll<HTMLButtonElement>(".project-box")
+      .forEach((box) => box.dataset.cwd === "/home/user/wt-91" && box.click());
+    await drain();
+
+    expect(handle.el.querySelector<HTMLInputElement>("input[name=worktree_enabled]")!.checked).toBe(
+      false,
+    );
+    expect(urls.some((u) => u.includes("/api/gitroot"))).toBe(false);
+    expect(handle.el.querySelector<HTMLElement>(".wt-body")!.hidden).toBe(true);
+  });
+
   it("still probes the gitroot for a free-text directory", async () => {
     const form = await mount();
 
-    // Escape hatch: switch to a free-text dir; only now does /api/gitroot fire.
-    form.querySelector<HTMLElement>(".project-row.project-other")!.click();
+    // Escape hatch: switch to a free-text dir; only now does /api/gitroot
+    // fire — debounced, so the quiet period must elapse first (#74).
+    form.querySelector<HTMLElement>(".project-other")!.click();
     const raw = form.querySelector<HTMLInputElement>("input[name=cwd_raw]")!;
     raw.value = "/opt/somewhere";
     raw.dispatchEvent(new Event("input"));
+    await vi.advanceTimersByTimeAsync(250);
     await drain();
 
     expect(urls.some((u) => u.includes("/api/gitroot"))).toBe(true);
@@ -149,6 +180,74 @@ describe("spawnForm worktree defaults and branch picker (#61)", () => {
     expect(modes.at(-1)).toBe("existing");
   });
 
+  it("labels the new-branch input and existing-branch picker distinctly (#94)", async () => {
+    const form = await mount();
+    pickProject(form);
+    await drain();
+
+    const newLabel = form.querySelector<HTMLElement>(".wt-new-wrap")!.textContent!.trim();
+    const existLabel = form.querySelector<HTMLElement>(".wt-exist-wrap")!.textContent!.trim();
+
+    expect(newLabel).not.toBe("Branch");
+    expect(existLabel).not.toBe("Branch");
+    expect(newLabel).not.toBe(existLabel);
+    expect(newLabel).toMatch(/name/i);
+    expect(existLabel).toMatch(/pick|choose|select/i);
+  });
+
+  it("collapses the advanced (worktree) section by default (#93)", async () => {
+    const form = await mount();
+    const toggle = form.querySelector<HTMLButtonElement>(".wt-toggle")!;
+    expect(toggle.getAttribute("aria-expanded")).toBe("false");
+    expect(form.querySelector<HTMLElement>(".wt-collapsible")!.hidden).toBe(true);
+  });
+
+  it("states in the collapsed header that a worktree will be created by default (#93)", async () => {
+    const form = await mount();
+    expect(form.querySelector<HTMLElement>(".wt-summary")!.textContent).toMatch(/creates? a worktree/i);
+  });
+
+  it("states in the collapsed header that no worktree will be created for a worktree row (#91, #93)", async () => {
+    urls = stubFetch({
+      projects: [
+        {
+          path: "/home/user/wt-91",
+          name: "wt-91",
+          is_worktree: true,
+          base_repo: "/home/user/maestro",
+          last_activity: "2026-08-20T10:00:00Z",
+        },
+      ],
+    });
+    handle = createSpawnForm({ onSuccess() {} });
+    document.body.appendChild(handle.el);
+    for (let i = 0; i < 40; i++) await Promise.resolve();
+
+    handle.el
+      .querySelectorAll<HTMLButtonElement>(".project-box")
+      .forEach((box) => box.dataset.cwd === "/home/user/wt-91" && box.click());
+    await drain();
+
+    expect(handle.el.querySelector<HTMLElement>(".wt-summary")!.textContent).toMatch(/no worktree/i);
+    // Still collapsed — picking a project must not force it open.
+    expect(handle.el.querySelector<HTMLButtonElement>(".wt-toggle")!.getAttribute("aria-expanded")).toBe(
+      "false",
+    );
+  });
+
+  it("expanding the advanced section does not reorder the fields above it (#93)", async () => {
+    const form = await mount();
+    const before = [...form.querySelectorAll(".field")];
+
+    form.querySelector<HTMLButtonElement>(".wt-toggle")!.click();
+
+    expect(form.querySelector<HTMLButtonElement>(".wt-toggle")!.getAttribute("aria-expanded")).toBe(
+      "true",
+    );
+    expect(form.querySelector<HTMLElement>(".wt-collapsible")!.hidden).toBe(false);
+    expect([...form.querySelectorAll(".field")]).toStrictEqual(before);
+  });
+
   it("does not repopulate a destroyed form when the branch list lands late", async () => {
     const gate: { release?: () => void } = {};
     urls = stubFetch({ gateBranches: (r) => (gate.release = r) });
diff --git a/web/src/styles.css b/web/src/styles.css
index 065d7e1..cd89d81 100644
--- a/web/src/styles.css
+++ b/web/src/styles.css
@@ -727,10 +727,8 @@ textarea {
 }
 
 /* Earlier path segments collapse to their initial; the trailing segment (the
-   one that actually names the dir) stays full. Dim the collapsed prefix. Shared
-   by the sidebar tree and the spawn dialog's recent-directory picker. */
-.folder-name .folder-stem,
-.recent-dir .folder-stem {
+   one that actually names the dir) stays full. Dim the collapsed prefix. */
+.folder-name .folder-stem {
   color: var(--faint);
 }
 
@@ -1215,6 +1213,9 @@ textarea {
 /* ---------- forms ---------- */
 
 .spawn-form {
+  width: 100%;
+  max-width: 60ch;
+  margin: 0 auto;
   padding: var(--sp-3);
   overflow: auto;
   display: flex;
@@ -1283,18 +1284,33 @@ textarea {
 .worktree {
   border: 1px solid var(--border);
   border-radius: var(--r-2);
-  padding: var(--sp-3);
+  padding: 0 var(--sp-3);
   margin: 0;
   display: flex;
   flex-direction: column;
-  gap: var(--sp-3);
   background: color-mix(in oklab, var(--surface-2) 50%, transparent);
 }
 
-.worktree legend {
-  padding: 0 6px;
-  color: var(--ink);
-  font-size: var(--fs-13);
+.worktree .wt-toggle {
+  margin: 0 calc(var(--sp-3) * -1);
+  padding-left: var(--sp-3);
+  width: calc(100% + var(--sp-3) * 2);
+}
+
+.wt-summary {
+  color: var(--muted);
+  font-size: var(--fs-12);
+}
+
+.wt-collapsible {
+  display: flex;
+  flex-direction: column;
+  gap: var(--sp-3);
+  padding-bottom: var(--sp-3);
+}
+
+.wt-collapsible[hidden] {
+  display: none;
 }
 
 .form-error {
@@ -1378,8 +1394,9 @@ textarea {
   color: var(--muted);
 }
 
-/* Project picker rows (#59). Worktree rows are indented under their base
-   repository; rows stale beyond 7 days are dimmed but still selectable. */
+/* Working-directory picker (#95). Two steps: a grid of project boxes, then the
+   picked project's worktree choices. Stale beyond 7 days dims but stays
+   selectable. */
 .picker {
   display: flex;
   flex-direction: column;
@@ -1394,73 +1411,155 @@ textarea {
   width: 100%;
 }
 
-.project-row {
+/* `display` from `.field`/`.raw-wrap` outranks the UA sheet's `[hidden]`, so
+   step two and the raw-cwd hatch stayed visible while hidden. */
+.wt-step[hidden],
+.raw-wrap[hidden] {
+  display: none;
+}
+
+.picker.projects {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
+  align-content: start;
+  gap: var(--sp-2);
+  max-height: 300px;
+  padding: 1px;
+}
+
+.project-box {
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
+  min-width: 0;
+  padding: var(--sp-2) var(--sp-3);
+  background: var(--surface-2);
+  border: 1px solid var(--border);
+  border-radius: var(--r-2);
+  color: var(--ink);
+  font-family: inherit;
+  text-align: left;
+  cursor: pointer;
+  transition:
+    border-color var(--dur-fast) var(--ease-out),
+    background var(--dur-fast) var(--ease-out);
+}
+
+.project-box:hover {
+  border-color: var(--border-strong);
+}
+
+.project-box.is-active {
+  border-color: var(--accent);
+  background: var(--accent-tint);
+}
+
+.project-box.is-stale {
+  opacity: 0.55;
+}
+
+.project-name {
+  font-size: var(--fs-13);
+  font-weight: 600;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+/* The whole path, never abbreviated — it is what tells two projects sharing a
+   basename apart. Wraps rather than truncating so none of it is hidden. */
+.project-path {
+  font-family: var(--font-mono);
+  font-size: var(--fs-12);
+  line-height: 1.35;
+  color: var(--muted);
+  overflow-wrap: anywhere;
+}
+
+.project-meta {
+  font-family: var(--font-mono);
+  font-size: var(--fs-12);
+  color: var(--faint);
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.project-meta:empty {
+  display: none;
+}
+
+.project-other {
+  align-self: flex-start;
+  padding: 4px 0;
+  min-height: 30px;
+  background: none;
+  border: 0;
+  color: var(--muted);
+  font-family: inherit;
+  font-size: var(--fs-13);
+  font-style: italic;
+  text-align: left;
+  cursor: pointer;
+}
+
+.project-other:hover {
+  color: var(--ink);
+}
+
+/* Step two: "+ new" (create one) or an existing worktree (run in it). */
+.picker.wt-choices {
+  max-height: 200px;
+}
+
+.wt-choice {
   display: flex;
   align-items: baseline;
   justify-content: space-between;
   gap: var(--sp-3);
+  min-height: 32px;
   padding: 6px var(--sp-3);
   background: var(--surface-2);
   border: 1px solid var(--border);
   border-radius: var(--r-2);
   color: var(--ink);
   font-family: inherit;
-  cursor: pointer;
   text-align: left;
+  cursor: pointer;
   transition:
     border-color var(--dur-fast) var(--ease-out),
     background var(--dur-fast) var(--ease-out);
 }
 
-.project-row:hover {
+.wt-choice:hover {
   border-color: var(--border-strong);
 }
 
-.project-row.is-active {
+.wt-choice.is-active {
   border-color: var(--accent);
   background: var(--accent-tint);
 }
 
-.project-row.is-worktree {
-  margin-left: var(--sp-4);
-}
-
-.project-row.is-stale {
-  opacity: 0.55;
-}
-
-.project-info {
-  display: flex;
-  align-items: baseline;
-  gap: var(--sp-2);
-  min-width: 0;
-}
-
-.project-name {
+.wt-choice-name {
+  flex: 0 0 auto;
   font-size: var(--fs-13);
   font-weight: 600;
   white-space: nowrap;
 }
 
-.recent-dir {
+.wt-choice-new .wt-choice-name {
   font-family: var(--font-mono);
-  font-size: var(--fs-12);
-  color: var(--muted);
-  overflow: hidden;
-  text-overflow: ellipsis;
-  white-space: nowrap;
+  color: var(--accent);
 }
 
-.recent-cmd {
-  flex: 0 0 auto;
+.wt-choice-sub {
+  min-width: 0;
   font-family: var(--font-mono);
   font-size: var(--fs-12);
+  line-height: 1.35;
   color: var(--muted);
-}
-
-.project-other .recent-dir {
-  font-family: inherit;
-  font-style: italic;
+  text-align: right;
+  overflow-wrap: anywhere;
 }
 
 .picker-empty {
diff --git a/web/src/worktreeStep.test.ts b/web/src/worktreeStep.test.ts
new file mode 100644
index 0000000..c89a011
--- /dev/null
+++ b/web/src/worktreeStep.test.ts
@@ -0,0 +1,233 @@
+// @vitest-environment happy-dom
+// Second step of the working-directory picker (#95). See the interaction rules
+// block in spawnForm.ts for what each choice means.
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+
+import { createSpawnForm, type SpawnFormHandle, type SpawnFormValues } from "./spawnForm.js";
+import type { Project } from "./types.js";
+
+const MAESTRO: Project = {
+  path: "/home/user/tea/maestro",
+  name: "maestro",
+  is_worktree: false,
+  last_activity: "2026-08-20T10:00:00Z",
+  last_command: "claude",
+};
+
+const WT_A: Project = {
+  path: "/home/user/tea/maestro/worktrees/bulgarians",
+  name: "bulgarians",
+  is_worktree: true,
+  base_repo: MAESTRO.path,
+  last_activity: "2026-08-22T10:00:00Z",
+};
+
+const WT_B: Project = {
+  path: "/home/user/tea/maestro/worktrees/spawn-v2",
+  name: "spawn-v2",
+  is_worktree: true,
+  base_repo: MAESTRO.path,
+  last_activity: "2026-08-21T10:00:00Z",
+};
+
+const OTHER: Project = {
+  path: "/home/user/tea/rev",
+  name: "rev",
+  is_worktree: false,
+  last_activity: "2026-08-19T10:00:00Z",
+};
+
+function stubFetch(projects: Project[]): string[] {
+  const urls: string[] = [];
+  vi.stubGlobal(
+    "fetch",
+    vi.fn(async (input: RequestInfo | URL) => {
+      const url = String(input);
+      urls.push(url);
+      const body = url.includes("/api/projects")
+        ? projects
+        : url.includes("/api/names")
+          ? { names: ["amber-fox"] }
+          : url.includes("/api/branches")
+            ? []
+            : { hostname: "h", version: "0", home_dir: "/home/user", presets: [] };
+      return new Response(JSON.stringify(body), { status: 200 });
+    }),
+  );
+  return urls;
+}
+
+describe("spawnForm worktree step (#95)", () => {
+  let handle: SpawnFormHandle | null = null;
+  let urls: string[] = [];
+  let changes: SpawnFormValues[] = [];
+
+  beforeEach(() => {
+    vi.useFakeTimers({ now: Date.parse("2026-08-23T12:00:00Z") });
+    changes = [];
+  });
+
+  afterEach(() => {
+    handle?.destroy();
+    handle = null;
+    vi.unstubAllGlobals();
+    vi.useRealTimers();
+  });
+
+  const drain = async () => {
+    for (let i = 0; i < 40; i++) await Promise.resolve();
+  };
+
+  async function mount(projects: Project[]): Promise<HTMLFormElement> {
+    urls = stubFetch(projects);
+    handle = createSpawnForm({ onSuccess() {}, onChange: (v) => changes.push(v) });
+    document.body.appendChild(handle.el);
+    await drain();
+    return handle.el;
+  }
+
+  const step = (form: HTMLFormElement) => form.querySelector<HTMLElement>(".wt-step")!;
+  const choices = (form: HTMLFormElement) => [
+    ...form.querySelectorAll<HTMLButtonElement>(".wt-choice"),
+  ];
+  const activeChoice = (form: HTMLFormElement) =>
+    form.querySelector<HTMLButtonElement>(".wt-choice.is-active");
+  const box = (form: HTMLFormElement, path: string) =>
+    form.querySelector<HTMLButtonElement>(`.project-box[data-cwd="${path}"]`)!;
+  const toggle = (form: HTMLFormElement) =>
+    form.querySelector<HTMLInputElement>("input[name=worktree_enabled]")!;
+
+  it("hides the worktree step until a project is picked", async () => {
+    const form = await mount([MAESTRO, WT_A]);
+    expect(step(form).hidden).toBe(true);
+    expect(choices(form)).toEqual([]);
+
+    box(form, MAESTRO.path).click();
+    await drain();
+
+    expect(step(form).hidden).toBe(false);
+  });
+
+  it("lists '+ new' first and selected by default, then the project's worktrees", async () => {
+    const form = await mount([MAESTRO, WT_A, WT_B]);
+    box(form, MAESTRO.path).click();
+    await drain();
+
+    const labels = choices(form).map((c) => c.querySelector(".wt-choice-name")!.textContent);
+    expect(labels).toEqual(["+ new", "bulgarians", "spawn-v2"]);
+    expect(activeChoice(form)!.dataset.kind).toBe("new");
+  });
+
+  it("taking the '+ new' default runs in the repo with the create toggle on", async () => {
+    const form = await mount([MAESTRO, WT_A]);
+    box(form, MAESTRO.path).click();
+    await drain();
+
+    expect(changes.at(-1)!.cwd).toBe(MAESTRO.path);
+    expect(changes.at(-1)!.worktreeEnabled).toBe(true);
+    expect(toggle(form).checked).toBe(true);
+    expect(form.querySelector<HTMLElement>(".wt-repo")!.textContent).toContain(MAESTRO.path);
+    // The scan already knows the repo — no probe.
+    expect(urls.some((u) => u.includes("/api/gitroot"))).toBe(false);
+  });
+
+  it("picking an existing worktree runs in it with the create toggle off (#91)", async () => {
+    const form = await mount([MAESTRO, WT_A, WT_B]);
+    box(form, MAESTRO.path).click();
+    await drain();
+
+    const existing = choices(form).find((c) => c.dataset.cwd === WT_A.path)!;
+    existing.click();
+    await drain();
+
+    expect(changes.at(-1)!.cwd).toBe(WT_A.path);
+    expect(changes.at(-1)!.worktreeEnabled).toBe(false);
+    expect(toggle(form).checked).toBe(false);
+    expect(form.querySelector<HTMLElement>(".wt-body")!.hidden).toBe(true);
+    expect(existing.classList.contains("is-active")).toBe(true);
+    // Still no probe: the scan reported this worktree's repo membership.
+    expect(urls.some((u) => u.includes("/api/gitroot"))).toBe(false);
+    // The project box stays marked — it is what the worktree list belongs to.
+    expect(box(form, MAESTRO.path).classList.contains("is-active")).toBe(true);
+  });
+
+  it("switching back to '+ new' re-enables the create toggle", async () => {
+    const form = await mount([MAESTRO, WT_A]);
+    box(form, MAESTRO.path).click();
+    await drain();
+    choices(form)
+      .find((c) => c.dataset.cwd === WT_A.path)!
+      .click();
+    await drain();
+
+    choices(form)
+      .find((c) => c.dataset.kind === "new")!
+      .click();
+    await drain();
+
+    expect(changes.at(-1)!.cwd).toBe(MAESTRO.path);
+    expect(changes.at(-1)!.worktreeEnabled).toBe(true);
+    expect(toggle(form).checked).toBe(true);
+  });
+
+  it("repopulates and resets to '+ new' when another project is picked", async () => {
+    const form = await mount([MAESTRO, WT_A, OTHER]);
+    box(form, MAESTRO.path).click();
+    await drain();
+    choices(form)
+      .find((c) => c.dataset.cwd === WT_A.path)!
+      .click();
+    await drain();
+
+    box(form, OTHER.path).click();
+    await drain();
+
+    expect(choices(form).map((c) => c.dataset.kind)).toEqual(["new"]);
+    expect(activeChoice(form)!.dataset.kind).toBe("new");
+    expect(changes.at(-1)!.cwd).toBe(OTHER.path);
+    expect(changes.at(-1)!.worktreeEnabled).toBe(true);
+  });
+
+  it("defaults to the worktree itself when the box is a linked worktree (#91)", async () => {
+    // No main checkout in the scan, so the orphan worktree is its own box.
+    const form = await mount([WT_A]);
+    box(form, WT_A.path).click();
+    await drain();
+
+    expect(activeChoice(form)!.dataset.cwd).toBe(WT_A.path);
+    expect(changes.at(-1)!.cwd).toBe(WT_A.path);
+    expect(changes.at(-1)!.worktreeEnabled).toBe(false);
+    expect(toggle(form).checked).toBe(false);
+    expect(form.querySelector<HTMLElement>(".wt-body")!.hidden).toBe(true);
+  });
+
+  it("hides the worktree step again when the operator takes the raw-input hatch", async () => {
+    const form = await mount([MAESTRO, WT_A]);
+    box(form, MAESTRO.path).click();
+    await drain();
+    expect(step(form).hidden).toBe(false);
+
+    form.querySelector<HTMLButtonElement>(".project-other")!.click();
+    await drain();
+
+    expect(step(form).hidden).toBe(true);
+    expect(choices(form)).toEqual([]);
+    expect(form.querySelector(".project-box.is-active")).toBeNull();
+  });
+
+  it("restores the picked worktree from a draft seed", async () => {
+    urls = stubFetch([MAESTRO, WT_A, WT_B]);
+    handle = createSpawnForm({
+      onSuccess() {},
+      seed: { cwd: WT_A.path, cwdRawVisible: false, worktreeEnabled: false },
+    });
+    document.body.appendChild(handle.el);
+    await drain();
+    const form = handle.el;
+
+    expect(step(form).hidden).toBe(false);
+    expect(activeChoice(form)!.dataset.cwd).toBe(WT_A.path);
+    expect(box(form, MAESTRO.path).classList.contains("is-active")).toBe(true);
+    expect(toggle(form).checked).toBe(false);
+  });
+});