feat(maestro): support Codex structured TUI

crates/maestro-tui/src/app.rs

@@ -3053,17 +3053,19 @@ mod tests {
         let request = |view| CreateSessionRequest {
             view,
             cwd: std::path::PathBuf::from("/srv/work"),
-            command: "claude".into(),
+            command: "codex".into(),
             env: Default::default(),
             metadata: Default::default(),
             worktree: None,
         };
 
         let structured_id = Uuid::from_u128(188);
+        app.state.mode = Mode::Insert;
         app.submit_spawn(request(SessionView::Structured)).await;
         assert!(app.catalog.snapshot().sessions.is_empty());
         assert!(app.structured.contains_key(&structured_id));
         assert!(app.emulators.get(structured_id).is_none());
+        assert_eq!(app.state.mode, Mode::Normal);
 
         let terminal_id = Uuid::from_u128(187);
         app.submit_spawn(request(SessionView::Terminal)).await;

crates/maestro-tui/src/draft.rs

@@ -91,7 +91,7 @@ pub enum DraftField {
     /// Disclosure collapsing the optional view and worktree controls below.
     /// Closed by default; Enter / Space toggles.
     Advanced,
-    /// ACP-backed transcript instead of a terminal. Claude Code only.
+    /// ACP-backed transcript instead of a terminal. Claude Code or Codex.
     StructuredToggle,
     /// Worktree on/off for this session (#65). Enter / Space toggles.
     WorktreeToggle,
@@ -256,7 +256,7 @@ pub struct DraftPane {
     /// take the default target.
     pub advanced_collapsed: bool,
     /// ACP-backed structured transcript. Off by default and supported only
-    /// when the resolved command is Claude Code.
+    /// when the resolved command is Claude Code or Codex.
     pub structured_view: bool,
     /// Enclosing repository of the chosen target — from the project scan for
     /// picked rows, `/api/gitroot` for raw paths. `None` until known.
@@ -673,7 +673,7 @@ impl DraftPane {
     }
 
     fn supports_structured_view(&self) -> bool {
-        command_tool(self.command()) == Some("claude")
+        matches!(command_tool(self.command()), Some("claude" | "codex"))
     }
 
     fn clear_unsupported_structured_view(&mut self) {
@@ -1888,11 +1888,28 @@ mod tests {
     }
 
     #[test]
-    fn structured_view_is_default_off_and_only_visible_for_claude_code() {
+    fn structured_view_is_default_off_and_visible_for_supported_agents() {
         let mut draft = DraftPane {
             advanced_collapsed: false,
             ..DraftPane::default()
         };
+        draft.set_presets(vec![
+            SpawnPreset {
+                id: "claude".into(),
+                label: "Claude".into(),
+                command: "claude".into(),
+            },
+            SpawnPreset {
+                id: "codex".into(),
+                label: "Codex".into(),
+                command: "codex".into(),
+            },
+            SpawnPreset {
+                id: "opencode".into(),
+                label: "OpenCode".into(),
+                command: "opencode".into(),
+            },
+        ]);
         assert!(!draft.structured_view);
         assert!(draft.field_order().contains(&DraftField::StructuredToggle));
         let rendered = render_to_string(100, 24, |f| draft.render(f, f.area(), true));
@@ -1901,6 +1918,12 @@ mod tests {
         draft.toggle_structured_view();
         assert!(draft.structured_view);
         draft.cycle_preset(1);
+        assert_eq!(draft.command(), "codex");
+        assert!(
+            draft.structured_view,
+            "Codex keeps the structured selection"
+        );
+        draft.cycle_preset(1);
         assert_eq!(draft.command(), "opencode");
         assert!(
             !draft.structured_view,
@@ -1928,9 +1951,9 @@ mod tests {
 
     /// A custom command typed into the free-text field, run through the same
     /// resolver the daemon/web gate uses (`command_tool`, #199): a path, an
-    /// env prefix, or a wrapper still resolves to Claude, so the toggle stays
-    /// offered and the request carries `Structured`; an unrelated program
-    /// does not.
+    /// env prefix, or a wrapper still resolves to Claude Code or Codex, so
+    /// the toggle stays offered and the request carries `Structured`; an
+    /// unrelated program does not.
     #[test]
     fn structured_view_follows_command_resolution_for_custom_commands() {
         let cases: &[(&str, bool)] = &[
@@ -1952,6 +1975,16 @@ mod tests {
             ("yarn --silent dlx claude-code", true),
             ("bun x claude-code", true),
             ("\"/opt/my agent/claude\" --resume", true),
+            ("codex", true),
+            ("codex --full-auto", true),
+            ("CODEX=1 codex", true),
+            ("/usr/local/bin/codex exec", true),
+            ("npx codex", true),
+            ("sudo -u root codex", true),
+            ("env -i codex", true),
+            ("command codex", true),
+            ("pnpm --silent dlx codex", true),
+            ("\"/opt/my agent/codex\" exec", true),
             ("bash", false),
             ("opencode", false),
             ("/usr/local/bin/bash -l", false),
@@ -1999,7 +2032,7 @@ mod tests {
 
     /// A configured preset (the spawn-form "alias" for a command) is gated
     /// the same way as free text: a preset whose command resolves to Claude
-    /// through a wrapper still offers structured view.
+    /// Code or Codex through a wrapper still offers structured view.
     #[test]
     fn structured_view_follows_command_resolution_for_presets() {
         let mut draft = DraftPane {
@@ -2014,6 +2047,11 @@ mod tests {
                 label: "Claude (npx)".into(),
                 command: "npx claude-code --resume".into(),
             },
+            SpawnPreset {
+                id: "codex-wrapped".into(),
+                label: "Codex (npx)".into(),
+                command: "npx codex exec".into(),
+            },
             SpawnPreset {
                 id: "aider".into(),
                 label: "Aider".into(),
@@ -2027,7 +2065,13 @@ mod tests {
         assert!(draft.structured_view);
         assert_eq!(draft.build_request().unwrap().view, SessionView::Structured);
 
-        // Switching to a preset that does not resolve to Claude clears the
+        // Switching between supported presets preserves the selection.
+        draft.cycle_preset(1);
+        assert_eq!(draft.command(), "npx codex exec");
+        assert!(draft.structured_view);
+        assert_eq!(draft.build_request().unwrap().view, SessionView::Structured);
+
+        // Switching to a preset that does not resolve to an ACP agent clears the
         // stale selection instead of letting an invalid request through.
         draft.cycle_preset(1);
         assert_eq!(draft.command(), "aider");
@@ -2036,11 +2080,11 @@ mod tests {
         assert_eq!(draft.build_request().unwrap().view, SessionView::Terminal);
     }
 
-    /// Editing the custom-command text away from Claude clears an armed
+    /// Editing the custom-command text away from a supported agent clears an armed
     /// selection immediately, matching the preset-switch case above — an
     /// invalid `Structured` request can never reach `build_request`.
     #[test]
-    fn structured_view_clears_when_custom_command_edited_away_from_claude() {
+    fn structured_view_clears_when_custom_command_edited_away_from_supported_agent() {
         let mut draft = DraftPane {
             picked_cwd: Some(PathBuf::from("/srv/work")),
             worktree_enabled: false,
@@ -2049,22 +2093,22 @@ mod tests {
             ..DraftPane::default()
         };
         draft.selected_preset = draft.presets.len() - 1;
-        draft.custom_command = crate::text_input::TextInput::with_value("claude");
+        draft.custom_command = crate::text_input::TextInput::with_value("codex");
         draft.toggle_structured_view();
         assert!(draft.structured_view);
 
         typed(&mut draft, " -p");
-        assert_eq!(draft.command(), "claude -p");
-        assert!(draft.structured_view, "still Claude, selection survives");
+        assert_eq!(draft.command(), "codex -p");
+        assert!(draft.structured_view, "still Codex, selection survives");
 
-        for _ in 0.."claude -p".chars().count() {
+        for _ in 0.."codex -p".chars().count() {
             draft.on_input(&InputKey::Backspace);
         }
         typed(&mut draft, "bash");
         assert_eq!(draft.command(), "bash");
         assert!(
             !draft.structured_view,
-            "editing the program away from claude clears the stale selection"
+            "editing the program away from Codex clears the stale selection"
         );
         assert_eq!(draft.build_request().unwrap().view, SessionView::Terminal);
     }

docs/STRUCTURED-VIEW.md

@@ -38,8 +38,8 @@ ACP handle instead of a tmux pane).
 ## The adapter
 
 The resolved structured command selects a provider adapter. Its binary is
-resolved by walking the session's `PATH` (when set on the spawn request), then
-the daemon's `PATH`, and taking the first executable with that name.
+resolved by walking the session's `PATH` when the spawn request sets one, or
+the daemon's `PATH` otherwise, and taking the first executable with that name.
 
 | Command | Adapter binary | Install command | Provider detail |
 | --- | --- | --- | --- |

web/src/spawnForm.test.ts

@@ -26,15 +26,21 @@ describe("buildSpawnRequest", () => {
     expect(res).toEqual({ req: { cwd: base.cwd, command: base.command, metadata: {} } });
   });
 
-  it("requests structured view only for Claude Code", () => {
-    expect(buildSpawnRequest({ ...base, structuredView: true }, null)).toEqual({
-      req: {
-        cwd: base.cwd,
-        command: "claude",
-        metadata: { name: "amber-fox" },
-        view: "Structured",
-      },
-    });
+  it.each(["claude", "FOO=1 /usr/local/bin/codex", "env -i codex"])(
+    "requests structured view for resolved %s commands",
+    (command) => {
+      expect(buildSpawnRequest({ ...base, command, structuredView: true }, null)).toEqual({
+        req: {
+          cwd: base.cwd,
+          command,
+          metadata: { name: "amber-fox" },
+          view: "Structured",
+        },
+      });
+    },
+  );
+
+  it("does not request structured view for unsupported commands", () => {
     expect(
       buildSpawnRequest({ ...base, command: "opencode", structuredView: true }, null),
     ).toEqual({

web/src/spawnForm.ts

@@ -15,6 +15,13 @@ import { splitCommand } from "./toolIcon.js";
 import { abbreviateCwd } from "./types.js";
 import type { BranchInfo, CreateSessionRequest, Project, Session, SpawnPreset } from "./types.js";
 
+const STRUCTURED_VIEW_TOOLS = new Set(["claude", "codex"]);
+
+function supportsStructuredView(command: string): boolean {
+  const tool = splitCommand(command).tool;
+  return tool !== null && STRUCTURED_VIEW_TOOLS.has(tool);
+}
+
 /** Where a worktree's branch comes from: freshly created (default) or picked
  * from the repository's existing branches (#61). */
 export type WorktreeBranchMode = "new" | "existing";
@@ -68,7 +75,7 @@ export function buildSpawnRequest(
     metadata,
   };
 
-  if (values.structuredView && splitCommand(values.command).tool === "claude") {
+  if (values.structuredView && supportsStructuredView(values.command)) {
     req.view = "Structured";
   }
 
@@ -369,7 +376,7 @@ export function createSpawnForm(opts: SpawnFormOptions): SpawnFormHandle {
   let commandTouched = false;
 
   function updateStructuredAvailability(): void {
-    const supported = splitCommand(command).tool === "claude";
+    const supported = supportsStructuredView(command);
     structuredWrap.hidden = !supported;
     if (!supported) structuredView.checked = false;
   }

web/src/spawnFormStructured.test.ts

@@ -44,7 +44,7 @@ describe("spawn form structured view", () => {
     vi.unstubAllGlobals();
   });
 
-  it("is default-off and shown only for the resolved Claude Code command", async () => {
+  it("is default-off and shown for resolved Claude Code and Codex commands", async () => {
     stubApi();
     handle = createSpawnForm({ onSuccess() {} });
     document.body.appendChild(handle.el);
@@ -59,26 +59,33 @@ describe("spawn form structured view", () => {
     expect(wrap.hidden).toBe(false);
     expect(checkbox.checked).toBe(false);
 
-    handle.el.querySelector<HTMLButtonElement>('[data-id="opencode"]')!.click();
-    expect(wrap.hidden).toBe(true);
-
-    handle.el.querySelector<HTMLButtonElement>('[data-id="claude"]')!.click();
+    const custom = handle.el.querySelector<HTMLButtonElement>('[data-id="custom"]')!;
+    custom.click();
+    const command = handle.el.querySelector<HTMLInputElement>(".cmd-raw")!;
+    command.value = "FOO=1 /usr/local/bin/codex";
+    command.dispatchEvent(new Event("input"));
     expect(wrap.hidden).toBe(false);
+
+    command.value = "opencode";
+    command.dispatchEvent(new Event("input"));
+    expect(wrap.hidden).toBe(true);
   });
 
-  it("clears a checked value when the command changes away from Claude Code", async () => {
+  it("clears a checked value when Codex changes to an unsupported command", async () => {
     stubApi();
     handle = createSpawnForm({ onSuccess() {} });
     document.body.appendChild(handle.el);
     await drain();
 
+    handle.el.querySelector<HTMLButtonElement>('[data-id="custom"]')!.click();
+    const command = handle.el.querySelector<HTMLInputElement>(".cmd-raw")!;
+    command.value = "env -i codex";
+    command.dispatchEvent(new Event("input"));
+
     const checkbox = handle.el.querySelector<HTMLInputElement>("input[name=structured_view]")!;
     checkbox.click();
     expect(checkbox.checked).toBe(true);
 
-    const custom = handle.el.querySelector<HTMLButtonElement>('[data-id="custom"]')!;
-    custom.click();
-    const command = handle.el.querySelector<HTMLInputElement>(".cmd-raw")!;
     command.value = "opencode";
     command.dispatchEvent(new Event("input"));
 
@@ -86,7 +93,7 @@ describe("spawn form structured view", () => {
     expect(checkbox.checked).toBe(false);
   });
 
-  it("emits Structured in the submitted request when selected", async () => {
+  it.each(["claude", "codex"])("emits Structured for a selected %s command", async (tool) => {
     const requests = stubApi();
     handle = createSpawnForm({
       seed: { cwd: "/srv/work", cwdRawVisible: true, worktreeEnabled: false },
@@ -95,13 +102,20 @@ describe("spawn form structured view", () => {
     document.body.appendChild(handle.el);
     await drain();
 
+    if (tool === "codex") {
+      handle.el.querySelector<HTMLButtonElement>('[data-id="custom"]')!.click();
+      const command = handle.el.querySelector<HTMLInputElement>(".cmd-raw")!;
+      command.value = "codex";
+      command.dispatchEvent(new Event("input"));
+    }
+
     handle.el.querySelector<HTMLInputElement>("input[name=structured_view]")!.click();
     handle.el.requestSubmit();
     await drain();
 
     expect(requests).toHaveLength(1);
     expect(JSON.parse(String(requests[0].body))).toMatchObject({
-      command: "claude",
+      command: tool,
       view: "Structured",
     });
   });