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comms-lint.py and comment-lint.py lived only in ~/.claude, which is not a git repo. Contract prose lived in ~/.claude/CLAUDE.md. Neither survived a machine rebuild. Prose moves to claude-md/ fragments, imported via @name.md. Linters move to hooks/. link.sh and home.nix distribute both. settings.json wiring stays manual — it holds machine-local MCP/statusline config this repo must not own. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01VaGR6ERGCfzWTtuv2rebGe
hooks
Claude Code hooks. Claude-only — Codex ignores. bin/link.sh / nix/home.nix symlink these into ~/.claude/hooks/; wiring is manual, see below.
| hook | event | what |
|---|---|---|
comms-lint.py |
PreToolUse / Bash |
Gates gh issue|pr create|edit|comment|review. Lints body against claude-md/public-comms.md (BLUF, ≤300 words above fold, ≤4 bold spans, no essay headings, table for 3+ options). Exit 2 blocks, stderr becomes feedback. |
comment-lint.py |
PostToolUse / Write|Edit|MultiEdit |
Lints newly-added comment lines in code files against claude-md/code-comments.md. Exit 2 = revise nudge (edit already applied). Long-comment-run finding is advisory, delivered via additionalContext. |
Both fail open on anything they can't parse. Debug with COMMS_LINT_DEBUG=1 / COMMENT_LINT_DEBUG=1.
Wiring
~/.claude/settings.json is machine-local (MCP servers, statusline, per-box hooks), so this repo does not own it. Merge into .hooks:
{
"hooks": {
"PreToolUse": [
{ "matcher": "Bash",
"hooks": [{ "type": "command", "command": "~/.claude/hooks/comms-lint.py" }] }
],
"PostToolUse": [
{ "matcher": "Write|Edit|MultiEdit",
"hooks": [{ "type": "command", "command": "~/.claude/hooks/comment-lint.py" }] }
]
}
}
Contract prose lives in claude-md/, linked to ~/.claude/<name>.md and imported from ~/.claude/CLAUDE.md via @public-comms.md / @code-comments.md. Both linters cite those paths in their block message — moving a fragment means updating the linter string too.
Testing a hook
Feed it the payload shape Claude Code sends:
echo '{"tool_name":"Bash","tool_input":{"command":"gh pr comment 1 --body \"short\""}}' \
| ~/.claude/hooks/comms-lint.py; echo "exit=$?"