Module rules_dedup 

lean-ctx rules dedup — collapse duplicated lean-ctx guidance (#578).

A client should pay for lean-ctx rules exactly once per session. Older installs (and parent-directory walks in monorepos) left full rule copies in several auto-loaded files; doctor overhead detects the duplication, this command repairs it:

1. lean-ctx-OWNED dedicated rule files outside the canonical global location (project/parent .cursor/rules/lean-ctx.mdc, .claude/rules/lean-ctx.md, …) → deleted.
2. .cursorrules lean-ctx blocks → removed when the canonical global Cursor mdc exists (Cursor auto-loads both; pointer lives in AGENTS.md).
3. Stale compression blocks in .cursorrules → removed under the same condition (the global mdc carries the block).
4. Compression block in a shared AGENTS.md (#684) → removed (pointer kept) once every AGENTS.md reader is covered by its own canonical carrier; otherwise reported and left as the carrier.

Only lean-ctx-owned files and lean-ctx-marked blocks are ever touched. Unmarked user content is reported, never modified. Default is a dry-run report; --apply executes with .bak backups for partial edits.

Functions

auto_apply

Non-interactive auto-heal used by lean-ctx setup and doctor --fix (#578): applies every fixable dedup action (owned duplicates deleted, marked blocks stripped with .bak backups) and returns one result line per action. Report-only findings (user-maintained content) are never touched.

run

CLI entry: lean-ctx rules dedup [--apply].