Registry indexed
Incremental skill updater that maps git diffs to affected skills and optionally auto-syncs via a post-commit hook
Incremental skill updater that maps git diffs to affected skills and optionally auto-syncs via a post-commit hook
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You are working on doc-sync, the incremental skill update command (aspens doc sync).
getGitRoot(repoPath) resolves the actual git root. projectPrefix (toGitRelative) computes the subdirectory offset. scopeProjectFiles() filters changed files to the project subdirectory. Diffs are fetched from gitRoot but file paths are project-relative.configuredTargets() reads .aspens.json for all configured targets. chooseSyncSourceTarget() picks the best source (prefers Claude if both exist). LLM generates for the source target; publishFilesForTargets() transforms output for all other configured targets. graphSerialized and repoPath are passed through to the transform context for conditional architecture references and disk-based instructions file loading.runLLM() from runner.js dispatches to runClaude() or runCodex() based on config.backend (defaults to source target's id).git diff HEAD~N..HEAD from git root, scopes changed files to project prefix, then feeds diff plus existing skill contents and graph context to the selected backend.isNoOpDiff() from diff-classifier.js skips the LLM call entirely on lockfile-only diffs and diffs touching zero code-bearing files. LOCK_FILES and CODE_BEARING_EXTS are the source of truth — extend them here, not at call sites.{ skillsDir, skillFilename, instructionsFile, configDir } from source target to loadPrompt() for path substitution in prompts.--refresh): Skips diff entirely. Reviews every skill against the current codebase. Base skill refreshed first, then domain skills in parallel batches of PARALLEL_LIMIT (3). Also refreshes instructions file and reports uncovered domains. Refresh mode runs ensureRootKeyFilesSection (legacy stripper) before syncSkillsSection so any leftover ## Key Files blocks from old docs are removed.repairDeterministicSections() runs a no-LLM pass that re-injects ## Skills and ## Behavior into the root instructions file from on-disk state and strips any legacy ## Key Files block via ensureRootKeyFilesSection. Called from the no-op / "up to date" sync paths so missing-section drift is fixed every invocation. The normal sync flow also runs the same Skills + Behavior + legacy-strip block on the canonical instructions file after the LLM step.buildRepoGraph + persistGraphArtifacts (with source target) to keep graph fresh. graphSerialized return value is captured and forwarded to publishFilesForTargets for conditional Codex architecture refs. Graph failure is non-fatal.notifyLegacyHubBlockIfPresent() surfaces a one-line notice on the first sync after upgrade when CLAUDE.md/AGENTS.md still carries the legacy ## Key Files hub-counts block, so the diff that strips it isn't alarming. regenerateStaleCodeMap() force-rebuilds .claude/code-map.md on no-op syncs when it still carries the legacy **Hub files** block.<file> tags, treats it as "no updates needed" with a verbose-only warning. The prompt explicitly requests an empty response when nothing needs updating.mapChangesToSkills() checks direct file matches via fileMatchesActivation() (from skill-reader.js) and also whether changed files are imported by files matching a skill's activation block.buildPrioritizedDiff() gives skill-relevant files 60k char budget, everything else 20k (80k total). Cuts at diff --git boundaries..claude/, CLAUDE.md, root AGENTS.md) use writeSkillFiles(). Directory-scoped AGENTS.md files (e.g. src/AGENTS.md) use writeTransformedFiles().skill-rules.json via extractRulesFromSkills() — only for targets with supportsHooks: true (Claude). Uses hookTarget from publish targets list.findExistingSkills is target-aware: Uses target.skillsDir and target.skillFilename to locate skills for any target.installGitHook() installs at the git root with per-project scoping. Hook uses PROJECT_PATH derived from project-relative offset. Each subproject gets its own labeled hook block (# >>> aspens doc-sync hook (label) >>>) with a unique function name (__aspens_doc_sync_<slug>). Multiple subprojects can coexist in one post-commit hook. Hook skips aspens-only commits scoped to the project prefix. 5-minute per-project cooldown via /tmp/aspens-sync-<hash>.lock; logs to /tmp/aspens-sync-<hash>.log (truncated to last 100 lines past 200). Unlabeled v0.6-era blocks are auto-upgraded on re-install.writeSkillFiles with force: true.runLLM is called with allowedTools: ['Read', 'Glob', 'Grep'] — doc-sync must never grant write tools.parseOutput restricts paths based on getAllowedPaths([sourceTarget]) — paths outside the allowed set are silently dropped.<file> tags, doc-sync logs a verbose warning and treats it as "no updates needed" instead of throwing.getGitDiff gracefully falls back from N commits to 1 if fewer available. actualCommits tracks what was used.CliError if the source target's skills directory doesn't exist.checkMissingHooks() in bin/cli.js only checks for Claude skills (not Codex — Codex doesn't use hooks).dedupeFiles() ensures no duplicate paths when publishing across multiple targets.gitRoot — diffs, logs, and changed files are fetched from git root, not repoPath. File paths are then scoped via projectPrefix.diff-classifier.js is a leaf module — graph-builder.js imports LOCK_FILES from it; never import from graph-builder back into the classifier.src/lib/skill-reader.js — GENERIC_PATH_SEGMENTS, fileMatchesActivation(), getActivationBlock()Last Updated: 2026-05-11
name: doc-sync
description: Incremental skill updater that maps git diffs to affected skills and optionally auto-syncs via a post-commit hook
triggers:
files:
- src/commands/doc-sync.js
- src/lib/diff-classifier.js
- src/lib/diff-helpers.js
- src/lib/git-hook.js
- src/lib/git-helpers.js
- src/prompts/doc-sync.md
- src/prompts/doc-sync-refresh.md
- src/prompts/partials/preservation-contract-refresh.md
keywords:
- doc sync
- doc-sync
- refresh
- post-commit hook
- install-hook
- diff classifier
- changetype filter---
name: doc-sync
description: Incremental skill updater that maps git diffs to affected skills and optionally auto-syncs via a post-commit hook
triggers:
files:
- src/commands/doc-sync.js
- src/lib/diff-classifier.js
- src/lib/diff-helpers.js
- src/lib/git-hook.js
- src/lib/git-helpers.js
- src/prompts/doc-sync.md
- src/prompts/doc-sync-refresh.md
- src/prompts/partials/preservation-contract-refresh.md
keywords:
- doc sync
- doc-sync
- refresh
- post-commit hook
- install-hook
- diff classifier
- changetype filter
---
You are working on **doc-sync**, the incremental skill update command (`aspens doc sync`).
## Key Concepts
- **Monorepo-aware:** `getGitRoot(repoPath)` resolves the actual git root. `projectPrefix` (`toGitRelative`) computes the subdirectory offset. `scopeProjectFiles()` filters changed files to the project subdirectory. Diffs are fetched from `gitRoot` but file paths are project-relative.
- **Multi-target publish:** `configuredTargets()` reads `.aspens.json` for all configured targets. `chooseSyncSourceTarget()` picks the best source (prefers Claude if both exist). LLM generates for the source target; `publishFilesForTargets()` transforms output for all other configured targets. `graphSerialized` and `repoPath` are passed through to the transform context for conditional architecture references and disk-based instructions file loading.
- **Backend routing:** `runLLM()` from `runner.js` dispatches to `runClaude()` or `runCodex()` based on `config.backend` (defaults to source target's id).
- **Diff-based flow:** Gets `git diff HEAD~N..HEAD` from git root, scopes changed files to project prefix, then feeds diff plus existing skill contents and graph context to the selected backend.
- **Changetype filter (Phase 1):** `isNoOpDiff()` from `diff-classifier.js` skips the LLM call entirely on lockfile-only diffs and diffs touching zero code-bearing files. `LOCK_FILES` and `CODE_BEARING_EXTS` are the source of truth — extend them here, not at call sites.
- **Prompt path variables:** Passes `{ skillsDir, skillFilename, instructionsFile, configDir }` from source target to `loadPrompt()` for path substitution in prompts.
- **Refresh mode (`--refresh`):** Skips diff entirely. Reviews every skill against the current codebase. Base skill refreshed first, then domain skills in parallel batches of `PARALLEL_LIMIT` (3). Also refreshes instructions file and reports uncovered domains. Refresh mode runs `ensureRootKeyFilesSection` (legacy stripper) before `syncSkillsSection` so any leftover `## Key Files` blocks from old docs are removed.
- **Deterministic section repair:** `repairDeterministicSections()` runs a no-LLM pass that re-injects `## Skills` and `## Behavior` into the root instructions file from on-disk state and strips any legacy `## Key Files` block via `ensureRootKeyFilesSection`. Called from the no-op / "up to date" sync paths so missing-section drift is fixed every invocation. The normal sync flow also runs the same Skills + Behavior + legacy-strip block on the canonical instructions file after the LLM step.
- **Graph rebuild on every sync:** Calls `buildRepoGraph` + `persistGraphArtifacts` (with source target) to keep graph fresh. `graphSerialized` return value is captured and forwarded to `publishFilesForTargets` for conditional Codex architecture refs. Graph failure is non-fatal.
- **Legacy v0.7 hub-block cleanup:** `notifyLegacyHubBlockIfPresent()` surfaces a one-line notice on the first sync after upgrade when `CLAUDE.md`/`AGENTS.md` still carries the legacy `## Key Files` hub-counts block, so the diff that strips it isn't alarming. `regenerateStaleCodeMap()` force-rebuilds `.claude/code-map.md` on no-op syncs when it still carries the legacy `**Hub files**` block.
- **Graceful response handling:** After LLM returns, if output has content but no `<file>` tags, treats it as "no updates needed" with a verbose-only warning. The prompt explicitly requests an empty response when nothing needs updating.
- **Graph-aware skill mapping:** `mapChangesToSkills()` checks direct file matches via `fileMatchesActivation()` (from `skill-reader.js`) and also whether changed files are imported by files matching a skill's activation block.
- **Interactive file picker:** When diff exceeds 80k chars and TTY is available, offers multiselect with skill-relevant files pre-selected.
- **Prioritized diff:** `buildPrioritizedDiff()` gives skill-relevant files 60k char budget, everything else 20k (80k total). Cuts at `diff --git` boundaries.
- **Token optimization:** Affected skills sent in full; non-affected skills send only path + description line.
- **Split writes:** Direct-write files (`.claude/`, `CLAUDE.md`, root `AGENTS.md`) use `writeSkillFiles()`. Directory-scoped `AGENTS.md` files (e.g. `src/AGENTS.md`) use `writeTransformedFiles()`.
- **Skill-rules regeneration:** After writing, regenerates `skill-rules.json` via `extractRulesFromSkills()` — only for targets with `supportsHooks: true` (Claude). Uses `hookTarget` from publish targets list.
- **`findExistingSkills` is target-aware:** Uses `target.skillsDir` and `target.skillFilename` to locate skills for any target.
- **Git hook (monorepo-aware):** `installGitHook()` installs at the git root with per-project scoping. Hook uses `PROJECT_PATH` derived from project-relative offset. Each subproject gets its own labeled hook block (`# >>> aspens doc-sync hook (label) >>>`) with a unique function name (`__aspens_doc_sync_<slug>`). Multiple subprojects can coexist in one post-commit hook. Hook skips aspens-only commits scoped to the project prefix. 5-minute per-project cooldown via `/tmp/aspens-sync-<hash>.lock`; logs to `/tmp/aspens-sync-<hash>.log` (truncated to last 100 lines past 200). Unlabeled v0.6-era blocks are auto-upgraded on re-install.
- **Force writes:** doc-sync always calls `writeSkillFiles` with `force: true`.
## Critical Rules
- `runLLM` is called with `allowedTools: ['Read', 'Glob', 'Grep']` — doc-sync must never grant write tools.
- `parseOutput` restricts paths based on `getAllowedPaths([sourceTarget])` — paths outside the allowed set are silently dropped.
- **Unparseable output is a soft warning** — if LLM returns text without any `<file>` tags, doc-sync logs a verbose warning and treats it as "no updates needed" instead of throwing.
- `getGitDiff` gracefully falls back from N commits to 1 if fewer available. `actualCommits` tracks what was used.
- The command exits early with `CliError` if the source target's skills directory doesn't exist.
- `checkMissingHooks()` in `bin/cli.js` only checks for Claude skills (not Codex — Codex doesn't use hooks).
- `dedupeFiles()` ensures no duplicate paths when publishing across multiple targets.
- **Git operations use `gitRoot`** — diffs, logs, and changed files are fetched from git root, not `repoPath`. File paths are then scoped via `projectPrefix`.
- **`diff-classifier.js` is a leaf module** — `graph-builder.js` imports `LOCK_FILES` from it; never import from `graph-builder` back into the classifier.
## References
- **Patterns:** `src/lib/skill-reader.js` — `GENERIC_PATH_SEGMENTS`, `fileMatchesActivation()`, `getActivationBlock()`
---
**Last Updated:** 2026-05-11
Source needs review
The tracked source changed or could not be synchronized. Review the current source before installing.
Review before install: Avoid automatic install
Listed tools are metadata hints, not tested compatibility. Agent prompts are suggested handoffs.
Check the source for dependencies, API keys and third-party costs. A public repository does not mean every service is free.
Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.
Version reported in registry metadata; check source releases before relying on it.
Quality
66/100
Promising
Trust
57/100
Do not auto-install
Audit
74/100
Needs review
This page exposes the same decision, trust, audit, use-case, and install signals through the Registry API, so agents can rank this skill without scraping the UI.
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