Borrowing it
Nothing to install: this file belongs to SioYooo/RepoGrammar. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/SioYooo/RepoGrammar/main/.agents/skills/documentation-sync/SKILL.mdgit clone --depth 1 https://github.com/SioYooo/RepoGrammarWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/sioyooo/repogrammar/documentation-sync)<a href="https://agentmods.dev/skills/sioyooo/repogrammar/documentation-sync"><img src="https://agentmods.dev/badge/skills/sioyooo/repogrammar/documentation-sync/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/sioyooo/repogrammar/documentation-sync"><img src="https://agentmods.dev/badge/skills/sioyooo/repogrammar/documentation-sync.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00031 | $0.00629 |
| Opus 5.5 | $0.00012 | $0.00252 |
| Sonnet 5.5 | $0.00006 | $0.00126 |
| Haiku 4.5 | $0.00003 | $0.00063 |
Grade A, and why
documentation-sync scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Purpose
Keep implementation, canonical documentation, skills, memories, and mirrored agent guides synchronized.
Trigger conditions
Use when touching src/, docs/, .agents/skills/, .agents/memories/,
AGENTS.md, CLAUDE.md, README, CHANGELOG, or CI policy.
Required reading
docs/README.mddocs/development/documentation-policy.mddocs/architecture/module-map.md.agents/memories/README.md
Preconditions
- Identify the canonical source for the changed topic.
- Check whether the change makes a memory stale.
Step-by-step procedure
- Update the canonical document first.
- Update dependent references only where needed.
- Keep requirements duplicated in multiple places byte- or meaning-consistent.
- If either root guide changes, run guide sync immediately.
- Validate relative links by inspection for every changed Markdown file.
- Run repository guard.
Required verification
cargo run --quiet --bin repo-guard -- check
cmp -s AGENTS.md CLAUDE.md
Documentation updates
Follow this minimum matrix:
| Code range | Required document |
|---|---|
src/rust/core/model/ |
docs/specifications/domain-model.md |
src/rust/core/mining/ |
docs/specifications/indexing-pipeline.md |
src/rust/core/policy/ |
domain model, product spec, or related ADR |
src/rust/ports/ |
dependency rules and related specification |
src/rust/adapters/parsing/ |
indexing pipeline and dependency rules |
src/rust/adapters/languages/ |
indexing pipeline and roadmap |
src/rust/adapters/semantic_workers/ |
semantic worker specification and ADR-0004 |
src/rust/adapters/frameworks/ |
indexing pipeline and roadmap |
src/rust/adapters/persistence/ |
storage specification and related ADR |
src/rust/application/ |
architecture overview, module map, and relevant specification |
src/rust/interfaces/cli/ |
README and CLI specification |
src/rust/interfaces/mcp/ |
docs/specifications/mcp-api.md |
src/rust/bin/repo_guard.rs |
docs/development/repository-guard.md |
src/workers/ |
semantic worker specification |
src/protocol/ |
semantic worker specification |
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 79 lines · 31 tokens per session scan A a10ace1e528a
documentation-sync is a skill published in the GitHub repository SioYooo/RepoGrammar (0 stars, last pushed yesterday), licensed MIT. It adds 31 tokens to every session and 629 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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