Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/yarlson/yarstack/docs-drift-reviewnpx skills add yarlson/yarstack --skill docs-drift-reviewgit clone --depth 1 https://github.com/yarlson/yarstackWrote 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/yarlson/yarstack/docs-drift-review)<a href="https://agentmods.dev/skills/yarlson/yarstack/docs-drift-review"><img src="https://agentmods.dev/badge/skills/yarlson/yarstack/docs-drift-review.svg" alt="Measured on agentmods" 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 | $0.00034 | $0.00288 |
| Opus 5 | $0.00017 | $0.00144 |
| Sonnet 5 | $0.00007 | $0.00058 |
| Haiku 4.5 | $0.00003 | $0.00029 |
Grade A, and why
docs-drift-review 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 4d 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.
What it actually says
Documentation Drift Review
Own change-scoped documentation accuracy through separate inspection and repair stages.
Workflow
- Confirm the changed behavior and whether the task authorizes documentation edits or only a read-only drift report.
- Identify canonical, generated, mirrored, and external documentation describing the changed surface.
- Compare implementation with README files, instructions, APIs, schemas, operational docs, examples, templates, and command help in scope.
- Report concrete drift with the affected claim, implementation evidence, canonical owner, and required correction.
- When edits are authorized, update only directly affected canonical documents in their existing style.
- Change generated documentation or help at its source and regenerate it through the repository's established command.
- For authorized prose edits, use
text-improveon the final changed text without expanding the drift scope.
Use docs-review for broader documentation quality, repo-context-document for deliberate docs/context/ work, plan-update for plan mechanics, and spec-update for semantic contract decisions.
Do not restructure documentation, hand-edit generated content, change product behavior, or modify external documentation without authority.
Finish with changed documents, an evidenced no-change result, or unresolved owner decisions.
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.
- 4d ago First seen · 25 lines · 34 tokens per session scan A 3c6aa6636bf8
docs-drift-review is a skill published in the GitHub repository yarlson/yarstack (3 stars, last pushed 7d ago), licensed MIT. It adds 34 tokens to every session and 288 once invoked, about $0.0002 per session on Opus 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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