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 skills add Notysoty/openagentskills --skill documentation-gap-findergit clone --depth 1 https://github.com/Notysoty/openagentskillsWrote 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/notysoty/openagentskills/documentation-gap-finder)<a href="https://agentmods.dev/skills/notysoty/openagentskills/documentation-gap-finder"><img src="https://agentmods.dev/badge/skills/notysoty/openagentskills/documentation-gap-finder/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/notysoty/openagentskills/documentation-gap-finder"><img src="https://agentmods.dev/badge/skills/notysoty/openagentskills/documentation-gap-finder.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 | $0.00024 | $0.01568 |
| Opus 5 | $0.00012 | $0.00784 |
| Sonnet 5 | $0.00005 | $0.00314 |
| Haiku 4.5 | $0.00002 | $0.00157 |
Grade A, and why
Documentation Gap Finder 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 9d 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 — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Documentation Gap Finder
What this skill does
This skill directs the agent to audit a codebase or documentation directory and produce a comprehensive list of documentation gaps. It checks for missing docstrings, undocumented exports, README files that don't match the current code, stale setup instructions, and any public API surface that lacks documentation. The output is a prioritized gap list that tells you exactly what to write and in what order.
Use this when preparing for a new developer joining the team, before an open-source launch, when onboarding is taking too long, or as part of a quarterly documentation review.
How to use
Claude Code / Cline
Copy this file to .agents/skills/documentation-gap-finder/SKILL.md in your project root.
Then ask:
- "Use the Documentation Gap Finder skill on the entire repo."
- "Audit the documentation for
src/api/using the Documentation Gap Finder skill." - "Use the Documentation Gap Finder skill — I want to know what a new developer would struggle to find."
Cursor
Add the instructions below to your .cursorrules or paste them into the Cursor AI pane before asking for the audit.
Codex
Provide the directory tree and key files. Ask Codex to follow the instructions below to produce the gap report.
The Prompt / Instructions for the Agent
When asked to audit documentation, follow these steps:
Step 1 — Establish scope
Determine what to audit:
- If given a specific directory, focus there
- If given the whole repo, check: root-level docs,
docs/orwiki/folder,README.md, all public API surfaces, and configuration files - Identify the audience: internal developers, external API consumers, end users, or all three
Step 2 — Audit each documentation type
README / Project-level docs
- Does a
README.mdexist at the project root? - Does it cover: what the project does, how to set it up, how to run it locally, how to run tests, how to deploy, how to contribute?
- Are the setup instructions still accurate? Check against
package.json,Dockerfile, or equivalent. - Are any listed commands or URLs broken or outdated?
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.
- 9d ago First seen · 179 lines · 24 tokens per session scan A c5e7e6b44a8c
Documentation Gap Finder is a skill published in the GitHub repository Notysoty/openagentskills (9 stars, last pushed 25d ago), licensed MIT. It adds 24 tokens to every session and 1,568 once invoked, about $0.0001 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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