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/rjmurillo/ai-agents/codebase-documenternpx skills add rjmurillo/ai-agents --skill codebase-documentergit clone --depth 1 https://github.com/rjmurillo/ai-agentsWrote 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/rjmurillo/ai-agents/codebase-documenter)<a href="https://agentmods.dev/skills/rjmurillo/ai-agents/codebase-documenter"><img src="https://agentmods.dev/badge/skills/rjmurillo/ai-agents/codebase-documenter.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 5.1 | $0.00045 | $0.01034 |
| Opus 5 | $0.00023 | $0.00517 |
| Sonnet 5 | $0.00009 | $0.00207 |
| Haiku 4.5 | $0.00005 | $0.00103 |
Grade A, and why
codebase-documenter 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 2d 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 — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Codebase Documenter
Generate documentation scaffolding for a project that has none, or has the wrong shape. This skill produces structured starters with bracketed placeholders the team fills in. It does not write prose for you.
Triggers
| Trigger Phrase | Operation |
|---|---|
scaffold project documentation |
Generate README, ARCHITECTURE, API, code comment scaffolds |
bootstrap docs for new codebase |
Produce starter docs with placeholders |
add starter README |
Create README scaffold only |
set up documentation standards |
Drop standards references into the repo |
document this codebase from scratch |
Full scaffold pass |
When to Use
Use this skill when:
- A repository has no
README.md,ARCHITECTURE.md, or API reference, and you need a populated skeleton. - A team is onboarding without a tech writer and wants documented standards alongside the templates.
- You need a starting point for code-comment conventions in a polyglot project.
Use a different skill when:
- Documentation already exists and you want to verify accuracy, detect missing XML docs / docstrings / JSDoc, or audit README / CLAUDE.md drift. Use
doc-accuracyfor verification, missing-doc detection, and structural sync. - You want narrative prose generated for an existing component. Use the
explaineragent.
Boundaries
- Writes scaffolding and standards references only. Does not write narrative prose for the project.
- Placeholders use bracket convention
[Like this]so a writer can search and replace. - Templates must be filled in by a human or downstream skill. The skill does not infer project specifics.
Process
- Confirm the target directory and confirm no overwrite of existing docs without explicit user consent.
- Copy
assets/templates/README.template.mdtoREADME.md(or path the user requests). - Copy
assets/templates/ARCHITECTURE.template.mdtoARCHITECTURE.mdif a separate architecture doc is wanted. - Create parent directories (
docs/,docs/standards/, or any user-requested path) before any copy step that targets them. - Copy
assets/templates/API.template.mdtodocs/API.md(or equivalent) if the project exposes an API. - Copy
assets/templates/CODE_COMMENTS.template.mdtodocs/standards/CODE_COMMENTS.md(or link from the README). - Point the team at
references/documentation_guidelines.mdandreferences/visual_aids_guide.mdfor voice and visual standards.
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 2d ago First seen · 91 lines · 45 tokens per session scan A f94be5947e11
codebase-documenter is a skill published in the GitHub repository rjmurillo/ai-agents (45 stars, last pushed today), licensed MIT. It adds 45 tokens to every session and 1,034 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 2026-09-03.
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