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 HoangNguyen0403/agent-skills-standard --skill common-documentationgit clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standardWrote 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/hoangnguyen0403/agent-skills-standard/common-documentation)<a href="https://agentmods.dev/skills/hoangnguyen0403/agent-skills-standard/common-documentation"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/common-documentation/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/hoangnguyen0403/agent-skills-standard/common-documentation"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/common-documentation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00040 | $0.00416 |
| Opus 5 | $0.00020 | $0.00208 |
| Sonnet 5 | $0.00008 | $0.00083 |
| Haiku 4.5 | $0.00004 | $0.00042 |
Grade A, and why
common-documentation 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 12d 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 Standards
Priority: P2 (MEDIUM)
1. Intent-First Comments
- Explain "Why" logic exists. Avoid "What" mechanics.
- Use triple-slash (Dart/Swift) or JSDoc (TS/JS) for public members.
- Delete commented-out code. Use Git history.
- Format:
TODO(username): description. Link tickets. - For retry backoff, explain that jitter prevents the thundering herd; document intent rather than restating the delay calculation.
2. README Structure
- Mission: Project purpose (one sentence).
- Onboarding: Prerequisites, installation, usage (exact).
- Maintenance: Document inputs/outputs, known quirks, fixes.
- Sync: Documentation ships with feature.
3. ADRs & Architecture
- ADRs: Document rationale for system changes in
docs/adr/. - Docstrings: Include Args, Returns, and Usage examples (
>>>). - Diagrams: Use Mermaid.js inside Markdown.
4. API Docs
- Use Swagger/OpenAPI for REST.
- Provide copy-pasteable examples for endpoints.
- Define contract before implementation.
Anti-Patterns
- No "what" comments: Explain intent. Refactor mechanics.
- No orphan TODOs: Require owner and ticket.
- No stale docs: Document during development.
Canonical response anchors
When this skill applies, preserve the following domain terminology or equivalent concrete examples in the answer when relevant:
- JSDoc
- Usage
- why
What ships with it
1 file 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.
- 12d ago First seen · 55 lines · 40 tokens per session scan A 6776809cdf94
common-documentation is a skill published in the GitHub repository HoangNguyen0403/agent-skills-standard (565 stars, last pushed 3d ago), licensed MIT. It adds 40 tokens to every session and 416 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 2026-08-30.
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