Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/HoangNguyen0403/agent-skills-standardnpx agentmods add skills/hoangnguyen0403/agent-skills-standard/skill-creatorWrote 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/skill-creator)<a href="https://agentmods.dev/skills/hoangnguyen0403/agent-skills-standard/skill-creator"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/skill-creator/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/skill-creator"><img src="https://agentmods.dev/badge/skills/hoangnguyen0403/agent-skills-standard/skill-creator.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 | $0.00047 | $0.00536 |
| Opus 5.5 | $0.00019 | $0.00214 |
| Sonnet 5.5 | $0.00009 | $0.00107 |
| Haiku 4.5 | $0.00005 | $0.00054 |
Grade A, and why
project-skill-maintenance 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 20d 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
Repository Skill Maintenance Standard
Priority: P1 (HIGH)
Project-local maintenance procedures for contributing to agent-skills-standard.
Generic Skill Authoring: Follow the canonical
common-skill-creatorstandard; this local skill covers repository maintenance only.
Repository Contribution Workflow
- Canonical Authoring:
- Add or edit skills in canonical
skills/<category>/<skill-name>/. - Never hand-edit generated agent mirrors in
.agents/,.claude/,.codex/, or.github/.
- Add or edit skills in canonical
- Metadata Versioning (
skills/metadata.json):- When modifying
skills/<category>/**, bumpcategories.<category>.version(patch increment for bugfixes/modernization) and updatelast_updateddate (YYYY-MM-DD). - When modifying
.agents/workflows/**, bumpreleases.workflows.version.
- When modifying
- Mirror Synchronization:
- Run
pnpm generate-indicesonce to propagate canonical skills, workflows, and specialists into native agent directories.
- Run
- Validation Quality Gates:
- Run
pnpm validate:all(structure, format, injection scan). - Run
pnpm audit:sdlcandpnpm audit:skills. - Run
pnpm check-alignment.
- Run
- Changelog & Release:
- Record user-facing changes under
[Unreleased]inCHANGELOG.md. - Use release scripts:
pnpm release-cli,pnpm release-all-skills,pnpm release:manifest.
- Record user-facing changes under
Canonical Authoring References
What ships with it
3 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.
- 20d ago Changed · -175 lines · +29 tokens per session 79939ab2ad70
- 1mo ago First seen · 226 lines · 18 tokens per session scan A 98bf189bde25
project-skill-maintenance is a skill published in the GitHub repository HoangNguyen0403/agent-skills-standard (582 stars, last pushed today), licensed MIT. It adds 47 tokens to every session and 536 once invoked, about $0.0002 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 2026-09-03.
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