Borrowing it
Nothing to install: this file belongs to duthaho/skillhub. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/duthaho/skillhub/main/AGENTS.mdgit clone --depth 1 https://github.com/duthaho/skillhubWrote 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/instructions/duthaho/skillhub/agents-md)<a href="https://agentmods.dev/instructions/duthaho/skillhub/agents-md"><img src="https://agentmods.dev/badge/instructions/duthaho/skillhub/agents-md/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/instructions/duthaho/skillhub/agents-md"><img src="https://agentmods.dev/badge/instructions/duthaho/skillhub/agents-md.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 | $0.01118 | $0.01118 |
| Opus 5.5 | $0.00447 | $0.00447 |
| Sonnet 5.5 | $0.00224 | $0.00224 |
| Haiku 4.5 | $0.00112 | $0.00112 |
Grade A, and why
skillhub AGENTS.md 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 1mo 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 — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
What this is
A collection of Claude Code skills (.claude/skills/<name>/SKILL.md) for
research, daily work, and a coding loop. No application code, no build system —
every skill is a markdown file with YAML frontmatter that Claude Code loads.
Entry point for a reader is README.md; entry point for a user is any skill's
slash command (e.g. /pulse).
Build, test, run
There is nothing to compile and no test suite — this is a docs-only repo. Validation is by inspection:
- Validate before committing:
python3 scripts/validate-skills.py— frontmatter (name= folder, no clash with harness built-ins,descriptionpresent, hard 1024-char limit with a soft WARN above 950), marketplace coverage both ways, README rows, references/ integrity.--descriptionsdumps the model-visible trigger surface (skills withdisable-model-invocation: trueexcluded) for the eval below. - Reworded a description? Re-run the trigger eval per
evals/README.md(fresh judge sub-agent overevals/triggers.json); the authoring lint is §3 of that file. A description is a skill's only trigger surface. - Install (from
README.md):/plugin marketplace add duthaho/skillhub(plugins defined in.claude-plugin/marketplace.json— a new skill must be added to a plugin'sskillslist there too), orcp -r/symlink the folders. - Run a skill by typing its command in Claude Code; skills lean on Claude Code's sub-agents and web tools, no external services.
Architecture
- Each skill is self-contained in
.claude/skills/<name>/. A user may copy one folder alone, so cross-skill conventions (date viadate +%F,out/creation, keyless degradation) are duplicated by design — don't try to factor them into a shared file. - Progressive disclosure via
references/: heavy output templates and design briefs live in.claude/skills/<name>/references/*.md, loaded only when the skill reaches that step (blueprint, jobfit, pulse, refactor, scout, verdict). TheSKILL.mdbody loads on every trigger, so keep it lean. - State model: skills write to
out/<skill>/in whatever project they run in (out/dev/for the coding loop; shipped change folders move toout/dev/archive/). SeeREADME.md"How the memory works". - The coding loop composes:
map→feature/bugfix/refactor→done, withautopilotwrapping the whole loop,scoutfeeding it candidates, andblueprintas map's human-facing sibling.
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.
- 1mo ago First seen · 78 lines · 1,118 tokens per session scan A 4c444f9fb12e
skillhub AGENTS.md is an instructions file published in the GitHub repository duthaho/skillhub (9 stars, last pushed 1mo ago), licensed MIT. It adds 1,118 tokens to every session, about $0.0045 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 2026-08-31.
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