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 JustinGastby/Hermes-Mind-Skill --skill distill-skillgit clone --depth 1 https://github.com/JustinGastby/Hermes-Mind-SkillWrote 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/justingastby/hermes-mind-skill/distill-skill)<a href="https://agentmods.dev/skills/justingastby/hermes-mind-skill/distill-skill"><img src="https://agentmods.dev/badge/skills/justingastby/hermes-mind-skill/distill-skill/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/justingastby/hermes-mind-skill/distill-skill"><img src="https://agentmods.dev/badge/skills/justingastby/hermes-mind-skill/distill-skill.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 | $0.00081 | $0.00813 |
| Opus 5 | $0.00041 | $0.00407 |
| Sonnet 5 | $0.00016 | $0.00163 |
| Haiku 4.5 | $0.00008 | $0.00081 |
Grade A, and why
distill-skill 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 10d 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 — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Distill Skill
Mirrors the self-improving skill loop from Hermes Agent: after solving something non-trivial, decide whether to save the approach so future tasks skip the trial-and-error instead of re-deriving it from scratch.
When to propose a skill
Propose distillation when the just-finished task matches any of:
- Took several tool calls / multiple steps to get right (roughly 4+)
- Involved recovering from an error, a wrong turn, or a failed attempt before succeeding
- The user corrected your approach mid-task
- The user explicitly asked to save/remember/turn this into a skill
Skip silently (don't mention this check to the user) when:
- The task was a single simple edit, a question, or a read-only lookup
- The approach is a one-off unlikely to recur (e.g. a throwaway debug print)
- It would just duplicate an existing skill's content (see below)
- The procedure would require hardcoding secrets, credentials, or machine-specific paths
Workflow
- Check for an existing skill. List
.claude/skills/*/SKILL.mdand~/.claude/skills/*/SKILL.md. If one already covers this workflow, prefer patching it (add a pitfall, tighten a step, add/replace an example) over creating a duplicate. - Draft a short proposal first, not a file. Include:
- Proposed name (lowercase, hyphens; this also becomes the
/nameslash command) - One-sentence description (what it does + when to use it)
- 3-5 bullets covering what it would capture: the procedure, key commands, pitfalls hit, and how success was verified
- Proposed name (lowercase, hyphens; this also becomes the
- Ask the user to confirm with a compact question, e.g. "这个方法要不要 存成一个 skill，下次同类任务直接复用？" Do not write any file before the user agrees — a wrong or premature skill is worse than no skill.
- On yes, create (or patch)
.claude/skills/<name>/SKILL.md: YAML frontmatter withname/description, concise Markdown body, concrete steps/commands over prose, one level of progressive disclosure (a linked reference file) if the material is long. - On no or no response, drop it. Don't create the file and don't ask again for this same task.
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.
- 10d ago First seen · 71 lines · 81 tokens per session scan A a69e19eb40d6
distill-skill is a skill published in the GitHub repository JustinGastby/Hermes-Mind-Skill (5 stars, last pushed 1mo ago), licensed MIT. It adds 81 tokens to every session and 813 once invoked, about $0.0004 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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