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/richfrem/agent-plugins-skills/mine-skillnpx skills add richfrem/agent-plugins-skills --skill mine-skillgit clone --depth 1 https://github.com/richfrem/agent-plugins-skillsWrote 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/richfrem/agent-plugins-skills/mine-skill)<a href="https://agentmods.dev/skills/richfrem/agent-plugins-skills/mine-skill"><img src="https://agentmods.dev/badge/skills/richfrem/agent-plugins-skills/mine-skill.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 | $0.00067 | $0.00547 |
| Opus 5 | $0.00034 | $0.00273 |
| Sonnet 5 | $0.00013 | $0.00109 |
| Haiku 4.5 | $0.00007 | $0.00055 |
Grade A, and why
mine-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 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.
What it actually says
Dependencies
This skill requires Python 3.8+ and standard library only. No external packages needed.
To install this skill's dependencies:
pip-compile ./requirements.in
pip install -r ./requirements.txt
See ./requirements.txt for the dependency lockfile (currently empty — standard library only).
Mine Skill
Run the targeted analysis pipeline on a single Agent Skill. This allows for focused extraction and synthesis from isolated directories without processing an entire plugin.
What This Command Does
- Inventory — Enumerate the files within the specific skill directory.
- Analyze — Run the
analyze-pluginskill, focused purely on this component. - Extract — Pull design patterns and architecture choices from the skill.
- Synthesize — Generate improvement recommendations using
synthesize-learnings.
Usage
/mine-skill <path-to-skill-directory>
Examples
# Analyze a specific skill within a knowledge plugin
/mine-skill claude-knowledgework-plugins/sales/skills/call-prep
# Analyze one of our own core skills
/mine-skill plugins\ reference/agent-scaffolders/skills/create-plugin
Execution Flow
- Invoke Analysis: The system triggers
analyze-pluginoperating in Single Skill Mode on the provided$ARGUMENTS. - Execute Inventory:
scripts/inventory_plugin.pyruns against the skill path.Security scanning is enabled by default. Credential detection, network call detection, and environment variable checks run on all script files unless
--no-securityis passed. - Pattern Matching: Checks against
references/pattern-catalog.mdand detects anti-patterns. - Knowledge Synthesis:
synthesize-learningsis invoked to map discovered patterns back to our coreagent-scaffoldersandagent-scaffolders. - Output: Renders the analysis inline, highlighting the novel techniques implemented in the isolated skill.
What ships with it
4 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 · 64 lines · 67 tokens per session scan A 98fcaddc5f69
mine-skill is a skill published in the GitHub repository richfrem/agent-plugins-skills (6 stars, last pushed yesterday), licensed MIT. It adds 67 tokens to every session and 547 once invoked, about $0.0003 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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