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 instructions/fastxyz/skill-optimizer/gemini-mdgit clone --depth 1 https://github.com/fastxyz/skill-optimizerWrote 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/fastxyz/skill-optimizer/gemini-md)<a href="https://agentmods.dev/instructions/fastxyz/skill-optimizer/gemini-md"><img src="https://agentmods.dev/badge/instructions/fastxyz/skill-optimizer/gemini-md.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 | $0.00044 | $0.00044 |
| Opus 5 | $0.00022 | $0.00022 |
| Sonnet 5 | $0.00009 | $0.00009 |
| Haiku 4.5 | $0.00004 | $0.00004 |
Grade A, and why
skill-optimizer GEMINI.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 3d 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
@./AGENTS.md @./README.md @./CONTRIBUTING.md @./skills/skill-optimizer/SKILL.md @./skills/skill-optimizer/references/workbench.md
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.
- 3d ago First seen · 6 lines · 44 tokens per session scan A 288bc9500fea
skill-optimizer GEMINI.md is an instructions file published in the GitHub repository fastxyz/skill-optimizer (77 stars, last pushed 3mo ago), licensed MIT. It adds 44 tokens to every session, 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.
Other instructions, from other repositories
ClawBench AGENTS.md
Instructions for TIGER-AI-Lab/ClawBench, covering clawbench -- agent context, what this is, project structure, setup and 2. configure at least one model.
inspect-robots CLAUDE.md
Instructions for robocurve/inspect-robots, covering inspect robots — agent guide, the one big idea, layout, working here and out of scope (separate repos / plugins).
argus-validation-benchmarks CLAUDE.md
Instructions for pensar-x/argus-validation-benchmarks, covering project overview, what you're building, the goal, success criteria and what is apex?.
benchjack CLAUDE.md
Instructions for benchjack/benchjack, covering claude.md, project overview, tech stack, repository layout and common commands.
AgentBench-Live CLAUDE.md
Instructions for jackjin1997/AgentBench-Live, covering agentbench-live, project goal, strategy: credibility first, then ride the wave, current sprint scope (accepted from ceo review 2026-03-19) and deferred (todos).
agent-bench AGENTS.md
Instructions for cipherfoxie/agent-bench, covering agents, multi-agent contract for agent-bench, project ethos, rules and adding an experiment (the only common task).