Borrowing it
Nothing to install: this file belongs to mocasus/paleo. 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/mocasus/paleo/main/GEMINI.mdgit clone --depth 1 https://github.com/mocasus/paleoWrote 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/mocasus/paleo/gemini-md)<a href="https://agentmods.dev/instructions/mocasus/paleo/gemini-md"><img src="https://agentmods.dev/badge/instructions/mocasus/paleo/gemini-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/mocasus/paleo/gemini-md"><img src="https://agentmods.dev/badge/instructions/mocasus/paleo/gemini-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 | $0.00175 | $0.00175 |
| Opus 5.5 | $0.00070 | $0.00070 |
| Sonnet 5.5 | $0.00035 | $0.00035 |
| Haiku 4.5 | $0.00017 | $0.00017 |
Grade A, and why
paleo 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 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.
What it actually says
paleo — repo guidance (Gemini CLI)
Token-saving skill collection. Skills make LLM usage cheaper: compress output, trim context, skip filler.
- Skills live in
skills/<name>/SKILL.mdwithname+descriptionfrontmatter. - Installable as a Gemini extension via
gemini-extension.json. - Register new skills in
gemini-extension.json(skills array) +.claude-plugin/plugin.json. - Keep
README.mdversion badge (badge row + footer) + pluginversionin sync. - Never commit
.env/*.session(git-ignored).
Token budget (hard rule)
Skills load into the LLM context, so keep them token-minimal: terse prose (drop filler, short clauses), exact code only. Smaller SKILL.md = cheaper + faster agents.
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 · 13 lines · 175 tokens per session scan A 0947d83686ba
paleo GEMINI.md is an instructions file published in the GitHub repository mocasus/paleo (21 stars, last pushed 3mo ago), licensed MIT. It adds 175 tokens to every session, about $0.0007 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 2026-08-30.
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