Borrowing it
Nothing to install: this file belongs to trevoraspencer/geminicli-mcp. 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/trevoraspencer/geminicli-mcp/main/AGENTS.mdgit clone --depth 1 https://github.com/trevoraspencer/geminicli-mcpWrote 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/trevoraspencer/geminicli-mcp/agents-md)<a href="https://agentmods.dev/instructions/trevoraspencer/geminicli-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/trevoraspencer/geminicli-mcp/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/trevoraspencer/geminicli-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/trevoraspencer/geminicli-mcp/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 | $0.00494 | $0.00494 |
| Opus 5 | $0.00247 | $0.00247 |
| Sonnet 5 | $0.00099 | $0.00099 |
| Haiku 4.5 | $0.00049 | $0.00049 |
Grade A, and why
geminicli-mcp 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 9d 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 — 67 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Repository Instructions
Project Overview
This project is a stateless stdio MCP server for the Gemini CLI. It exposes
Gemini as MCP tools and delegates each call to the headless gemini command.
Repository Layout
src/index.ts: MCP server entry point and tool registration.src/invoke.ts: Gemini CLI process invocation and result handling.src/schema.ts: Minimal structured-output schema validation.test/*.test.mjs: Offlinenode:testcoverage.examples/: Example configuration and usage snippets.
Design Invariants
- The server is stateless. Do not add sessions, resume state, or server-side working-directory switching.
- Invoke Gemini with a fresh child process per call and assume one server process per MCP client.
- Do not add server-side timeout enforcement; clients and the Gemini CLI are responsible for cancellation and time limits.
- Preserve argv-array spawning. Do not concatenate user input into shell strings or rely on shell interpolation.
- Child processes inherit the server environment so the Gemini CLI can use the same authentication and configuration as the parent process.
- Keep runtime dependencies minimal.
@modelcontextprotocol/sdkis the only runtime dependency. - Keep tests on the built-in
node:testrunner; do not add a third-party test framework.
Development Commands
npm install
npm run build
npm test
npm run lint
npm pack --dry-run
Use npm run test:live only when the Gemini CLI is installed, authenticated,
and live CLI behavior is intentionally being tested.
Testing Expectations
- Run
npm run buildbeforenpm test; tests import compiled files fromdist/. - Add offline
node:testcoverage for behavior changes. - Avoid live Gemini tests unless the change specifically depends on real CLI behavior.
Security Cautions
- Never log secrets or environment values that may contain credentials.
- Preserve argv-array spawning for all user-controlled input.
- Do not expose trusted-environment assumptions as user-controlled behavior.
- Keep MCP stdout clean. Diagnostics belong on stderr.
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.
- 9d ago First seen · 67 lines · 494 tokens per session scan A 8ebe73b14384
geminicli-mcp AGENTS.md is an instructions file published in the GitHub repository trevoraspencer/geminicli-mcp (0 stars, last pushed 25d ago), licensed MIT. It adds 494 tokens to every session, about $0.0025 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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