run-gemini-cli is a GitHub Action that runs the Gemini command-line agent inside repository workflows. Teams use it to automate pull-request reviews, issue triage, code analysis, and code changes, either on events or when requested in comments. Its catalogue instruction helps configure and use the action.
Borrowing it
Nothing to install: this file belongs to google-github-actions/run-gemini-cli. 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/google-github-actions/run-gemini-cli/main/GEMINI.mdgit clone --depth 1 https://github.com/google-github-actions/run-gemini-cliWrote 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/google-github-actions/run-gemini-cli/gemini-md)<a href="https://agentmods.dev/instructions/google-github-actions/run-gemini-cli/gemini-md"><img src="https://agentmods.dev/badge/instructions/google-github-actions/run-gemini-cli/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/google-github-actions/run-gemini-cli/gemini-md"><img src="https://agentmods.dev/badge/instructions/google-github-actions/run-gemini-cli/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 | $0.00551 | $0.00551 |
| Opus 5.5 | $0.00220 | $0.00220 |
| Sonnet 5.5 | $0.00110 | $0.00110 |
| Haiku 4.5 | $0.00055 | $0.00055 |
Grade A, and why
run-gemini-cli 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 2mo 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 — 40 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Guidelines for Developing this GitHub Action
This project is a composite GitHub Action, designed to be reusable, efficient, and secure for other developers.
Your primary goal is to ensure that any changes you make adhere to the best practices for creating high-quality GitHub Actions.
Core Principles for This Action
-
Understand the
action.ymlManifest:- This is the heart of the action. It defines inputs, outputs, branding, and the execution steps.
- When adding or modifying functionality, ensure the
action.ymlis updated clearly and correctly. - Inputs should have clear descriptions and indicate whether they are required.
-
Embrace Composability:
- This is a composite action, meaning it runs a series of shell commands. This makes it lightweight and fast.
- Prefer using standard, portable shell commands (
sh) to ensure compatibility across different runners. - Avoid introducing complex dependencies that would require a containerized action unless absolutely necessary.
-
Security is Paramount:
- Never expose secrets. Set required tokens and keys as environment variables using
secretsin your workflows. - Principle of Least Privilege: When documenting required permissions for the action (in the
README.md), always recommend the minimum set of permissions necessary for the action to function.
- Never expose secrets. Set required tokens and keys as environment variables using
-
Prioritize User Experience:
- Clear Documentation: The
README.mdis our user manual. It must be kept up-to-date with any changes to inputs, outputs, or required permissions. Usage examples are critical. - Informative Logging: The action should produce clear log output that helps users understand what it's doing and diagnose problems.
- Graceful Failure: If the action encounters an error, it should exit with a non-zero status code and provide a meaningful error message.
- Clear Documentation: The
-
Maintain Workflow Examples:
- The files in the
/examplesdirectory are crucial for demonstrating how to use this action. - Ensure they are kept in sync with the latest features and best practices.
- The files in the
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.
- 2mo ago First seen · 40 lines · 551 tokens per session scan A e5b9a80a04d5
run-gemini-cli GEMINI.md is an instructions file published in the GitHub repository google-github-actions/run-gemini-cli (2,118 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 551 tokens to every session, about $0.0022 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.
run-gemini-cli GEMINI.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| run-gemini-cli GEMINI.mdgoogle-github-actions/run-gemini-cli | Instructions file | 2.1k | 2mo ago | Apache-2.0 | A | 551 | Gemini CLI |
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