copilot-cli: GitHub Copilot CLI brings the power of Copilot coding agent directly to your terminal

by github · Agent Tool · ★ 11.4k

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How to install copilot-cli

brew install copilot-cli
brew install copilot-cli@prerelease

Taken from the project's README on GitHub. Check the security audit before running it.

Security audit verdict: SAFE · quality 68/100

Flagged: sudo usage. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

Quick Facts

Stars11,377
Forks1,981
LanguagePython
CategoryAgent Tool
Quality Score68/100
Open Issues2193
Last Updated2026-11-07
Created2023-01-06
Platformscli, python
Est. Tokens~15k

About copilot-cli

GitHub Copilot CLI The power of GitHub Copilot, now in your terminal. GitHub Copilot CLI brings AI-powered coding assistance directly to your command line, enabling you to build, debug, and understand code through natural language conversations.

Compatible Skills

These tools work well together with copilot-cli for enhanced workflows:

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  • gemini-cli — semantic(0.28)+complementary+similar_pop+shared_platform (50%)

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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