Is the Codebase Argus skill free?

Yes. The skill itself is free from AaronZ345/codebase-argus. SkillProof publishes the install command and an independent test verdict at no cost.

What is the Codebase Argus SkillProof Score?

8.4/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 4/5.

How do I install Codebase Argus?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use Codebase Argus with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

Codebase Argus

Evidence-first GitHub PR, CI-failure and fork-sync review CLI, no key needed

by AaronZ345 · AaronZ345/codebase-argus

Works with setup

Install — copy the command Download source ↗

Test report

Verdict: Works with setup
Score: 8.4/10
Tested: Jul 24, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Jul 30, 2026 · 81e9524

⚠ This skill is no longer available upstream. Our re-check on Aug 10, 2026 couldn't find it any more (repo unreachable/deleted). The test below is what we measured on Jul 24, 2026 and we're leaving it up as a record — but there is nothing left to install, so we've removed the command.

Ran the bundled CLI live against four real public PRs in its default no-key rule-based mode: it correctly flagged axios#6300's dependency lockfile change as medium risk with +7/-7 evidence lines and honestly returned 'low risk, verify manually' on PRs that matched no heuristic. The 6 bundled pr-review tests pass, confirming it also fires on workflow, security-path, and source-without-tests changes. It gives deterministic, evidence-linked, scriptable triage a plain read cannot, but the flashier multi-provider tribunal needs paid keys, and running anything requires cloning the repo and npm install then invoking npm run argus from the checkout, not the skills copy. Scanned all src exfil vectors: only legitimate GitHub/provider API calls and user-configured endpoints, with explicit do-not-print-tokens and no-auto-merge guards.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 7/10
Docs & honesty 4/5

What Codebase Argus does

A Node/TypeScript playbook plus CLI that reviews GitHub pull requests, triages CI failures, and plans downstream fork syncs with deterministic, evidence-linked risk findings. It runs rule-based by default with no API key, and can escalate to OpenAI/Anthropic/Gemini/Codex provider tribunals when keys are present. Triggers when you ask to review a GitHub PR, diagnose failing Actions, or sync a fork against upstream.

How to install Codebase Argus

Nothing to install: the source repository no longer has this skill. If the author brings it back, our daily re-check will pick it up and the command will reappear here.

Commands — how to trigger Codebase Argus

/codebase-argus Evidence-first GitHub PR, CI-failure and fork-sync review CLI, no key needed

It also activates on plain-language prompts like these:

Review this GitHub PR and flag evidence-linked risks
Diagnose why our CI Actions run keeps failing on main
Plan the fork sync against upstream before we merge this

Frequently asked questions

Is the Codebase Argus skill free?: Yes. The skill itself is free from AaronZ345/codebase-argus. SkillProof publishes the install command and an independent test verdict at no cost.
Does Codebase Argus work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 24, 2026. Verdict: Works with setup. Ran the bundled CLI live against four real public PRs in its default no-key rule-based mode: it correctly flagged axios#6300's dependency lockfile change as medium risk with +7/-7 evidence lines and honestly returned 'low risk, verify manually' on PRs that matched no heuristic. The 6 bundled pr-review tests pass, confirming it also fires on workflow, security-path, and source-without-tests changes. It gives deterministic, evidence-linked, scriptable triage a plain read cannot, but the flashier multi-provider tribunal needs paid keys, and running anything requires cloning the repo and npm install then invoking npm run argus from the checkout, not the skills copy. Scanned all src exfil vectors: only legitimate GitHub/provider API calls and user-configured endpoints, with explicit do-not-print-tokens and no-auto-merge guards.
What is the Codebase Argus SkillProof Score?: 8.4/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 7/10, docs & honesty 4/5.
How do I install Codebase Argus?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use Codebase Argus with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.