A coding-agent plugin that lets Claude Code ask Gemini for answers, code reviews, adversarial reviews, or implementation help through the Antigravity command-line tool.

Use it to ask technical questions, review changes, run a deliberately critical review, or request implementation assistance from Gemini.

It provides a second AI opinion for checking code and exploring alternative solutions during development.

gemini — Plugin by haunchen

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add plugins/haunchen/gemini-plugin-cc/gemini

Claude Code

/plugin marketplace add haunchen/gemini-plugin-cc

Clone the repo

git clone --depth 1 https://github.com/haunchen/gemini-plugin-cc

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

gemini 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 yesterday.

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.

plugins/gemini/.claude-plugin/plugin.json · 27 lines

What it actually says

{
  "name": "gemini",
  "version": "0.3.0",
  "description": "Gemini via Antigravity CLI for Claude Code — ask, review, adversarial-review, implement",
  "author": {
    "name": "Frank Chen"
  },
  "repository": "https://github.com/haunchen/gemini-plugin-cc",
  "license": "MIT",
  "keywords": ["gemini", "code-review", "second-opinion"],
  "hooks": {
    "SessionStart": [{
      "matcher": "startup",
      "hooks": [{
        "type": "command",
        "command": "${CLAUDE_PLUGIN_ROOT}/hooks/check-agent-version.sh"
      }]
    }, {
      "matcher": "resume",
      "hooks": [{
        "type": "command",
        "command": "${CLAUDE_PLUGIN_ROOT}/hooks/check-agent-version.sh"
      }]
    }]
  }
}

Changes

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.

yesterday First seen · 27 lines scan A 6c2e82de8517

Subscribe to this mod's changes

gemini is a plugin published in the GitHub repository haunchen/gemini-plugin-cc (1 stars, last pushed 18d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.

Code review Data and AI Security claude-code claude-code-plugin gemini gemini-cli prompt-caching

gemini

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

Other plugins, from other repositories

maestro-orchestrator

cloud-sql-postgresql-marketplace

knowledge-catalog

knowledge-catalog-marketplace

firestore-native

firestore-native-marketplace