Agent-Skills.md

Agent Skills: Gemini Advisor Skill

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UncategorizedID: kwiggen/claude-code-plugin/gemini-advisor

Repository

kwiggen/claude-code-plugin
kwiggenLicense: MIT
1

Install this agent skill to your local

pnpm dlx add-skill https://github.com/kwiggen/claude-code-plugin/tree/HEAD/skills/gemini-advisor

Skill Files

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skills/gemini-advisor/SKILL.md

Skill Metadata

Name
gemini-advisor
Description
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Gemini Advisor Skill

Before Starting

  1. Check Gemini availability — Run test -n "$GEMINI_API_KEY" via Bash to verify the API key is configured. If it fails, inform the user that Gemini API key is not configured and offer to answer the question directly.
  2. Determine context — Figure out what the user wants Gemini's opinion on:
    • A specific file → read the file content
    • A code question → formulate the question with relevant context
    • A discussion/decision → summarize the current discussion state
    • A general topic → pass the question directly

Process

Step 1: Prepare the Query

Build a clear, self-contained prompt for Gemini that includes:

  • The user's question or topic
  • Relevant context (file contents, discussion summary, code snippets)
  • Framing: "Provide your independent technical opinion on the following."

Step 2: Send to Gemini

Use Bash to invoke the Gemini API entrypoint:

echo "<context>" | node {pluginDir}/dist/gemini/cli.js --prompt "<question with framing>"

Or without stdin if no file/code context is needed:

node {pluginDir}/dist/gemini/cli.js --prompt "<full question with context>"

The CLI outputs JSON with success, output, model, and optional error fields.

Step 3: Present Results

Output Format

Gemini's Take

[Gemini's full response, formatted cleanly]

Claude's Commentary

[Brief commentary on Gemini's response — agreements, disagreements, additional considerations, or alternative perspectives. Keep this concise — the point is to get a second opinion, not to debate.]

Fallback Behavior

If Gemini API key is not configured or the call fails:

  1. Inform the user: "Gemini API key not configured."
  2. Offer to answer the question directly as Claude.
  3. Do NOT block on Gemini unavailability.

Guidelines

  • Present Gemini's output faithfully — do not rewrite or censor it.
  • Claude's commentary should be brief and additive, not defensive.
  • If the user's question is about a file, always read and pipe the file content.
  • Keep Gemini prompts self-contained — Gemini has no conversation context.
  • Do not send sensitive information (secrets, credentials) to Gemini.