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compare-contrast

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Compare two technical perspectives with evidence from the codebase; use when deciding between options.

QUICK START

How to use this skill

Bring this guide into your coding agent with a prompt tailored to the tool you use.

  1. Open your project in Codex.
  2. Copy the prompt below and paste it into your agent.
  3. Review the proposed files and risks before you approve installation.
Prompt to paste
I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/data/compare-contrast/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/compare-contrast/. Do not write files or run scripts until I approve.

After I approve, install the complete skill folder, including required referenced files, into that project location. Verify it is discoverable, then tell me its actual invocation name and how to use it. Do not claim it is installed until you have verified it.

Copying this prompt does not install or run the skill. Review third-party files before use. Codex skill guide

Compare Contrast

Overview

Run a multi-agent debate using CLI subagents. Each agent argues one perspective with evidence. Synthesize and recommend a path.

Inputs

  • Topic or decision
  • Perspective A
  • Perspective B

Workflow

  1. Clarify the decision, constraints, and success criteria.
  2. Run six subagents (Codex, Gemini, Claude) using the commands below.
  3. Group findings by perspective and compare evidence strength.
  4. Recommend a winner and note when the other option is preferable.

Subagent Commands

Codex A

codex exec -m gpt-5.2 -s read-only -c model_reasoning_effort="low" --skip-git-repo-check \
  "Argue for {PERSPECTIVE_A} on {TOPIC}. Find codebase evidence with file paths and line numbers."

Codex B

codex exec -m gpt-5.2 -s read-only -c model_reasoning_effort="low" --skip-git-repo-check \
  "Argue for {PERSPECTIVE_B} on {TOPIC}. Find codebase evidence with file paths and line numbers."

Gemini A

CLOUDSDK_CORE_PROJECT="" GOOGLE_CLOUD_PROJECT="" GCLOUD_PROJECT="" GEMINI_API_KEY=${GEMINI_API_KEY} \
  gemini -m gemini-3-pro-preview -o text "Argue for {PERSPECTIVE_A} on {TOPIC}. Provide evidence with file paths and line numbers."

Gemini B

CLOUDSDK_CORE_PROJECT="" GOOGLE_CLOUD_PROJECT="" GCLOUD_PROJECT="" GEMINI_API_KEY=${GEMINI_API_KEY} \
  gemini -m gemini-3-pro-preview -o text "Argue for {PERSPECTIVE_B} on {TOPIC}. Provide evidence with file paths and line numbers."

Claude A

claude --model haiku -p "Argue for {PERSPECTIVE_A} on {TOPIC}. Provide evidence with file paths and line numbers."

Claude B

claude --model haiku -p "Argue for {PERSPECTIVE_B} on {TOPIC}. Provide evidence with file paths and line numbers."

Output

  • Side-by-side comparison
  • Evidence-backed recommendation