compare-mcp: Skill for Claude Code

.claude/skills/compare/SKILL.md

compare is a skill for Claude Code from Cristophereasygoing927/compare-mcp. It costs 52 tokens per session (706 once invoked), scanned A, original, MIT.

A multi-model code review tool that sends the same bug or task to several language models and compares their findings.

In plain words
What is it for?
Use it to get second opinions on code issues, optionally have the models debate, and send agreed fixes to parallel subagents.
Why use it?
It reduces the chance that one reviewer misses a problem by showing which findings agree and which differ.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions subagents.

This is Cristophereasygoing927/compare-mcp's own configuration. It tells Claude Code how to work on compare-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything compare-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Cristophereasygoing927/compare-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Cristophereasygoing927/compare-mcp/main/.claude/skills/compare/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Cristophereasygoing927/compare-mcp

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for compare

README.md
[![agentmods](https://agentmods.dev/badge/skills/cristophereasygoing927/compare-mcp/compare/github.svg)](https://agentmods.dev/skills/cristophereasygoing927/compare-mcp/compare)
Your own site
<a href="https://agentmods.dev/skills/cristophereasygoing927/compare-mcp/compare"><img src="https://agentmods.dev/badge/skills/cristophereasygoing927/compare-mcp/compare/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for compare

Your own site · 80×15
<a href="https://agentmods.dev/skills/cristophereasygoing927/compare-mcp/compare"><img src="https://agentmods.dev/badge/skills/cristophereasygoing927/compare-mcp/compare.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 706 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00052 $0.00706
Opus 5 $0.00026 $0.00353
Sonnet 5 $0.00010 $0.00141
Haiku 4.5 $0.00005 $0.00071

Measured 9d ago against content hash 40dbaa5ae913, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

compare 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 9d ago.

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.

.claude/skills/compare/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/compare skill

Trigger

User types: /compare <issue description> [--debate] [--providers claude,openai] Or naturally: "compare models on this bug", "get a second opinion from multiple models"

Workflow

Step 1 — discover

Call compare_models to show the user which providers are enabled. If fewer than 2 are enabled, stop and tell the user:

Enable at least 2 providers in ~/.compare/config.json. Run compare_models to check.

Step 2 — read code

Use the Read tool to load the relevant file(s). If the user didn't specify a file, use Glob + Grep to find the most relevant file for the issue description.

Respect max_file_lines from config (default 1000). If the file is larger, ask the user to specify a line range or pass the most relevant section.

Step 3 — dispatch

Call compare_run with the file contents and issue description. If --providers was specified, pass the provider list. While waiting, tell the user: "Querying [provider1], [provider2]... (parallel)"

Step 4 — diff

Call compare_diff with the responses. Display a findings table:

Finding                   | Providers        | Severity
--------------------------|------------------|----------
Memory leak in tile loop  | claude, openai   | high
Dead code: prevVisible    | openai           | medium

Show: "Models agreed on X% of findings."

Step 5 — debate (if --debate flag or user asks)

Call compare_debate with the responses. Display: "Debate complete. [N] findings disputed, [N] additions. [N] API calls made." Use refined_findings instead of recommended for the todos step.

Step 6 — todos

Call compare_todos with either the diff's recommended list or debate's refined_findings, plus the file path. Display the ranked todo list with IDs.

Step 7 — implement

Ask: "Dispatch subagents to implement all [N] todos in parallel? (y/n/select)"

  • y: spawn one Agent (subagent) per todo, all in parallel
  • select: show numbered list, user picks which ones
  • n: stop here

Read the full file on GitHub · 81 lines

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.

  1. 9d ago First seen · 81 lines · 52 tokens per session scan A 40dbaa5ae913

Subscribe to this mod's changes

compare is a skill published in the GitHub repository Cristophereasygoing927/compare-mcp (2 stars, last pushed yesterday), licensed MIT. It adds 52 tokens to every session and 706 once invoked, about $0.0003 per session on Opus 5. 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.

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