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cross-check

Send one user-written question to three language models and show a side-by-side comparison of their replies, including a short synthesis of overlap and…

Skill by CureWise

IndexedMIT
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/curewise-cross-check

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Send one user-written question to three language models and show a side-by-side comparison of their replies, including a short synthesis of overlap and differences.

Use cases: agent-building

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Permissions

What this skill can do and what it asks for, from its SKILL.md and code. Checked Nov 2, 2026.

Tools
No tools found
Secrets
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Install scripts
None found

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/cross-check

What's inside

Skill name
cross-check
Description
Send one user-written question to three language models and show a side-by-side comparison of their replies, including a short synthesis of overlap and differences.
License
MIT
Instructions
35 lines in SKILL.md · view on GitHub

Files (1)

  • SKILL.md

SKILL.md (first lines)

# Cross-Check Skill

Use this skill when the user asks to:
- Run a Cross-Check on a question they wrote
- Compare how three models answered the same prompt
- Open a previous Cross-Check run from their account

Cross-Check is a comparison tool. It does not make decisions for the user or replace talking with people they trust.

## Workflow

### New run

1. Require a clear prompt of at least 10 characters. If the request is vague, ask them to rewrite it before calling a tool.

2. Call `ask_cross_check` with `prompt`. Set `isPrivate: true` only if the user asks to keep the run private from shared accounts.

3. Present results as:
   - A short summary of each model reply
   - Where the replies overlap
   - Where they differ
   - The synthesized recap last

### Past runs

1. Use `list_cross_checks` to list prior runs.
2. Use `get_cross_check` with an ID to open one run.

## Rules

- Do not use this skill for booking, payments, or account-settings tasks.
- Do not present the output as a decision the user must follow.
- If `list_cross_checks` already has a nearly identical prompt, show that run and ask before starting a new one.

From CureWise/curewise-plugins, MIT.

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Last commit (this folder)
Oct 15, 2026 (22 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

Same skill elsewhere

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Cite this page

cross-check skill. Agent Mart. https://agentmart.dev/skills/curewise-cross-check (last updated 2026-10-24)