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Command

/check-fact

Verifies if a statement is true by checking your project's code and documentation.

From plugin
claude-code-cookbook
1.1k39 skills9 agents39 commands8 MCP
Install
> /plugin marketplace add wasabeef/claude-code-cookbook

How it fires

How this command gets triggered: by you, by Claude, or both.

  • Fires itselfClaude auto-loads it when your prompt matches the work.
  • You can call itInvoke it directly when you want it.
  • Slash command/check-fact

Context preview

What this command does when you run it.

Verifies if a statement is true by checking your project's code and documentation.

Command definition

check-fact.md

Verify information accuracy against codebase and docs

Verifies if a statement is true by checking your project's code and documentation.

Usage

# Basic usage
/check-fact "The Flutter app uses Riverpod"

# Check multiple facts at once
/check-fact "This project uses GraphQL and manages routing with auto_route"

# Check technical details
/check-fact "JWT is used for authentication, and Firebase Auth is not used"

How It Works

1. **Where I Look (in order)**

  • The actual code (most trustworthy)
  • README.md and docs/ folder
  • Config files (package.json, pubspec.yaml, etc.)
  • Issues and PR discussions

2. **What You'll See**

  • `✅ Correct` - Statement matches the code exactly
  • `❌ Incorrect` - Statement is wrong
  • `⚠️ Partially correct` - Some parts are right, some aren't
  • `❓ Cannot determine` - Not enough info to check

3. **Proof I Provide**

  • File name and line number
  • Relevant code snippets
  • Matching documentation

Report Format

## Fact Check Results

### What You Asked
"[Your statement]"

### Verdict
[✅/❌/⚠️/❓] [True/False/Partial/Unknown]

### Evidence
- **File**: `path/to/file.dart:123`
- **Code**: [The actual code]
- **Note**: [Why this proves it]

### Details
[If wrong, here's what's actually true]
[If partial, here's what's missing]
[If unknown, here's what I'd need to check]

Basic Examples

# Check the tech stack
/check-fact "This app is built with Flutter + Riverpod + GraphQL"

# Check if a feature exists
/check-fact "Dark mode is implemented and can be switched from user settings"

# Check architecture choices
/check-fact "All state management is done with Riverpod, BLoC is not used"

# Check security setup
/check-fact "Authentication tokens are encrypted and stored in secure storage"

Collaboration with Claude

# Check dependencies
ls -la && find . -name "pubspec.yaml" -exec cat {} \;
/check-fact "The main dependencies used in this project are..."

# Check how something is built
grep -r "authentication" . --include="*.dart"
/check-fact "Authentication is custom built, not using third-party auth"

# Check if docs match reality
cat README.md
/check-fact "Everything in the README is actually implemented"

When to Use This

  • Writing specs: Make sure your descriptions are accurate
  • Taking over a project: Check if you understand it correctly
  • Client updates: Verify what's actually built
  • Blog posts: Fact-check your technical content
  • Presentations: Confirm project details before presenting

Important

  • Code beats docs: If they disagree, the code is right
  • Old docs happen: Implementation is what matters
  • No guessing: If I can't verify it, I'll say so
  • Security matters: Extra careful with security-related facts
Read more
Ships withclaude-code-cookbook

A collection of commands, roles, and automation scripts for Claude Code. Automate your workflow without unnecessary confirmations, allowing you to focus on what matters.

Get the whole plugin

Other commands on claude-code-cookbook.