# L3b: Verifier Agent

**Module**: M3 Safety  
**Files**: starter.py, solution.py

## Objective

Create a read-only agent that checks the builder's work independently.

## Concepts

Refer to the corresponding module for full concept explanations.

## Starter

```bash
cd course/labs/l3-verifier/
# Open starter file and fill in the TODOs
```

## Checkpoints

1. Define read-only tools (read_file, grep_search, list_files)
2. Implement claim verification logic
3. Report confidence level (PERFECT through FAILED)
4. No write/edit/bash tools allowed

## Solution

Compare against the solution file after attempting the starter.