Skill: Create verifier skills

Use the TodoWrite tool to track your progress through this multi-step task.

## Goal

Create one or more verifier skills that can be used by the Verify agent to automatically verify code changes in this project or folder. You may create multiple verifiers if the project has different verification needs (e.g., both web UI and API endpoints).

**Do NOT create verifiers for unit tests or typechecking.** Those are already handled by the standard build/test workflow and don't need dedicated verifier skills. Focus on functional verification: web UI (Playwright), CLI (Tmux), and API (HTTP) verifiers.

## Phase 1: Auto-Detection

Analyze the project to detect what's in different subdirectories. The project may contain multiple sub-projects or areas that need different verification approaches (e.g., a web frontend, an API backend, and shared libraries all in one repo).

1. **Scan top-level directories** to identify distinct project areas:
   - Look for separate package.json, Cargo.toml, pyproject.toml, go.mod in subdirectories
   - Identify distinct application types in different folders

2. **For each area, detect:**

   a. **Project type and stack**
      - Primary language(s) and frameworks
      - Package managers (npm, yarn, pnpm, pip, cargo, etc.)

   b. **Application type**
      - Web app (React, Next.js, Vue, etc.) → suggest Playwright-based verifier
      - CLI tool → suggest Tmux-based verifier