Overlay Loader Skill

Loads project-specific overlay configuration from .claude/overlays/<project>/config.yml.

When to Use

• At session start (via session-start hook)
• When switching project context
• When initializing wrapper commands

Execution

Step 1: Detect Project

Determine project name from:

1. $CLAUDE_PROJECT environment variable
2. Git remote URL parsing (e.g., wescobar from github.com/.../Wescobar)
3. Directory name as fallback

Step 2: Load Overlay Config

PROJECT_NAME=$(basename "$(git remote get-url origin 2>/dev/null | sed 's/\.git$//')" | tr '[:upper:]' '[:lower:]')
OVERLAY_PATH=".claude/overlays/${PROJECT_NAME}/config.yml"

if [ -f "$OVERLAY_PATH" ]; then
  echo "Loading overlay: $PROJECT_NAME"
  cat "$OVERLAY_PATH"
else
  echo "No overlay found for: $PROJECT_NAME"
fi

Step 3: Apply Configuration

From the loaded config, extract and apply:

• allowed_agents: List of upstream agents permitted for this project
• disabled_agents: Agents that should warn if invoked
• enabled_mcp_servers: MCP servers to activate
• thresholds: Quality gate thresholds (coverage, complexity)
• verification_gates: Pre/post implementation checks

Output

Return a summary for the session context:

Project: wescobar
Prefix: wsc
Allowed agents: planner, architect, code-reviewer, security-reviewer, e2e-runner, tdd-guide
MCP servers: supabase, vercel
Test coverage min: 70%

Integration

This skill is called by:

• session-start.sh hook (optional)
• bk-* wrapper commands (to validate agent usage)
• Orchestrator when delegating to agents