Codebase Scan
Purpose / When to Activate
Activate:
- During Bootstrap initialization (before architecture extraction)
- When onboarding GAAI onto an existing codebase
- When the project structure is unknown
Process
- Recursively list directories and files
- Identify entry points, config files, manifests, and core modules
- Highlight likely architecture boundaries
- Output a structured project tree and key file list
Outputs
codebase_tree — structured directory tree with annotations for key files
key_files_list — list of significant files: entry points, configs, manifests, core modules, test runners
Quality Checks
- Repository structure is fully visible
- Core technical pillars are identified
- No blind spots remain
- Output is structured for use by
architecture-extract
Non-Goals
This skill must NOT:
- Interpret architecture decisions (use
architecture-extract) - Read file contents in depth
- Make recommendations
Maps the terrain. Does not interpret it.