- Add agent-agnostic tool registry (tool-registry.ts) that discovers tools from disk
- Embed tool-loader extension as platform infrastructure (ensure-tool-loader.ts)
- Inject tool context into Claude prompts on first message
- Add marketplace tool sync (sync-marketplace.ts)
- Fix model selector defaulting to claude-code when no model explicitly selected
- Exclude tool-loader-source.ts from tsconfig (Pi-specific deps)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>