kb/openspec/changes/archive/2026-04-04-mcp-collection-and-delete-tools/tasks.md

1. Engine Client

• 1.1 Add delete_document(doc_id) method to mcp/engine.py

2. MCP Tools

• 2.1 Add kb_set_collection tool to mcp/server.py
• 2.2 Add kb_delete tool to mcp/server.py

3. Verification

• 3.1 Test kb_set_collection and kb_delete against running engine