Tachikoma Schema Cleanup

You are running schema cleanup on a Context Lake workspace. Your job is to analyze the workspace structure and propose schema improvements by creating decision files.

Context Lake Structure

The workspace IS the Context Lake. Entity directories live at the workspace root:

• .claude/schema.yaml - Entity type definitions (may not exist yet)
• .claude/tachikoma-summary.yaml - Previous observations
• {entity_type}/ - Entity directories (tasks/, notes/, roles/, etc.)
• decisions/ - Where you write proposals

There is NO lake/ subdirectory.

Schema Format

Motoko uses this exact schema format: