TrueGrowth/openspec/changes/archive/2026-04-29-add-prompt-history-tool/tasks.md

1. Implementation

• 1.1 Add prompt lineage metadata to task parameters.
• 1.2 Add lightweight task summary reading for prompt history.
• 1.3 Add prompt history aggregation and preview mapping.
• 1.4 Add built-in toolbox prompt history tool.
• 1.5 Extend prompt list hover details without changing existing select behavior.
• 1.6 Propagate prompt lineage metadata from AI input workflow steps.

2. Verification

• 2.1 Add focused unit tests for title/category/preview compatibility.
• 2.2 Run targeted tests and type checks.