whetstone_DSL/sprint149_plan.md

Sprint 149 Plan: Generic AST-to-Text Regeneration and Diff Stability

Context

Sprint 149 delivers shared regeneration orchestration with language-specific style policies provided by adapters, minimizing non-semantic churn.

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Goals

1. Implement language-neutral AST-to-text regeneration orchestration
2. Plug in adapter style/include/order policies without core branching
3. Minimize semantic-noise diffs across supported languages
4. Publish deterministic regeneration decisions and quality evidence

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Steps

Step 1729: Generic regeneration policy schema (10 tests)

Step 1730: Adapter style policy binding model (10 tests)

Step 1731: Include/import ordering normalization model (10 tests)

Step 1732: Semantic-noise suppression comparator model (10 tests)

Step 1733: whetstone_regenerate_text_generic MCP tool (8 tests)

Step 1734: whetstone_preview_regeneration_diff_generic MCP tool (8 tests)

Step 1735: whetstone_get_regeneration_trace_generic MCP tool (8 tests)

Step 1736: Cross-language regeneration quality packet model (8 tests)

Step 1737: Regeneration stability report artifact (8 tests)

Step 1738: Sprint 149 integration summary + regression (8 tests)

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Architecture Gate

• Regeneration orchestration must remain language-neutral
• Adapter policies must be explicit and versioned
• Diff stability metrics must be reproducible and comparable across languages
• Max 600 lines per header