whetstone_DSL/sprint64_plan.md

Sprint 64 Plan: Cost-Aware Transpilation Planning

Context

As pair matrix grows, planning compute and human-review cost becomes essential. Sprint 64 adds cost-aware planning before execution.

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Goals

1. Estimate cost for transpilation plans (compute, review, time)
2. Offer plan alternatives by cost/risk profile
3. Improve scheduling for high-value pair upgrades
4. Enforce budget policies in orchestrated runs

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Steps

Step 869: Porting cost model v1 (12 tests)

Step 870: Review effort estimator from ambiguity/risk packets (10 tests)

Step 871: Compute/runtime cost estimator from prior runs (10 tests)

Step 872: Multi-plan alternative generator (cheap, balanced, rigorous) (10 tests)

Step 873: Budget policy enforcer integration (10 tests)

Step 874: Cost-vs-quality tradeoff report generator (8 tests)

Step 875: whetstone_plan_transpilation_run MCP tool (8 tests)

Step 876: whetstone_estimate_porting_cost MCP tool (8 tests)

Step 877: Cost telemetry integration in metrics stack (8 tests)

Step 878: Sprint 64 integration summary + regression (8 tests)

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Policy Rule

• Over-budget plans require explicit reviewer approval token.