whetstone_DSL/sprint135_plan.md

Sprint 135 Plan: Deterministic MCP Execution Telemetry and Replay Packs

Context

To debug wiring regressions, execution traces must be deterministic and compact. Sprint 135 standardizes MCP execution telemetry with replay-ready packets.

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Goals

1. Capture deterministic MCP execution telemetry per tool call
2. Normalize argument/result traces for replay and comparison
3. Build compact replay packs for cross-run debugging
4. Support low-context agent diagnosis of MCP regressions

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Steps

Step 1589: MCP execution event schema (10 tests)

Step 1590: Argument/result canonicalizer model (10 tests)

Step 1591: Deterministic replay pack composer (10 tests)

Step 1592: Replay divergence comparator model (10 tests)

Step 1593: whetstone_capture_mcp_execution_trace MCP tool (8 tests)

Step 1594: whetstone_export_mcp_replay_pack MCP tool (8 tests)

Step 1595: whetstone_compare_mcp_replays MCP tool (8 tests)

Step 1596: Trace quality scorer model (8 tests)

Step 1597: MCP replay diagnostics artifact (8 tests)

Step 1598: Sprint 135 integration summary + regression (8 tests)

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Architecture Gate

• Trace normalization must produce stable outputs
• Replay comparisons must return structured divergence packets
• Trace capture must preserve privacy and workspace scoping rules
• Max 600 lines per header