# Sprint 163/164/165 Taskitem Execution Log (2026-02-26)

## MCP taskitem runs (training-data artifacts)

- `logs/taskitem_runs/sprint163_plan_20260225_171926`
- `logs/taskitem_runs/sprint164_plan_20260225_171927`
- `logs/taskitem_runs/sprint165_plan_20260225_171927`

Run summaries:
- Sprint 163: 14 normalized requirements, 2 tasks, queue ready, validation average 87.5
- Sprint 164: 14 normalized requirements, 2 tasks, queue ready, validation average 87.5
- Sprint 165: 14 normalized requirements, 2 tasks, queue ready, validation average 87.5

## Execution mapping (implemented work)

Completed in tooling/code:

- Step 1859: Added strictness audit utility
  - `tools/mcp/audit_grammar_strictness.py`
- Step 1860: Added canonical schema normalizer
  - `tools/mcp/schema_normalizer.py`
- Step 1861: Refactored grammar generator to normalized-schema recursive flow
  - `tools/mcp/generate_tool_grammars.py`
- Step 1862: Added strictness policy gate
  - `tools/mcp/grammars/strictness_policy.json`
  - `tools/mcp/check_strictness_policy.py`
- Step 1863: Added sprint 163 integration summary artifact
  - `editor/src/Sprint163IntegrationSummary.h`

- Step 1864: Implemented recursive object/array grammar rule generation
  - `tools/mcp/generate_tool_grammars.py`
- Step 1865: Added union handling in strict generation flow
  - `tools/mcp/generate_tool_grammars.py`
- Step 1866: Added constraint-aware scalar/object handling (where representable)
  - `tools/mcp/generate_tool_grammars.py`
- Step 1867: Added strict grammar CI runner and reproducible checks
  - `tools/mcp/run_grammar_ci_checks.sh`
- Step 1868: Added sprint 164 integration summary artifact
  - `editor/src/Sprint164IntegrationSummary.h`

- Step 1869: Enforced strictness policy checking
  - `tools/mcp/check_strictness_policy.py`
  - `tools/mcp/grammars/strictness_policy.json`
- Step 1870: Added artifact fingerprinting and lock verification
  - `tools/mcp/grammars/manifest.json`
  - `tools/mcp/grammars/manifest.lock`
  - `tools/mcp/verify_grammar_manifest.py`
- Step 1871: Added CI integration script for strict grammar pipeline
  - `tools/mcp/run_grammar_ci_checks.sh`
- Step 1872: Added runtime strict grammar verification path
  - `tools/mcp/validate_slm_runtime.sh` (`STRICT_GRAMMARS=1`)
- Step 1873: Added sprint 165 integration summary artifact
  - `editor/src/Sprint165IntegrationSummary.h`

## Verification

Executed:

- `./tools/mcp/run_grammar_ci_checks.sh`

Result: PASS

Outputs generated and verified:

- `tools/mcp/grammars/dispatch.gbnf`
- `tools/mcp/grammars/dispatch_schema.json`
- `tools/mcp/grammars/per_tool_schemas.json`
- `tools/mcp/grammars/normalized_tool_schemas.json`
- `tools/mcp/grammars/strictness_report.json`
- `tools/mcp/grammars/manifest.json`
- `tools/mcp/grammars/manifest.lock`

Coverage status:

- Tool schemas: 347
- Per-tool GBNF files: 347
- Dispatch schema `oneOf` entries: 347

Current strictness report:

- `unwaived_fallback_count`: 390
- `unsupported_schema_entry_count`: 1

Policy is configured to fail on any regression beyond this baseline.