architectlisted

## User Input ```text $ARGUMENTS ``` ## Prerequisites - `/refactor` complete - Read the `agent-pipeline` rule (`.cursor/rules/agent-pipeline.mdc`) for stage order and handoff rules ## Goals 1. **Code mutation:** Stryker.NET on changed production assemblies — mutation score at or above `gates.mutation.threshold` in `harness.yml` (default **80%**) 2. **Gherkin mutation** *(optional — only if acceptance tests exist)*: `./scripts/run-gherkin-mutation.ps1` — no survivors. Acceptance tests are opt-in for now; skip this goal when `specs/<feature>/acceptance/*.feature` does not exist. 3. **Coverage:** Address uncovered branches in changed production files (coverlet) 4. **Full suite:** `dotnet test` on entire solution ## Gate Scripts Run from repository root: ```powershell dotnet stryker --config-file stryker-config.json dotnet test --collect:"XPlat Code Coverage" dotnet test # Only when acceptance tests exist (opt-in for now): ./scripts/run-gherkin-mutation.ps1 ``` Stryker requires `dotnet tool restore` (see `dotnet-tools.json`). ## Mutation Score - Threshold: `gates.mutation.threshold` in `harness.yml` (default **80%**) on mutated code in scope - Scope: the assemblies listed in `stryker-config.json` (see `stryker-config.json`) - If score below threshold: strengthen unit/property tests or simplify code — re-run Stryker ## Gherkin Survivors *(only when acceptance tests exist)* If `run-gherkin-mutation.ps1` reports survivors: | Survivor type | Route to | |---|---| | Scena