more audit work

src/__Libraries/StellaOps.Policy.Tools/AGENTS.md

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+# Policy Tools Library Charter
+
+## Mission
+Provide shared CLI logic for policy validation, schema export, and simulation tools.
+
+## Responsibilities
+- Maintain deterministic outputs and error handling in tool runners.
+- Keep CLI parsing consistent and offline-friendly.
+- Track sprint tasks in `TASKS.md` and update the sprint tracker.
+
+## Key Paths
+- `PolicyDslValidatorApp.cs`
+- `PolicySchemaExporterRunner.cs`
+- `PolicySimulationSmokeRunner.cs`
+
+## Required Reading
+- `docs/modules/policy/architecture.md`
+- `docs/modules/platform/architecture-overview.md`
+- `docs/implplan/permament/SPRINT_20251229_049_BE_csproj_audit_maint_tests.md`
+
+## Working Agreement
+- 1. Use invariant parsing/formatting for persisted outputs.
+- 2. Propagate CancellationToken in async flows.
+- 3. Update `TASKS.md` and sprint statuses when work changes.