# AGENTS - Scanner Reachability Library

## Mission
Deliver deterministic reachability analysis, slice generation, and evidence artifacts used by Scanner and downstream policy/VEX workflows.

## Roles
- Backend engineer (.NET 10, C# preview).
- QA engineer (unit/integration tests with deterministic fixtures).

## Required Reading
- `docs/README.md`
- `docs/07_HIGH_LEVEL_ARCHITECTURE.md`
- `docs/modules/platform/architecture-overview.md`
- `docs/modules/scanner/architecture.md`
- `docs/modules/reach-graph/guides/DELIVERY_GUIDE.md`
- `docs/modules/reach-graph/guides/slice-schema.md`
- `docs/modules/reach-graph/guides/replay-verification.md`

## Working Directory & Boundaries
- Primary scope: `src/Scanner/__Libraries/StellaOps.Scanner.Reachability/`
- Tests: `src/Scanner/__Tests/StellaOps.Scanner.Reachability.Tests/`
- Avoid cross-module edits unless explicitly noted in the sprint.

## Determinism & Offline Rules
- Stable ordering for graphs, slices, and diffs.
- UTC timestamps only; avoid wall-clock nondeterminism.
- Offline-first: no external network calls; use CAS and local caches.

## Testing Expectations
- Add schema validation and round-trip tests for slice artifacts.
- Ensure deterministic serialization bytes for any DSSE payloads.
- Run `dotnet test src/Scanner/StellaOps.Scanner.sln` when feasible.

## Workflow
- Update sprint status on task transitions.
- Record decisions/risks in sprint Execution Log and Decisions & Risks.