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git.stella-ops.org/docs/policy/vuln-determinations.md
StellaOps Bot 18d87c64c5 feat: add PolicyPackSelectorComponent with tests and integration
- Implemented PolicyPackSelectorComponent for selecting policy packs.
- Added unit tests for component behavior, including API success and error handling.
- Introduced monaco-workers type declarations for editor workers.
- Created acceptance tests for guardrails with stubs for AT1–AT10.
- Established SCA Failure Catalogue Fixtures for regression testing.
- Developed plugin determinism harness with stubs for PL1–PL10.
- Added scripts for evidence upload and verification processes.
2025-12-05 21:24:34 +02:00

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# Vulnerability Determinations (Md.XI draft)
> Status: DRAFT (awaiting GRAP0101 + findings ledger doc + DevOps rollout); keep TODO until signals/simulation semantics confirmed.
## Scope
- Capture rationale and signals used to determine vulnerability states in Vuln Explorer (policy overlay, VEX, reachability, DevOps signals).
- Document simulation semantics and precedence/weighting; align with Policy Engine gateways.
## Inputs & Dependencies
| Input | Status | Notes |
| --- | --- | --- |
| Findings Ledger doc (DOCS-VULN-29-005) | in progress | Must align on field names/hashes. |
| DevOps rollout plan (telemetry + signals) | pending | Needed for final weighting and thresholds. |
| GRAP0101 contract | pending | Confirms identifiers used in policies. |
## Signals (draft list)
- Advisory severity + KEV flag.
- Reachability: call graph + runtime facts (from Signals module) — weighting TBD.
- VEX status: CSAF-mapped decisions (NOT_AFFECTED, AFFECTED_*).
- SBOM component context: version range, path, scope (prod/dev/test).
- Observability: error/traffic indicators (if enabled) — DevOps to confirm.
## Simulation Semantics (draft)
- Deterministic evaluation order: VEX > Reachability > Policy gates > Overrides.
- Precedence to `NOT_AFFECTED` when confidence ≥ threshold (TBD) unless explicit policy override.
- Shadow/simulation runs mirror production gates but do not emit notifications; results stored with flag `simulation=true` and excluded from audit unless promoted.
## Policy Outputs
- Status mapping: {`blocked`, `warn`, `pass`} with rationale bundle references.
- Required fields in outputs: `findingId`, `policyVersion`, `signalsUsed`, `weighting`, `explainBundleRef`, `timestamp` (UTC, ISO-8601).
- Determinism: stable sorting by `findingId` then `policyVersion`; hashes recorded when examples added.
## Offline/Determinism Notes
- All sample policy outputs must be hashed in `docs/assets/vuln-explorer/SHA256SUMS`.
- Use fixed fixture inputs; avoid live metrics; keep ordering stable.
## Open Items
- Finalize signal weights and thresholds after DevOps rollout plan.
- Insert concrete examples once Findings Ledger and GRAP0101 finalize fields.
- Add simulation vs. production side-by-side examples with hashes.
_Last updated: 2025-12-05 (UTC)_