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StellaOps Policy Engine
Policy Engine compiles and evaluates Stella DSL policies deterministically, producing explainable findings with full provenance.
Responsibilities
- Compile
stella-dsl@1packs into executable graphs. - Join advisories, VEX evidence, and SBOM inventories to derive effective findings.
- Expose simulation and diff APIs for UI/CLI workflows.
- Emit change-stream driven events for Notify/Scheduler integrations.
Key components
StellaOps.Policy.Engineservice host.- Shared libraries under
StellaOps.Policy.*for evaluation, storage, DSL tooling.
Integrations & dependencies
- MongoDB findings collections, RustFS explain bundles.
- Scheduler for incremental re-evaluation triggers.
- CLI/UI for policy authoring and runs.
Operational notes
- DSL grammar and lifecycle docs in ../../policy/.
- Observability guidance in ../../observability/policy.md.
- Governance and scope mapping in ../../security/policy-governance.md.
- Readiness briefs: ../policy/secret-leak-detection-readiness.md, ../policy/windows-package-readiness.md.
- Readiness briefs: ../scanner/design/macos-analyzer.md, ../scanner/design/windows-analyzer.md, ../policy/secret-leak-detection-readiness.md, ../policy/windows-package-readiness.md.
- Ruby capability predicates design: ./design/ruby-capability-predicates.md.
Backlog references
- DOCS-POLICY-20-001 … DOCS-POLICY-20-012 (completed baseline).
- DOCS-POLICY-23-007 (upcoming command updates).
Epic alignment
- Epic 2 – Policy Engine & Editor: deliver deterministic evaluation, DSL infrastructure, explain traces, and incremental runs.
- Epic 4 – Policy Studio: integrate registry workflows, simulation at scale, approvals, and promotion semantics.