# Sprint 122 - Ingestion & Evidence · 110.C) Excititor.IV

Active items only. Completed/historic work now resides in docs/implplan/archived/tasks.md (updated 2025-11-08).

[Ingestion & Evidence] 110.C) Excititor.IV
Depends on: Sprint 110.C - Excititor.III
Summary: Ingestion & Evidence focus on Excititor (phase IV).
> **Prep:** Read `docs/modules/excititor/architecture.md` and the relevant Excititor `AGENTS.md` files before updating these tasks.
Task ID | State | Task description | Owners (Source)
--- | --- | --- | ---
EXCITITOR-OBS-52-001 `Timeline events` | TODO | Emit `timeline_event` entries for every ingest/linkset change with trace IDs, justification summaries, and evidence hashes so downstream systems can replay the raw facts chronologically. Depends on EXCITITOR-OBS-51-001. | Excititor Core Guild (src/Excititor/__Libraries/StellaOps.Excititor.Core)
EXCITITOR-OBS-53-001 `Evidence snapshots` | TODO | Build locker payloads (raw doc, normalization diff, provenance) and Merkle manifests so sealed-mode sites can audit evidence without Excititor reinterpreting it. Depends on EXCITITOR-OBS-52-001. | Excititor Core Guild, Evidence Locker Guild (src/Excititor/__Libraries/StellaOps.Excititor.Core)
EXCITITOR-OBS-54-001 `Attestation & verification` | TODO | Attach DSSE attestations to every evidence batch, verify chains via Provenance tooling, and surface attestation IDs on timeline events. Depends on EXCITITOR-OBS-53-001. | Excititor Core Guild, Provenance Guild (src/Excititor/__Libraries/StellaOps.Excititor.Core)
EXCITITOR-ORCH-32-001 `Worker orchestration` | TODO | Adopt the orchestrator worker SDK for Excititor jobs, emitting heartbeats/progress/artifact hashes so ingestion remains deterministic and restartable without reprocessing evidence. | Excititor Worker Guild (src/Excititor/StellaOps.Excititor.Worker)
EXCITITOR-ORCH-33-001 `Control compliance` | TODO | Honor orchestrator pause/throttle/retry commands, persist checkpoints, and classify error outputs to keep ingestion safe under outages. Depends on EXCITITOR-ORCH-32-001. | Excititor Worker Guild (src/Excititor/StellaOps.Excititor.Worker)
EXCITITOR-POLICY-20-001 `Policy selection APIs` | TODO | Provide VEX lookup APIs (PURL/advisory batching, scope filters, tenant enforcement) that Policy Engine uses to join evidence without Excititor performing any verdict logic. Depends on EXCITITOR-AOC-20-004. | Excititor WebService Guild (src/Excititor/StellaOps.Excititor.WebService)
EXCITITOR-POLICY-20-002 `Scope-aware linksets` | TODO | Enhance linksets with scope resolution + version range metadata so Policy/Reachability can reason about applicability while Excititor continues to report only raw context. Depends on EXCITITOR-POLICY-20-001. | Excititor Core Guild (src/Excititor/__Libraries/StellaOps.Excititor.Core)
EXCITITOR-RISK-66-001 `Risk gating feed` | TODO | Publish risk-engine ready feeds (status, justification, provenance) with zero derived severity so gating services can reference Excititor as a source of truth. Depends on EXCITITOR-POLICY-20-002. | Excititor Core Guild, Risk Engine Guild (src/Excititor/__Libraries/StellaOps.Excititor.Core)