# Sprint 143 - Runtime & Signals · 140.C) Signals

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

[Runtime & Signals] 140.C) Signals
Depends on: Sprint 120.A - AirGap, Sprint 130.A - Scanner
Summary: Runtime & Signals focus on Signals — reachability ingestion and scoring.
Notes:
- 2025-10-29: Skeleton live with scope policies, stub endpoints, and integration tests; sample configuration committed under `etc/signals.yaml.sample`.
- 2025-10-29: JSON parsers for Java/Node.js/Python/Go implemented; artifacts stored on filesystem with SHA-256 and callgraphs upserted into Mongo.
Task ID | State | Task description | Owners (Source)
--- | --- | --- | ---
SIGNALS-24-001 | DOING (2025-11-07) | Stand up Signals API skeleton with RBAC, sealed-mode config, DPoP/mTLS enforcement, and `/facts` scaffolding so downstream ingestion work can begin. Dependencies: AUTH-SIG-26-001. | Signals Guild, Authority Guild (src/Signals/StellaOps.Signals/TASKS.md)
SIGNALS-24-002 | DOING (2025-11-07) | Implement callgraph ingestion/normalization (Java/Node/Python/Go) with CAS persistence and retrieval APIs to feed reachability scoring. Dependencies: SIGNALS-24-001. | Signals Guild (src/Signals/StellaOps.Signals/TASKS.md)
SIGNALS-24-003 | BLOCKED (2025-10-27) | Implement runtime facts ingestion endpoint and normalizer (process, sockets, container metadata) populating `context_facts` with AOC provenance.<br>2025-10-27: Depends on `SIGNALS-24-001` for base API host and authentication plumbing. | Signals Guild, Runtime Guild (src/Signals/StellaOps.Signals/TASKS.md)
> 2025-11-07: Waiting on SIGNALS-24-001 / SIGNALS-24-002 DOING work to land before flipping this to DOING.
> 2025-11-07: Upstream SIGNALS-24-001 / SIGNALS-24-002 now DOING; this flips to DOING once host + callgraph ingestion merge.
> 2025-11-08: Targeting 2025-11-09 merge for SIGNALS-24-001/002; schema + AOC contract drafted so SIGNALS-24-003 can move to DOING immediately after those PRs land (dependencies confirmed, none missing).
SIGNALS-24-004 | BLOCKED (2025-10-27) | Deliver reachability scoring engine producing states/scores and writing to `reachability_facts`; expose configuration for weights. Dependencies: SIGNALS-24-003.<br>2025-10-27: Upstream ingestion pipelines (`SIGNALS-24-002/003`) blocked; scoring engine cannot proceed. | Signals Guild, Data Science (src/Signals/StellaOps.Signals/TASKS.md)
SIGNALS-24-005 | BLOCKED (2025-10-27) | Implement Redis caches (`reachability_cache:*`), invalidation on new facts, and publish `signals.fact.updated` events. Dependencies: SIGNALS-24-004.<br>2025-10-27: Awaiting scoring engine and ingestion layers before wiring cache/events. | Signals Guild, Platform Events Guild (src/Signals/StellaOps.Signals/TASKS.md)