# Sprint 144 - Runtime & Signals · 140.D) Zastava

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

[Runtime & Signals] 140.D) Zastava
Depends on: Sprint 120.A - AirGap, Sprint 130.A - Scanner
Summary: Runtime & Signals focus on Zastava — observer and webhook Surface integration.
Task ID | State | Task description | Owners (Source)
--- | --- | --- | ---
ZASTAVA-ENV-01 | DONE | Adopt Surface.Env helpers for cache endpoints, secret refs, and feature toggles. | Zastava Observer Guild (src/Zastava/StellaOps.Zastava.Observer)
ZASTAVA-ENV-02 | DONE | Switch to Surface.Env helpers for webhook configuration (cache endpoint, secret refs, feature toggles). Dependencies: ZASTAVA-ENV-01. | Zastava Webhook Guild (src/Zastava/StellaOps.Zastava.Webhook)
ZASTAVA-SECRETS-01 | DONE | Retrieve CAS/attestation access via Surface.Secrets instead of inline secret stores. | Zastava Observer Guild, Security Guild (src/Zastava/StellaOps.Zastava.Observer)
ZASTAVA-SECRETS-02 | DONE | Retrieve attestation verification secrets via Surface.Secrets. Dependencies: ZASTAVA-SECRETS-01. | Zastava Webhook Guild, Security Guild (src/Zastava/StellaOps.Zastava.Webhook)
ZASTAVA-SURFACE-01 | DONE | Integrate Surface.FS client for runtime drift detection (lookup cached layer hashes/entry traces).<br>2025-10-24: Observer unit tests pending; `dotnet restore` needs offline copies of `Google.Protobuf`, `Grpc.Net.Client`, and `Grpc.Tools` in `local-nuget` before verification.<br>2025-11-27: All tests pass; Surface.FS integration verified. | Zastava Observer Guild (src/Zastava/StellaOps.Zastava.Observer)
ZASTAVA-SURFACE-02 | DONE | Enforce Surface.FS availability during admission (deny when cache missing/stale) and embed pointer checks in webhook response. Dependencies: ZASTAVA-SURFACE-01. | Zastava Webhook Guild (src/Zastava/StellaOps.Zastava.Webhook)