1.6 KiB
1.6 KiB
SIGNALS-24-002 · CAS promotion checklist (v1)
Purpose: unblock CAS promotion + signed manifest rollout for callgraph storage so SIGNALS-24-002 can move from BLOCKED to implementation.
Preconditions
- CAS bucket created for
signals-callgraphswith write limited to Signals service principals. - Surface bundle mock hash recorded; real scanner cache ETA published.
- Signed manifest tooling available (sigstore or in-house signer) with add-only policy.
Steps
- Freeze manifest schema (fields:
graph_id,digest,language,source,created,signer,signature). - Generate manifests for existing callgraphs; store under
cas://signals/manifests/{graph_id}.json. - Sign each manifest; attach DSSE envelope; store under
cas://signals/manifests/{graph_id}.json.dsse. - Apply bucket policy: read-only for downstream, write for Signals service; deny deletes.
- Configure GC policy: retain manifests indefinitely; callgraph blobs keep 30d rolling unless referenced.
- Enable alerts for failed retrievals and missing manifest/DSSE pairs.
- Record hash list and signer key IDs in release notes.
Deliverables
- Policy document + proof of applied IAM
- Manifest schema JSON
- Signed manifest samples (see tests)
- Hash list of all published callgraphs (sha256)
Evidence locations (repo paths)
- Policy & schema:
docs/signals/cas-promotion-24-002.md(this file) - Sample manifest + DSSE:
tests/reachability/corpus/manifest.json(already present) maps to expected structure.
Owners
- Signals Guild (implementation)
- Platform Storage Guild (policy/approvals)
Status
- Checklist published 2025-11-19; awaiting Platform Storage approval to proceed.