Macro-3 Channel Agent-API Risk Map — R2-B2 (2026-06-19)

Date: 2026-06-19 · Workstream: R2-B2-MACRO-3-OPTION-D-OWNER-DELEGATE-DECISION-PACKAGE-2026-06-19 (Deliverable 10 of 60) · Editorial revision: rev1 Class: channel risk map (agent-api) · READ-ONLY · NON-ENACTING · NON-AUTHORIZING · NO write performed.

Metadata convention. Editorial revision (rev1) only. Storage revision/content_length authoritative at read time.

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0. Status and non-authorization

STATUS: PASS — engineering / decision-prep. The risks the Owner accepts if agent-api is later chosen. Engineering PASS ≠ authority PASS. Default: HOLD.

1. Purpose

State agent-api's downside honestly so the case (D8) and the forced-pick lean are not read in isolation.

2. Sources / evidence read

Macro-2 agent-api memo, weighted comparison, channel proof-gap closure; FRESH switches OFF / 0 birth-bound. Main process, no reader-agents.

3. Accepted baseline (carried)

Governance-aligned ≠ ready; the larger surface is the trade.

4. Evidence / analysis — risk table

#	Risk	Severity	Note
AA-R1	Contract promotion scope creep — a birth contract could over-reach beyond inspect-produce	HIGH	B2-only lock; one-column-per-inspector
AA-R2	Switch-flip authority — turning execute_enabled/real_run_enabled on is a powerful, auditable act	HIGH	must stay Owner-gated; DRY_RUN first
AA-R3	DRY_RUN bypass — a mis-built contract could escape dry-run	MED	proof plan D12 obligation
AA-R4	Larger blast radius than host cron — touches the shared executor service	MED	weigh vs HC-R1 observability gain

5. Recommendation / matrix / result

If agent-api is chosen, AA-R1…AA-R4 must be mitigated by a DRY_RUN-gated, inspect-only contract proven in staging. Not selected here.

6. Owner-gated future work

Contract design + DRY_RUN proof are Owner-gated (actual B2 TD), not here.

7. What remains unresolved

All four risks remain OPEN; 0 birth-bound contracts exist today.

8. Ready for GPT/Codex review

Yes — Codex should weigh AA-R4 (blast radius) against the observability gain that motivates the lean.