Archived Decisions — 2026-08-01

MC-DEC-20260729-ef44900b — Use one mutation guard and separate private execution plans from public#

Status: superseded Superseded-By: MC-DEC-20260801-07000007 Scope: project Subject: MC-SUBJ-20260729-7e5c3a91 Facet: architecture Evidence:

• user-confirmed Supersedes: MC-DEC-20260728-5ea0e265

Decision: Use one mutation guard and separate private execution plans from public previews.

Reason: A single bootstrap-to-project lock handoff prevents identity races across every writer; private state permissions and redacted public plans preserve concurrency and erasure boundaries.

MC-DEC-20260728-5ea0e265 — Adopt Protocol 0.6 evidence admission and mutation safety.#

Status: superseded Superseded-By: MC-DEC-20260729-ef44900b Scope: project Subject: MC-SUBJ-20260729-7e5c3a91 Facet: architecture Evidence:

• user-confirmed

Decision: Use Protocol 0.6 evidence admission, stable Subject/Facet conflict identity, explicit erasure boundaries, repo-external preview seeds, lock-time plan rebuilds, and deterministic budget states.

Reason: This keeps provenance, ownership, forgetting scope, and stale-write rejection deterministic and reviewable.