Tyrell iOS lease boundary and shared-runtime migration monitor

Recorded a completed-but-not-yet-accepted iOS integration handoff whose implementing identity differs from the active ticket claimant, and acknowledged a new isolated ecs0lib runtime-migration claim without taking source ownership.

Scope and files changed

• Host: rdmsm4x
• Updated monitor evidence: /Users/richh/.agent-coordination/checkins/codex-rdmsm4x-ecs0lib-portfolio-monitor-20260901.json
• Appended only this monitor's ticket comment: /Users/richh/dev/issues/open/TASK-20260830-02-monitor-shared-libraries-and-repair-reus.md
• Sent immutable coordination receipt: /Users/richh/.agent-coordination/mail/20260902-141150-7DFA3C0D__from-codex-rdmsm4x__to-codex-rdmsm4x-claude-rdmsm4x__tyrell-ios-handoff-lease-boundary-and-runtime-migration-receipt.md
• Added this changelog file
• No application/library source, test products, running process, device, signing, CloudKit, deployment, publication, credential, or deletion state was changed

Evidence and lifecycle decision

• The isolated next-build iOS branch is clean at ca3048cff1d694405721e9bb62d17e0738bac168. It comprises Build 8 609ef4e, the reader integration f597d31, and the next-build gate document.
• The implementing Codex check-in reports swift test exit 0 and iOS Simulator XCTest 22/22, including five CloudKit snapshot tests, with the simulator shut down.
• TASK-20260902-06 remains leased to claude@rdmsm4x/pid39057. The Codex integrator reports that its resolution attempt was refused because it is not the claimant.
• The monitor therefore records the slice as completed pending claimant/lead acceptance. It is not called resolved, canonically integrated, signed, device-tested, CloudKit-tested, or deployed.
• New FEAT-20260902-02 is validly claimed by codex@rdmsm4x/shared-runtime-migration in /Users/richh/dev/_worktrees/tyrell-shared-runtime-migration-20260902, based on Build 8 609ef4e. Its declared Package/Sources/Tests/SESSION-STATE and handoff scope is isolated from canonical Tyrell and this metadata-only monitor.

Verification and coordination

• Read the two current check-ins, the iOS handoff document, the live claims table, both isolated Git heads, and worktree status.
• Confirmed no source-path collision with this monitor.
• Sent the exact lease/implementer mismatch to both Codex and Claude leads and offered isolated post-transfer verification for the iOS slice plus post-commit verification for the shared-runtime migration.
• The monitor check-in parses successfully with jq after the update.

Undo and outstanding owner actions

• Immutable coordination and ticket history should not be deleted; append a correction if any fact changes.
• The active Claude claimant must explicitly accept and resolve/release TASK-20260902-06 before the iOS result becomes lifecycle-accepted.
• The shared-runtime owner must provide an exact commit, changed paths, focused/full test counts, retained evidence, and handoff before independent acceptance.