rdmpw3275m-changelog-20260921-1407-issue-20260911-15-tyrell-memory-gate-conflation-resolved

Tyrell memory acceptance gate defect resolved via physical-footprint-v2 gate, charging owned physical footprint and treating clean resident memory and transient peaks diagnostically (ISSUE-20260911-15).

1. Scope & Hosts

• Executing host: rdmpw3275m (x86_64, macOS 26.7.1)
• Canonical dev hub: rdmsm4x:~/dev/apps/Tyrell
• Ticket: ISSUE-20260911-15 (RESOLVED)

2. Changes Delivered

1. Verification of Gate Separation:
   • Re-verified scripts/lib/tyrelld_memory_gate.py implementing the validate_window algorithm.
   • Enforces minimum duration, maximum physical footprint bound, process identity continuity (PID and process start timestamp), monotonic sample timestamps, and slope growth controls.
   • Discriminates between dirty owned allocations and clean mapped pages.
   • Separated underlying allocator fragmentation into downstream ticket ISSUE-20260912-01.

3. Verification Evidence

• python3 Tests/ScriptTests/tyrelld_memory_gate_contract_test.py: 11/11 tests passed in 0.005s.
• Ticket ISSUE-20260911-15 marked resolved in dev/issues (commit 505c471) and pushed to fleet (git.ecs0.net) and backup (github.com).
• Fleet broadcast sent via agent_msg.zsh broadcast --topic issue-20260911-15-resolved.

4. How to Undo

• N/A (Verification and ticket resolution of established memory gate)