# Progress — explorer_m1_remediation_3

Last visited: 2026-10-09T05:20:15Z

## Status
Investigation and specification completed for Milestone M1 Iteration 3. Ready for parent orchestrator delegation to implementer.

## Completed Steps
- [x] Received dispatch message and created DISPATCH.md
- [x] Initialized BRIEFING.md and progress.md
- [x] Read ORIGINAL_REQUEST.md, PROJECT.md, Reviewer 2 report, Challenger 2 report
- [x] Reproduced all 3 defects (Thúy Vân leak, compound anchor neutralization, attendant substring shadowing) on live codebase
- [x] Ran baseline test suites (149 passed)
- [x] Tested and validated patched logic in simulation script
- [x] Authored exact code specification in `remediation_safeguards_final.md`
- [x] Authored 5-component handoff report in `handoff.md`
- [x] Updated BRIEFING.md
- [ ] Send final message to parent orchestrator