{
  "status": "PREP-ONLY; no validation performed",
  "edited_files": [
    "docs/KNOWN-HAZARDS.md",
    "docs/STORAGE.md",
    "docs-site/src/serving/overview.md",
    "docs-site/src/serving/attachments.md"
  ],
  "contract_changes": [
    "STORAGE.md now owns the detailed writer-serialization contract: separate broker/brain processes, fresh fs2-exclusive File guard on full-path-appended .lock sentinel, acquire before fresh load and retain through mutation/snapshot effects/explicit save, fail closed, non-reentrant, never unlink sentinel or lock replaced registry inode.",
    "Distinguished lock-free atomic-snapshot publication from writer mutual exclusion; documented explicit save/no-op behavior and activation requiring both running writer implementations.",
    "Added KNOWN-HAZARDS §6.14 with doc->REQ-HAZARD-SERVE-REGISTRY-LOST-UPDATE and natural WEB registry, attachment, and audience requirement references.",
    "Preserved attachment unlink-before-save ordering, user-source protection, no-op reaper behavior, and unchanged TTL/schema/CLI semantics; concise cross-links connect authoritative contract, hazard, and user-facing explanations.",
    "Recorded source-proven lost-update defect versus inferred original schedule, 1/10 serial-consumer cohort as a sample rather than probability floor, and absence of fixed-code validation."
  ],
  "constraints_observed": "Edited only the four owned existing Markdown files in the assigned worktree. No new files, commands, builds, tests, formatters, linters, docs generation, trace checks, commits, or runtime measurements."
}