Importance: Medium. Tasks: run complete; 3 policy items pending (not done).

What was done

Daily canonical→scheduled mirror sync. All 5 mirror-map entries compared by SHA256 and found byte-identical (zero drift):

• post-run-qa-reflection/SKILL.md → _post-run-qa-reflection.md (partial) — MATCH
• sail-kb-daily-pulse/SKILL.md → Scheduled copy (full-skill) — MATCH
• sail-kb-daily-pulse/build_report.py → Scheduled copy (binary) — MATCH
• admin SKILL-PRELOAD-AND-DRIFT-GUARD.md → _skill-preload.md (binary) — MATCH
• admin SKILL-PRELOAD-AND-DRIFT-GUARD.md → Codex/_fallback copy (binary) — MATCH

No merge, backup, commit, or push needed. Skills_Library absent (deprecation landed) — nothing to cross-check. Stale-lock janitor: no git locks. Cross-tool surface check: clean, no flags.

Why the session ended

Completed — all task steps ran. This is an unattended scheduled run; ended after report + Notion export.

Findings flagged (pending Sam review)

1. notion_paged_query.py mirror-map gap (real drift). Code sibling of the mirrored build_report.py inside sail-kb-daily-pulse, but NOT in the mirror map. Destination copy is uncommitted and drifts from canonical (b562… vs 2468…). Partial sync risks mismatched module versions in the sail-kb-daily-pulse task. Recommend adding it to the map (binary mode). Not auto-synced this run (destination had uncommitted edits; unattended overwrite would be destructive).
2. discover_unmapped_partials.sh missing. SKILL Step 4 references it but it is absent from the skill folder; every run silently degrades to a manual scan. Recommend restoring the script or removing the reference.
3. daily-repo-health-check not-in-map exception. Canonical is an 886-byte pointer stub; Scheduled copy is the full 19KB task prompt. Intentional divergence, not drift. Recommend recording a deliberate-exception note so it stops re-flagging.

Recommended next actions

• Decide on P1 (add notion_paged_query.py to mirror map + reconcile drift direction).
• Decide on P2 (restore discover script or drop reference).
• Decide on P3 (log daily-repo-health-check exception in the SKILL).

Handoff for next agent