# Batch I Worker A: 5-29 overlay reconciler read-only audit

Project root: `/mnt/Data1T/mnote-worktrees/0525-i-worker-a-5-29-overlay-reconciler-readonly`

You are a read-only audit worker. Do not modify files, do not run formatters that write files, do not commit, and do not clean unrelated files.

## Goal

Audit the next smallest safe extraction boundary around editor overlay reconciliation after the existing splits:

- `editor_runtime/dom_selection.rs`
- `editor_runtime/overlays.rs`
- `editor_runtime/editor_focus.rs`
- `editor_runtime/block_hover_state.rs`
- `editor_runtime/block_menu_overlay.rs`
- `editor_runtime/block_dnd.rs`

Focus only on:

- `sync_editor_overlay_state`
- `try_sync_editor_overlay_state`
- their immediate callers
- the signal groups they close/reset

## Questions to answer

1. Is there a pure helper smaller than moving the whole `sync_editor_overlay_state` / `try_sync_editor_overlay_state` pair?
2. Which state transitions must stay in `lib.rs` because they are Leptos signal orchestration?
3. Would a small struct such as `OverlayCloseSet` / `EditorOverlaySyncResult` reduce risk, or would it add unnecessary abstraction?
4. What exact module/function signature should Codex implement next, if any?
5. What tests/smoke should Codex run after the implementation?

## Required checks

Run only read-only commands:

```bash
git status --short
cargo check --manifest-path rust/spikes/leptos-tiptap-spike/Cargo.toml
```

If `cargo check` is blocked by missing `reference-code/`, report that instead of retrying repeatedly.

## Required output

- `modified_files`: must be `[]`
- recommended extraction slice or explicit "do not extract yet"
- files/functions inspected
- verification commands and results
- risks / do-not-move list
- `process-handoff.md`, `process-handoff.json`, `result.json`, and `final.md` through the runner