---
id: ML-169.4
title: "Phase 1: Async message audit (LiveComponent → Parent handle_info coverage)"
status: Done
assignee: []
created_date: "2026-05-08 08:59"
updated_date: "2026-05-19 08:50"
labels:
  - audit
  - ready
dependencies: []
references:
  - audits/phase1-async-message-coverage
parent_task_id: ML-169
priority: medium
ordinal: 3000
---

## Description

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Audit every LiveComponent message producer against its parent LiveView's handle_info clauses. Identify any missing or dead handlers.

Pre-flagged concern: the Release component renders in CollectionLive.Show with `on_release_loaded={:release_loaded}`, but CollectionLive.Show has no `handle_info({:release_loaded, _})` clause. Needs investigation — is this a dead message or a missing handler?

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## Acceptance Criteria

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- [x] #1 Every send(self(), ...) call site in lib/music_library_web/components/ matched against handle_info in its consumer LiveViews
- [x] #2 Release component's {:release*loaded, *} message traced end-to-end in CollectionLive.Show context — either confirmed harmless or flagged as bug
- [x] #3 All 11 message-producing components verified: RecordForm, AddRecord, Chat, Release, ArtistLive.Form, RecordSetLive.Form, RecordSetLive.RecordPicker, ScrobbleRulesLive.Form, ScrobbledTracksLive.Form, OnlineStoreTemplateLive.Form, ScrobbleRulePicker
- [x] #4 Any send/2 calls using non-{**MODULE**, \_} patterns found and verified
- [x] #5 Findings report written as a Backlog.md document with file:line references, severity ratings, and fix recommendations
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## Implementation Notes

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## Audit Execution Notes

### Method

- Grepped all `send(self(), ...)` call sites in `lib/music_library_web/components/` and `lib/music_library_web/live/` (excluding test files)
- Grepped all `handle_info` clauses in `lib/music_library_web/live/`
- Cross-referenced every `send(self())` call site against parent LiveView `handle_info` clauses
- Verified component render locations to confirm the consumer LiveView is the correct parent
- Verified all module aliases match (e.g., AddRecord = MusicLibraryWeb.Components.AddRecord)

### Pre-flagged concern: Release component in CollectionLive.Show

**RESULT: HARMLESS** — The `notify_release_loaded/2` function in release.ex checks `socket.assigns[:on_release_loaded]`. When nil (CollectionLive.Show doesn't set it), the function returns `:ok` without calling `send/2`. No dead message, no missing handler. The Release component is rendered at line 304 in CollectionLive.Show with `show_print?={true}` and `timezone={@timezone}` but no `on_release_loaded` attribute, which is intentional.

### Key findings

- 11/11 components fully verified with 0 missing handlers
- 3 non-MODULE patterns found, all verified safe
- Release component's dynamic tag pattern works but could benefit from type-safe refactoring (low priority)
- RecordSetLive.Show correctly only handles `:updated` since it renders Form only in `:edit` mode

Full report at @audits/phase1-async-message-coverage

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## Final Summary

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## Result: PASS — No missing handlers or dead messages found

### Coverage

- **14 `send(self(), ...)` call sites** across 11 components all matched to corresponding `handle_info` clauses
- **0 missing handlers**, **0 dead messages**
- **3 non-`{__MODULE__, _}` patterns** all verified safe:
  1. Release component dynamic tag — safe, nil-guarded
  2. ScrobbleLive.Index self-send — has matching handler
  3. ShowToast hook — standard LiveView attach_hook pattern

### Pre-flagged concern resolved

Release component in CollectionLive.Show: **HARMLESS**. The `notify_release_loaded/2` checks `socket.assigns[:on_release_loaded]` and skips sending when nil. CollectionLive.Show intentionally doesn't set `on_release_loaded`.

### Full report

Documented at `audits/phase1-async-message-coverage` with file:line references, severity ratings, and all 11 components verified.

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