# Attribute GC — TriliumNext Maintenance Tool

Scans all notes in your TriliumNext database for broken relations, unused labels, rare attributes, and near-duplicate names. Preview and batch-delete them — **deletions persist**.

> **v2.0** — Rewritten as a JS Frontend note with full `api.runOnBackend()` access. Scan and delete both work end-to-end on TriliumNext. The previous HTML Render Note approach (v1.x) could only detect — deletion did not persist. See [Why this works](#why-this-works).

## Features

- **Full scan** — SQL-backed via `api.sql.getRows`. Classifies every label and relation by usage count and health.
- **Broken relation detection** — Relations pointing to deleted or missing target notes.
- **Rare attribute flagging** — Attributes used ≤2 times, plus temp/draft/test patterns.
- **Semantic duplicate finder** — Levenshtein distance to surface near-identical names (`pipeline` vs `pipelne`, `autor` vs `autores`).
- **Dry run mode** — Toggle on to preview what would be deleted without making changes.
- **Batch deletion** — Auto-select all problematic attributes, then delete in one click.
- **Protected attributes** — 50+ system/internal labels and relations are locked from deletion.
- **Theme-aware** — Uses Trilium CSS variables, matches your theme automatically.

## Installation

1. Create a **JS Frontend** code note in TriliumNext
2. Paste the full content of `attribute-gc.js`
3. Choose your mode:
   - **Right panel widget**: add label `#widget`, reload (Ctrl+R), open any note
   - **Full-page Render Note**: create a Render Note, add relation `~renderNote` → JS Frontend, open the Render Note

## Usage

1. Click **Escanear** — stats dashboard appears with attribute counts
2. Filter by status (**Quebrados**, **Raros**, **Sem uso**, **Sistema**, **Saudáveis**) or search by name
3. Click **Auto-selecionar** to check all non-system problematic attributes, or tick individual rows
4. **Toggle Dry Run OFF** (yellow banner disappears)
5. Click **Executar limpeza** → confirm — attributes are permanently removed

The individual **remover** button on each row works the same way (skips the batch dialog).

## Compatibility

| Environment | Scan | Delete |
|---|---|---|
| **TriliumNext** | `api.sql.getRows` | `getNotesWithLabel` / `removeLabel` |
| **Classic Trilium** | `api.sql.getRows` | `getNotesWithLabel` / `removeLabel` |

Both use the same backend path — `api.runOnBackend()` with the standard entity API. Becca stays in sync, changes persist.

## Why this works

v1.x used an **HTML Render Note** with inline `<script>` tags. TriliumNext sandboxes HTML notes — `api` is not available, `fetch()` calls return 401, froca mutations are local-only, and all deletion attempts failed to persist.

v2.0 is a **JS Frontend note** — the standard Trilium extension format (same as Canvas Linker, Word Count, Task Planner). It has direct access to:

- `api.runOnBackend()` — execute backend code
- `api.sql.getRows()` — SQL queries for fast aggregation
- `api.getNotesWithLabel()` / `api.getNotesWithRelation()` — find notes by attribute
- `note.removeLabel()` / `note.removeRelation()` — delete through the entity lifecycle

No hacks, no workarounds. The same pattern used by every other Trilium plugin.

## How it works

### Scan

```js
api.runOnBackend(() => {
    // SQL aggregation — one query, instant results
    api.sql.getRows(`SELECT name, type, COUNT(*) ... GROUP BY name, type`);
    // Broken relation detection
    api.sql.getRows(`SELECT ... LEFT JOIN ... WHERE target IS NULL`);
});
```

### Delete

```js
api.runOnBackend((names, types) => {
    for (const name of names) {
        const notes = api.getNotesWithLabel(name);  // or getNotesWithRelation
        for (const note of notes) {
            note.removeLabel(name);  // goes through Becca → persisted to DB
        }
    }
}, [names, types]);
```

### Context detection

The same JS file auto-detects whether it's loaded as a widget (`#widget` label) or a render note dependency (`~renderNote` relation), adjusting layout and sizes accordingly.

## Protected attributes

`template`, `workspace`, `iconClass`, `cssClass`, `run`, `runOnInstance`, `runAtStartup`, `shareAlias`, `shareHiddenFromTree`, `archived`, `pinned`, `bookmarked`, `weight`, `color`, `renderNote`, `child`, `runOnNoteCreation`, `noteType`, `mime`, `shareCss`, `shareJs`, `shareRaw`, `shareDisallowRobotIndexing`, `keyboardShortcut`, `label`, `relation`, `promoted`, `multiplicity`, `labelDefinition`, `relationDefinition`, `toc`, `readOnly`, `excludeFromExport`, `appCss`, `appTheme`, `sorted`, `sortDirection`, `sortFoldersFirst`, `top`, `hide`, `hidePromotedAttributes`, `disableVersioning`, `calendarRoot`, `dateNote`, `datePattern`, `inbox`, `sqlConsole`, `searchHome`, `hoistedNote`, `similarNotes`, `versioningLimit`, `mapRootNoteId`, `system`, `root`

---

🌐 **Idioma / Language**: A interface está em português brasileiro (PT-BR). Para traduzir, abra o arquivo `attribute-gc.js` no Trilium e substitua as strings de texto.

## License

MIT


---

### Images  

![screen capture](imagens/garbage-3-.webp)