---
name: forget
description: Hard reset for a specific task type. Deletes playbook, confidence entry, evaluations, and classifier data.
disable-model-invocation: true
user-invocable: true
argument-hint: "<task-type>"
---

# ALM Forget

Perform a hard reset for a specific task type, removing all learned data for it.

## Instructions

### Validate Argument

The task type to forget is: `$ARGUMENTS`

If no argument is provided (empty), do NOT delete anything. Instead:
1. Read `~/.claude/alm/confidence.json` to list known task types
2. Also check `~/.claude/alm/playbooks/` for any playbook files
3. Output the list: `[ALM] Available task types: code-refactoring, bug-fixing, ...`
4. Ask: `Which task type do you want to forget? Run /alm:forget <task-type>`
5. Stop here.

If the argument doesn't match any known task type (not in confidence.json AND no playbook file AND no evaluations), output: `[ALM] Unknown task type: "{argument}". Run /alm:forget without arguments to see available types.`

### Perform Deletion

Once you have a valid task type, delete the following:

1. **Playbook:** Delete `~/.claude/alm/playbooks/{task-type}.md` if it exists
2. **Confidence entry:** Read `~/.claude/alm/confidence.json`, remove the key for this task type, write it back
3. **Taxonomy:** If `~/.claude/alm/playbooks/_index.md` exists, remove the task type entry from it
4. **Evaluations:** For each `.jsonl` file in `~/.claude/alm/evaluations/`, filter out lines where `taskType` matches, rewrite the file. Delete any files that become empty.
5. **Classifier:** If `~/.claude/alm/classifier/model.json` exists, delete it. Output a note: `TF-IDF model deleted. Run /alm:reflect to rebuild it.`
6. **Reflect queue:** If `~/.claude/alm/reflect-queue.json` exists, remove the task type entry from it

### Report

Output a summary:
```
[ALM] Forgot task type: {task-type}
  Deleted: playbook, {N} evaluation records, confidence entry
  TF-IDF model deleted — run /alm:reflect to rebuild
```