Mem0 Forget

Delete specific memories from mem0.

Execution

Step 1: Parse input

The user provides either:

• A search query: /mem0-forget auth module decisions
• A memory ID: /mem0-forget <memory_id>

If no argument, ask: "What should I forget? Provide a search query or memory ID."

Step 2: Find memories

If memory ID provided (looks like a UUID or hex string):

• Call get_memory with the ID to verify it exists.
• Show: Found: "<memory content first 120 chars>" (created <date>)

If search query provided:

• Call search_memories with:
• query=<user's query>
• filters={"AND": [{"user_id": "<active_user_id>"}, {"app_id": "<project_id>"}]}
• top_k=10
• Show numbered list:

  Found <N> memories matching "<query>":
  1. <content, 120 chars> (type: <type>, created: <date>) [ID: <short_id>]
  2. ...

Step 3: Confirm

Ask: "Delete which memories? Enter numbers (e.g., 1,3,5), 'all', or 'cancel'."

For a single memory ID, ask: "Delete this memory? [y/N]"

Never delete without confirmation. This is destructive.

Step 4: Delete

For each confirmed memory, call delete_memory with the memory ID.

Step 5: Report

Deleted <N> memories.

If any deletions failed, report which ones and why.

Undo recent writes

If the user says "undo last N memories" or "undo last write":

1. Check the MEM0_SESSION_ID environment variable (set by the plugin's shell.env hook).
2. If MEM0_SESSION_ID is set, call search_memories with:

• query="recently added"
• filters={"AND": [{"user_id": "<active_user_id>"}, {"app_id": "<project_id>"}, {"metadata": {"session_id": "<MEM0_SESSION_ID>"}}]}
• top_k=20

1. Sort results by creation time descending and show the last N entries (default 1). Ask for confirmation.
2. Delete confirmed entries via delete_memory.

If MEM0_SESSION_ID is not set or the search returns no results, tell the user: "No recent memory IDs tracked this session. Try /mem0-tour to browse recent memories, or /mem0-forget <search query> to find specific ones."

Output formatting

IMPORTANT: Do NOT use markdown in your output. OpenCode TUI renders text verbatim — markdown like bold, ## headers, and | table | syntax appears as raw characters. Use plain text with indentation for structure. Use dashes for lists. Use spaces to align columns instead of markdown tables.