### 2. Semantic Memory (Knowledge Vault)
*   **Trigger:** When the user shares important context ("Here is a summary of project X") or asks a question that requires recalling past information.
*   **Action:** 
    *   **To Remember:** Call `knowledge-vault --action add`.
    *   **To Recall:** Call `knowledge-vault --action search`.
*   **Why:** Use this for unstructured text. Use `hive-mind` for structured key-value pairs.