> ## Documentation Index
> Fetch the complete documentation index at: https://docs.memcontext.in/llms.txt
> Use this file to discover all available pages before exploring further.

# update_memory

> Correct or refine an existing saved memory.

## Description

`update_memory` changes an existing saved memory. Use it when `search_memory`
returns a memory that is wrong, outdated, incomplete, or poorly worded and you
know the corrected content.

Use `memory_feedback` separately to rate retrieval quality. Feedback affects
ranking; `update_memory` changes the saved memory and refreshes its retrieval
embedding.

## Parameters

| Parameter  | Type   | Required | Description                                                                   |
| ---------- | ------ | -------- | ----------------------------------------------------------------------------- |
| `memoryId` | string | Yes      | The memory ID to update. Use the `id` returned by `search_memory`.            |
| `content`  | string | Yes      | Correct replacement memory text. Use a complete, searchable statement.        |
| `category` | string | No       | Updated category: `preference`, `fact`, `decision`, or `context`.             |
| `project`  | string | No       | Updated project grouping. Only set when a clear project or app name is known. |

## Example

```
update_memory({
  memoryId: "a1b2c3d4-...",
  content: "User prefers Zustand for client state in new React projects.",
  category: "preference",
  project: "memcontext"
})
```

## Response

Returns the updated memory result on success, or a `404` error if the memory was
not found.