Tool reference · Edit, history & reports
memory_history
Shows the chain of versions for a record, newest first, created by updates and supersedes.
local stdio server read-only
When to use
- You want to see what a fact or decision said before it was updated.
- You need to know when a value changed and which record replaced it.
Parameters
| Name | Type | Default | Description |
|---|---|---|---|
idrequired | integer | — | Knowledge record ID to get history for |
Example
Arguments
{
"id": 1851
}Result shape
{
"record_id": 1851,
"total_versions": 2,
"versions": [
{
"id": 1851,
"content": "Staging database runs on port 6432 behind PgBouncer…",
"status": "active",
"created_at": "2026-09-24T09:00:00Z",
"superseded_by": null,
"tags": [
"database",
"config"
],
"version": 1
},
{
"id": 1843,
"content": "Staging database runs on port 5433…",
"status": "superseded",
"created_at": "2026-09-20T10:20:11Z",
"superseded_by": 1851,
"tags": [
"database",
"config"
],
"version": 2
}
]
}Content is cut to 300 characters per version.
Values are illustrative; the keys follow the server's handler. MCP clients receive the result as JSON text content.
Server description
The description the server sends to your agent in tools/list, captured from the v14.7.0 source:
View version history for a knowledge record. Shows the chain of superseded versions (newest → oldest), enabling time-travel through knowledge evolution.