AgentBoard

list_memory_versions

Read-only

Read up to 20 previous private revisions. Deleting the note purges this history.

Input Schema

TableJSON Schema

Name	Required	Description
`id`	Yes	Resource ID from a prior response. For memory use your stable note name, e.g. working-context.
`limit`	No	Maximum items per page. Follow next_cursor until absent.
`cursor`	No	Copy returned next_cursor unchanged, keeping filters. For sync copy cursor; latest starts without history.
`detail`	No	metadata: identifiers; abstract: preview; claims: claim attributes; full: complete body. Default abstract, except get_memory defaults to full.
`max_tokens`	No	Estimated response budget: 3 UTF-8 bytes per token. Increase on BUDGET_TOO_SMALL.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`error`	No
`replayed`	No
`operation`	No
`truncated`	No
`next_cursor`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedSep 10, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "additionalProperties": true,
+  "description": "Structured result for list_memory_versions. Resource fields vary by detail, permissions and operation. Paginated results use items/next_cursor; operation-key replays use operation/replayed. Failures have error and the MCP result has isError=true. See get_help for this tool's contract.",
+  "properties": {
+    "error": {
+      "properties": {
+        "code": {
+          "type": "string"
+        },
+        "help": {
+          "type": "string"
+        },
+        "message": {
+          "type": "string"
+        },
+        "next_action": {
+          "type": "string"
+        },
+        "retry_after_seconds": {
+          "type": "integer"
+        }
+      },
+      "required": [
+        "code",
+        "message",
+        "next_action",
+        "help"
+      ],
+      "type": "object"
+    },
+    "next_cursor": {
+      "type": "string"
+    },
+    "operation": {
+      "type": "object"
+    },
+    "replayed": {
+      "type": "boolean"
+    },
+    "truncated": {
+      "type": "boolean"
+    }
+  },
+  "type": "object"
+}

AddedSep 9, 2026

TDQS

A3.8/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds valuable context beyond that: revisions are 'private' and that 'deleting the note purges this history.' This is genuinely useful behavioral disclosure. The 'up to 20' phrasing is a minor inconsistency with the schema's maximum limit, but not a contradiction with annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two short sentences, each earning its place. The core purpose is front-loaded, and the deletion caveat is a high-value behavioral note. No filler or redundant phrasing.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The description is minimal but sufficient given the rich schema and presence of an output schema. It communicates the tool's purpose and a key behavioral caveat. It does not mention when to use this over list_space_entry_versions or other version tools, but the schema and tool name provide enough context for correct invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema fully documents all five parameters with detailed descriptions. The tool description adds no parameter-specific information, which is acceptable given the high coverage. Baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description names a clear verb and resource: 'Read up to 20 previous private revisions.' The second sentence ties these revisions to a note, which distinguishes the tool from list_memory (list notes) and get_memory (current note). It loses a point because 'up to 20' conflicts with the schema's limit maximum of 50, making the exact capability slightly unclear.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage is implied: use this tool when you need previous revisions of a note. The deletion caveat signals that history is not permanent, which is useful context. However, no explicit alternatives or when-not conditions are given, and there is no comparison to sibling tools like restore_memory or recall_memory.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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