Kosmodrom

memory_delete

Destructive

Deletes an agent memory record at the user's request: authors their own, moderators (memory:moderate) any but user-level ones. Rejected if the record changed since the given version.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "ID": "<ID>",
      "version": "<version>"
    },
    "name": "memory_delete"
  }
}

Input Schema

Name	Required	Description	Default
`ID`	Yes	Record ID.
`version`	Yes	Record version the change is based on.

Schema Changelog

Changes observed during successful MCP inspections.

Changed3 schema fields changedOct 8, 2026
- removedInput schema / $schema
```
Removed value: -"http://json-schema.org/draft-07/schema#"
```
- removedInput schema / properties / version / maximum
```
Removed value: -9007199254740991
```
- removedInput schema / properties / version / minimum
```
Removed value: --9007199254740991
```
First observedOct 6, 2026

TDQS

A4.5/5.0

Behavior5/5

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

Annotations already declare destructiveHint=true, so irreversibility is covered. The description goes further by disclosing two behaviors annotations cannot express: the per-role authorization model and optimistic concurrency ('Rejected if the record changed since the given version').

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

Conciseness4/5

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

One dense sentence with the core action front-loaded, then permissions, then the failure condition. Effectively sized, though the colon-list construction takes a beat to parse.

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?

With only two parameters, no output schema, and annotations carrying the safety profile, the description covers purpose, authorization and failure mode. Only a note on the success return (e.g. empty body) is absent, which is a minor gap.

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

Parameters4/5

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

Schema coverage is 100%, so the baseline is 3; the description earns a bump by explaining why 'version' exists (stale-write rejection), which the schema's terse 'Record version the change is based on' does not convey.

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

Purpose5/5

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

Names a specific verb (Deletes) and resource (an agent memory record), and is immediately distinguishable from siblings memory_create/read/update/list. An agent knows exactly what this does without opening the schema.

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

Usage Guidelines4/5

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

Supplies the operative conditions for a legitimate call: authors may delete their own records, moderators (memory:moderate) may delete any but user-level records. No alternative tool is named, but for a delete operation the alternative space is self-evident.

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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