MemoryMesh

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

No annotations are provided, so the description carries full burden. 'Update' implies a mutation operation, but the description doesn't disclose what permissions are needed, whether changes are reversible, what happens to existing data not mentioned in the update, or any rate limits. It mentions 'knowledge graph' context but provides no behavioral details about the update process.

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

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

The description is extremely brief (one sentence) which could be appropriate if it were informative, but it's under-specified rather than concise. It's front-loaded with the core action but lacks necessary detail. The grammatical error ('an existing skills') detracts from quality.

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

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

For a mutation tool with no annotations, 0% schema coverage, no output schema, and a complex nested parameter structure, the description is completely inadequate. It doesn't explain what the tool returns, what the parameters mean, behavioral constraints, or how it differs from related tools. This leaves the agent with insufficient information to use the tool correctly.

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

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

Schema description coverage is 0%, so the description must compensate. The description provides zero information about parameters - it doesn't mention what parameters are needed, what 'update_skills' object contains, or what fields like 'name', 'metadata', and 'owner' represent. With 1 required parameter (a nested object) completely undocumented, this is inadequate.

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

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

The description states 'Update an existing skills in the knowledge graph' which is a tautology that essentially restates the tool name 'update_skills'. It doesn't specify what aspects of skills are updated or how this differs from other update tools like update_artifact or update_quest. The grammatical error ('an existing skills') further reduces clarity.

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

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

There is no guidance on when to use this tool versus alternatives. With sibling tools like add_skills and delete_skills available, the description provides no context about prerequisites (e.g., skills must exist first), when to choose update over add/delete, or how this relates to other update_* tools for different entity types.

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