MemoryMesh

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It implies a write operation ('defines'), but doesn't specify if this creates new skills, modifies existing ones, requires permissions, or has side effects. For a mutation tool with zero annotation coverage, this lack of detail is a significant gap.

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 a single, efficient sentence: 'Defines list of skills or abilities a character can possess.' It's front-loaded with the core purpose, has no redundant words, and is appropriately sized for the tool's complexity.

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?

Given the tool's complexity (1 parameter with nested objects, no output schema, and no annotations), the description is incomplete. It doesn't cover parameter details, behavioral traits, or usage context, leaving gaps that could hinder correct tool invocation by an AI agent.

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 for undocumented parameters. It mentions 'list of skills or abilities' but doesn't explain the 'skills' parameter's structure (e.g., nested object with 'name' and 'owner' fields). This adds minimal value beyond the schema, failing to clarify parameter meanings adequately.

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 clearly states the tool's purpose: 'Defines list of skills or abilities a character can possess.' It specifies the verb 'defines' and the resource 'skills or abilities a character can possess,' making it understandable. However, it doesn't explicitly differentiate from siblings like 'add_artifact' or 'add_npc,' which also add entities, so it's not fully distinct.

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?

The description provides no guidance on when to use this tool versus alternatives. It doesn't mention prerequisites, such as needing an existing character, or contrast with siblings like 'update_skills' or 'delete_skills.' Without such context, users must infer usage from the name alone, which is insufficient.

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