Creative Decision Journal

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

Annotations are all false, and the description adds no behavioral detail. It does not state whether operations are idempotent, what side effects occur, or if permissions are needed. The description should compensate for sparse annotations but fails to do so.

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 overly terse (one short sentence) and lacks structure. It is under-specified rather than concise, sacrificing informativeness for brevity.

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 has 3 parameters, nested objects, and an output schema, the description is severely incomplete. It omits return value info, action-specific behavior, and payload structure. The description does not enable effective tool usage.

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 only 33%, and the description provides no explanation of parameters. The action enum values are listed but not described. The payload description points to an external URI which is likely inaccessible to the agent. No additional meaning is added beyond the schema.

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 is vague: 'Append/resume, query, report, or publish decisions.' It lists actions but does not specify what a 'decision journal' is or how it relates to Vocaloid tasks. The resource is unclear, and the description does not differentiate from sibling tools which cover specific Vocaloid operations.

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?

No guidance is provided on when to use this tool versus alternatives. There are no exclusions or context for selecting a particular action or payload. The agent gets no help in deciding to invoke this tool.

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