get_library_sections_by_section_id_unmatch

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

Annotations declare readOnlyHint=true, openWorldHint=true, idempotentHint=true, destructiveHint=false, so the agent knows this is a safe, non-destructive read operation. The description adds the HTTP method and path, which is already in the name, and the phrase 'Unmatch Section Items' which is vague. It doesn't add meaningful behavioral context beyond the annotations, but it doesn't contradict them either.

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 short and front-loaded with the title 'Unmatch Section Items', but it includes redundant information: the HTTP path duplicates the tool name, and the Args section repeats the schema. It's not bloated, but it doesn't use its space to add value.

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 tool with one parameter and an output schema, the description is minimal. It doesn't explain what 'unmatch' does, what the output represents, or when this endpoint is appropriate. The annotations cover safety, but the semantic gap around 'unmatch' is significant, especially given the large sibling list with similar names.

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. It does mention 'section_id: The unique identifier of the library section' in the Args section, which adds a tiny bit of meaning beyond the schema's 'Section Id' title. However, it doesn't explain the format, constraints, or how the section_id relates to the unmatch operation. Baseline 3 is appropriate because the single parameter is at least named and minimally described.

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 says 'Unmatch Section Items' and includes the HTTP path, which conveys the resource and action. However, it doesn't explain what 'unmatch' means in this context (e.g., removing metadata matches for items in a section), and the name is awkwardly phrased. It is distinguishable from siblings like get_library_sections_by_section_id_match, but only by inference from the path.

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 on when to use this tool versus alternatives. The sibling list includes get_library_sections_by_section_id_match and update_library_metadata_by_ids_unmatch, but the description doesn't mention them or clarify the difference. The context of 'unmatch' is left entirely to the agent.

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