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

Annotations already cover readOnlyHint, idempotentHint, and destructiveHint, so the safety profile is settled. The description adds genuine value by enumerating the returned fields, but it says nothing about result ordering, what happens when no match is found, or how the 50-item cap interacts with the default limit.

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?

Two sentences, zero padding. The purpose leads and the return contract follows, with no redundant restatement of the tool name or title.

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?

With no output schema, the description's field enumeration is exactly the right compensation for that gap. What's missing is the ranking/ordering of results and any note that the search is substring-based rather than exact, which matters for a tool with 0 required params.

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 100% and the category enum is declared, so all four parameters are already documented with examples and defaults. The description's phrase 'by text and/or category' only restates the query and category params without adding syntax, matching rules, or combination behavior, so baseline 3 applies.

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 a specific verb and resource: 'Search community-submitted GTA VI map pins by text and/or category.' That clearly distinguishes it from a fetch-by-id tool, but it never contrasts itself with siblings like find_nearby, search_landmarks, or list_categories, so the agent must infer which search variant to use.

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 explicit when-to-use guidance, no prerequisites, and no stated exclusions. The reader must infer from the phrase 'by text and/or category' that this is the keyword/browse path rather than the proximity path (find_nearby) or single-record path (get_location), and the description never says so.

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