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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds a genuine access-scope disclosure ('Public data only') that the annotations do not state, which is useful context for an agent. It stops short of describing result ordering, empty-result behavior, or pagination.

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?

Three short sentences, front-loaded with the resource scope before the usage note. The docs link is minor filler but not disruptive. Every sentence carries some information, though the trailing URL could be trimmed.

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 read-only, three-parameter search tool with a fully documented schema, the description covers what to search, when to reach for it, and the public-data constraint. With no output schema present, it could say more about the shape of results (grouped by kind, row limits), but nothing critical to correct invocation is missing.

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%, so all three parameters (kinds, limit, query) are already documented in the schema, including the 'matched against names, descriptions and rikma names' semantics. The description adds nothing beyond that baseline, so a 3 is correct.

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?

States a specific verb (search) and resource (the public catalog), then enumerates the three directories it covers: products for sale, open missions, and open resources. An agent can tell this apart from mutation-oriented siblings like createProjectTool or prepareMissionTool without opening any schema.

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?

Gives explicit when-to-use guidance: 'Use it before opening a new wish or mission - somebody may already do this.' It also scopes usage with 'Public data only.' It does not, however, contrast itself with likely-overlapping siblings such as searchContentTool or findMissionTool, leaving that routing to inference.

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