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

Annotations already indicate the operation is a mutation (readOnlyHint=false) and non-destructive (destructiveHint=false). The description adds no further behavioral context, such as whether linking is additive or replaces existing links, or how errors are handled. It does not go beyond the annotations.

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 two concise sentences, front-loaded with the core action. There is no fluff or repetition; every word adds 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?

The description is adequate for a simple linking action but leaves ambiguity: it does not clarify whether both schema_names and schema_uuids can be provided together, what happens if no schemas are provided (since only project_uuid is required), or what the return value is. Given the lack of an output schema, more context would be helpful.

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?

The schema describes all three parameters with clear descriptions, and the description adds little extra beyond mentioning that both schema_names and schema_uuids are accepted. With 100% schema coverage, this is a baseline 3; the description adds no additional meaning.

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 action ('Link schemas') and the resource ('to a project'), and adds that it accepts schema UUIDs or names. This is specific and distinguishes it from sibling tools like schema_list_project (listing) or schema_delete (deleting).

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, nor does it mention any exclusions or prerequisites. It simply states the action, leaving the agent to infer the use case.

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