get_namespaces

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It discloses the return value (prefix-namespace pairs) and purpose, but does not mention behavior such as the default repository selection (though the schema does), potential error cases, or whether standard prefixes are included. This is adequate for a simple read operation but lacks edge-case transparency.

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 concise at two sentences, with no redundant information. The main action and resource are front-loaded, making it easily scannable.

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 simple one-parameter tool with no output schema, the description adequately explains the output and use context. It does not cover potential errors or behavior when no repository is selected, but given the low complexity, it is nearly complete.

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 description covers the only parameter (repository_id) 100%, including that it uses a default if not specified. The tool description adds no additional parameter semantics beyond what the schema already provides, so the baseline of 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 clearly states the tool retrieves namespace prefix mappings for a repository, with a specific purpose for SPARQL queries. It uses a specific verb ('get') and resource ('namespace prefix mappings'), distinguishing it from sibling tools that execute queries or search entities.

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 implies use before SPARQL queries to obtain prefixes, but it does not explicitly say when to use it versus other repository tools or when to specify the repository_id. No alternatives or exclusions are mentioned, leaving usage context somewhat implicit.

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