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

Annotations already declare readOnly, idempotent, non-open-world, and non-destructive, so safety is covered. The description adds one genuinely useful trait beyond that: content is in German. It says nothing about caching, freshness, or output size, so this is adequate rather than rich.

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?

One dense sentence that front-loads the subject's identity and enumerates the sections without filler. The trailing 'Content is in German' is short and load-bearing. Slightly list-heavy but no wasted words.

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 an output schema present, returns need not be explained, and annotations carry the safety profile. The description covers identity, scope, language, and section coverage, leaving only minor gaps such as how sections interact with structured output.

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 single enum parameter is fully documented in the schema, including the default and the 'structured output is always complete' caveat. The description maps some enum values loosely (background, writing, contact) but adds no real semantics beyond the schema.

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 precisely whose profile this returns (Jan Linketscher), the resource type (profile sections: role, background, writing, contact), and the content language. This clearly separates it from siblings like get_essay, list_essays, and book_meeting, though it never names an alternative.

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?

Usage is implied by the content description but no explicit when-to-use or when-not-to-use guidance is given, and no sibling is referenced. An agent can infer this is the profile lookup, but must decide on its own when to prefer search instead.

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