update_profile_section

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

With no annotations present, the description carries the full behavioral burden. It clearly discloses that the operation is destructive but reversible, that a snapshot is taken first, and that the previous version can be restored. This is strong behavioral context, though it does not cover permissions, side effects beyond the profile document, or rate limits.

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 three sentences long, front-loads the most important facts ('Replace an entire profile document. Destructive but reversible.'), and every sentence adds distinct value: behavior, reversibility, usage scenario, and alternative. No filler or redundancy.

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 high-level guidance is complete and the output schema exists, so return values need not be explained. However, with no annotations and zero parameter documentation in the schema, the missing semantics for 'section' and 'source' leave a real gap that prevents fully correct invocation.

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 0%, so the description must compensate for the undocumented parameters. It only implies that 'content' is the new resume/profile data, but it never explains what 'section' means, what values it accepts, or what 'source' contributes. An agent would still be guessing about two of the three parameters.

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 action and resource: 'Replace an entire profile document.' It also differentiates itself from add_profile_fact by framing this tool as a wholesale refresh rather than a single-fact addition. Even though the tool name includes 'section', the description's 'entire profile document' is unambiguous enough for an agent to understand the scope.

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?

It gives explicit when-to-use guidance with a concrete example ('a new resume supplied by the user') and an explicit alternative for a different case ('For a single new fact use add_profile_fact instead'). It also names the restore path for reversibility, which helps an agent decide when this tool is appropriate.

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