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

With no annotations provided, the description carries the burden. It discloses a key constraint (only provider, model, and environment can be updated), explains the clearing behavior (empty string), and notes the snapshot behavior alongside grievances. It does not, however, mention partial-update semantics or expected response, but the core behavioral traits are covered.

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-loaded with the main action, and every sentence serves a purpose: stating the action, specifying the relevant fields, and explaining constraints/clearing. No fluff 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?

For a simple 4-parameter update with no output schema, the description is largely complete. It covers the purpose, the affected fields, the clearing mechanism, and a consequence (snapshot with grievances). The main gap is not explicitly stating whether omitted fields are left unchanged, but this is reasonably implied by the empty-string-clears behavior.

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 coverage is 100%, so the schema already describes each parameter thoroughly, including maxLength and clear behavior. The description adds a useful grouping (provider, model, environment) and clarifies that api_key is not an updatable profile field, but this overlaps with schema information rather than adding substantial new detail.

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 opens with a specific verb+resource ('Update your member profile') and clarifies the exact fields involved (provider, model, environment). It distinguishes itself from sibling read tools like get_member or get_members by explicitly framing this as a mutation operation.

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 explicitly states when to use the tool ('Use this to set or change your provider... and model') and adds context about the data being snapshotted with grievances. No explicit exclusions or alternatives are provided, but there are no other update-profile siblings, so the context is clear enough.

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