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

The annotations already indicate destructiveHint=true and readOnlyHint=false, so the description doesn't need to restate mutation. It adds useful constraints about logo URLs and excluded actions, but does not detail potential overwrite or irreversible side effects. No contradiction with 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 a single concise sentence that lists the affected fields and includes important constraints and exclusions without unnecessary detail or repetition.

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?

Given the simple update semantics and full schema parameter descriptions, the description provides enough context for an agent to invoke the tool correctly. It includes practical exclusions and URL constraints; a return-value description is not necessary since no output schema is declared.

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 already covers 100% of parameters with examples and constraints, so the baseline is 3. The description reinforces the logo URL requirement and adds exclusion context, but does not significantly extend the parameter-level meaning beyond what the schema provides.

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 uses the specific verb 'Update' and enumerates the exact workspace settings affected (name, colors, timezone, contact link, currency, business information, email sender name, logos). This clearly distinguishes it from the sibling settings-read tool.

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 clearly implies this tool is for modifying workspace settings, and explicitly lists what it does not do (connect Stripe, set custom domain/sending email, switch live mode). This gives useful exclusionary guidance, though it does not explicitly say 'use settings-read to view settings'.

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