Update the booking page

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

Beyond the annotations, the description adds important behavioral context: PATCH semantics ('Only the fields you send change') and the color gating condition ('Colours need useCustomColors set, or they are ignored'). This meaningfully reduces surprise for an update tool marked destructiveHint. It does not enumerate every mutation detail, but the schema covers specifics like null headerImage removal.

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 two concise sentences, with the primary purpose front-loaded and the two most important behavioral caveats stated immediately after. There is no filler, hedging, or repetition of per-field schema details.

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 essential semantics for safe use (partial update and color dependency) are present, and annotations plus an output schema cover safety and return-shape expectations. However, the description omits the tool's non-branding capabilities and provides no routing guidance among sibling page tools. For an 8-parameter mutation tool, this leaves a moderate completeness gap.

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 describes 6 of 8 parameters, including hex format and online profile subfields, so the description is not required to repeat them. The added partial-update rule is valuable across all parameters, but the color condition largely duplicates the useCustomColors schema description. The description does not compensate for the undocumented showAllMeetingTypes parameter.

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 and target ('Change branding on the personal booking page'), making the operation clear and separating it from get_personal_page. It is slightly narrow, since the schema also supports meetingTypeOrder and showAllMeetingTypes, which are not strictly 'branding'. That scope mismatch prevents a perfect score.

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?

No statement about when to choose this tool over alternatives (e.g., get_personal_page to read or import_booking_page to replace the page) is present. The only usage signal is the implied intent to modify the booking page, with no exclusions, prerequisites, or sibling comparisons.

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