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

The description reinforces the annotation-backed non-read-only/idempotent behavior and adds useful partial-update context with 'An omitted field is left alone.' It does not cover auth requirements or the effect of explicitly passing null, but the non-destructive and idempotent profile is already covered by 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 short and front-loaded, with the core purpose in the first sentence and the partial-update caveat immediately after. The 'Not read-only; idempotent' sentence is somewhat redundant with the annotations but is brief enough not to hurt clarity.

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 description covers the operation and the most important behavioral nuance, and the output schema reduces the need to explain return values. Still, it leaves the null-vs-omitted semantics ambiguous and provides no orientation relative to closely related sibling tools, so it is adequate but not fully complete for a six-parameter update tool.

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 description compensates for low schema coverage by semantically naming the optional fields ('public name, description, group or position') and explaining that omitted fields are left alone. However, it does not clarify the difference between omitting a field and passing null, even though the schema allows null for these optional parameters; an agent could not confidently know whether null clears a field.

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 a specific verb ('Change') and resource ('how one monitor is presented on a status page') and enumerates the affected fields: public name, description, group, or position. This clearly distinguishes it from sibling tools like update_status_page, which would update page-level settings rather than a single monitor's presentation.

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 implies the tool is for adjusting the curation/presentation of an existing monitor on a status page, and it communicates partial-update behavior. However, it never explicitly names alternatives such as add_status_page_components or update_status_page, nor does it state when one should be preferred over the other.

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