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

No annotations are provided, so the description carries the full behavioral burden. It does usefully disclose that edits apply to future scheduled checks rather than altering past results, and "Patch" implies partial-update semantics, but it says nothing about permissions, error behavior for an unknown ID, or whether omitted fields are preserved or reset.

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?

Two sentences, both front-loaded: the action and identifier first, then the mutation surface and the forward-looking scope, then the return. No filler.

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?

A mutation tool with no annotations, no output schema defined in structured fields (it partially compensates with "Returns the updated monitor"), and a nested opaque body. It is adequate but leaves gaps around body structure and failure modes that an agent would want before calling it with an arbitrary object.

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 0% and the body is an untyped free-form object (additionalProperties: {}), so the description's field list is the only documentation of what can go in the body. That is real compensating value, but the `id` parameter is never described and no field types or value formats are given.

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 and resource ("Patch an existing monitor by ID") and enumerates the mutable surface (name, status, schedule, targets, goal, judging, webhook, notifications, retention). That is enough to distinguish it from firecrawl_monitor_create, _get, _delete, and _list without opening the schema, though it never names those siblings.

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?

Usage is implied by the verb "Patch" and by the note that changes affect future scheduled checks, which tells the agent this is a forward-looking edit rather than a retroactive one. There is no explicit guidance about when to prefer update over delete-and-recreate, or any prerequisite for the monitor existing.

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