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

Goes well beyond the annotations by disclosing side effects: Synchroteam may notify technicians and/or customers via email/SMS/webhook per account settings, and SMS consumes paid credits. It also names the underlying POST endpoint. It stops short of stating permission requirements or failure modes, so not a 5.

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?

Three tight sentences, front-loaded with the 'WRITE:' marker and the core action, followed by the side-effect caveat and the endpoint. Every clause carries distinct information with 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?

For a 7-parameter mutation with a nested technician object and no output schema, the description covers the identity constraint, timing semantics, re-scheduling behavior, and notification side effects. It omits auth/permission requirements and any error handling, which is the main remaining 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?

Schema coverage is 100%, so the baseline is 3, but the description adds a real constraint absent from the schema: the job must be identified by exactly one of id, my_id or num. It also reinforces the technician lookup route, adding meaning beyond the field descriptions.

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 with scope: 'schedule a job for a technician between two times', and explicitly notes it also re-schedules scheduled or paused jobs. This distinguishes it from create_job, start_job, and complete_job without the agent needing to open any schema.

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?

Gives a clear operating context (schedule/re-schedule a job, identify the job by exactly one of id, my_id or num) and names synchroteam_list_users for technician lookup. It does not explicitly say when to prefer this over start_job or create_job, but the write-vs-lifecycle distinction is inferable.

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