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

With no annotations, the description carries the full burden, and it does disclose the key behavioral fact that the job is not deleted and simply stops running, which signals reversibility. It omits whether in-flight executions are killed, whether the call is idempotent, and what permissions or response to expect.

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?

One sentence, front-loaded with the action, with the clarifying clause placed where it is needed. Nothing is wasted and nothing important is buried.

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 flat three-parameter mutation with no output schema and no annotations, the description supplies the one thing an agent cannot infer from the name: that pausing preserves the job definition. Remaining gaps (in-flight runs, return shape) are minor for a tool this simple.

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?

Three required params at 67% schema coverage: env and project are documented in the schema, name is not, and the description adds no parameter meaning at all. The parameters are largely self-describing so the gap is tolerable, but the description contributes nothing beyond the schema.

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 (pause) and resource (cron job), and the parenthetical pins down what 'pause' means in this system: the job stays defined but does not run. That distinguishes it in spirit from cron.remove and cron.run, though no sibling is named explicitly.

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 only implied: by saying the job 'stays defined', the agent can infer this is the reversible alternative to cron.remove, but the description never says when to pause versus remove, run, or resume, and gives no prerequisites.

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