Close cycle model

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

The annotation destructiveHint=true already signals the destructive nature. The description adds that it closes and frees resources, but does not disclose that the session becomes invalid, whether operations can continue after closing, or how errors are handled. No contradiction with 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 a single, front-loaded sentence containing the verb, resource, and effect. There is no unnecessary verbiage; every word earns its place.

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 tool is simple with one parameter, an output schema exists, and the destructive annotation is provided. The description covers the core purpose but omits important lifecycle context such as requiring a session created by create_cycle_model, one-time close semantics, and resource cleanup implications.

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 input schema has one required parameter session_id with no description and 0% schema coverage. The description's phrase 'a pyCycle session' vaguely implies session_id identifies which session to close, but it does not explain where to get the ID, that the session must be active, or any constraints.

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 clearly states a specific action ('Close') on a specific resource ('a pyCycle session') and the effect ('free resources'). This distinguishes it from sibling tools like create_cycle_model, run_cycle, or get_cycle_summary.

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 phrase 'free resources' implies the tool should be used when a session is no longer needed, but the description does not explicitly say when to call it, mention that it should follow session creation, or provide any exclusions or alternatives.

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