Toggle Playdate lock state

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

Annotations already convey readOnlyHint=false and idempotentHint=false, so the mutation and non-idempotent nature are structured. The description adds the specific 'toggle' semantics—flipping the lock state rather than setting it—but does not disclose side effects, effects of omitting pid, or interaction with the simulator.

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 focused sentence with no filler. The action is front-loaded, and the length is appropriate for a one-parameter toggle operation.

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 simple tool with one optional parameter, annotations, and an output schema, the description covers the essential action. The main gap is the lack of usage guidance, but this is not critical given the tool's simplicity.

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%, and the optional pid parameter is fully documented in the schema. The description adds no extra meaning about the parameter, so the baseline score of 3 applies.

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 states a specific verb ('toggle') and resource ('Simulator's Playdate lock state'), which is enough to tell it apart from siblings like playdate_set_paused or playdate_press. It closely echoes the title but adds 'Simulator's' and is not a tautology.

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?

No guidance is provided on when to use this tool versus alternatives such as playdate_set_paused or playdate_press. There are no prerequisites, conditions, or exclusions, leaving usage entirely to inference.

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