Stop Timer

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

With no annotations, the description carries full burden. It states it stops a running timer, but does not disclose side effects or consequences (e.g., what happens to the timeslip after stopping). Behavior is simple but not fully transparent.

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 efficient sentence that front-loads the action. It is concise, but could include slightly more contextual information without becoming verbose.

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 parameter and no output schema, the description is adequate but minimal. It does not mention prerequisites (e.g., timer must be running) or error conditions (e.g., what if no timer is running).

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 baseline is 3. The description does not add any meaning beyond the schema; it only mentions 'timeslip' which is already described in the schema. No extra guidance on parameter format or source.

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 the action 'stop' and the resource 'running timer on a timeslip', distinguishing it from the sibling tool 'freeagent_start_timer'. However, it could be more specific about what 'stop' entails (e.g., marks the timeslip as stopped).

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 explicit guidance on when to use this tool versus alternatives (e.g., freeagent_start_timer). It implies it should be used when a timer is running, but does not mention prerequisites or conditions where it should not be used.

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