Freelo Stop Time Tracking

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

Annotations only indicate readOnlyHint=false, idempotentHint=false, and destructiveHint=false. The description adds meaningful behavioral context by disclosing that stopping also calculates elapsed time and automatically creates a work report, which is a non-obvious side effect not captured by 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 two short sentences with no filler. It front-loads the primary action and then adds only the essential automatic side effect, making it easy to scan and quickly act on.

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 zero-parameter tool with an output schema and annotations, this description is complete. It states what the tool does, what condition must hold ('currently active'), and what additional result occurs (work report creation), leaving no critical gap for an agent to invoke it correctly.

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 tool has zero parameters, and the schema properties object is empty, so there is no parameter meaning to clarify. The baseline of 4 applies here because the description does not need to compensate for any missing parameter documentation.

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 names a specific verb ('Stops'), a clear resource ('currently active time tracking session'), and an important side effect (automatically creates a work report). This distinguishes it from siblings like freelo_start_time_tracking and freelo_create_work_report without needing to open schemas.

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 'currently active time tracking session' gives clear context: use this when a session exists and needs to be ended. It does not explicitly name alternatives or exclusions, but the usage condition is evident and distinguishes it from start_time_tracking.

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