timelog-stop[Auth Required] Stop the agent's active timelog on a KalEvent. NO time cap — real elapsed minutes (now - start) are authoritative. Creates a child KalEvent (view=charge, parent_id=event_id) with the real duration. Returns the finalized UserTime + child event.
| Name | Required | Description | Default |
|---|---|---|---|
| label | No | Optional label for the timelog / resulting child event | |
| event_id | Yes | KalEvent ID the timer was started on |
Changes observed during successful MCP inspections.
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, description fully discloses auth requirement, time calculation, side effect (creates child KalEvent), and return value. No contradictions.
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?
Three concise sentences front-loaded with auth requirement. Every sentence adds essential information with no redundancy.
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?
Explains return value and side effects despite no output schema. Could briefly mention error conditions (e.g., no active timelog) for full completeness.
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 covers 100% of parameters with descriptions; tool description adds behavioral context but no additional parameter-specific insights beyond 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?
Clearly states 'Stop the agent's active timelog on a KalEvent' with specific verb and resource. Distinguishes from sibling timelog-start and timelog-check.
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?
Indicates 'Auth Required' prerequisite and 'NO time cap' behavior, but does not explicitly state when not to use or compare with alternatives.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
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