kaiten_create_time_log

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

With no annotations, the description carries the full burden, but it only says 'Log time spent' – no mention of side effects, whether repeated calls create duplicate entries, permission requirements, or what response to expect. This is minimal behavioral disclosure for a write operation.

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?

A single, front-loaded sentence with no wasted words. It is concise, though so brief that it leaves usage context to the schema and the tool name.

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 5-parameter create operation with no annotations or output schema, the description plus full schema coverage is minimally viable, but it lacks any operational context such as return value, duplicate behavior, permission needs, or how it differs from user timers. An agent can call it correctly but without broader context.

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 description coverage is 100%, so all parameters (card_id, time_spent, comment, role_id, for_date) already have meaningful descriptions including defaults and constraints. The description adds no parameter-level detail, so baseline 3 is appropriate.

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?

States a specific action ('Log') and resource ('time spent on a card'). It is concise and distinguishable from list/update/delete time-log siblings by the create intent, though it doesn't explicitly contrast itself with them.

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 on when to use this tool instead of related siblings such as kaiten_create_user_timer, kaiten_list_card_time_logs, kaiten_update_time_log, or kaiten_delete_time_log. The context for selection is entirely implicit.

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