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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and non-destructive behavior, so the safety profile is covered. The description adds a lightweight indication of what is returned ('text, when, status') but says nothing about ordering, pagination, or whether already-sent or cancelled items are included.

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 short clause, front-loaded with the resource and followed by the returned fields. Nothing is wasted, though it reads as a fragment rather than a stating sentence.

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 two-parameter read tool with annotations already covering safety, the essentials are present and the field list partially substitutes for the absent output schema. Missing ordering/pagination and sent-vs-pending scope keeps it from being fully complete.

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% and both required UUID parameters document their source tools (dosai_list_projects, dosai_list_conversations). The description adds no parameter detail, which is acceptable at this coverage level but earns only the baseline.

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 the resource ('messages queued to go to the client later') and its scope, which a reader can distinguish from immediate sends. However, it never states the list verb or contrasts with the create-side sibling dosai_schedule_message, nor with dosai_get_messages, so differentiation is left to the tool name.

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?

There is no when-to-use guidance, no condition under which this tool is preferred over dosai_schedule_message or dosai_get_messages, and no prerequisites noted. The only cue is the generic 'later' phrasing.

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