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

With no annotations, the description carries the full burden and excels: it discloses that it writes a shared file attached as an artifact on a create-once work item, returns {changed: false} and does not comment when unchanged, and notes the schedule is bot-side. These are concrete behavioral traits beyond the schema.

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 exceptionally concise and well-structured: two sentences front-load the purpose, then add key behavioral details. Every sentence earns its place, with no filler or repetition.

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?

The description covers the core behavior, side effects, and scheduling, which is strong for a tool with a single optional parameter and an output schema. It lacks explicit prerequisites (e.g., org binding) and return behavior when changed, but those are minor given the output schema exists and the tool is simple.

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 only parameter 'agent' is fully described in the schema ('Override agent identity'), and the description adds no further meaning. Since schema coverage is 100%, the baseline of 3 is appropriate; the description does not enhance parameter understanding.

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 it produces an 'Org attention briefing' from 'open work, project status, and dream', giving a specific verb and resource. It also clarifies the data source ('Work is the signal — not Slack or email'). However, it does not name or contrast any sibling tools, so an agent might not easily distinguish it from similar briefing tools like account_brief.

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 explicit guidance on when to use this tool versus alternatives. The only usage hint is that the hourly schedule is bot-side, implying it is not intended for manual invocation, but no when-to-use or when-not-to-use instructions are provided, and no alternative tools are mentioned.

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