get_brief

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

The description discloses two key behaviors ('deduped', 'grouped by feed') but with no annotations, it omits other important aspects like read-only nature, time range interpretation, and potential limits on output size.

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 a single, well-structured sentence that efficiently conveys the core functionality without unnecessary words.

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?

Given the tool's simplicity and the lack of output schema, the description covers the essential context. However, it could mention output format or behavior when no items exist.

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 documentation coverage is 0%, and the description does not elaborate on the two parameters (since_hours, max_items_per_feed) beyond their names, failing to add value beyond the schema itself.

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 specifies a unique action ('Generate'), a distinct resource ('deduped digest of recent items'), and scope ('across all subscribed feeds, grouped by feed'). This distinguishes it from sibling tools like fetch_feed and list_feeds.

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?

While the description implies a global usage scenario, it lacks explicit guidance on when to prefer this tool over siblings like fetch_feed, and does not mention any restrictions or prerequisites.

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