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

With no annotations, the description carries full burden. It implies a read operation by stating 'get' and listing return fields, but does not explicitly confirm read-only behavior, authorization needs, or side effects. Provides minimal behavioral context.

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?

Extremely concise two-sentence description that front-loads the action and return details. No unnecessary words, achieving high density of useful information.

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 tool with one parameter and no output schema, the description is adequate but not comprehensive. It identifies key return fields but lacks details on response structure, potential errors, or how to obtain itemId. Given sibling tool variety, more context would improve agent decision-making.

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 0%. The sole parameter 'itemId' is not explained, leaving its purpose and format entirely unspecified. The description adds zero semantic value beyond the 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?

The description clearly states the tool retrieves a recall detail and full event timeline, specifying returned fields (firstSeenAt, ledgerVerified). It distinctively identifies the resource (recall) and action (get), differentiating it from sibling tools like recall_watch_search or recall_watch_timeline.

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 versus alternatives (e.g., recall_watch_search, recall_watch_timeline). The description does not mention prerequisites, exclusions, or use cases, leaving the agent to infer from the name alone.

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