summarize_email

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

No annotations are provided, so the description carries the burden. It adds that it is an 'AI summary' and a 'Demo', but does not disclose behavioral traits such as idempotency, rate limits, error handling, or whether it requires authentication beyond what is assumed.

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 sentence with no unnecessary words. The parenthetical 'Internal Server-Side Summarization Demo' is slightly extraneous but does not detract significantly. It is appropriately front-loaded.

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 a single parameter and no output schema, the description explains the input and action. However, it does not mention how to obtain the email ID or what the output format is, which would be helpful given the sibling tools. Adequate but not 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 coverage is 100% with a clear description for 'id'. The description adds 'by ID' but no further semantics. Baseline 3 is appropriate as the schema already documents the parameter adequately.

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 verb 'Get', the resource 'AI summary of a specific email', and the method 'by ID'. It distinguishes from siblings: list_recent_emails lists emails, read_email reads full content, while this provides a summary.

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?

The description implies usage for obtaining a summary rather than the full email or list, but does not explicitly state when to use or when not to use, nor does it mention prerequisites like fetching the email ID first.

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