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

No annotations are provided, so the description carries the behavioral burden. It does disclose the return shape (summary, key points, compression ratio), but it does not state whether the operation is side-effect-free, whether it has input limits, or any behavioral caveats 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 a single dense sentence that front-loads the core action, lists the relevant options in order, and closes with the output. There is no filler or redundant detail.

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?

With no output schema, the description compensates by naming the returned artifacts (summary, key points, compression ratio) and by enumerating all configurable modes. It falls slightly short of a 5 because it omits any usage context or behavioral caveats, but it is largely sufficient for a non-destructive summarization tool.

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%, so the baseline is 3. The description mainly restates the enum values and optional focus that appear in the schema, adding little semantic meaning beyond what is already structurally documented.

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 identifies the verb ('Summarize'), the resource ('text'), and the key configurability (length, format, focus). It also differentiates itself from sibling tools like translate and sentiment by specifying output artifacts (summary, key points, compression ratio).

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 gives no guidance on when to use this tool versus alternatives or when not to use it. There are no exclusions, prerequisites, or sibling-tool comparisons, leaving the agent to infer suitable contexts from the tool name alone.

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