set_notification_filters

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

With no annotations, the description bears full burden. It clearly discloses the destructive replacement behavior and explains the three usage scenarios. Could mention authentication or result, but overall transparent.

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 moderately concise with a warning and list of categories. It is well-structured and front-loaded with the key warning. Could potentially omit the category list since it's in the schema, but not detrimental.

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 no output schema and 2 params with full schema coverage, the description covers behavior and usage well. Missing result information is acceptable since no output schema. The description is complete for the tool's complexity.

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%, both parameters have good descriptions in the schema. The tool description adds no new semantic info about the parameters; it only repeats the categories already in the enum. Baseline 3 is appropriate.

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 sets webhook URLs for a user, and the warning about replacing all existing filters distinguishes it from a simple add operation. No sibling tool has similar functionality, so no further differentiation needed.

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 explicitly provides when and how to use: always include the full desired list, fetch existing filters before adding one, and pass empty array to remove all. This guides the agent on correct usage and conditions.

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