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

No annotations are provided, so the description must carry the full behavioral burden. 'Purge' signals a destructive operation, but the description does not disclose irreversibility, permissions, default scope when source_type is omitted, or what is returned.

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 front-loaded sentence with the verb and resource first and the optional filter immediately after. There is no wasted text.

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 annotations, no output schema, and a destructive operation, the description is too thin. It does not explain the consequences of purging, whether the default purges all sources, permissions required, or expected response.

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%, so the description should compensate. It usefully documents that source_type is optional and lists allowed values ('url', 'text', 'document'), but bot_id is only implied by 'for a bot' and the null/default behavior is not explained.

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 states a specific verb and resource: 'Purge knowledge sources for a bot.' It also clarifies the optional source_type filter with concrete values. It does not explicitly distinguish this bulk purge operation from the sibling delete_knowledge_source, so it falls short of a 5.

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 by naming the operation and the optional filter, but it gives no explicit guidance on when to use this tool versus delete_knowledge_source or list_knowledge_sources. It also does not state when not to use it or warn that omitting source_type may purge all sources.

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