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

Annotations already declare destructiveHint=true, idempotentHint=false, and readOnlyHint=false, so the safety profile is covered. The description adds the '(VG agents only)' applicability constraint, which is real context beyond the annotations, but it omits irreversibility and permission details.

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?

A single compact sentence with the verb and resource front-loaded and no filler. The parenthetical constraint is terse but earns its place.

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 two-parameter delete with a full schema and destructive annotations, the essentials are present. However, no output schema exists and the description says nothing about what happens after deletion, reversibility, or error behavior, and the cryptic 'VG agents only' scope is unexplained.

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 both agentId and docId documented, so the schema carries parameter meaning. The description adds nothing about the parameters (e.g., whether docId must belong to agentId), leaving it at the baseline.

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?

States a specific verb and resource ('Delete a knowledge base document'), so the operation is unambiguous. It does not explicitly distinguish itself from the sibling bulk_delete_kb_docs, though the singular 'document' implies one-at-a-time.

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 '(VG agents only)' qualifier hints at a scope restriction but is never explained, and there is no guidance on when to use this versus bulk_delete_kb_docs or how it relates to update_kb_doc/patch_kb_doc. No prerequisites or exclusions are spelled out.

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