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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint, so the safety profile is covered. The description adds that entities originate from an external teammates integration and that results are paginated, but says nothing about what happens if the integration is not connected or how an empty/unavailable directory is signaled.

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?

Three short sentences, front-loaded with the scope and immediately followed by the downstream rationale. 'Paginated (page/limit)' is mildly redundant with the schema but not wasteful enough to hurt readability.

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 paginated read tool with a full schema and an output schema, the description covers purpose, consuming tool, and pagination behavior. It is nearly complete, missing only edge-case behavior around unavailable integrations or empty results.

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% and all five parameters are documented there, including defaults for page and limit. The description only echoes 'Paginated (page/limit)' and adds no syntax or usage nuance beyond the schema, so the baseline 3 applies.

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 ('List the workspace's directory org units / groups') and narrows the source ('from a teammates integration'), which distinguishes it from siblings like list_integrations and list_teammates. An agent can identify it without opening the schema.

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?

Explicitly ties the output to the downstream action: 'Their uuids are what you pass to add_signature_recipient_entities to target a signature at a whole org unit.' That is clear when-to-use context, though it offers no exclusions or mention of remove_signature_recipient_entities as the inverse path.

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