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

Annotations already declare readOnly/idempotent/non-destructive, so the safety profile is covered; the description adds the auth scope requirement and the per-toolkit result granularity, which an agent cannot infer from the schema. It doesn't mention ordering, pagination, or what an empty result means, so it falls short of a 5.

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 sentences, front-loaded with the operation, then the return contents, then the purpose and the auth prerequisite. Every clause carries information; no filler or restatement of the name.

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 correctly compensates by enumerating the returned fields, and it names the required scope. Minor gap: nothing about ordering, result limits, or behavior when no integrations are connected for a read-only list of unbounded size.

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%, so both parameters are already documented, and the description only loosely reinforces `workspace` ('the selected workspace, or the workspace bound to a workspace key'). The `account` parameter is never addressed in the description. Baseline 3 applies when the schema does the heavy lifting.

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 all integrations connected to the selected workspace') plus the exact return shape: one entry per connected toolkit with system name, status, last sync time, and vendor metadata. This is clearly distinguishable from hub_get_preferred_integration/hub_set_preferred_integration in the sibling list.

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?

Gives concrete use cases: discovering which value is valid for `setPreferredIntegration`, and reporting connection health to the user. It also states the required `integrations:read` scope. What's missing is an explicit exclusion (i.e. 'use hub_get_preferred_integration when you only need the single active one'), which would make routing unambiguous.

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