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

Annotations already declare readOnlyHint=true, destructiveHint=false and openWorldHint=false, so the safety and world-scope profile is covered. The description adds only the account-scoping qualifier ("this account"), which is consistent with openWorldHint=false but adds little; it says nothing about ordering, pagination, or whether disconnected/expired connections are included.

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 sentence with no filler, and the verb and subject are front-loaded. Nothing in it repeats the title verbatim in a wasteful way, and the enumeration of connection types 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 zero-parameter read-only list with no output schema, the description is close to sufficient: the agent knows it will get back the account's connected integrations. It only falls short of 5 because it doesn't hint at what a connection record contains or how to proceed to per-connection details.

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?

The tool takes zero parameters, so there is no parameter semantics to explain and the baseline of 4 applies. The description correctly implies an unfiltered, no-argument listing rather than suggesting any filtering inputs.

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?

Specific verb plus resource ("Lists ... connected") and it expands what "connections" means into spreadsheets, databases, CRMs and automation tools, which is genuinely clarifying. It loses a point because the sibling set contains near-duplicates like list_connected_tools, list_connection_destinations and get_connection_columns, and the description does nothing to disambiguate from them.

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?

There is no when-to-use guidance, no mention of when a different sibling should be called instead (e.g. list_connected_tools vs get_connection_columns), and no prerequisites or follow-up hints. The agent must infer usage purely from the tool name.

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