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

Annotations already establish readOnlyHint=true and destructiveHint=false, and the description usefully confirms the no-persistence behavior (grants are not stored until the callback). Disclosing the return artifact (authorization_url) and the deferred side effect adds real value beyond the annotations. It stops short of describing URL lifetime or error behavior.

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 clauses, each earning its place: eligibility scope first, then the return value, then the persistence caveat. No filler or repetition of the title.

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 an output schema present and no inputs, the description covers the essentials: what comes back and that linking is not finished here. The missing piece is the counterpart tool or callback expectation the agent should act on next, which is gestured at only by 'see ops_account_link flow'.

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 the baseline is 4; there is no parameter semantics to explain and the description correctly does not invent any. Nothing in the schema is left uninterpreted.

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 action and deliverable: return an OAuth authorization_url to link a new tenant, scoped by 'Connection Hub only'. It is clearly distinct from ops_accounts_list and ops_account_unlink, though the referenced 'ops_account_link flow' does not appear among siblings, leaving the completion path unnamed.

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?

'Connection Hub only' is a real eligibility constraint, and the note about the HTTP callback implies this is step one of a multi-step flow. However, it never says explicitly when an agent should pick this over ops_configure_integration or ops_test_integration, nor what to do after receiving the URL.

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