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

No annotations exist, so the description carries the full burden and does well: it discloses that the call returns (not completes) a URL, that a HUMAN must approve in a browser while logged in, a 20-minute expiry window, and that the connection finalizes server-side. It does not cover what happens if the window lapses or what error/auth states polling can return, hence not 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?

One dense sentence plus a short imperative follow-up; the return value and human-approval constraint are front-loaded, and every clause (20-minute limit, server-side completion, polling target, Kommo prerequisite) carries actionable information.

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 small, annotation-free tool with no output schema, the description supplies the return shape, the human-in-the-loop requirement, the timeout, the next tool to call, and a prerequisite — enough to invoke and drive it correctly. Only the failure/expiry path is left unspecified.

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 0%, but there is only one parameter and it is enum-constrained, so the schema largely self-documents. The description still adds provider-specific meaning by noting Kommo's save_kommo_credentials prerequisite while HubSpot has no such step.

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-result ('Returns an authorization URL') and resource (Kommo/HubSpot CRM OAuth connection), and makes the human-in-browser requirement explicit. An agent can immediately distinguish this from get_crm_integration, disconnect_crm_integration, and save_kommo_credentials among its many siblings.

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 clear operational sequencing: hand the URL to the user, then poll get_crm_integration, and for Kommo call save_kommo_credentials first. It does not state the negative case (e.g. don't call if an integration already exists — check list_crm_integrations first), which is the only missing routing guidance.

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