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

The annotations declare destructiveHint=true, but the description adds critical behavioral facts an agent could not infer: create returns the full URL with token exactly ONCE and it cannot be shown again, and delete takes effect immediately. These are exactly the kind of consequences an agent needs before calling.

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?

It's dense and front-loaded: definition first, then the action list, then the two highest-stakes behavioral warnings. No sentence is filler and the warning that the URL can't be shown again is placed prominently.

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 spends words on what create returns and what delete does. It's slightly thin on what get/list return, but for a 9-parameter tool with a rich schema, an agent has enough to call it correctly.

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 78%, near the high-coverage baseline, and the schema itself documents id, name, isActive, ipAllowlist, mappingJson and signingSecret in detail. The description only paraphrases the action enum and does not add meaning about ipAllowlist, mappingMode, or signingSecret beyond the schema, so 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?

The description states a specific resource and mechanism—'URLs other services POST to so Groundbase creates contacts, deals, tasks'—which immediately distinguishes it from the sibling outbound_webhooks_manage. An agent knows exactly what this tool manages without inspecting 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?

It enumerates the action verbs and gives a clear conditional instruction for destructive use ('delete stops the URL accepting posts immediately; confirm first'). What's missing is an explicit pointer to outbound_webhooks_manage for the opposite direction, so it's clear context but not full alternative routing.

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