bing_plan_fetch_url

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

Beyond the annotations, the description discloses important behavior: nothing is sent, only intent is recorded, the change is not actually applied, and the agent should return a plan id and CLI apply command. This meaningfully reduces the risk of an agent misleading the user. It could add more detail on failure states or whether plan creation can fail, but the core behavioral contract is transparent.

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, front-loaded sentences with no filler. Each sentence delivers a distinct piece of action-relevant information: this is a human-review plan, it does not send or apply anything, and the agent must respond with a plan id and CLI apply command.

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?

Given that there is no output schema, the description helpfully covers what the agent should return: the plan id and CLI apply command. However, it leaves out the substantive context of what change is being planned and the meaning of the two required URL parameters, so the description remains incomplete for correct invocation.

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 description coverage is 0%, so the description must compensate by explaining site_url and url. It does not mention either parameter, give examples, or clarify which URL is the site and which URL is the target of the planned change. The agent is left to guess from parameter names alone.

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 communicates that this tool stages a plan for human review rather than executing it, which is a meaningful distinction from direct-action tools. However, it never explicitly states what 'this change' is: it does not mention fetching a URL, and the operation is only implied by the tool name. It is clear enough at the plan/intent level but vague about the exact resource being acted on.

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?

The description clearly implies this is the non-destructive path: it sends nothing, only records intent, and should not be reported as applied. But it provides no explicit guidance on when to choose this tool over other bing_plan_* tools or a direct execution tool, and it does not state any prerequisites or exclusions.

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