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

Annotations already declare destructiveHint=true, readOnlyHint=false and openWorldHint=true, so the safety profile is covered. The description adds genuinely new behavior: the request body is dynamic and must be derived from a prior discovery call rather than constructed from the schema. It does not, however, say what an executed action changes, whether it is reversible, or what happens on a malformed body — gaps that matter for a destructive call.

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?

Front-loads the workflow position and then gives numbered, scannable prerequisites; nearly every sentence carries actionable instruction. Minor redundancy: "IMPORTANT: Always call step 2" restates what numbered step 2 already said, costing a line without adding 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?

Output schema exists, so return values need not be described. But for a destructive, open-world tool whose only parameter is an opaque object, the description explains how to discover the body yet says nothing about how the discovered structure maps into the required `body` field or about failure handling. Adequate routing, incomplete contract.

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% — a single required `body` object with additionalProperties=true and no documented shape, so the description carries the burden. It partially compensates by routing the agent to actions_details to obtain the exact body structure, but never states the body envelope (e.g., whether workspace_id/brand_id belong at the top level) nor any required/optional keys, leaving the contract resolved only at runtime.

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 and resource ("Execute Microsoft Clarity action") and positions itself explicitly as step 3 (FINAL) of a workflow, which separates it from query_contexts and query_data. The word "action" stays generic — it never says what family of actions (projects, segments, heatmaps?) or that the action type is chosen dynamically from the earlier lookup — so the agent knows the operation class but not its domain.

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 an explicit ordered prerequisite chain with literal request values ('accounts', then 'actions_details' with actions=[...]) and names the sibling tool that satisfies each step. It also states a hard gate ("Always call step 2 ... before executing"), so there is no inference required about when this tool is safe to call.

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