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

The annotations already declare readOnlyHint=true, idempotentHint=true and destructiveHint=false, and the description is consistent with them, explicitly saying the tool 'opens nothing by itself'. Beyond the annotations it discloses the return shape (screens, buttons, fields) and the required follow-up mechanism (the user's Homerun Cloud Browser session). The API/MCP-server note is background rather than behavioral disclosure, keeping it out of the top band.

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?

The important facts are front-loaded: what it does, that it only returns instructions, and which tools perform the action. The closing sentence about Homerun's Public API v2 and the absence of an official MCP server adds context but does not help an agent decide or invoke, so it is the one sentence that does not fully earn its place.

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 parameters and no output schema, the description carries the whole burden, and it covers the return shape and the hand-off to browser tools adequately. However, it never explains how the specific candidate is determined when the input schema is empty — presumably from the active browser session — which is the most likely point of confusion for an agent. That gap holds it at minimum-viable-plus.

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 and there is no schema meaning to add. The description correctly adds no parameter discussion, though it also never explains how the target candidate is identified given the empty schema.

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 verb and resource ('Disqualify candidate in the user's own Homerun account') and immediately corrects the surprising expectation set by the name: the tool returns step-by-step instructions rather than performing the action. It also names the cotlet_browser_* tools as the actual executor, which distinguishes it from a plain write tool. It stops short of distinguishing it from sibling Homerun write tools (e.g. homerun_move_candidate_to_stage), which likely follow the same pattern.

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 gives a clear workflow: call this to get the procedure, then carry out the steps with cotlet_browser_* in the user's Cloud Browser. The invocation context ('from ChatGPT, Claude or any AI agent' inside the user's own account) is stated. It offers no explicit when-not condition or comparison to the other Homerun action siblings, so it falls short of a 5.

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