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

Adds real value beyond the annotations: it discloses that the tool 'opens nothing by itself', that the return is a step-by-step walkthrough of screens, buttons and fields, and that PT Distinction publishes no public API. These statements are consistent with readOnlyHint=true and strengthen it rather than merely restating it. Minor gap is that it says nothing about account/session prerequisites or failure modes.

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?

Roughly three front-loaded sentences that each carry a distinct point: what it is, what it returns, what it does not do, and how to follow up. Slight filler in 'from ChatGPT, Claude or any AI agent' and the repeated 'PT Distinction' phrasing could be trimmed.

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 takes on the job of explaining the return value, which it does (step-by-step screens, buttons, fields), plus the crucial caveat that nothing executes. What remains unstated — auth requirements or what the guide looks like if the user is not signed in — is minor for a zero-parameter guidance tool.

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 schema carries no semantic burden and the baseline is 4. The description correctly implies no inputs are needed and instead spends its words on what comes back.

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 concrete verb+resource (add client in PT Distinction) and immediately clarifies the important twist that it only returns step-by-step instructions rather than performing the action. The opening phrase 'Add client... from ChatGPT, Claude or any AI agent' momentarily reads like an action verb and mirrors the title, so the agent must reach the second sentence to learn the tool is instructional; it is nonetheless distinguishable from the cotlet_browser_* executors once read fully.

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 usage pattern: call this first to get the screens/buttons/fields, then perform the action with the cotlet_browser_* tools in the Cloud Browser. It does not state when to prefer a sibling such as pt_distinction_add_client_to_group or assign_program, so exclusions are absent, but the sequencing context is clear.

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