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

Consistent with readOnlyHint=true: 'opens nothing by itself' confirms no side effects occur. It adds genuine context beyond the annotations by explaining why the browser path is needed — Sprout Social's REST API is Advanced-plan-only and 'reads more than it writes' — which tells the agent this cannot be done through a direct API call. It does not describe the shape or length of the returned step-by-step content, which would have pushed it higher.

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 purpose and the 'opens nothing by itself' constraint, which is the most important fact. However, 'from ChatGPT, Claude or any AI agent' is filler, and the API-plan aside plus the '(checked 17 Oct 2026)' date add length without changing how the agent invokes the tool.

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 zero parameters, no output schema, and only safety annotations, the description carries the burden well: it says what comes back (step-by-step screens, buttons, fields) and what to do next (browser tools). The main residual gap is not indicating how granular or long that returned procedure is, but nothing essential for correct invocation is missing.

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. The description does not need to explain any inputs, and it correctly implies the target (the user's own Sprout Social account) is determined by session context rather than arguments.

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 ('Assign case in the user's own Sprout Social account') and immediately clarifies the actual mechanic: it 'Returns how to do it in Sprout Social step by step (screens, buttons, fields) and opens nothing by itself.' That resolves the ambiguity between the name (which sounds like a write action) and what the tool really produces. It does not explicitly differentiate itself from the other sprout_social_* siblings, keeping it below a 5.

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 two-step workflow: call this to get the procedure, then 'do it with the cotlet_browser_* tools in the user's Sprout Social Cloud Browser.' The named alternative is concrete and actionable. It stops short of stating when not to use it (e.g., relative to sprout_social_reply_to_message or the read-only siblings), so no exclusion criteria are given.

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