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

Beyond the readOnly/idempotent annotations, the description discloses the non-obvious behavior that matters most: the tool "opens nothing by itself" and only returns instructions, so the real work happens through cotlet_browser_*. It also preempts the obvious question of why not use EstimateOne's own API by noting it is non-self-service and read-only. It does not cover auth/connection requirements or what happens if the account is not linked.

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 operative facts (returns a procedure, side-effect free, follow up with browser tools) are front-loaded and useful. However, "from ChatGPT, Claude or any AI agent" is marketing filler, and the trailing API sentence is a long aside whose relevance is only implicit rather than connected with a "therefore use this tool" link.

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?

For a parameterless, no-output-schema helper the description does the heavy lifting: it characterizes the return value (a step-by-step walkthrough with screens/buttons/fields) and the required follow-up toolset. The remaining gap is situational preconditions — account connection state and how the specific tender is identified before the walkthrough can be applied.

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?

With zero parameters the baseline is a 4, but the central semantic question for a "get tender details" tool is which tender is targeted, and the description never says how the target is determined (presumably from prior conversation or browser state). Since there is no schema field to answer that, the description is the only place it could have been resolved and it is silent.

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 makes the crucial correction to the name: this tool does not fetch tender data, it returns a step-by-step guide for retrieving tender details in EstimateOne. That verb+outcome is stated concretely ("screens, buttons, fields"). It stops short of distinguishing itself from EstimateOne data siblings like estimateone_search_tenders or estimateone_list_leads, which an agent may consider for the same goal.

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 usage chain: call this first to get the procedure, then execute it with cotlet_browser_* tools in the Cloud Browser. That is genuinely actionable sequencing. It offers no when-not guidance, no alternatives among the EstimateOne API siblings, and no prerequisites (e.g., must the user already have EstimateOne connected, must a tender already be identified?).

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