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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false, and destructiveHint=false, so safety is covered. The description adds real behavioral context beyond that: it is free (no cost), opens no browser session, and degrades gracefully to a general method for apps outside the catalog. It does not describe response size or structure, but that is a minor omission given the annotation coverage.

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 lead sentence is a long run-on that packs purpose, contents, and usage into one clause chain, and the Bokadirekt action list largely duplicates information already visible in the bokadirekt_* sibling tool names. The timing instruction ('Call it before the first browser step') is buried mid-description rather than front-loaded. It is dense rather than bloated, but the structure could be tightened considerably.

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?

There is no output schema, and the description compensates by enumerating what the guide returns: browser choice, sign-in link, step-by-step method, screens/menus/actions, and notes. For a read-only guidance tool with fully documented parameters, an agent has enough to decide to call it and to form expectations about the result. Only the guide's length/format granularity is left unstated.

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 description coverage is 100%, so both parameters are already documented in the schema, and the description's note that 'app' defaults to Bokadirekt merely restates it. It adds a small amount of intent framing by implying 'task' is the user's own phrasing, but nothing about the app-name/slug format or how the task text shapes the returned guide. Baseline 3 is appropriate when the schema carries the parameter burden.

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 resource (a how-to playbook for working in a given web app) and enumerates what it contains: which browser to use, the sign-in link, the step-by-step method, screens/menus/actions, and notes. It distinguishes itself from the browser_* siblings with 'Free, no browser session' and 'Call it before the first browser step.' The opening phrase 'How to work in an app by clicking in the user's Cloud Browser' is slightly convoluted, which keeps this just 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?

Explicit timing guidance is given: 'Call it before the first browser step in an app,' which tells the agent exactly where this fits in a sequence. It also clarifies coverage ('Works for any web app; one outside Cotlet's catalog gets the general method') and points to the app's dedicated tools 'when Cotlet has them.' It stops short of an explicit when-not-to-use or a direct named alternative, so it is strong context rather than a complete routing rule.

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