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

Annotations already declare read-only, idempotent, closed-world, non-destructive behavior, and the description adds genuinely new context: the call is 'Free, no browser session', so an agent knows it incurs no cost and does not open or consume a browser. It also enumerates what the response contains, which is valuable given there is no output schema. It does not address what happens if the app is unknown or how long the returned method is, but the core behavioral profile is well covered.

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 content is dense but every clause maps to something the agent needs: trigger timing, scope, cost, and coverage of Podium actions. The critical instruction 'Call it before the first browser step' sits in the middle of the block rather than up front, and the trailing Podium action list is long, which prevents a 5.

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 two-optional-parameter, read-only reference tool with no output schema, the description does the necessary work: it says what the guide contains, when to call it, and that it is free of browser-session side effects. A short note on what the response looks like structurally (or how task influences it) would close the remaining gap.

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 coverage is 100% and both parameters are optional with defaults already documented in the schema, so the baseline is 3. The description adds some meaning for the app parameter by explaining that non-catalog apps fall back to the general method, but it says nothing about how the task parameter shapes the returned guidance, so it only partially extends the 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 the resource concretely: a guide returning which browser to use for the workspace, the sign-in link, a step-by-step method, the app's screens/menus/actions, notes, and the app's dedicated tools. It distinguishes itself from the browser_* primitives by positioning itself as the preparatory reference rather than the click action. The opening phrase 'How to work in an app by clicking in the user's Cloud Browser' is slightly convoluted, which keeps it from 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?

'Call it before the first browser step in an app' gives an explicit trigger point, and 'Works for any web app; one outside Cotlet's catalog gets the general method' sets scope expectations. It implies but never explicitly states the routing rule that an agent should prefer the app's dedicated tools (e.g. podium_send_message) over browser steps when they exist, leaving that inference to the reader.

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