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

Annotations already cover the safety profile (readOnly, non-destructive, closed-world). The description adds a genuinely useful behavioral fact beyond that: app automation sessions produce a not-found result rather than logs, which prevents a wasted call. Return format and pagination are still unstated.

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?

Two tight sentences: the core action first, then the web-only constraint and the escape hatch to listMobileSessions. Every clause earns its place with no filler.

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?

No output schema exists, so the description ideally would hint at log shape or volume, which it does not. However, it fully covers the tool's scope, the platform constraint, and the failure case, which is sufficient for a single-parameter log retrieval call.

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% and there is a single required parameter, so the schema carries the semantic load (session ID, with the DA-WIN- example). The description only confirms 'for a test session' and adds no format or syntax detail beyond 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?

States a specific verb (Retrieve) and resource (v2 Selenium/WebDriver grid request and response logs) scoped to a test session. It clearly separates web automation from app automation sessions, though it does not explicitly disambiguate itself from the similarly named sibling getSessionV2CommandLogs.

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?

Explicitly states the when-not: app automation sessions return not found. It also names an alternative (listMobileSessions) for video and screenshot links, though it does not route the agent among the other v2/automation log siblings.

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