check_ios_web_app_readiness

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

With no annotations provided, the description carries the full burden. It clearly states the tool performs an audit (read-only behavior) and lists the specific configurations checked. No destructive or mutating actions are implied. The description adds value beyond the empty input schema by detailing what the audit covers.

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 description is a single sentence, front-loaded with the action 'Audit the page for...' followed by a list of checks. It is concise but could be slightly improved by using bullet points or a more structured format for readability. However, it earns its place with specific, actionable information.

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?

Given zero parameters and no output schema, the description adequately explains the tool's functionality. However, it lacks information about the output format (e.g., returns a list of checks with pass/fail status) and does not mention any prerequisites (e.g., page must be loaded). For a tool with no params and no output schema, a 3 is appropriate because the agent might need to know what to expect from the response.

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 input schema has zero parameters, so schema coverage is 100%. Baseline is 4. The description does not need to add parameter info because there are none. It appropriately clarifies what the tool does without referencing parameters.

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 uses a specific verb 'Audit' and clearly states the resource 'iOS Safari Add to Home Screen / PWA readiness', listing exact items checked (apple-touch-icon, etc.). It distinguishes well from sibling tools like 'check_webkit_compatibility' which focuses on different aspects.

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?

The description implies usage for auditing PWA readiness on iOS Safari but does not specify when not to use it or provide alternatives. For example, it doesn't mention that this tool is iOS-specific or that other tools might be needed for Android PWA checks. Sibling tools like 'check_webkit_compatibility' could be alternatives, but no guidance is given.

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