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

With no annotations, the description carries the full burden, and it does establish that this is a non-mutating analysis of an external URL that performs no account writes. It omits other behaviorally relevant facts: whether the URL must be publicly reachable, auth or rate-limit requirements, expected latency/cost, and what happens when a check fails or the page is unreachable.

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 sentences, front-loaded with the action and scope, followed by the return shape and then the exclusions. No filler and no repetition of the tool name.

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-parameter, non-destructive analysis tool with no output schema, the description covers what it does, what it returns at a high level (scores, evidence, fix packs, resources), and what it will not do. The remaining gap is the lack of differentiation from sibling audit tools, which matters given how many near-duplicates exist.

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 0%, so the description must compensate, and it partly does: 'launch, technical, and agent-readiness' explains the three enum values of `checks`, and 'public URL' signals that `url` must be externally reachable rather than internal or authenticated. It still does not state whether `checks` is optional and defaults to all three, which the schema alone leaves ambiguous.

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 gives a specific verb and resource ('Audit a public URL') plus the three check families it covers, which is far more than a restatement of the name. It does not name the closely related siblings (assess_launch, verify_launch_audit, reassess_launch), so an agent still has to infer the boundary from those tools' own definitions.

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?

'No account actions, provider generation, or publishing' is a useful negative scope statement that rules out create_recommended_asset, preview_recommended_asset, and publishing paths. However, there is no positive when-to-use guidance and no explicit routing against assess_launch or verify_launch_audit, which are the most likely confusions.

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