spawn_play_console

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

No annotations are provided, so the description bears full responsibility for disclosing behavioral traits. While 'Return' implies a read-only operation, it does not specify whether messages are cleared, the meaning of 'recent' (time window), or any side effects. This lack of detail could mislead the agent about the tool's effects.

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, no wasted words. The first sentence front-loads the action and subject, and the second provides a cross-reference. Structure is optimal for quick comprehension.

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?

The description captures the essential purpose and context (browser console vs server logs), and the schema covers the filter types. However, without an output schema, it doesn't describe the return format or ordering, and the semantics of 'limit' remain unclear. For a simple read tool, this is adequate but leaves noticeable gaps.

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 50%: only the 'types' parameter has a description with example values, while 'limit' has no description. The tool description adds no parameter-specific meaning, leaving 'limit' ambiguous (e.g., count limit, default value, application scope). The description should have compensated for this missing schema detail.

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 ('Return') and resource ('recent browser console / pageerror messages from the play session'), clearly distinguishing it from server-side logging. It also explicitly names the sibling tool spawn_logs, making the differentiation unambiguous.

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 provides explicit usage guidance by stating 'Pair with spawn_logs for server-side script errors.' This tells the agent when to use this tool (client-side messages) and implicitly when not (server-side errors), offering a clear alternative.

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