arcade_game

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

With no annotations provided, the description carries the full burden of behavioral disclosure. While it mentions generating 'production-ready code, tests, and documentation' and saving 'Claude context for strategic decisions,' it doesn't address critical behavioral aspects like whether this is a read-only or write operation, what permissions are needed, whether it creates files or modifies existing ones, error handling, or rate limits. The description provides some context but leaves significant gaps for a tool with 13 parameters.

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 appropriately sized and well-structured with clear sections (main description, WORKFLOW, TIP, SAVES). Each sentence adds value, though the 'SAVES' section could be more clearly integrated. It's front-loaded with the core purpose, making it easy to understand quickly without unnecessary verbosity.

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 the tool's complexity (13 parameters, no annotations, no output schema), the description is moderately complete. It covers the purpose, workflow, and strategic context but lacks details about behavioral traits, output format, error handling, and specific usage boundaries. For a tool of this complexity without annotations or output schema, the description should provide more comprehensive guidance to be fully adequate.

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 schema description coverage is 100%, so the schema already documents all 13 parameters thoroughly with descriptions and enums. The description adds no specific parameter information beyond what's in the schema. According to the scoring rules, when schema coverage is high (>80%), the baseline is 3 even with no param info in the description, which applies here.

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 clearly states the tool's purpose: 'Generate complete playable 2D arcade games using HTML5 Canvas with player controls, enemies, and game mechanics.' This specifies the verb ('Generate'), resource ('2D arcade games'), and key components. However, it doesn't explicitly differentiate from sibling tools like 'create_text_adventure' or 'css_art_generator' which are also creative generation tools.

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 implied usage guidance through the 'WORKFLOW' and 'TIP' sections, suggesting it's 'Ideal for creating production-ready code, tests, and documentation' and recommending 'Generate unlimited iterations locally, then review with Claude.' However, it doesn't explicitly state when to use this tool versus alternatives like 'create_text_adventure' or when not to use it, nor does it mention prerequisites.

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