Create ASCII render

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

Annotations (readOnlyHint=false, destructiveHint=false, openWorldHint=true) are consistent with the description's creation behavior. The description adds valuable behavioral context: it creates multiple named TOPs (resolutionTOP, textTOP, glslTOP, nullTOP) inside a new baseCOMP. This goes beyond the annotations by detailing what is produced, though it could mention side effects on existing nodes.

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 tightly written in three sentences that front-load the main verb and resource. Every sentence carries essential information: purpose, process, mode options, default style, and outputs. No filler or redundancy.

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 11 parameters and no output schema, the description adequately covers the tool's workflow: input source, grid conversion, color modes, and created outputs. It even notes a fallback source for privacy. However, it omits potential error states (e.g., invalid source path) and assumes familiarity with TOP, COMP terminology.

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 coverage is 100%, so parameters are well-documented. The description enhances meaning by explaining the overall process (e.g., 'quantise input luminance into a grid') and contextualizing parameters like charset ('Dark→light glyph ramp') and color_mode ('mono', 'source-color', etc.). This adds value beyond the schema alone.

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 core function: 'Turn any TOP into a character-grid ASCII render'. It explains the quantization and lookup process, and distinguishes this from other creation tools by detailing specific outputs and modes. The verb 'create' matches the tool name and effectively communicates the action.

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 does not explicitly compare this tool to alternatives or state when to avoid it. It mentions a default aesthetic ('Phosphor-green default for the Severance / CRT terminal look') which implies a use case, but lacks direct guidance on choosing this over the many sibling create_* tools.

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