mod_scaffold

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

Annotations already indicate destructiveHint=true, and the description is consistent ('Create'). However, no additional behavioral traits are disclosed (e.g., whether it overwrites existing workspaces, filesystem impacts, or required permissions). The description adds 'path-confined' context but lacks depth beyond the annotation.

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 10-word sentence that efficiently conveys the core purpose. It is front-loaded and contains no unnecessary words or repetition.

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 tool with 4 parameters (3 required) and an output schema, the description is minimal. It does not mention output format, error conditions, relationship to other mod tools, or lifecycle context (e.g., should this be used before mod_validate?). It meets the minimum viable bar but leaves 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 0%, meaning the JSON schema provides no parameter descriptions. The tool description only vaguely mentions 'manifest and type-specific roots' but does not explain individual parameters (mod_name, title, author, kind). The agent is left to infer meaning from parameter names 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 action ('Create'), the resource ('mod workspace'), and key specifics ('path-confined', 'with a manifest and type-specific roots'). It distinguishes this tool from siblings like mod_file_list and mod_pack, which do different operations.

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 no guidance on when to use this tool versus alternatives (e.g., mod_validate, mod_install), nor any prerequisites or context for its use. It only states what it does, leaving the agent to infer usage.

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