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brianpelow

mcp-developer-portal

by brianpelow

scaffold_service_tool

Scaffold a new service from a golden-path template by providing template name, service name, and owner.

Instructions

Scaffold a new service from a golden-path template.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
template_nameYes
service_nameYes
ownerYes
descriptionNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

Without annotations, the description must disclose behavioral traits like side effects, permissions, or rate limits. It only says 'scaffold a new service' without explaining what that entails (e.g., file creation, configuration). Minimal transparency.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single concise sentence that identifies the main action. It is appropriately front-loaded and not verbose, though it sacrifices detail for brevity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no annotations and 0% schema coverage, the description leaves out critical context such as return values, prerequisites (e.g., template existence), and post-conditions. An output schema exists but is not leveraged by the description.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, and the description adds no meaning to the parameters. The four parameters (template_name, service_name, owner, description) are not explained beyond their names. The description's mention of 'golden-path template' only hints at template_name.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action (scaffold) and the resource (new service), specifying it's from a golden-path template. This is a specific verb+resource combination that distinguishes it from sibling tools like get_dependencies or list_templates.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is provided on when to use this tool versus alternatives, prerequisites, or when not to use it. The description only states what it does, leaving the agent with no context for decision-making.

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

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