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jau123

MeiGen AI Image Generation MCP

comfyui_workflow

Destructive

Manage ComfyUI workflow templates: list, view parameters, import from file, modify settings, or delete.

Instructions

Manage ComfyUI workflow templates: list, view parameters, import from file, modify settings, or delete.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
actionYesAction to perform on ComfyUI workflows
nameNoWorkflow name. Required for view/modify/delete. For import, used as the save name (defaults to filename).
filePathNoPath to a ComfyUI API-format workflow JSON file (for import action).
nodeIdNoNode ID to modify (for modify action). Use "view" action first to see available node IDs.
inputNoInput field name to modify (for modify action). E.g. "steps", "cfg", "sampler_name", "ckpt_name".
valueNoNew value as JSON (for modify action). Examples: "30", "\"euler\"", "7.5", "true".
Behavior3/5

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

Annotations already provide destructiveHint: true, so the description adds minimal behavioral context. It mentions delete action, which aligns, but no additional traits like persistence or side effects are disclosed.

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

Conciseness5/5

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

Single sentence with front-loaded actions. No wasted words. Efficient and clear.

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

Completeness4/5

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

Given 6 parameters, 1 required, no output schema, and rich sibling context, the description covers the gist well. Could mention return values for list/view, but overall adequate.

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

Parameters3/5

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

Schema coverage is 100% with detailed descriptions. The description adds marginal value, e.g., default save name for import. Baseline 3 is appropriate as the schema carries most semantic weight.

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 it manages ComfyUI workflow templates and lists specific actions (list, view, import, modify, delete). This verb+resource combination distinguishes it from siblings which are about prompt/image generation, models, preferences, etc.

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

Usage Guidelines4/5

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

The description implicitly identifies this as the sole tool for workflow management, but lacks explicit guidance on when to use vs alternatives or when not to use. It does provide parameter dependencies in schema descriptions, e.g., which actions require which parameters.

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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