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set_default_workspace

Save a ComfyUI workspace path as the default for future reference without altering the current live API target.

Instructions

Persist a default ComfyUI workspace path to the MCP config file (mirrors comfy-cli set-default). The value is stored under the OS config dir (e.g. ~/.config/comfyui-mcp/workspace.json) and reported by get_workspace/list_workspaces. Does NOT change the live API target.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pathYesAbsolute path to a ComfyUI installation directory to remember as the default workspace.
Behavior5/5

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

With no annotations provided, the description fully discloses the behavior: it writes to a config file under the OS config dir, persists the value, and does not change the live API target. This is clear and honest.

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?

The description is two sentences, front-loaded with the main action, and every word contributes meaning. No fluff.

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

Completeness3/5

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

The description lacks information about the tool's return value or output. Since there is no output schema, the agent would benefit from knowing what to expect after invocation (e.g., success message). Otherwise, the behavior is adequately covered.

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

Parameters4/5

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

Schema coverage is 100%, so the baseline is 3. The description adds value by explaining that the path is persisted to a specific location and is reported by other tools, which complements the schema's description of the parameter.

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 tool persists a default ComfyUI workspace path to a config file, mirroring `comfy-cli set-default`. It distinguishes itself from siblings `get_workspace` and `list_workspaces` by noting that they report the stored value, and it explicitly says it does not change the live API target.

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 explains that the tool is used to set a default workspace persistently and that it does not affect the live target. However, it does not mention the sibling `set_defaults` (which might be related) or provide explicit guidance on when to use this tool versus alternatives.

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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