modify_workflow

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

Describes return value (modified JSON and new node IDs) but lacks details on order of operations, atomicity, error handling, or whether changes are persisted. No annotations to supplement.

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?

Single sentence with clear verb and resource, followed by operation list. No filler, front-loaded, every sentence adds value.

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?

Adequate for a tool with good schema coverage but lacks details on execution semantics (order, atomicity, persistence) and does not explain the return format beyond presence of node IDs.

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 covers all parameters with descriptions. Description lists operation types but adds no new meaning to individual parameters. Returns info is extra but not parameter-specific.

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?

Clearly states it modifies an existing ComfyUI workflow, lists supported operations (set_input, add_node, etc.), and specifies return value. Differentiates from sibling tools like create_workflow and analyze_workflow.

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?

Implied usage for modifying workflows but no explicit when-to-use or when-not-to-use compared to alternatives like save_workflow or validate_workflow.

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