get_node_pack_details

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

With no annotations, the description carries the full burden. It discloses that the operation is read-only, network-only (hosted registry over HTTP), and independent of a running ComfyUI. This is valuable behavioral context beyond the input schema, though it omits potential rate limits or caching behavior.

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 concise, with no redundant sentences. It front-loads the main purpose and lists the returned fields in a single sentence. Every sentence contributes essential information.

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?

Given the absence of an output schema, the description adequately enumerates the return value components (description, author, license, etc.) and explains the environment constraints. For a single-parameter retrieval tool, this is complete and sufficient for an agent to understand what to expect.

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 coverage is 100% and the description does not repeat schema details, but it adds value by explaining how to obtain the parameter value: 'Look up the pack id via search_custom_nodes first.' This cross-tool guidance exceeds the baseline of 3.

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 verb 'Get full details' and the resource 'one ComfyUI custom node pack from the public ComfyUI Registry', listing the included fields. It distinguishes itself from sibling tools like search_custom_nodes by specifying that lookup must precede this call.

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 explicit guidance: 'Look up the pack id via search_custom_nodes first.' It also states that the tool is read-only and network-only, and does not require a running ComfyUI, implying appropriate usage contexts. However, it does not explicitly list when not to use it or alternative tools.

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