add_set_intersection_node

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

No annotations exist, so the description must carry the behavioral disclosure. It explains what the inserted node computes, which is useful, but it does not note that the call mutates the blueprint graph, whether it wires pins, or whether a later compile/save is expected.

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 short, front-loads the core operation, and includes a useful example and KB link. It loses a point because the 'From Ch. 13' line restates the previous sentence rather than adding new 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?

For a simple two-parameter add-node tool, it covers the target, optional position, and an example, and an output schema exists so return values do not need explaining. It is not fully complete because it omits mutation/wiring expectations and explicit alternative selection, which an agent may need when operating on real blueprints.

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 descriptions are absent, and this description compensates by explaining blueprint_name as the target blueprint and node_position as an [X, Y] graph coordinate. The example also demonstrates omitting node_position, though explicit optionality and coordinate reference details are not stated.

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 opening line states a specific action and object ('Add a Set INTERSECTION node') and immediately defines what intersection means ('elements common to both sets'). This semantic definition separates it from sibling set tools like add_set_union_node and add_set_difference_node without ambiguity.

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 the semantic context needed to decide on intersection, so the usage is inferable. It never explicitly says when to prefer this over union/difference/contains nodes or when not to use it, leaving the selection routing implicit.

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