add_predict_projectile_path_node

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

No annotations are present, so the description carries the behavioral transparency burden. It clearly indicates the mutation ('Add a ... node') and discloses the return behavior (predicted path positions array and landing location). It does not discuss side effects, compile/save implications, or failure modes, but it does not contradict any annotation because none exist.

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 front-loaded with the core action and remains compact: a purpose sentence, a short context sentence, an Args list, a KB pointer, and an example. The structure is easy to scan and every section contributes useful information, even if the Ch. 16 reference is supplementary.

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 4-parameter add-node tool with an output schema, the description covers the target blueprint, all parameter meanings, a concrete example, and a KB reference. It does not mention prerequisites or duplicate-node behavior, but the output schema handles return values, so the essential invocation guidance is present.

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 description coverage is 0%, so the description must compensate. The Args section provides a one-line meaning for every parameter: blueprint_name, simulation_frequency, max_sim_time with seconds unit, and node_position as [X, Y]. This adds real value beyond the schema titles, though simulation_frequency lacks units or recommended ranges.

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 opens with a specific action and object: 'Add a PredictProjectilePathByObjectType node' and scopes it to 'VR teleport arc.' It also explains that the TeleportTrace function uses this node to calculate arc trajectory, so an agent can tell this is the teleport-arc node rather than a generic blueprint node addition. However, it does not explicitly name or contrast sibling tools, so it stops short of full differentiation.

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 'From Ch. 16' context and 'for VR teleport arc' provide clear situational guidance: use this when wiring the TeleportTrace arc trajectory. It does not state exclusions or compare with alternatives such as add_teleport_node or add_teleport_system_to_pawn, so it lacks explicit when-not-to-use routing.

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