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phiresky
by phiresky

find_entities

Find entities on a Factorio surface by name, type, or area. Get position, name, and health for each match.

Instructions

Search for entities on a surface. Can search by name, type, or area. Returns position, name, health, and other info for each match.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameNoEntity name filter (e.g. 'assembling-machine-3')
typeNoEntity type filter (e.g. 'assembling-machine', 'furnace', 'inserter')
limitNoMax results to return (default: 50)
radiusNoSearch radius around position (default: 50)
surfaceNoSurface name (default: 'nauvis')
positionNoCenter position for area search
Behavior2/5

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

No annotations provided, so description carries full burden. Mentions return info but does not disclose any behavioral traits (e.g., read-only, rate limits, side effects). Brief and lacks depth.

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?

Two sentences, front-loaded with action, no redundant information. Highly efficient.

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?

With 6 parameters and no output schema, description explains search modes and basic return fields but omits details on combining criteria, defaults, or scope. Adequate but incomplete for a search tool.

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

Parameters3/5

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

Schema coverage is 100%, so description adds little beyond listing search criteria. Baseline 3 is appropriate as the description does not significantly enhance schema meanings.

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?

Description clearly states the verb 'Search', resource 'entities on a surface', and search criteria (name, type, area). Distinguishes from sibling tools which are mostly specific getters.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Implies usage for generic entity search but lacks explicit when-to-use or when-not-to-use guidance. Does not mention alternatives among siblings.

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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