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Factorio LLM Use
by Tsyklop

get_action_status

Retrieve completion, cancellation, or failure status for a current or most recent Factorio action by action ID.

Instructions

Read completion, cancellation or failure of the current or most recent action.

Input Schema

NameRequiredDescriptionDefault
action_idNo

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.1

TDQS

B3.3/5.0
Behavior3/5

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

With no annotations, the description carries the full burden; the verb 'read' usefully signals a non-mutating operation and the scope is bounded to current/most recent. However, it is silent on what happens when no action exists, whether the call blocks until completion, or whether an unknown action_id errors — all relevant for a status-polling tool.

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?

One front-loaded sentence with no filler; every clause contributes scope or outcome information.

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?

An output schema exists, so return values need not be described, and the tool is structurally simple. Still, the missing edge-case behavior (no pending action, invalid id, blocking semantics) leaves gaps for an agent that needs to poll reliably.

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 0% for the single optional action_id, so the description must compensate. 'Current or most recent action' does implicitly explain the null default (omit the id to get the latest action), which is real added meaning, but it says nothing about accepted id formats or invalid-id behavior.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description gives a specific verb ('read') and resource ('action status') and even enumerates the outcomes reported (completion, cancellation, failure). It does not differentiate itself from nearby siblings such as get_agent_status or cancel_action, so the agent cannot rule out the alternatives from the text alone.

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

Usage Guidelines2/5

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

There is no explicit statement of when to call this versus get_agent_status or cancel_action, and no guidance on when to supply action_id versus relying on the default. The phrase 'current or most recent action' hints at a polling use case, but the agent must infer it.

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