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get_filament_status

Check filament runout sensor status for OctoPrint and Moonraker printers. Verify filament detection before printing.

Instructions

Get the filament runout sensor status (OctoPrint and Moonraker only).

Returns sensor information including:
- ``detected``: whether filament is currently detected by the sensor
- ``sensor_enabled``: whether the runout sensor is active

Use this to verify filament is loaded before starting a print on
non-Bambu printers.

For Bambu Lab printers, use ``ams_status()`` instead — it provides
per-tray filament presence, type, color, and remaining percentage.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior4/5

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

Describes returned fields (detected, sensor_enabled) and implies read-only behavior. No annotations provided, so description covers main behavioral aspects, though doesn't discuss potential side effects or prerequisites in detail.

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?

Three sentences with clear front-loading: scope, return fields, usage guidance. No unnecessary words.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given simple tool with no output schema, description adequately explains return values and usage context. Sibling tools are referenced appropriately.

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

Parameters4/5

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

No parameters in schema; description adds no parameter info, but baseline for 0-param tool is 4, and schema coverage is 100%.

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 it gets filament runout sensor status specifically for OctoPrint and Moonraker, distinguishes from sibling ams_status for Bambu printers.

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

Usage Guidelines5/5

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

Explicitly states when to use (verify filament before starting print on non-Bambu printers) and when not (use ams_status for Bambu Lab printers).

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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