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MCP 3D Printer Server

get_printer_status

Fetch the current status of a 3D printer from supported management systems like OctoPrint, Klipper, and Duet. Monitor printer state and parameters.

Instructions

Get the current status of the 3D printer

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
hostNoHostname or IP address of the printer (default: value from env)
portNoPort of the printer API (default: value from env)
typeNoType of printer management system (octoprint, klipper, duet, repetier, bambu, prusa, creality) (default: value from env)
api_keyNoAPI key for authentication (default: value from env)
bambu_tokenNoAccess token for Bambu Lab printers (default: value from env)
bambu_serialNoSerial number for Bambu Lab printers (default: value from env)

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.2.9

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full disclosure burden, yet it says nothing about authentication requirements, network behavior, failure modes, or whether it is a safe read operation. It discloses no behavior beyond the bare action.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single front-loaded sentence with no wasted words. It is efficient, though its brevity is partly the source of the definition's gaps.

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

Completeness2/5

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

With six connection parameters, no annotations, and no output schema, the description should explain what status information is returned and any connection/auth expectations. As written it is too thin for the tool's configured surface.

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 description coverage is 100%, so all six parameters (host, port, type, api_key, bambu_token, bambu_serial) are already documented, including that they default from env. The description adds no parameter meaning beyond the schema, so the baseline 3 applies.

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?

States a specific verb (Get) and resource (current status of the 3D printer), so the action is unambiguous. It does not differentiate from siblings such as list_printer_files or get_slice_settings, which also read printer state.

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 when-to-use guidance, no mention of alternatives, and no prerequisites (e.g. needing a configured host or API key). Usage is only implied by the tool name.

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