A read-only skill for checking the state of a CNC machine, a computer-controlled cutting or machining device. It can query position, settings, loaded G-code (machine instructions), alarms, workflow state, and job progress.

Use it to monitor jobs, inspect machine and work coordinates, review settings, check the active G-code, decode alarms or errors, and view configured machines or macros.

It provides machine information without changing the machine's state. This helps identify whether a job is running, paused, blocked by an alarm, or at the expected position.

cnc-status — Skill for Claude Code by brs077

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add brs077/CNC-design-control-MCP --skill cnc-status

Clone the repo

git clone --depth 1 https://github.com/brs077/CNC-design-control-MCP

Made for: Claude Code.

Or install cncjs-mcp, the plugin that ships this one along with the rest of its 12 skills, 4 commands, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/brs077/cnc-design-control-mcp/cnc-status/github.svg)](https://agentmods.dev/skills/brs077/cnc-design-control-mcp/cnc-status)

Your own site

<a href="https://agentmods.dev/skills/brs077/cnc-design-control-mcp/cnc-status"><img src="https://agentmods.dev/badge/skills/brs077/cnc-design-control-mcp/cnc-status/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/brs077/cnc-design-control-mcp/cnc-status"><img src="https://agentmods.dev/badge/skills/brs077/cnc-design-control-mcp/cnc-status.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 379 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00038	$0.00379
Opus 5	$0.00019	$0.00189
Sonnet 5	$0.00008	$0.00076
Haiku 4.5	$0.00004	$0.00038

Measured 10d ago against content hash b7d8cd58e320, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

cnc-status scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/cnc-status/SKILL.md · 33 lines

What it actually says

CNC Machine Status & Monitoring

Query the current state of the CNC machine. All tools are read-only and safe to use at any time.

Available MCP Tools

get_machine_state — Full GRBL state: positions, feed rate, spindle speed, overrides, buffer status
get_machine_position — Current machine and work coordinates (X, Y, Z)
get_work_coordinate_offset — Work coordinate system offsets (G54-G59)
get_machine_settings — All GRBL $ settings with descriptions and units
get_parser_state — Active G-code modal state (units, distance mode, feed rate mode, etc.)
get_loaded_gcode — Currently loaded G-code content and metadata
get_job_progress — Job progress: lines sent/total, elapsed time, estimated remaining
get_workflow_state — CNCjs workflow state (idle, running, paused)
get_feeder_status — G-code feeder queue status
get_console_output — Recent serial console messages (last 200 lines)
get_alarm_info — Decode GRBL alarm codes with descriptions and solutions
get_error_info — Decode GRBL error codes with descriptions
list_macros — List all CNCjs macros
list_machines — List configured machine profiles

Tips

Use get_machine_state for a comprehensive snapshot
Use get_job_progress to monitor running jobs
Use get_alarm_info when the machine enters an alarm state
Use get_console_output to debug communication issues

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

10d ago First seen · 33 lines · 38 tokens per session scan A b7d8cd58e320

Subscribe to this mod's changes

cnc-status is a skill published in the GitHub repository brs077/CNC-design-control-MCP (1 stars, last pushed 5mo ago), licensed MIT. It adds 38 tokens to every session and 379 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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