Agent skill

Qemu Startup

by lazyFrogLOL in lazyFrogLOL/Harness_Engineering

This skill provides guidance for starting QEMU virtual machines with proper serial console access, process management, and boot verification.

No licenceAuto-check passed

Install Qemu Startup

skills CLI
$ npx skills add lazyFrogLOL/Harness_Engineering --skill qemu-startup -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install lazyFrogLOL/Harness_Engineering qemu-startup --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/lazyFrogLOL/Harness_Engineering.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/qemu-startup .claude/skills/qemu-startup && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
qemu-startup
GitHub stars
128
Token cost
~1.5k tokens
SKILL.md length
508 words
Files
1
Skills in repo
32
Repo updated
First seen
Licence
None found

At a glance

This skill provides guidance for starting QEMU virtual machines with proper serial console access, process management, and boot verification.

  • Works in 4 steps: Tool Availability Check → KVM Availability Check → Port Availability Check → …
  • SKILL.md covers Pre-Flight Verification, QEMU Serial Console…, Process Management Strategy and Boot Verification Approach, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Qemu Startup is an agent skill from lazyFrogLOL/Harness_Engineering. This skill provides guidance for starting QEMU virtual machines with proper serial console access, process management, and boot verification. It should be used when tasks involve launching QEMU VMs, configuring serial/telnet console access, or managing VM lifecycle. Covers common pitfalls around KVM availability, port conflicts, process hierarchy, and boot readiness detection.

Its SKILL.md is about 1.5k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

Example prompts

  • “/qemu-startup”

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Tool Availability Check
  2. KVM Availability Check
  3. Port Availability Check
  4. Required Files Check

What it can do on your machine

Read from SKILL.md and the folder at commit cae3b25. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Qemu Startup loads about 1.5k tokens when it runs. Until then it costs about 98 tokens; SKILL.md has 508 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~98
When it runs · the whole SKILL.md, loaded when a task matches
~1.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 508 words (~1,501 tokens).

“This skill guides the process of starting QEMU virtual machines with accessible serial consoles, typically via telnet. It addresses process management challenges, console configuration, and boot verification in environments where standard system tools may be limited.”

— opening of SKILL.md by lazyFrogLOL
name
qemu-startup

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/qemu-startup of lazyFrogLOL/Harness_Engineering.

Open the folder on GitHubat commit cae3b25

Compare with similar skills

Qemu Startup next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Qemu Startup compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Qemu Startup this skilllazyFrogLOL/Harness_Engineering128—~1.5kAutomated safety check: PassNone
StartDonchitos/Claude-Code-Game-Studios26k—~6.5kAutomated safety check: PassMIT
Start Building For Startupsaws/agent-toolkit-for-aws2.8k—~6.1kAutomated safety check: PassApache-2.0
Startup Canvasphuryn/pm-skills27k—~1.6kAutomated safety check: PassMIT
Measure Startup RequestsTriliumNext/Trilium38k—~1.5kAutomated safety check: PassAGPL-3.0
Virtualsalsk1992/CloddsBot3k—~464Automated safety check: PassMIT

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Questions about Qemu Startup

What does Qemu Startup do?

This skill provides guidance for starting QEMU virtual machines with proper serial console access, process management, and boot verification. Qemu Startup is an agent skill from lazyFrogLOL/Harness_Engineering. This skill provides guidance for starting QEMU virtual machines with proper serial console access, process management, and boot verification.

How do I install Qemu Startup in Claude Code?

Run `npx skills add lazyFrogLOL/Harness_Engineering --skill qemu-startup -a claude-code`. Or copy the skill folder (skills/qemu-startup in lazyFrogLOL/Harness_Engineering) into .claude/skills/qemu-startup in your project. Claude Code loads it when a task matches its description.

How do I install Qemu Startup in Codex?

Run `npx skills add lazyFrogLOL/Harness_Engineering --skill qemu-startup -a codex`. Or copy the skill folder (skills/qemu-startup in lazyFrogLOL/Harness_Engineering) into .agents/skills/qemu-startup in your project. Codex loads it when a task matches its description.

Can I use Qemu Startup in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add lazyFrogLOL/Harness_Engineering --skill qemu-startup -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/qemu-startup, .gemini/skills/qemu-startup, .github/skills/qemu-startup and .opencode/skills/qemu-startup in your project.

What does Qemu Startup need to run?

SKILL.md names no scripts, command-line tools or credentials: Qemu Startup is instructions for the agent only.

Does Qemu Startup access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Qemu Startup safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Qemu Startup use?

No licence was found for Qemu Startup or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Qemu Startup use?

About 1.5k tokens (SKILL.md is roughly 6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Qemu Startup?

Skills that share tags, products or a category with Qemu Startup: Start (Donchitos/Claude-Code-Game-Studios, 26k stars), Start Building For Startups (aws/agent-toolkit-for-aws, 2.8k stars), Startup Canvas (phuryn/pm-skills, 27k stars) and Measure Startup Requests (TriliumNext/Trilium, 38k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Qemu Startup?

lazyFrogLOL (a GitHub user) maintains it in lazyFrogLOL/Harness_Engineering, which has 128 GitHub stars. The repository holds 32 skills in this directory. The repository was last updated on May 18, 2026.

Source: lazyFrogLOL/Harness_Engineering on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.