agentmods.dev

qemu-build

qemu-build is a skill for Codex from processmission/oh-my-qemu. It costs 67 tokens per session (1,584 once invoked), scanned A, original, MIT.

A controlled workflow for configuring, reusing, building, and diagnosing QEMU, software that emulates computers and runs virtual machines. It organizes builds by target and records evidence in an audit folder.

In plain words
What is it for?
Use it for target-specific, debug, sanitizer, or trace builds; diagnosing build or runtime problems; recording the starting Git state; and keeping QEMU builds, dependencies, scripts, and logs in defined locations.
Why use it?
It makes QEMU builds reproducible and keeps decisions, commands, logs, configurations, and gaps separate from source code and unrelated files.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions subagents.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is ../../configure --target-list=aarch64-softmmu.

not rated 61repo +1 changed 18d ago A scan SkillSpector: pass 67 tokens original MIT

Good fit Use it for target-specific, debug, sanitizer, or trace builds; diagnosing build or runtime problems; recording the starting Git state; and keeping QEMU builds, dependencies, scripts, and logs in defined locations.

Compare 6 skills from other repositories ↓
View source ↗ processmission/oh-my-qemu processmission.github.io
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/processmission/oh-my-qemu
agentmods
npx agentmods add skills/processmission/oh-my-qemu/qemu-build

Made for: Codex.

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.

agentmods badge for qemu-build

README.md
[![agentmods](https://agentmods.dev/badge/skills/processmission/oh-my-qemu/qemu-build/github.svg)](https://agentmods.dev/skills/processmission/oh-my-qemu/qemu-build)
Your own site
<a href="https://agentmods.dev/skills/processmission/oh-my-qemu/qemu-build"><img src="https://agentmods.dev/badge/skills/processmission/oh-my-qemu/qemu-build/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.

agentmods 80×15 button for qemu-build

Your own site · 80×15
<a href="https://agentmods.dev/skills/processmission/oh-my-qemu/qemu-build"><img src="https://agentmods.dev/badge/skills/processmission/oh-my-qemu/qemu-build.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,584 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00067 $0.01584
Opus 5.5 $0.00027 $0.00634
Sonnet 5.5 $0.00013 $0.00317
Haiku 4.5 $0.00007 $0.00158

Measured 18d ago against content hash 439fb45f2a41, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

qemu-build 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 18d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/preflight.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/qemu-build/SKILL.md · 140 lines

How it starts

The opening of the file, as written. The whole thing — 140 lines — stays where its author put it; the contents beside it link to each section on GitHub.

QEMU Build

Audit workflow

For a non-trivial task that writes to the workspace, use only the needed entries under .oh-my-qemu/<task-slug>/: audit.md (baseline, plan, decisions, evidence, verification, and gaps), commands.md (redacted commands, working directories, and results), logs/ (decisive build, test, and runtime output), scripts/ (probes, parsers, and harnesses), and output/ (generated deliverables, third-party dependencies, and non-QEMU binaries). Keep QEMU's own build tree at source-root builds/build-<target>/, never an unqualified build/. In a Git worktree, add .agents/, .oh-my-qemu/, and builds/ to the file from git rev-parse --git-path info/exclude before writing artifacts or configuring QEMU; preserve existing entries and avoid duplicates. Never stage or commit these paths; stage source only when the user explicitly requests that separate action. At handoff, reconcile git status --short with the baseline and report the task directory, build directory, source changes, pre-existing changes, and unresolved gaps.

QEMU upstream boundary

QEMU's official GitLab and mailing lists are upstream channels. A patch becomes an upstream contribution when it is sent to the maintainers selected through MAINTAINERS. Do not prepare or send agent-generated code, documentation, commit messages, or patches for upstream submission; see the checked-out tree's docs/devel/code-provenance.rst. Research, debugging, analysis, local experiments, verification, and workflow guidance remain allowed. Local branches, commits, patch files, pushes, and pull requests are not by themselves upstream contributions; perform those Git actions only when requested.

Scope boundary

This skill configures and builds the QEMU source tree only. Use qemu-kernel-build for Linux kernel artifacts and qemu-uboot-build for U-Boot and firmware-stage artifacts. One named build directory per component; one skill per build class.

Build directory rule

Use a descriptive directory under source-root builds/ for every configuration, such as builds/build-aarch64/ or builds/build-riscv64-debug/. Never configure QEMU in build/, the source root, or the task output/ directory. Reuse a directory only when its recorded configuration matches the task.

Read the full file on GitHub · 140 lines

Files

What ships with it

4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

  1. 18d ago Changed · -27 lines · +30 tokens per session 439fb45f2a41
  2. 2mo ago First seen · 167 lines · 37 tokens per session scan A 886da4eb7a87

Subscribe to this mod's changes

qemu-build is a skill published in the GitHub repository processmission/oh-my-qemu (61 stars, last pushed 17d ago), licensed MIT. It adds 67 tokens to every session and 1,584 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-08-30.

DebuggingDevOps and cloud
Related

qemu-build compared with skills from other repositories

qemu-build next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
qemu-buildprocessmission/oh-my-qemuSkill6117d agoMITA67Codex
systematic-debuggingopen-metadata/OpenMetadataSkill16kyesterdayApache-2.0A37Claude Code
log-error-digestzebbern/claude-code-guideSkill4.7k3d agoMITA71Claude Code, Codex
cwv-optimizeradobe/skillsSkill319yesterdayApache-2.0A112Claude Code
ci-fixersipyourdrink-ltd/bernsteinSkill1.2kyesterdayApache-2.0A15Claude Code, Codex
incident-response-incident-responsermyndharis/antigravity-skillsSkill1.9k23d agoMITA36Claude Code
triaging-web-analytics-supportPostHog/posthogSkill41kyesterdaynoneA151Claude Code, Codex