competition-firmware-layout

competition-firmware-layout is a skill for Codex from Asaiuta/reverse-workbench-skill. It costs 110 tokens per session (647 once invoked), scanned A, a copy of competition-firmware-layout, MIT.

A downstream workflow for examining firmware images, the software stored inside devices. It covers how partitions, boot components, update packages, filesystems, and device trust boundaries fit together.

In plain words
What is it for?
Use it to map firmware contents, inspect bootloaders and configuration, trace update paths, and identify reachable device behavior.
Why use it?
It helps organize firmware analysis without changing the original evidence or skipping important parts of the boot and update process.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: $skill-name invocation.

Good fit Use it to map firmware contents, inspect bootloaders and configuration, trace update paths, and identify reachable device behavior.

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Install with agentmods
npx agentmods add skills/asaiuta/reverse-workbench-skill/competition-firmware-layout
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 Asaiuta/reverse-workbench-skill --skill competition-firmware-layout
Clone the repo
git clone --depth 1 https://github.com/Asaiuta/reverse-workbench-skill

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 competition-firmware-layout

README.md
[![agentmods](https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/competition-firmware-layout/github.svg)](https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/competition-firmware-layout)
Your own site
<a href="https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/competition-firmware-layout"><img src="https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/competition-firmware-layout/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 competition-firmware-layout

Your own site · 80×15
<a href="https://agentmods.dev/skills/asaiuta/reverse-workbench-skill/competition-firmware-layout"><img src="https://agentmods.dev/badge/skills/asaiuta/reverse-workbench-skill/competition-firmware-layout.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 110 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 647 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 100% copy Near-identical to another mod 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 $0.00110 $0.00647
Opus 5 $0.00055 $0.00324
Sonnet 5 $0.00022 $0.00129
Haiku 4.5 $0.00011 $0.00065

Measured 9d ago against content hash 32e17b49d0f3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

competition-firmware-layout 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 9d 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.

Origin

This is a copy

100% identical to competition-firmware-layout — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

CTF-Sandbox-Orchestrator/competition-firmware-layout/SKILL.md · 51 lines

How it starts

The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Competition Firmware Layout

Use this skill only as a downstream specialization after $ctf-sandbox-orchestrator is already active and has established sandbox assumptions, node ownership, and evidence priorities. If that has not happened yet, return to $ctf-sandbox-orchestrator first.

Use this skill when the hard part is understanding how a firmware image is structured, booted, updated, and turned into reachable device behavior.

Reply in Simplified Chinese unless the user explicitly requests English.

Quick Start

  1. Preserve the original image, extracted partitions, unpacked filesystems, and patched copies as separate artifacts.
  2. Map outer container, partition table, bootloader, kernel, rootfs, config, and update metadata before editing anything.
  3. Track the boot or update chain in order instead of jumping straight to the most interesting file.
  4. Record keys, signatures, offsets, partition boundaries, and init entrypoints in one compact evidence chain.
  5. Reproduce the decisive secret, branch, or reachable service from the smallest extracted path.

Workflow

1. Establish Image Layout

  • Identify container type, partition headers, compression, filesystem type, and any appended or nested images.
  • Record offsets, sizes, hashes, mount points, and partition names before extraction mutates anything.
  • Separate bootloader, kernel, initramfs, rootfs, config blobs, and update metadata as different layers.

2. Trace Boot Or Update Flow

  • Map how control moves from bootloader to kernel to init to services, or from update package to verifier to installer.
  • Note which credentials, certificates, passwords, seeds, or config files are consumed at each stage.
  • Distinguish checked-in firmware intent from the live behavior the extracted files actually support.

3. Reduce To The Decisive Path

  • Show the smallest chain from image boundary to service exposure, auth bypass, debug interface, credential recovery, or flag artifact.
  • Keep extracted filesystems, derived configs, and patch experiments separate from pristine inputs.
  • If the challenge becomes mostly about native crash behavior or exploit primitives after extraction, switch back to the broader reverse skill.

Read the full file on GitHub · 51 lines

Files

What ships with it

2 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. 9d ago First seen · 51 lines · 110 tokens per session scan A 32e17b49d0f3

Subscribe to this mod's changes

competition-firmware-layout is a skill published in the GitHub repository Asaiuta/reverse-workbench-skill (2 stars, last pushed 25d ago), licensed MIT. It adds 110 tokens to every session and 647 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to competition-firmware-layout, differing in 0 lines, and is treated as a copy.

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