auditing-uefi-firmware-with-chipsec

auditing-uefi-firmware-with-chipsec is a skill for Claude Code, Codex from Youngmaidainon/Agent-Level-Up. It costs 56 tokens per session (2,186 once invoked), scanned A, a copy of auditing-uefi-firmware-with-chipsec, MIT.

A security-auditing workflow for checking UEFI firmware, the software that starts a computer before the operating system, with Intel CHIPSEC.

In plain words
What is it for?
Checking BIOS and UEFI security settings, SPI flash write protection, SMM and SMRR controls, Secure Boot variables, and possible firmware-level threats on authorized test systems.
Why use it?
It helps find firmware settings that could let attackers alter the boot process or persist below the operating system. It also highlights risky protections such as unlocked SPI flash or disabled Secure Boot safeguards.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Checking BIOS and UEFI security settings, SPI flash write protection, SMM and SMRR controls, Secure Boot variables, and possible firmware-level threats on authorized test systems.

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Install with agentmods
npx agentmods add skills/youngmaidainon/agent-level-up/auditing-uefi-firmware-with-chipsec
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 Youngmaidainon/Agent-Level-Up --skill auditing-uefi-firmware-with-chipsec
Clone the repo
git clone --depth 1 https://github.com/Youngmaidainon/Agent-Level-Up

Made for: Claude Code, 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 auditing-uefi-firmware-with-chipsec

README.md
[![agentmods](https://agentmods.dev/badge/skills/youngmaidainon/agent-level-up/auditing-uefi-firmware-with-chipsec/github.svg)](https://agentmods.dev/skills/youngmaidainon/agent-level-up/auditing-uefi-firmware-with-chipsec)
Your own site
<a href="https://agentmods.dev/skills/youngmaidainon/agent-level-up/auditing-uefi-firmware-with-chipsec"><img src="https://agentmods.dev/badge/skills/youngmaidainon/agent-level-up/auditing-uefi-firmware-with-chipsec/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 auditing-uefi-firmware-with-chipsec

Your own site · 80×15
<a href="https://agentmods.dev/skills/youngmaidainon/agent-level-up/auditing-uefi-firmware-with-chipsec"><img src="https://agentmods.dev/badge/skills/youngmaidainon/agent-level-up/auditing-uefi-firmware-with-chipsec.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,186 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00056 $0.02186
Opus 5 $0.00028 $0.01093
Sonnet 5 $0.00011 $0.00437
Haiku 4.5 $0.00006 $0.00219

Measured 8d ago against content hash 48be885889e2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

auditing-uefi-firmware-with-chipsec scanned grade A with 1 finding 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 8d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/agent.py), 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.

Asks for rootlowPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo chipsec_main --help

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

Origin

This is a copy

100% identical to auditing-uefi-firmware-with-chipsec — 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.

cyber-security/ctf/auditing-uefi-firmware-with-chipsec/SKILL.md · 210 lines

How it starts

The opening of the file, as written. The whole thing — 210 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Auditing UEFI Firmware with CHIPSEC

Authorized Use Only: CHIPSEC loads a kernel driver and reads/writes low-level hardware registers, SPI flash, and SMM. Run it only on systems you own or are explicitly authorized to assess, ideally on dedicated test hardware. Misuse (especially write/modify modules) can brick a machine. Never run write-capable modules on production systems.

Overview

CHIPSEC is the open-source Platform Security Assessment Framework created by Intel's Advanced Threat Research team. It inspects the low-level security configuration of x86 platform firmware and hardware — the layer below the operating system where bootkits and firmware implants live. CHIPSEC loads a signed kernel driver (Linux, Windows, or it can run from the UEFI shell) to read and write hardware registers, Model-Specific Registers (MSRs), PCI config space, SPI flash, and UEFI variables, then runs an automated test suite that checks whether the platform's defensive locks are actually engaged.

The threat CHIPSEC addresses is MITRE ATT&CK T1542.001 — Pre-OS Boot: System Firmware: adversaries who modify system firmware (the BIOS/UEFI image on SPI flash) to gain stealthy, persistent, OS-survivable control. Firmware implants persist across OS reinstall and disk replacement and are invisible to most EDR. CHIPSEC's value is verifying the prerequisites that prevent such implants: that the SPI flash BIOS region is write-protected (BIOS_CNTL BLE/SMM_BWP, SPI Protected Ranges), that the flash descriptor locks region access, that SMRAM/SMRR are configured, and that Secure Boot variables are protected. It also dumps the SPI flash for offline forensic comparison.

Sources: Intel/CHIPSEC project (https://github.com/chipsec/chipsec), CHIPSEC documentation (https://chipsec.github.io/).

When to Use

  • Baseline firmware-security assessment of a new laptop/server platform or fleet image
  • Verifying that BIOS write protection and SPI flash locks are correctly enabled by the OEM
  • Firmware forensics: dumping SPI flash to compare against a known-good image
  • Validating Secure Boot variable protection and S3 boot-script protection
  • Hunting for evidence of a firmware implant or misconfiguration enabling one

Read the full file on GitHub · 210 lines

Files

What ships with it

3 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. 8d ago First seen · 210 lines · 56 tokens per session scan A 48be885889e2

Subscribe to this mod's changes

auditing-uefi-firmware-with-chipsec is a skill published in the GitHub repository Youngmaidainon/Agent-Level-Up (3 stars, last pushed 17d ago), licensed MIT. It adds 56 tokens to every session and 2,186 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (asks for root). It is 100% identical to auditing-uefi-firmware-with-chipsec, differing in 0 lines, and is treated as a copy.

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