macos-security-bypass

macos-security-bypass is a skill for Claude Code, Codex from JustineDevs/premortem. It costs 49 tokens per session (3,369 once invoked), scanned A, a copy of macos-security-bypass, Apache-2.0.

A guide to bypassing macOS protections that control access to sensitive data, applications, and system features. It covers TCC, Gatekeeper, SIP, sandbox escapes, and entitlement abuse.

In plain words
What is it for?
Use it for macOS security assessments involving permissions, application launch checks, system-integrity protections, and sandbox boundaries.
Why use it?
It helps authorized security testers understand how macOS defenses can be bypassed and how those protections interact.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument; installed under .agents/ (shared by several agents).

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/target/Library/Mail/V9/MailData/Envelope.

Good fit Use it for macOS security assessments involving permissions, application launch checks, system-integrity protections, and sandbox boundaries.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

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 macos-security-bypass

README.md
[![agentmods](https://agentmods.dev/badge/skills/justinedevs/premortem/macos-security-bypass.svg)](https://agentmods.dev/skills/justinedevs/premortem/macos-security-bypass)
Your own site
<a href="https://agentmods.dev/skills/justinedevs/premortem/macos-security-bypass"><img src="https://agentmods.dev/badge/skills/justinedevs/premortem/macos-security-bypass.svg" alt="Measured on agentmods" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,369 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 $0.00049 $0.03369
Opus 5 $0.00024 $0.01684
Sonnet 5 $0.00010 $0.00674
Haiku 4.5 $0.00005 $0.00337

Measured 5d ago against content hash 28b2f8334fd7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

macos-security-bypass 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 5d 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 macos-security-bypass — 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.

.agents/skills/macos-security-bypass/SKILL.md · 338 lines

How it starts

The opening of the file, as written. The whole thing — 338 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SKILL: macOS Security Bypass — Expert Attack Playbook

AI LOAD INSTRUCTION: Expert macOS security bypass techniques. Covers TCC bypass, Gatekeeper evasion, SIP restrictions, sandbox escape, and entitlement abuse. Base models miss version-specific bypass nuances and protection interaction effects.

Before going deep, consider loading:

Advanced Reference

Also load TCC_BYPASS_MATRIX.md when you need:

  • Per-macOS-version TCC bypass mapping
  • Protection-type-specific techniques (Camera, Microphone, FDA, Automation)
  • MDM/configuration profile abuse patterns

TCC is macOS's permission framework controlling access to sensitive resources (camera, microphone, contacts, full disk access, etc.).

1.1 TCC Database Locations

Database Path Controls Protection
User-level ~/Library/Application Support/com.apple.TCC/TCC.db Per-user consent decisions SIP-protected since Catalina
System-level /Library/Application Support/com.apple.TCC/TCC.db System-wide consent decisions SIP-protected
MDM-managed Via configuration profiles Push PPPC (Privacy Preferences Policy Control) Device management
-- Query TCC database (requires FDA or SIP off)
sqlite3 ~/Library/Application\ Support/com.apple.TCC/TCC.db \
  "SELECT service, client, allowed FROM access;"

1.2 TCC Bypass Categories

Category Mechanism Typical Prerequisite
FDA app exploitation Piggyback on apps already granted Full Disk Access Write access to FDA app's bundle or plugin dir
Direct DB modification Edit TCC.db to grant consent SIP disabled or FDA
Inherited permissions Child process inherits parent's TCC grants Code execution in context of FDA-granted app
Automation abuse Apple Events / osascript to control TCC-granted app Automation permission (lower bar than direct TCC)
Mounting tricks Mount a crafted disk image containing modified TCC.db Local access, pre-Ventura
SQL injection in TCC Malformed bundle IDs triggering SQL injection in TCC subsystem CVE-2023-32364 and similar

Read the full file on GitHub · 338 lines

Files

What ships with it

1 file 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. 5d ago First seen · 338 lines · 49 tokens per session scan A 28b2f8334fd7

Subscribe to this mod's changes

macos-security-bypass is a skill published in the GitHub repository JustineDevs/premortem (2 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 49 tokens to every session and 3,369 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to macos-security-bypass, differing in 0 lines, and is treated as a copy.

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