macos-reverse SKILL.md skillA
macos-reverse from novaestellar/novahaku is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add novaestellar/novahaku/macos-reverse@git:20260924.a8d2b81Pins git:20260924.a8d2b81 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- novaestellar/novahaku
- Path
testing/macos-reverse/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260924.a8d2b81, committed Sep 24, 2026
- Size
- 2,348 bytes
- Repository stars
- 28
- License
- MIT
Use for authorized macOS reverse engineering: Mach-O binaries, code signing, Objective-C/Swift, XPC services, and notarization analysis.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# macOS Reverse Engineering ## ACTION REQUIRED 1. Identify the binary form: Mach-O vs FAT/universal, 32/64-bit. 2. Confirm which architecture slice you are analysing before any offset work. 3. Read `references/macho-format.md` for header/load-command layout. ## When to use - Mach-O binary analysis (`.dylib`, `.app` bundles, kexts) - Code signature / entitlement inspection - Objective-C or Swift symbol recovery - XPC service surface mapping - Notarization and hardened-runtime checks ## Core tooling | Task | Tool | |---|---| | File type / arch | `file`, `lipo -info`, `otool -h` | | Load commands | `otool -l`, `otool -L` | | Symbols | `nm -a`, `dyld_info -exports` | | ObjC headers | `class-dump`, `otool -ov` | | Signature | `codesign -dv --verbose=4`, `codesign -d --entitlements :-` | | Disassembly | Ghidra, Hopper, `objdump -d --macho` | | Dynamic | `lldb`, `dtrace`, Frida | ## Workflow ```bash # 1. Classify file ./target && lipo -info ./target # 2. Load commands + linked libraries otool -l ./target | grep -A4 LC_CODE_SIGNATURE otool -L ./target # 3. Entitlements (often the real attack surface) codesign -d --entitlements :- ./target 2>/dev/null # 4. Signature validity …
Read the whole file at its exact version.
How to install
mdr add novaestellar/novahaku/macos-reverse@sha256:1b6b02af5dc6a573The line at the top of this page pins the label git:20260924.a8d2b81, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_elqrh4frdym2qa27)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 24, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2348 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
novaestellar/novahaku · 28 stars · license MIT · pushed 2026-09-28 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_elqrh4frdym2qa27 GET https://markdownregistry.com/api/v1/resolve?ref=novaestellar/novahaku/macos-reverse GET https://markdownregistry.com/api/v1/blob/1b6b02af5dc6a573761fcd43aa84ab9fe8114a5ac2d265329fabee9958a4a08c
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.