---

Runtime RTL for Claude Desktop + Codex on macOS.
Official apps. Signatures intact. No copy, no patch, no re-sign.

עברית · Codex guide · OSS application · Ownership

---

Status

App	Signature	Method	Status
Claude Desktop macOS	Anthropic Q6L2SF6YDW	Transient Developer-debugger runtime inject	✅ Supported
Codex Desktop macOS	OpenAI 2DC432GLL2	Opt‑in relaunch + CDP runtime inject	✅ Supported
Hermes Desktop macOS	ad‑hoc	One‑command relaunch + CDP runtime inject	✅ Supported

Quick start

git clone https://github.com/Menachem138/rtl-forge.git
cd rtl-forge
npm test
npm run build

Claude

npm run official:launch
npm run official:watch   # auto‑re‑apply after relaunch / update

Grant Accessibility once: System Settings → Privacy & Security → Accessibility.

Codex

npm run codex:apply

Relauches Codex with a local debug port for this session. Signature stays OpenAI's.

How it works

1. Verify the target app is signed by its official Team ID
2. Open a temporary local debug connection (Claude → built‑in inspector · Codex → Chromium CDP)
3. Inject payload-v2 — a layout‑only RTL engine
4. Close the connection (Claude) or leave the port local (Codex)

payload‑v2

Principle	What it means
CSS unicode‑bidi: plaintext	Primary prose direction — each block self‑determines
Selective dir	Tables / lists / blockquotes only
No text‑node mutation	Copy‑paste & Ctrl‑F return byte‑for‑byte truth
No U+200E / U+200F	Zero bidi control‑character injection
Composers + xterm safe	Hard no‑touch for ProseMirror editors & Claude Code terminals

Contract: payload‑v2/CONTRACT.md

Security model

• Verify Team ID before injection
• Loop‑back only (127.0.0.1)
• No chat‑content exfiltration
• No permanent persistence on disk
• Inspector closed immediately after Claude inject; Codex debug port stays local for the session

→ SECURITY.md · docs/IP_AND_PROTECTION.md

Project layout

assets/             banner + logo + social preview
official‑runtime/   macOS launchers, ensure, watchdog, generic Electron CDP injector
payload‑v2/         original layout‑only RTL engine
manager/            menu‑bar helpers + adapter inventory
docs/               guides, IP notes, OSS draft

Development

npm test
npm run build
npm run official:ensure     # Claude force re‑apply
npm run codex:apply         # Codex relaunch + inject

Claude for Open Source

This project was submitted for the Claude for Open Source program. See the application draft.

License

MIT © Menachem Samama — LICENSE · NOTICE