UnrealEngine_Bridge: Instructions file for Claude Code

CLAUDE.md

UnrealEngine_Bridge CLAUDE.md is an instructions file for Claude Code from JosephOIbrahim/UnrealEngine_Bridge. It costs 1,738 tokens per session, scanned A, original, MIT.

Project instructions for an AI bridge that connects Claude Code to Unreal Engine 5.7, a tool for building and editing 3D scenes and games.

In plain words
What is it for?
Opening the Unreal project, starting the Python or MCP bridge, installing development dependencies, and running the bridge tests.
Why use it?
It gives the coding agent the project context, commands, bridge modes, and test steps needed to work with the Unreal Engine project.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code.

This is JosephOIbrahim/UnrealEngine_Bridge's own configuration. It tells Claude Code how to work on UnrealEngine_Bridge itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything UnrealEngine_Bridge configures →

Reuse

Borrowing it

Nothing to install: this file belongs to JosephOIbrahim/UnrealEngine_Bridge. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/JosephOIbrahim/UnrealEngine_Bridge/master/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/JosephOIbrahim/UnrealEngine_Bridge

Made for: Claude Code.

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Per session 1,738 This file is loaded in full into every session.
When invoked 1,738 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found 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 $0.01738 $0.01738
Opus 5 $0.00869 $0.00869
Sonnet 5 $0.00348 $0.00348
Haiku 4.5 $0.00174 $0.00174

Measured 8d ago against content hash 10dc29839620, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

UnrealEngine_Bridge CLAUDE.md 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 8d 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.

CLAUDE.md · 177 lines

How it starts

The opening of the file, as written. The whole thing — 177 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code when working with the UnrealEngine_Bridge project.

Project Overview

UnrealEngine_Bridge is an agentic AI bridge connecting Claude Code to Unreal Engine 5.7. It enables AI-driven workflows where Claude can perceive, reason about, and manipulate UE5 scenes through MCP tools, a file-based bridge protocol, and the Remote Control API.

Forked from TranslatorsGame/ue-bridge. The original focused on cognitive profiling game delivery; this fork focuses on expanding agentic capabilities -- making Claude a more capable, autonomous collaborator inside Unreal Engine.

Commands

# UE5 project
# Open UnrealEngine_Bridge.uproject in UE 5.7 Editor

# Python bridge
python bridge_orchestrator.py          # Start bridge (USD mode, JSON fallback)
python bridge_orchestrator.py --json   # Force JSON mode
python bridge_orchestrator.py --test   # Write test question and exit

# MCP server
pip install -e ".[dev]"               # Install with dev dependencies
python -m ue_mcp.mcp_server           # Start MCP server (stdio)

# Tests
python -m pytest tests/ -v            # All tests
python -m pytest tests/test_usd_bridge.py -v    # USD bridge tests
python -m pytest tests/test_circuit_breaker.py   # Resilience tests

Architecture

UnrealEngine_Bridge/
├── Plugins/
│   ├── UEBridge/                    # Core bridge plugin
│   │   └── Source/
│   │       ├── UEBridgeRuntime/     # Ships in builds: subsystem, types, UI, style
│   │       └── UEBridgeEditor/      # Editor-only: file watching, process mgmt
│   └── ViewportPerception/          # Viewport capture + metadata for AI perception
├── Source/
│   └── UnrealEngineBridge/          # Game module (thin relay to plugin)
│       ├── BridgeComponent.*        # Legacy BP-bindable component
│       └── UI/                      # Slate widgets (title, questions, profile)
├── ue_mcp/                          # MCP server for Claude Code
│   ├── mcp_server.py               # FastMCP entry point (stdio)
│   ├── remote_control_bridge.py     # HTTP wrapper for UE5 Remote Control API
│   ├── metrics.py                   # Telemetry + circuit breaker
│   └── tools/                       # 8 tool modules
│       ├── actors.py                # spawn, delete, list, transform, properties
│       ├── properties.py            # get/set/list UObject properties
│       ├── python_exec.py           # Execute Python in UE editor context
│       ├── assets.py                # load, list, find references
│       ├── level.py                 # level info, load level
│       ├── mograph.py               # Motion graphics / procedural modeling
│       ├── blueprints.py            # compile, get pins
│       └── perception.py            # Viewport screenshots + bridge state
├── bridge_orchestrator.py           # Python game flow orchestration
├── usd_bridge.py                    # USD/JSON file I/O, profile generation
├── remote_control_bridge.py         # Standalone RC API wrapper
└── tests/                           # pytest suite

Read the full file on GitHub · 177 lines

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 · 177 lines · 1,738 tokens per session scan A 10dc29839620

Subscribe to this mod's changes

UnrealEngine_Bridge CLAUDE.md is an instructions file published in the GitHub repository JosephOIbrahim/UnrealEngine_Bridge (2 stars, last pushed 2mo ago), licensed MIT. It adds 1,738 tokens to every session, about $0.0087 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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