Borrowing it
Nothing to install: this file belongs to ChiR24/Unreal_mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/ChiR24/Unreal_mcp/dev/AGENTS.mdgit clone --depth 1 https://github.com/ChiR24/Unreal_mcpWrote 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.
[](https://agentmods.dev/instructions/chir24/unreal_mcp/agents-md)<a href="https://agentmods.dev/instructions/chir24/unreal_mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/chir24/unreal_mcp/agents-md/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.
<a href="https://agentmods.dev/instructions/chir24/unreal_mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/chir24/unreal_mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.04860 | $0.04860 |
| Opus 5.5 | $0.01944 | $0.01944 |
| Sonnet 5.5 | $0.00972 | $0.00972 |
| Haiku 4.5 | $0.00486 | $0.00486 |
Grade A, and why
Unreal_mcp AGENTS.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 today.
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.
How it starts
The opening of the file, as written. The whole thing — 174 lines — stays where its author put it; the contents beside it link to each section on GitHub.
PROJECT KNOWLEDGE BASE
MCP tooling for Unreal Engine 5.0-5.8. Server package version 0.6.0-beta-f; bridge plugin version 0.6.0-beta-f (separate .uplugin). The plugin does all the work and serves MCP itself at /mcp; the npm package is a stdio proxy in front of it, plus the capability records every contract is generated from.
Area-specific guidance lives in nested AGENTS.md files (see AREA GUIDES below). This root file is the workspace-wide view; do not duplicate their detail here.
STRUCTURE
./
|-- src/ # NodeNext ESM (strict): the stdio proxy + the contract records
| |-- cli.ts constants.ts # bin entry -> proxy/
| |-- proxy/ (1) # stdio in front of the plugin's native /mcp (the whole runtime)
| |-- gateway/ (2) # generated gateway manifest DATA + its types
| |-- services/ (1) # telemetry schema (a generator input)
| |-- tools/ # catalog/ (records = contracts, generated/), definitions/
| `-- utils/ # commands (console policy rules), config, logging, serialization, validation
|-- plugins/EngineWire/ # the ONLY plugin; editor-only UE (bridge + native MCP + Fab adapter)
| |-- Source/EngineWire/{Public (19), Private/}
| | Private/: Core(26) Domains(1016 / 55 domains) Foundation(92) MCP(137) Safety(18) Transport(21) Tests(25) UI(2)
| `-- Source/EngineWireFab/ # Fab asset-store adapter module (delay-loaded, optional)
|-- tests/ # Vitest unit tests + custom MCP integration runner
|-- scripts/ # generators, packaging, sync
|-- docs/ # protocol, security, testing, gateway client guide, generated action reference
`-- .github/workflows/ # pinned CI, release, bump-version
There is no TypeScript gateway or action layer: search, describe, execute and configure run in the plugin, and the proxy only relays JSON-RPC. The TypeScript records are build-time input: they generate the plugin's MCP/Generated/ shards and the gateway manifest.
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.
- today Changed · -24 lines · -750 tokens per session 234444e04d37
- 6d ago Changed · +30 tokens per session bd25bb80d5ea
- 9d ago Changed 66e64eb123d2
- 12d ago Changed · -9 tokens per session 36e715b8b55a
- 16d ago Changed 12e96a6f01dc
- 22d ago Changed 7ac0a1aa6555
- 23d ago Changed · +2 lines · +80 tokens per session cf35ec3547a3
- 24d ago Changed 4a6d51e94f70
- 25d ago Changed · +37 tokens per session 9f2dc6050c96
- 26d ago First seen · 196 lines · 5,472 tokens per session scan A ac57ea6732bc
Unreal_mcp AGENTS.md is an instructions file published in the GitHub repository ChiR24/Unreal_mcp (978 stars, last pushed today), licensed MIT. It adds 4,860 tokens to every session, about $0.0194 per session on Opus 5.5. 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 2026-08-30.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.