01 ASSET INDEX
Know what references what.
Search project content, follow dependencies, find reverse references and understand where components are actually used.
ucp --index --scope Assets Unity Control
Put Unity
on the command line.
A Unity-aware MCP bridge that lets coding agents inspect, change, compile, test and verify the real Editor — end to end.
MCP nativeAsset indexSemantic graph
$
ucp --install✓
MCP config · skills · docs installed$
ucp --index --scope Assets✓
Asset graph ready · GUID refs resolved$
ucp --graph --scope Assets --timeout 300✓
Semantic C# graph ready · Roslyn applied$
Unity connectedready
The missing interface
Unity is visual.
Your tools are not.
Unity Control gives coding agents a precise way to understand the project, operate the real Editor, and verify outcomes instead of guessing from source files alone.
Project intelligence
Index every asset.
Graph every consequence.
UCP gives coding agents a connected view of Unity content and C# behavior — enough to reason about impact without exposing the machinery behind it.
IMPACT↔
02 SEMANTIC CODE GRAPH
See what a change touches.
Trace call paths, state access, inheritance and Unity-aware relationships with semantic analysis.
ucp --graph --scope AssetsASSET IMPACTCODE PATHSUNITY-AWARE CONTEXTSEMANTIC CONFIDENCE
Built beyond scene CRUD
The workflow
others leave open.
Unity Control is built around the costly parts of agentic Unity development: focus, project locks, raw logs, runtime state and unsafe YAML edits.
Know what references what
Find asset relationships, component usage and downstream impact without asking an agent to scan the entire project.
Understand code by meaning
Trace calls, state access and inheritance with semantic confidence instead of relying only on text search.
Connect code to real content
See how a code change reaches the scenes, prefabs and assets that ship in the game.
Ask narrowly. Receive narrowly.
Targeted queries return the answer an agent needs while keeping irrelevant project data out of context.
Capability without tool sprawl
A deliberately small surface covers the development loop and preserves more context for the actual work.
Change Unity with guardrails
Editor-aware operations protect serialized content and make high-impact changes explicit.
Documented payload budget
Spend tokens
on decisions.
Not Unity YAML.
UCP replaces broad project dumps with narrow questions and compact answers.
99.2%less context for one targeted UI check
versus an unfiltered snapshot
versus an unfiltered snapshot
| Workflow | Broad output | Unity Control | Reduction |
|---|---|---|---|
| Single UI assertion | ~3,865 tok | ~30 tok | 99.2% |
| Filtered UI snapshot | ~3,865 tok | ~200 tok | 94.8% |
| Structured query output | JSON baseline | Text default | ~50% |
Payload guidance from current UCP operations. Actual usage varies by project and query. The public benchmark reports output size only; internal indexing and query strategy remain undisclosed.
Full editor access
Know the project.
Control the Editor.
Index the project
Resolve dependencies, reverse references, component usages and prefab contents from a persistent project index.
Graph the code
Trace calls, reads, writes and inheritance with Roslyn semantics plus Unity lifecycle, assembly, attribute and asset-reference metadata.
Control the Editor
Inspect, create, modify, compile, test, profile and verify Unity through a compact MCP interface.
Local by design
Simple in.
Structured out.
A focused control layer connects your development tools with the Unity Editor and returns predictable, structured results.
- ✓ Editor-aware actions
- ✓ Structured results
- ✓ Built for automation
INPUTCLI · AGENT · CI
structured commands
CONTROL UNITY CONTROL
control layer
RUNTIMEUNITY EDITOR
Install from npm
One package.
One bridge.
NPM · LATEST RELEASE
Install Unity Control
Install the latest UCP CLI globally, then let it configure the MCP client, skills and local documentation.
$
npm install -g @gmg-studio/ucp@latest01
ucp --install02Restart your MCP clientCommon questions
Unity Control,
clearly explained.
What is Unity Control?
Unity Control is an MCP bridge and command-line tool that gives coding agents a Unity-aware way to inspect projects, operate the Editor, run verification, and reason across code and assets.
How are the asset index and code graph different?
The asset index maps Unity content and references. The semantic code graph maps C# behavior and relationships. Together they help an agent understand the likely impact of a change before editing.
Does UCP replace the Unity Editor?
No. UCP connects automation and AI coding tools to the real Unity Editor. Unity remains the source of truth for serialized assets, play mode, compilation, tests, and runtime state.
Which AI coding tools can use UCP?
UCP runs as an MCP server over standard input and output, so it is designed for MCP-compatible coding clients. Install the npm package, then run ucp --install to configure the supported client environment.