Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/coplaydev/unity-mcp/unity-mcp-skillnpx skills add CoplayDev/unity-mcp --skill unity-mcp-skillgit clone --depth 1 https://github.com/CoplayDev/unity-mcpWhat 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 | $0.00072 | $0.03394 |
| Opus 5 | $0.00036 | $0.01697 |
| Sonnet 5 | $0.00014 | $0.00679 |
| Haiku 4.5 | $0.00007 | $0.00339 |
Grade A, and why
unity-mcp-orchestrator 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 yesterday.
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.
Copies of this mod
1 near-identical copy found in the catalogue:
- unity-mcp-orchestrator — 91% identical, 5 lines differ
How it starts
The opening of the file, as written. The whole thing — 282 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Unity-MCP Operator Guide
This skill helps you effectively use the Unity Editor with MCP tools and resources.
Template Notice
Examples in references/workflows.md and references/tools-reference.md are reusable templates. They may be inaccurate across Unity versions, package setups (UGUI/TMP/Input System), and project-specific conventions. Please check console, compilation errors, or use screenshot after implementation.
Before applying a template:
- Validate targets/components first via resources and
find_gameobjects. - Treat names, enum values, and property payloads as placeholders to adapt.
Quick Start: Resource-First Workflow
Always read relevant resources before using tools. This prevents errors and provides the necessary context.
1. Check editor state → mcpforunity://editor/state
2. Understand the scene → mcpforunity://scene/gameobject-api
3. Find what you need → find_gameobjects or resources
4. Take action → tools (manage_gameobject, create_script, script_apply_edits, apply_text_edits, validate_script, delete_script, get_sha, etc.)
5. Verify results → read_console, manage_camera(action="screenshot"), resources
Critical Best Practices
1. After Writing/Editing Scripts: Wait for Compilation and Check Console
# After create_script or script_apply_edits:
# Both tools already trigger AssetDatabase.ImportAsset + RequestScriptCompilation automatically.
# No need to call refresh_unity — just wait for compilation to finish, then check console.
# 1. Poll editor state until compilation completes
# Read mcpforunity://editor/state → wait until is_compiling == false
# 2. Check for compilation errors
read_console(types=["error"], count=10, include_stacktrace=True)
Why: Unity must compile scripts before they're usable. create_script and script_apply_edits already trigger import and compilation automatically — calling refresh_unity afterward is redundant.
2. Use batch_execute for Multiple Operations
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- yesterday First seen · 282 lines · 72 tokens per session scan A 45a6fd0007ee
unity-mcp-orchestrator is a skill published in the GitHub repository CoplayDev/unity-mcp (13,781 stars, last pushed 24d ago), licensed MIT. It adds 72 tokens to every session and 3,394 once invoked, about $0.0004 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 2026-08-30.
Other skills, from other repositories
assets-get-data
Get asset data from the asset file in the Unity project — every serializable field and property. Supports token-saving path-scoped reads via paths or viewQuery. Use 'assets-find' to find the asset first.
gameobject-component-destroy
Destroy one or more Components from a target GameObject. Missing (null) components are skipped — they cannot be destroyed. Use 'gameobject-find' and 'gameobject-component-get' to identify the components first.
gameobject-set-parent
Reparent a batch of GameObjects under a new parent in the currently opened Prefab or active Scene. Per-item failures are reported in the returned status string instead of aborting the batch. Use 'gameobject-find' to locate the GameObjects first.
assets-create-folder
Create a new folder under a parent folder inside 'Assets/'. The parent path must start with 'Assets/' and every intermediate folder in it must already exist. Refreshes the AssetDatabase at the end and returns the GUID(s) of the created folder(s).
console-get-logs
Retrieve Unity Editor logs from the MCP plugin's LogCollector, optionally filtered by log type or time window. Useful for debugging and monitoring Editor activity.
assets-prefab-save
Save the currently opened prefab edit stage back to its prefab asset without exiting the stage. Pair with 'assets-prefab-open' to enter the edit mode first.