Unity-MCP connects AI coding agents to the Unity game engine through MCP, letting them work with the Unity Editor and running games. It is used by game developers to generate code, automate development and testing, debug projects, and add AI-driven behavior to games. The catalogue entries provide skills, instructions, an MCP integration, and settings for operating this workflow.
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 skills add IvanMurzak/Unity-MCP --skill package-listgit clone --depth 1 https://github.com/IvanMurzak/Unity-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/skills/ivanmurzak/unity-mcp/package-list)<a href="https://agentmods.dev/skills/ivanmurzak/unity-mcp/package-list"><img src="https://agentmods.dev/badge/skills/ivanmurzak/unity-mcp/package-list/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/skills/ivanmurzak/unity-mcp/package-list"><img src="https://agentmods.dev/badge/skills/ivanmurzak/unity-mcp/package-list.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 41 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00057 | $0.01002 |
| Opus 5.5 | $0.00023 | $0.00401 |
| Sonnet 5.5 | $0.00011 | $0.00200 |
| Haiku 4.5 | $0.00006 | $0.00100 |
Grade A, and why
package-list 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.
How it starts
The opening of the file, as written. The whole thing — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Package Manager / List Installed
List all packages installed in the Unity project (UPM packages). Returns information about each installed package including name, version, source, and description. Use this to check which packages are currently installed before adding or removing packages.
Inputs
sourceFilter(defaultAll) — restrict by UnityPackageSource:All,Registry,Embedded,Local,Git,BuiltIn,LocalTarball.nameFilter(optional) — case-insensitive substring filter over name / displayName / description. Results are prioritized: exact name → exact displayName → name substring → displayName substring → description substring.directDependenciesOnly(defaultfalse) — when true, return only packages listed inmanifest.json(no transitive dependencies).
How to Call
unity-mcp-cli run-tool package-list --input '{
"sourceFilter": "string_value",
"nameFilter": "string_value",
"directDependenciesOnly": false
}'
For complex input (multi-line strings, code), save the JSON to a file and use:
unity-mcp-cli run-tool package-list --input-file args.jsonOr pipe via stdin (recommended):
unity-mcp-cli run-tool package-list --input-file - <<'EOF' {"param": "value"} EOF
Troubleshooting
If unity-mcp-cli is not found, either install it globally (npm install -g unity-mcp-cli) or use npx unity-mcp-cli instead.
Read the /unity-initial-setup skill for detailed installation instructions.
Input
| Name | Type | Required | Description |
|---|---|---|---|
sourceFilter |
string |
No | Filter packages by source. |
nameFilter |
string |
No | Filter packages by name, display name, or description (case-insensitive). Results are prioritized: exact name match, exact display name match, name substring, display name substring, description substring. |
directDependenciesOnly |
boolean |
No | Include only direct dependencies (packages in manifest.json). If false, includes all resolved packages. Default: false |
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.
- 8d ago Changed · +2 lines 9efd251b8e15
- 1mo ago First seen · 137 lines · 57 tokens per session scan A ce9cd84bbaa5
package-list is a skill published in the GitHub repository IvanMurzak/Unity-MCP (4,521 stars, last pushed today), licensed Apache-2.0. It adds 57 tokens to every session and 1,002 once invoked, about $0.0002 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 skills, from other repositories
unity-addressables
Use Addressables with explicit grouping, loading, update, and fallback rules instead of ad hoc content loading.
unity-build-release
Run Unity builds, CI, and release packaging with reproducible configuration and platform-aware checks.
unity-csharp-standards
Apply Unity-specific C# standards that preserve readability, testability, and safe engine integration.
unity-editor-tooling
Create Unity editor tools that make content production safer, faster, and less dependent on tribal knowledge.
unity-gameplay-patterns
Use common Unity gameplay architecture patterns without hiding ownership inside scenes or inspector wiring.
unity-input-system
Implement Unity input with explicit action maps, device support, and UI/gameplay separation.