UnitySkills is a REST API-based automation engine that lets AI coding agents control Unity Editor projects, including scenes and other editor operations. It is for developers using Unity with supported coding agents and IDEs. The catalogue skills and commands provide the agent workflows used to operate Unity projects through the engine.
Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/Besty0728/Unity-Skillsnpx agentmods add skills/besty0728/unity-skills/netcodeWrote 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/besty0728/unity-skills/netcode)<a href="https://agentmods.dev/skills/besty0728/unity-skills/netcode"><img src="https://agentmods.dev/badge/skills/besty0728/unity-skills/netcode/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/besty0728/unity-skills/netcode"><img src="https://agentmods.dev/badge/skills/besty0728/unity-skills/netcode.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 Excessive Agency · line 26 Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 | $0.00019 | $0.03498 |
| Opus 5.5 | $0.00008 | $0.01399 |
| Sonnet 5.5 | $0.00004 | $0.00700 |
| Haiku 4.5 | $0.00002 | $0.00350 |
Grade A, and why
unity-netcode 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 13d 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 — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Before calling any skill in this module: if you are about to call a skill with parameters guessed from its name or description, STOP — read this file (or fetch its schema via
GET /skills/recommend?includeSchema=true) first. If you already have the parameter definitions from recommend/schema, you may proceed straight to dryRun.
Triggers
- Scaffolding multiplayer
- Registering network prefabs
- Wiring spawn logic
- Starting host/server/client
- 搭建多人联机、注册网络预制体、连接生成逻辑、启动 host/server/client
Unity Netcode for GameObjects Skills
Automation for Netcode for GameObjects (NGO) multiplayer setup and operations. Every skill is source-verified against NGO 2.x; when the package is absent, each skill returns a NoNetcode() error with install instructions. A subset of skills additionally require NGO 2.5.0+ (see NGO 2.5+ features) — on an older 2.x install they return a structured "requires 2.5.0+" error instead of a compile error, since AttachableBehaviour/AttachableNode/ComponentController are detected by reflection, not by a dedicated version symbol.
Requires:
com.unity.netcode.gameobjects(2.x), Unity 6000.0+. Strongly recommended: before calling anynetcode_*skill, load netcode-design. NGO lifecycle and permission rules are strict; skills alone cannot prevent incorrect business code.
Guardrails
Operating Mode (v1.9 three-tier):
- Approval (default): query/list/info skills (
netcode_check_setup,netcode_get_manager_info,netcode_get_transport_info,netcode_list_network_objects,netcode_get_network_object_info,netcode_list_network_prefabs,netcode_list_network_behaviours,netcode_get_spawn_manager_info,netcode_get_scene_manager_info,netcode_get_status,netcode_version,netcode_attachable_info) run directly. Mutators (create/configure/attach/add) are FullAuto — onMODE_RESTRICTED, run the grant protocol. - Auto / Bypass: SemiAuto and FullAuto run directly.
- Auto-forbidden in this module:
SkillOperation.Delete→netcode_remove_manager,netcode_remove_network_object,netcode_remove_from_prefabs_listMayTriggerReload = true→netcode_add_network_behaviour_script(writes a new.cs, forces script compile + Domain Reload)MayEnterPlayMode = true→netcode_start_host,netcode_start_server,netcode_start_client,netcode_shutdown
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.
- 13d ago Changed 767d5c40d729
- 1mo ago First seen · 201 lines · 19 tokens per session scan A 41bfeb4114fb
unity-netcode is a skill published in the GitHub repository Besty0728/Unity-Skills (1,862 stars, last pushed today), licensed MIT. It adds 19 tokens to every session and 3,498 once invoked, about $0.0001 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.
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