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/besty0728/unity-skills/netcodenpx skills add Besty0728/Unity-Skills --skill netcodegit clone --depth 1 https://github.com/Besty0728/Unity-SkillsWhat 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 | $0.00019 | $0.03474 |
| Opus 5 | $0.00010 | $0.01737 |
| Sonnet 5 | $0.00004 | $0.00695 |
| Haiku 4.5 | $0.00002 | $0.00347 |
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 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.
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.
- yesterday First seen · 201 lines · 19 tokens per session scan A 41bfeb4114fb
unity-netcode is a skill published in the GitHub repository Besty0728/Unity-Skills (1,690 stars, last pushed 2d ago), licensed MIT. It adds 19 tokens to every session and 3,474 once invoked, about $0.0001 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.
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