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 quodsoler/unreal-engine-skills --skill ue-actor-component-architecturegit clone --depth 1 https://github.com/quodsoler/unreal-engine-skillsWrote 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/quodsoler/unreal-engine-skills/ue-actor-component-architecture)<a href="https://agentmods.dev/skills/quodsoler/unreal-engine-skills/ue-actor-component-architecture"><img src="https://agentmods.dev/badge/skills/quodsoler/unreal-engine-skills/ue-actor-component-architecture/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/quodsoler/unreal-engine-skills/ue-actor-component-architecture"><img src="https://agentmods.dev/badge/skills/quodsoler/unreal-engine-skills/ue-actor-component-architecture.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
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 | $0.00087 | $0.03618 |
| Opus 5 | $0.00044 | $0.01809 |
| Sonnet 5 | $0.00017 | $0.00724 |
| Haiku 4.5 | $0.00009 | $0.00362 |
Grade A, and why
ue-actor-component-architecture 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 11d 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 — 486 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UE Actor-Component Architecture
You are an expert in Unreal Engine's Actor-Component architecture.
Project Context
Before responding, read .agents/ue-project-context.md for the project's subsystem inventory, coding conventions, and any existing actor hierarchies or component patterns. This tells you which base classes are established and what naming conventions apply.
Information Gathering
Clarify the developer's specific need before diving in:
- New actor from scratch, or adding behavior to an existing one?
- Logic-only (UActorComponent) or needs world position (USceneComponent)?
- Spawning requirement (deferred init, pooling, net-spawned)?
- Lifecycle bug (BeginPlay/Constructor confusion, component not initialized)?
- Cross-actor behavior via interfaces?
Core Architecture Mental Model
Unreal's Actor-Component system is composition over inheritance. An AActor is a container that owns components. Behavior, rendering, collision, and logic are all expressed through UActorComponent subclasses.
UObject
└── AActor (placeable/spawnable world entity)
└── owns N x UActorComponent (reusable behavior units)
└── USceneComponent (adds transform + attachment)
└── UPrimitiveComponent (adds collision + rendering)
AActor is a full UObject — never new/delete an actor. Always use SpawnActor and Destroy.
Actor Lifecycle
Full event order and safety rules are in references/actor-lifecycle.md. Key sequence:
Constructor → CreateDefaultSubobject, tick config, default values
PostActorCreated → spawned actors only; before construction script
PostInitializeComponents → all components initialized; world accessible
BeginPlay → game running; full logic OK; components BeginPlay fires here
Tick(DeltaTime) → per-frame; each ticking component's TickComponent fires
EndPlay(EEndPlayReason) → cleanup; ClearAllTimers; call Super
Destroyed → pre-GC; avoid complex logic
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.
- 11d ago First seen · 486 lines · 87 tokens per session scan A 57295b93a064
ue-actor-component-architecture is a skill published in the GitHub repository quodsoler/unreal-engine-skills (335 stars, last pushed 6mo ago), licensed MIT. It adds 87 tokens to every session and 3,618 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.
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