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/thearcforge/uniclaude/prefab-architecturenpx skills add TheArcForge/UniClaude --skill prefab-architecturegit clone --depth 1 https://github.com/TheArcForge/UniClaudeWrote 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/thearcforge/uniclaude/prefab-architecture)<a href="https://agentmods.dev/skills/thearcforge/uniclaude/prefab-architecture"><img src="https://agentmods.dev/badge/skills/thearcforge/uniclaude/prefab-architecture.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00033 | $0.00837 |
| Opus 5 | $0.00016 | $0.00418 |
| Sonnet 5 | $0.00007 | $0.00167 |
| Haiku 4.5 | $0.00003 | $0.00084 |
Grade A, and why
prefab-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 6d 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 — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Prefab Architecture — Full Decision Framework
Use this when unity-architect's condensed prefab section needs more depth.
DECISION: Prefab vs Variant vs ScriptableObject Config
When this applies: Creating a family of related objects (weapons, enemies, pickups, vehicles).
Options:
-
Separate prefabs — each variant is an independent prefab asset.
- Use when: variants differ in structure (different components, different child hierarchies).
- Use when: fewer than 5 variants total.
- Tradeoff: changes to shared structure must be replicated manually across all.
-
Prefab variants — base prefab + variants that override specific values.
- Use when: variants share structure but differ in property values or additive children.
- Use when: 3-15 variants needed.
- Tradeoff: cannot remove components/children from base — only add or override.
- Tradeoff: variant chains deeper than 2 levels are fragile (override conflicts).
-
ScriptableObject config + single prefab — one prefab, multiple SO data assets.
- Use when: variants are data-only (different stats, sprites, names, costs).
- Use when: 10+ variants needed (scalable).
- Tradeoff: less editor preview (need to play to see configured variant).
- Tradeoff: requires a "configurator" script on the prefab that reads the SO.
Decision tree:
Do variants differ in components or children?
├── YES → Separate prefabs (or variant if additive only)
└── NO → Data-only differences?
├── YES → How many variants?
│ ├── < 10 → Prefab variants (visual editor preview)
│ └── >= 10 → ScriptableObject config (scalable)
└── MIXED → Base prefab variant + SO for data portions
Questions to ask the user:
- How many variants will exist now? In 6 months?
- Do designers need drag-and-drop visual preview per variant?
- Will new variants be added by non-programmers?
DECISION: Nested Prefab Structure
When this applies: A prefab has children that are themselves reusable.
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.
- 6d ago First seen · 82 lines · 33 tokens per session scan A fbee740de915
prefab-architecture is a skill published in the GitHub repository TheArcForge/UniClaude (51 stars, last pushed 3mo ago), licensed MIT. It adds 33 tokens to every session and 837 once invoked, about $0.0002 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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