Borrowing it
Nothing to install: this file belongs to chav0/UnityFigmaMCP. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/chav0/UnityFigmaMCP/main/.claude/skills/build-prefab/SKILL.mdgit clone --depth 1 https://github.com/chav0/UnityFigmaMCPWrote 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/chav0/unityfigmamcp/build-prefab)<a href="https://agentmods.dev/skills/chav0/unityfigmamcp/build-prefab"><img src="https://agentmods.dev/badge/skills/chav0/unityfigmamcp/build-prefab/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/chav0/unityfigmamcp/build-prefab"><img src="https://agentmods.dev/badge/skills/chav0/unityfigmamcp/build-prefab.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00105 | $0.01733 |
| Opus 5.5 | $0.00042 | $0.00693 |
| Sonnet 5.5 | $0.00021 | $0.00347 |
| Haiku 4.5 | $0.00011 | $0.00173 |
Grade A, and why
build-prefab 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 24d 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 — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Build Prefab — Figma to Unity
This skill walks through building a Unity UI prefab from a Figma node. It's an interactive workflow: you show the user what they're about to build, let them choose how, run the build, and report what happened — including what sprites are missing so they can deal with those separately.
Input
The user needs to provide:
- Figma file key — the key from the Figma URL (
figma.com/file/<key>/...) - Node ID — the specific frame or component to build (
123:456) - Prefab name — what to call the resulting prefab
Optional:
- Save path — where to save (defaults to the project's prefab folder from settings)
- Pipeline ID — which pipeline to use (defaults to first available)
If the user gives a Figma URL, extract the file key and node ID from it.
Workflow
Step 1 — Fetch the Figma node
Call figma_get_node(fileKey, nodeId). This downloads the full node tree and saves it
locally for the build pipeline to use. Wait for it to finish before Step 2:
figma_get_node_names reads that saved copy and fails if it is not there yet.
Step 2 — Show preview
Once Step 1 has finished, do these two calls in parallel:
figma_export_image(fileKey, nodeIds: [nodeId], scale: 1)—nodeIdsis an array even for one node. Show the image to the user.figma_get_node_names(fileKey, nodeId, depth: 3)— the slim hierarchy, three levels deep.
Display the hierarchy to the user. The user needs to see what they're about to build — the structure might be more complex than expected, or it might be the wrong node.
Step 3 — Rename objects in Figma
If the root node is NOT a component (i.e. it's a plain FRAME), review the hierarchy
from Step 2. Nodes cut off at depth 3 show childCount instead of children — call
figma_get_node_names(fileKey, <their id>, depth: 3) to look further down. Identify nodes
with generic auto-generated Figma names like "Frame 32",
"Group 5", "Rectangle 1", "Vector", etc. Rename them directly in the Figma file
using the Figma MCP before building — the prefab will inherit the correct names.
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.
- 24d ago Changed · +3 lines 8c18061eae61
- 1mo ago Changed · +4 lines 68c348be540a
- 2mo ago First seen · 159 lines · 105 tokens per session scan A 924a9a8bdce2
build-prefab is a skill published in the GitHub repository chav0/UnityFigmaMCP (11 stars, last pushed 25d ago), licensed MIT. It adds 105 tokens to every session and 1,733 once invoked, about $0.0004 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 2026-08-31.
build-prefab compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| build-prefabchav0/UnityFigmaMCP | Skill | 11 | 25d ago | MIT | A | 105 | Claude Code |
| figma-codegenawdr74100/figwright | Skill | 1.3k | yesterday | MIT | A | 145 | Claude Code, Codex |
| figma-buildawdr74100/figwright | Skill | 1.3k | yesterday | MIT | A | 180 | Claude Code, Codex |
| biome-creationmoorestech/moorestech | Skill | 85 | today | Apache-2.0 | A | 170 | Claude Code |
| before-after-auditmoorestech/moorestech | Skill | 85 | today | Apache-2.0 | A | 81 | Claude Code |
| vibefigmavibeflowing-inc/vibe_figma | Skill | 849 | 28d ago | AGPL-3.0 | A | 77 | Claude Code, Codex |
| design-pipelinesodam-ai/SoDam-Design-Kit | Skill | 7 | 4d ago | Apache-2.0 | A | 77 | Claude Code |