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 memi-design/design-skills --skill figma-plugin-apigit clone --depth 1 https://github.com/memi-design/design-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/memi-design/design-skills/figma-plugin-api)<a href="https://agentmods.dev/skills/memi-design/design-skills/figma-plugin-api"><img src="https://agentmods.dev/badge/skills/memi-design/design-skills/figma-plugin-api.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 | $0.00046 | $0.00255 |
| Opus 5 | $0.00023 | $0.00128 |
| Sonnet 5 | $0.00009 | $0.00051 |
| Haiku 4.5 | $0.00005 | $0.00026 |
Grade A, and why
figma-plugin-api 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 8d 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.
What it actually says
Figma Plugin API Reference Router
Do not answer exact API questions from memory when current official reference material is available.
Procedure
- Identify the exact API concept, editor type, node type, and operation involved.
- Search the current official Figma Plugin API documentation and typings for the relevant symbol.
- Verify method availability, asynchronous behavior, permissions, supported editors, and documented limitations.
- Build the smallest test or read-only inspection needed before attempting a write.
- Keep writes incremental and validate the resulting file state.
- Cite the official symbol or page and access date.
- If the official reference is unavailable or ambiguous, stop before destructive writes and report the unresolved contract.
Official sources:
Return the verified API contract, minimal implementation approach, validation, and any version-sensitive uncertainty.
What ships with it
1 file 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.
- 8d ago First seen · 26 lines · 46 tokens per session scan A c81f6c4163f9
figma-plugin-api is a skill published in the GitHub repository memi-design/design-skills (7 stars, last pushed 1mo ago), licensed MIT. It adds 46 tokens to every session and 255 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 2026-08-31.
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