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 commands/agentsorg/design-engineering/apply-design-mdgit clone --depth 1 https://github.com/AgentsORG/design-engineeringWhat 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 | $0.00036 | $0.00346 |
| Opus 5 | $0.00018 | $0.00173 |
| Sonnet 5 | $0.00007 | $0.00069 |
| Haiku 4.5 | $0.00004 | $0.00035 |
Grade A, and why
apply-design-md 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 2d 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
Apply the design contract
Spawn or emulate the design-md-consumer subagent (agents/design-md-consumer.md).
- Discover the contract, nearest wins: walk up for a
.design/*.design, resolvingextends. Then check forDESIGN.mdat the root,docs/, ordesign/. If both exist,.designis the contract and DESIGN.md is rationale. - Load
skills/design-engineering/references/meta/using-design-file.md(orusing-design-md.md) pluspov.md. - For a
.design, read the normative core before generating:agent.instructions→intent→constraints→policy/decisions→tokens→voice→components. - Output token mappings and apply them to the target UI the user specified. If
integrations.shadcn.enabled, writecss_varsinto the declared CSS file — tokens outrank stale literals. - Tokens and structured rules are normative;
rationaleand DESIGN.md prose are context.
Precedence when they disagree: user prompt → the contract → this skill → model defaults.
If no contract exists, say so and offer to bootstrap one — copy templates/design-engineering.design (this skill's canonical motion and surface defaults) or scaffold a DESIGN.md from spec/design-md-spec.md. Scan adjacent signals first; never invent an untracked system silently.
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.
- 2d ago First seen · 19 lines · 36 tokens per session scan A 671ed5895a37
apply-design-md is a command published in the GitHub repository AgentsORG/design-engineering (21 stars, last pushed 10d ago), licensed MIT. It adds 36 tokens to every session and 346 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.
Other commands, from other repositories
quieter
Tone down visual noise — lowers variance and motion, simplifies layout and color weight, keeps hierarchy clear. Use when the UI feels loud, busy, or over-designed, or when the user says "quieter", "more restrained", "simpler", or "tone it down".
gen-video
Generate video output in one of three modes: Remotion (programmatic React-based video), Gen-AI (shot prompt pack for Runway/Kling/Sora/Pika/Luma), or Remotion+Gen-AI (programmatic scaffold with AI footage embedded).
motion-design
Design micro-interactions, transitions, and animation systems for UI components or full pages.
illustration-system
Design an illustration style guide, icon system, or SVG asset set for a product or brand.
nds-build
Command "nds-build" from intellegix/intellegix-code-agent-toolkit, covering /nds-build — universal nds game builder, usage, subcommands, new — scaffold a new nds project and develop — research-driven modular game build.
motion-designer
Use when animation feels wrong. Transitions too slow or too bouncy, motion with no purpose, blanket transitions on every property, no reduced-motion support, or animation that drops frames.