A design guide and UI kit for Bobi, an open-source framework for teams of AI agents. It provides rules for colors, fonts, assets, and interface components.

It is for building branded Bobi interfaces, production screens, prototypes, mockups, and other visual materials.

It gives Bobi interfaces a consistent visual style instead of requiring each prototype or product screen to be designed from scratch.

bobi-design — Skill for Claude Code by moda-labs/bobi-agent

Install

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.

Any agent

npx skills add moda-labs/bobi-agent --skill design-system

Clone the repo

git clone --depth 1 https://github.com/moda-labs/bobi-agent

Made for: Claude Code.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/moda-labs/bobi-agent/design-system/github.svg)](https://agentmods.dev/skills/moda-labs/bobi-agent/design-system)

Your own site

<a href="https://agentmods.dev/skills/moda-labs/bobi-agent/design-system"><img src="https://agentmods.dev/badge/skills/moda-labs/bobi-agent/design-system/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/moda-labs/bobi-agent/design-system"><img src="https://agentmods.dev/badge/skills/moda-labs/bobi-agent/design-system.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,092 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00060	$0.01092
Opus 5.5	$0.00024	$0.00437
Sonnet 5.5	$0.00012	$0.00218
Haiku 4.5	$0.00006	$0.00109

Measured 2mo ago against content hash 12f4d34c17f7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

bobi-design 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 2mo ago.

The scan reads SKILL.md. This mod also ships 16 executable files (components/brand/BobiLockup.d.ts, components/brand/Constellation.d.ts, components/brand/MarkProbe.d.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

docs/design-system/SKILL.md · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Read the README.md file within this skill, and explore the other available files.

If creating visual artifacts (slides, mocks, throwaway prototypes, etc), copy assets out and create static HTML files for the user to view. If working on production code, you can copy assets and read the rules here to become an expert in designing with this brand.

If the user invokes this skill without any other guidance, ask them what they want to build or design, ask some questions, and act as an expert designer who outputs HTML artifacts or production code, depending on the need.

Fast orientation

readme.md — the design guide: sources, content fundamentals, visual foundations, iconography, and the four rules that matter most. Read this first.
styles.css — link this single file to inherit every token.
components/*/ — each has <Name>.jsx, <Name>.d.ts (props + adherence rules), <Name>.prompt.md (what/when + example).
ui_kits/control-plane/index.html — open this to see the product surface assembled.
guidelines/*.card.html — foundation specimens.

Non-negotiables

Violet (--bobi-acc) means state: live, enforced, gated, focused. Never decorative.
Human approval gates always render with the violet left rail + 4% wash + rotated-square glyph, and always name the workflow and step. Never a toast.
Show real config — filenames in FileChip, YAML in CodeCard, shell in Terminal.
The Bobi lockup always travels with the "BY MODA LABS ↗" byline.
Moda Labs' red #FD4235 never appears on a Bobi surface.
Product chrome is lowercase (page titles, tabs, nav, agent names, files); no uppercase except figure-plate headers and corner marks. Mono is for data (paths, ids, crons, code) — sans for chrome.
One easing curve: cubic-bezier(0.16, 1, 0.3, 1). All motion disables under prefers-reduced-motion.
Bobi's own hand-drawn icon set only — never Lucide, Heroicons, or emoji.

Where this lives, and how to invoke it

In the bobi-agent repo this system lives at docs/design-system/ — it is a product artifact, so it sits with the rest of the reference material rather than inside anyone's tool config. A thin entry point at .claude/skills/bobi-design/SKILL.md points here, so /bobi-design still works and Claude Code loads it when you ask for Bobi UI.

Read the full file on GitHub · 70 lines

Files

What ships with it

60 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.

Changes

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.

2mo ago First seen · 70 lines · 60 tokens per session scan A 12f4d34c17f7

Subscribe to this mod's changes

bobi-design is a skill published in the GitHub repository moda-labs/bobi-agent (10 stars, last pushed 2d ago), licensed Apache-2.0. It adds 60 tokens to every session and 1,092 once invoked, about $0.0002 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.

Design and UX

bobi-design next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
bobi-designmoda-labs/bobi-agent	Skill	10	2d ago	Apache-2.0	A	60	Claude Code
webgl-holographic-foilnexu-io/open-design	Skill	106k	yesterday	Apache-2.0	A	41	Claude Code, Codex
html-ppt-hermes-cyber-terminalnexu-io/open-design	Skill	106k	yesterday	Apache-2.0	A	53	Claude Code, Codex
html-ppt-taste-brutalistnexu-io/open-design	Skill	106k	yesterday	Apache-2.0	A	78	Claude Code, Codex
visual-ralphYeachan-Heo/oh-my-codex	Skill	34k	3d ago	MIT	A	52	Codex
glance-canonical-layoutsandroid/skills	Skill	10k	yesterday	Apache-2.0	A	56	Claude Code
accessibilitymicrosoft/hve-core	Skill	1.6k	yesterday	MIT	A	47	Claude Code