bklit-ui: Skill for Claude Code

.agents/skills/bklit-studio/SKILL.md

bklit-studio is a skill for Claude Code, Codex from bklit/bklit-ui. It costs 47 tokens per session (1,238 once invoked), scanned A, original, MIT.

A chart-building workflow for contributors to a monorepo, which is a repository containing several related projects or packages. It uses a shared Studio editor to create and adjust charts.

In plain words
What is it for?
Use it to build or edit charts, tune their data and appearance, adjust animation, and preview registry entries in Studio.
Why use it?
It keeps chart work in one development surface and provides a defined place for editing data, layers, styling, animation, and previews. This avoids starting chart experiments in the wrong part of the repository.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is bklit/bklit-ui's own configuration. It tells Claude Code and Codex how to work on bklit-ui itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything bklit-ui configures →

About the project

Bklit UI is an open-source collection of customizable interface components and charts for building React applications with shadcn. Developers use it to add data visualizations such as funnels, gauges, maps, financial charts, and other interactive displays. The catalogue add-ons provide workflows for using its components and chart registry.

bklit/bklit-ui · 1,611 stars · on GitHub · bklit.com

Reuse

Borrowing it

Nothing to install: this file belongs to bklit/bklit-ui. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/bklit/bklit-ui/main/.agents/skills/bklit-studio/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/bklit/bklit-ui

Made for: Claude Code, Codex.

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.

agentmods badge for bklit-studio

README.md
[![agentmods](https://agentmods.dev/badge/skills/bklit/bklit-ui/bklit-studio.svg)](https://agentmods.dev/skills/bklit/bklit-ui/bklit-studio)
Your own site
<a href="https://agentmods.dev/skills/bklit/bklit-ui/bklit-studio"><img src="https://agentmods.dev/badge/skills/bklit/bklit-ui/bklit-studio.svg" alt="Measured on agentmods" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,238 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. Third-party audits
  • Socket pass 12 Jun 2026
  • Snyk pass 12 Jun 2026
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 4 findings, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Agent Snooping · line 93
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Agent Snooping · line 106
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Agent Snooping · line 105
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Agent Snooping · line 107
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
How audits are shown
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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00047 $0.01238
Opus 5 $0.00023 $0.00619
Sonnet 5 $0.00009 $0.00248
Haiku 4.5 $0.00005 $0.00124

Measured 8d ago against content hash 38f901426ff4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

bklit-studio 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.

.agents/skills/bklit-studio/SKILL.md · 108 lines

How it starts

The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Bklit Studio Skill (chart development)

Monorepo contributors only. Use this skill automatically whenever you build, edit, or prototype a chart — before shipping via bklit-ship.

Studio at /studio is the single development surface: full editor shell, component tree, properties, motion, codegen, and registry previews. Do not scaffold apps/web/app/playground/.

When to use (auto-trigger)

  • Build, prototype, or edit a chart (new or existing)
  • Tune props, layers, data, styling, or animation
  • Mentions Studio, /studio, registry preview, or chart controls
  • Work continues from a prior playground task → use Studio instead

Quick start

pnpm dev   # repo root

Open http://localhost:3000/studio (optional query: ?chart=line-chart).

Task URL
Edit existing chart /studio?chart=<slug> — slugs in packages/studio/src/chart-slugs.ts
Profit/loss line mode /studio?chart=line-chart&lineChartMode=profitLoss

Editor layout

Region Purpose
Left Chart type (in full Studio), layer list, data controls, animation
Center Canvas, rulers, resizable frame, replay/scramble
Right Properties for the selected layer

Pane rules: animation → left (motionPanel on chart config); per-layer props → right; visibility → eye icon on layer (uses hiddenComponents in URL state).

Where to implement (existing charts)

Edit the chart in packages/studio and packages/ui — not apps/web/components/playground/.

Concern Path
Chart preview + codegen packages/studio/src/lib/registry.tsx (render, generateCode)
Layer tree (components panel) packages/studio/src/lib/studio-components.ts (resolve*Components)
Control groups (properties) packages/studio/src/lib/registry-control-groups.ts
URL / default state packages/studio/src/lib/studio-parsers.ts
Chart UI packages/ui/src/charts/
Slugs packages/studio/src/chart-slugs.ts + studioRegistry in registry.tsx
Studio-only previews packages/studio/src/components/charts/*-studio-preview.tsx

Read the full file on GitHub · 108 lines

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.

  1. 8d ago First seen · 108 lines · 47 tokens per session scan A 38f901426ff4

Subscribe to this mod's changes

bklit-studio is a skill published in the GitHub repository bklit/bklit-ui (1,611 stars, last pushed 1mo ago), licensed MIT. It adds 47 tokens to every session and 1,238 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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