Agent skill

Rechart

by Asymmetric-al in Asymmetric-al/core

Build responsive, readable charts with Recharts using correct data mapping and composition.

AGPL-3.0Auto-check passed

Install Rechart

skills CLI
$ npx skills add Asymmetric-al/core --skill rechart -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Asymmetric-al/core rechart --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Asymmetric-al/core.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/rechart .claude/skills/rechart && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
rechart
GitHub stars
381
Token cost
~826 tokens
SKILL.md length
203 words
Files
1
Skills in repo
43
Repo updated
First seen
Licence
AGPL-3.0

At a glance

Build responsive, readable charts with Recharts using correct data mapping and composition.

  • Works in 5 steps: Define the data shape and stable keys. → Choose the simplest chart that answers… → Wrap in ResponsiveContainer with a height. → …
  • Creating charts with Recharts — LineChart
  • SKILL.md covers Rules, Workflow, Checklists and Minimal examples, plus 1 more section
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Rechart is an agent skill from Asymmetric-al/core. Build responsive, readable charts with Recharts using correct data mapping and composition. Use whenever creating charts with Recharts — LineChart, BarChart, AreaChart, PieChart, wrapped in ResponsiveContainer with a fixed-height parent. Not for charts built with other libraries.

Its SKILL.md is about 830 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: A high-performance, enterprise-grade Next.js 16 application for mission-focused non-profit organizations. Built for high impact teams. The licence is AGPL-3.0.

When your agent uses it

  • Creating charts with Recharts — LineChart
  • Wrapped in ResponsiveContainer with a fixed-height parent

Example prompts

  • “/rechart”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Define the data shape and stable keys.
  2. Choose the simplest chart that answers the question.
  3. Wrap in ResponsiveContainer with a height.
  4. Add axes, tooltip, and legend as needed.
  5. Disable animation or aggregate data for large sets.

What it can do on your machine

Read from SKILL.md and the folder at commit c30c8ff. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are typescript).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Rechart loads about 826 tokens when it runs. Until then it costs about 72 tokens; SKILL.md has 203 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~72
When it runs · the whole SKILL.md, loaded when a task matches
~826

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Asymmetric-al/core at commit c30c8ff, republished under its AGPL-3.0 licence (© Asymmetric-al). 203 words, ~826 tokens.

Download SKILL.mdSave it as .claude/skills/rechart/SKILL.md (or your agent's skills folder).
name
rechart
description
Build responsive, readable charts with Recharts using correct data mapping and composition. Use whenever creating charts with Recharts — LineChart, BarChart, AreaChart, PieChart, wrapped in ResponsiveContainer with a fixed-height parent. Not for charts built with other libraries.

Recharts — Skill

Name: recharts Purpose: Build responsive, readable charts with Recharts using correct data mapping and composition. Use this skill whenever creating charts with Recharts.

Applies when: Using LineChart, BarChart, AreaChart, PieChart, ResponsiveContainer. Do not use when: Charts are not built with Recharts.

Rules

  • Always responsive: Wrap charts in ResponsiveContainer and ensure a fixed height parent.
  • Explicit data model: Normalize data and use stable dataKey values.
  • Pick the simplest chart: Use LineChart for trends, BarChart for comparisons, AreaChart for cumulative/volume, PieChart for part-to-whole.
  • Interactivity: Add Tooltip; add Legend when multiple series exist.
  • Performance: Disable animation for large/static dashboards and reduce point count.

Workflow

  1. Define the data shape and stable keys.
  2. Choose the simplest chart that answers the question.
  3. Wrap in ResponsiveContainer with a height.
  4. Add axes, tooltip, and legend as needed.
  5. Disable animation or aggregate data for large sets.

Checklists

Implementation checklist
  • Chart is wrapped in ResponsiveContainer
  • X/Y axes are present when needed
  • Tooltip shows correct units
  • dataKey matches field names
Review checklist
  • Animations disabled for large datasets
  • Colors are accessible

Minimal examples

Line chart (trend)
tsx
import {
  LineChart,
  Line,
  XAxis,
  YAxis,
  CartesianGrid,
  Tooltip,
  Legend,
  ResponsiveContainer,
} from "recharts";

export function SalesChart({
  data,
}: {
  data: Array<{ month: string; sales: number }>;
}) {
  return (
    <div style={{ height: 320 }}>
      <ResponsiveContainer width="100%" height="100%">
        <LineChart
          data={data}
          margin={{ top: 8, right: 16, bottom: 8, left: 8 }}
        >
          <CartesianGrid strokeDasharray="3 3" />
          <XAxis dataKey="month" />
          <YAxis />
          <Tooltip />
          <Legend />
          <Line type="monotone" dataKey="sales" dot={false} />
        </LineChart>
      </ResponsiveContainer>
    </div>
  );
}
Custom tooltip
tsx
type TooltipProps = {
  active?: boolean;
  label?: string;
  payload?: Array<{ name?: string; value?: number | string }>;
};

export function CustomTooltip({ active, label, payload }: TooltipProps) {
  if (!active || !payload?.length) return null;
  return (
    <div className="rounded-md border bg-white p-2 text-sm shadow">
      <div className="font-medium">{label}</div>
      <ul className="mt-1 space-y-0.5">
        {payload.map((p, i) => (
          <li key={i}>
            {p.name}: {p.value}
          </li>
        ))}
      </ul>
    </div>
  );
}

Common mistakes / pitfalls

  • Missing ResponsiveContainer or fixed-height parent
  • Mismatched dataKey values
  • Over-animating large dashboards
  • Rendering too many points without aggregation

© Asymmetric-al, AGPL-3.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/rechart of Asymmetric-al/core.

Open the folder on GitHubat commit c30c8ff

Compare with similar skills

Rechart next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Rechart compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Rechart this skillAsymmetric-al/core381—~826Automated safety check: PassAGPL-3.0
Chart Visualizationbytedance/deer-flow84k1 repos~840Automated safety check: PassMIT
Responsive Unitsthedaviddias/Front-End-Checklist74k—~472Automated safety check: PassMIT
Responsive Designwshobson/agents40k2 repos~498Automated safety check: PassMIT
Token Mapnexu-io/open-design100k—~1.4kAutomated safety check: PassApache-2.0
Maps Geographyasgeirtj/system_prompts_leaks69k—~717Automated safety check: PassCC0-1.0

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  • Chart Visualization

    bytedance/deer-flow

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    84k GitHub starsUsed in 1 repo~840 tokens
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  • Responsive Units

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Questions about Rechart

What does Rechart do?

Build responsive, readable charts with Recharts using correct data mapping and composition. Rechart is an agent skill from Asymmetric-al/core. Build responsive, readable charts with Recharts using correct data mapping and composition.

When should I use Rechart?

Rechart fits situations like: creating charts with Recharts — LineChart; wrapped in ResponsiveContainer with a fixed-height parent.

How do I install Rechart in Claude Code?

Run `npx skills add Asymmetric-al/core --skill rechart -a claude-code`. Or copy the skill folder (.agents/skills/rechart in Asymmetric-al/core) into .claude/skills/rechart in your project. Claude Code loads it when a task matches its description.

How do I install Rechart in Codex?

Run `npx skills add Asymmetric-al/core --skill rechart -a codex`. Or copy the skill folder (.agents/skills/rechart in Asymmetric-al/core) into .agents/skills/rechart in your project. Codex loads it when a task matches its description.

Can I use Rechart in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Asymmetric-al/core --skill rechart -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/rechart, .gemini/skills/rechart, .github/skills/rechart and .opencode/skills/rechart in your project.

What does Rechart need to run?

SKILL.md names no scripts, command-line tools or credentials: Rechart is instructions for the agent only.

Does Rechart access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Rechart safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Rechart use?

Rechart is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Rechart use?

About 826 tokens (SKILL.md is roughly 3.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Rechart?

Skills that share tags, products or a category with Rechart: Chart Visualization (bytedance/deer-flow, 84k stars), Responsive Units (thedaviddias/Front-End-Checklist, 74k stars), Responsive Design (wshobson/agents, 40k stars) and Token Map (nexu-io/open-design, 100k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Rechart?

Asymmetric-al (a GitHub organization) maintains it in Asymmetric-al/core, which has 381 GitHub stars. The repository holds 43 skills in this directory. The repository was last updated on October 9, 2026.

Source: Asymmetric-al/core on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.