graphic-chart SKILL.md skillB
graphic-chart from varnan-tech/opendirectory is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add varnan-tech/opendirectory/graphic-chart@v2.0.0Pins v2.0.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- varnan-tech/opendirectory
- Path
skills/graphic-chart/SKILL.md- Versions recorded
- 2
- Latest version
- v2.0.0, committed Sep 16, 2026
- First version recorded
- May 3, 2026
- Size
- 11,763 bytes
- Repository stars
- 699
- License
- MIT
Generates data visualization charts (bar, line, area, pie, doughnut, scatter, radar, treemap) as PNG using Apache ECharts v6. 1080×1080px default, 5 style presets, highlight annotations. Trigger when user says "create a chart", "visualize data", "make a bar chart", "line graph", "pie chart", "data visualization", "chart this data", "plot", "graph", or "visualize these numbers".
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# graphic-chart
Generates data visualization charts as PNG. Renders HTML with Apache ECharts v6 in headless Chromium via Playwright → screenshots at 2× retina quality.
CDN: `https://cdn.jsdelivr.net/npm/echarts@6.0.0/dist/echarts.min.js`
---
## Critical Rules (read before every generation)
1. **`area` type → `type: 'line'` + `areaStyle: {}`** — ECharts has no `type: 'area'`.
2. **`doughnut` → `type: 'pie'` + `radius: ['40%', '70%']`** — ECharts has no `type: 'doughnut'`.
3. **Readiness signal: register `chart.on('finished', fn)` BEFORE `chart.setOption()`** — ECharts bug #14101/#17500: if listener is registered after setOption, it silently never fires. Always register both `finished` and `rendered` events before setOption.
4. **`xAxis.type: 'category'` must be explicit** — ECharts does not infer it from the data. Forgetting this produces a blank chart.
5. **Category labels go in `xAxis.data`**, not in a `data.labels` array. ECharts structure is flat: `{ xAxis, yAxis, series, grid, title, legend }` — not nested under `data` or `options`.
6. **Data labels are fully built-in** — use `label: { show: true }` on any series. No plugin needed.
…Read the whole file at its exact version.
How to install
mdr add varnan-tech/opendirectory/graphic-chart@sha256:f204657a942978abThe line at the top of this page pins the label v2.0.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_owq27zy6o2gc74hd)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between May 3, 2026 and Sep 16, 2026, about one every 136 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v2.0.0 latest | 2026-09-16 | a03d635 | 11,763 B | B | view · diff |
| v2.0.0 | 2026-05-03 | 7ab3680 | 11,820 B | B | view |
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (11763 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
varnan-tech/opendirectory · 699 stars · license MIT · pushed 2026-10-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_owq27zy6o2gc74hd GET https://markdownregistry.com/api/v1/resolve?ref=varnan-tech/opendirectory/graphic-chart GET https://markdownregistry.com/api/v1/blob/f204657a942978ab570ec304d23a56929057c3a31732517c8b99d576b61a6113
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.