varnan-tech/opendirectory · skills/graphic-chart/SKILL.md

graphic-chart skillB

graphic-chart is agent-read markdown (skill) from varnan-tech/opendirectory: 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"..

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add varnan-tech/opendirectory/graphic-chart@v2.0.0
Exact content
mdr add varnan-tech/opendirectory/graphic-chart@sha256:2ccbf5a33b6919d5

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_owq27zy6o2gc74hd.svg)](https://markdownregistry.com/a/art_owq27zy6o2gc74hd)

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Versions

versioncommittedcommitsizeaudit
v2.0.0 latest2026-05-03 7ab3680 11,820 BB view

Audit of the latest version

B  16 of 17 checks passed. Deterministic, no model, same answer every run.
  • 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 (11820 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

Source

GitHub

varnan-tech/opendirectory · 635 stars · license MIT · pushed 2026-08-16 · 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/2ccbf5a33b6919d5714c156d62e1e9f3ed384e6b2d30b14755565a46781628e3