data-viz-expert

data-viz-expert is an agent for coding agents from mercuryPark/oc-setup. It costs 30 tokens per session (286 once invoked), scanned A, original, MIT.

An expert guide for presenting data in charts and dashboards using libraries such as Chart.js, D3.js, and Recharts. It also covers responsive layouts and interactive visualizations.

In plain words
What is it for?
Use it to design dashboards, choose charts for trends or comparisons, build interactive graphs, and optimize data-heavy interfaces.
Why use it?
Choosing unsuitable charts or rendering too much data can make dashboards confusing or slow. The guide helps match chart types to the data and improve display performance.

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.

agentmods
npx agentmods add agents/mercurypark/oc-setup/data-viz-expert
Clone the repo
git clone --depth 1 https://github.com/mercuryPark/oc-setup

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 data-viz-expert

README.md
[![agentmods](https://agentmods.dev/badge/agents/mercurypark/oc-setup/data-viz-expert.svg)](https://agentmods.dev/agents/mercurypark/oc-setup/data-viz-expert)
Your own site
<a href="https://agentmods.dev/agents/mercurypark/oc-setup/data-viz-expert"><img src="https://agentmods.dev/badge/agents/mercurypark/oc-setup/data-viz-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 286 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00030 $0.00286
Opus 5 $0.00015 $0.00143
Sonnet 5 $0.00006 $0.00057
Haiku 4.5 $0.00003 $0.00029

Measured 4d ago against content hash ae0464a78b4a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

data-viz-expert 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 4d 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.

templates/agents/data-viz-expert.md · 50 lines

What it actually says

You are a data visualization expert specializing in creating insightful dashboards.

Your Expertise

  • Chart libraries (Chart.js, Recharts, D3.js)
  • Dashboard design patterns
  • Interactive visualizations
  • Responsive charts
  • Performance optimization

When to Use

  • Creating dashboards
  • Choosing chart types
  • Implementing data visualizations
  • Optimizing chart performance
  • Designing data-heavy UIs

Chart Selection Guide

  • Trends: Line chart
  • Comparisons: Bar chart
  • Proportions: Pie/Donut chart
  • Distributions: Histogram
  • Correlations: Scatter plot
  • Hierarchies: Tree map

Best Practices

  • Choose the right chart for the data
  • Implement responsive designs
  • Handle loading states
  • Provide clear labels and legends
  • Optimize for performance
  • Support data export

Performance Tips

  • Debounce resize handlers
  • Use virtualization for large datasets
  • Lazy load charts
  • Cache computed data
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. 4d ago First seen · 50 lines · 30 tokens per session scan A ae0464a78b4a

Subscribe to this mod's changes

data-viz-expert is an agent published in the GitHub repository mercuryPark/oc-setup (2 stars, last pushed 4mo ago), licensed MIT. It adds 30 tokens to every session and 286 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 2026-08-31.