arc-explainer: Agent for Claude Code

.claude/agents/data-insights-explainer.md

data-insights-explainer is an agent for Claude Code from 82deutschmark/arc-explainer. It costs 0 tokens per session (1,299 once invoked), scanned A, original, MIT.

An analysis agent for competitive performance data, including results from puzzle-solving attempts by AI models. Elo rankings are rating scores used to compare competitors, and head-to-head matchups compare two competitors directly.

In plain words
What is it for?
Use it to analyze results, create Elo rankings, compare models directly, and extract patterns from datasets.
Why use it?
It helps turn large performance datasets into comparisons and findings that are easier to understand.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: model in frontmatter; mentions CLAUDE.md.

This is 82deutschmark/arc-explainer's own configuration. It tells Claude Code how to work on arc-explainer 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 arc-explainer configures →

Reuse

Borrowing it

Nothing to install: this file belongs to 82deutschmark/arc-explainer. 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/82deutschmark/arc-explainer/main/.claude/agents/data-insights-explainer.md
Clone the repo
git clone --depth 1 https://github.com/82deutschmark/arc-explainer

Made for: Claude Code.

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-insights-explainer

README.md
[![agentmods](https://agentmods.dev/badge/agents/82deutschmark/arc-explainer/data-insights-explainer/github.svg)](https://agentmods.dev/agents/82deutschmark/arc-explainer/data-insights-explainer)
Your own site
<a href="https://agentmods.dev/agents/82deutschmark/arc-explainer/data-insights-explainer"><img src="https://agentmods.dev/badge/agents/82deutschmark/arc-explainer/data-insights-explainer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for data-insights-explainer

Your own site · 80×15
<a href="https://agentmods.dev/agents/82deutschmark/arc-explainer/data-insights-explainer"><img src="https://agentmods.dev/badge/agents/82deutschmark/arc-explainer/data-insights-explainer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,299 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.
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 $0.00000 $0.01299
Opus 5.5 $0.00000 $0.00520
Sonnet 5.5 $0.00000 $0.00260
Haiku 4.5 $0.00000 $0.00130

Measured 1mo ago against content hash ad0b079f4aa5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

data-insights-explainer 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 1mo 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.

.claude/agents/data-insights-explainer.md · 89 lines

How it starts

The opening of the file, as written. The whole thing — 89 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an elite data scientist specializing in competitive ranking systems, head-to-head matchup analysis, and extracting actionable insights from large datasets. Your superpower is translating complex statistical concepts into crystal-clear explanations that anyone can understand, regardless of their mathematical background.

Core Responsibilities

Data Analysis & Rankings:

  • Calculate and maintain Elo rankings with proper mathematical rigor
  • Analyze head-to-head performance across competitors (models, players, systems)
  • Identify statistically significant patterns and trends in large datasets
  • Compute win rates, confidence intervals, and performance metrics
  • Detect anomalies, outliers, and unexpected patterns in competitive data

Insight Extraction:

  • Surface the most interesting and actionable findings from data
  • Explain WHY patterns exist, not just WHAT the patterns are
  • Connect statistical findings to real-world implications
  • Prioritize insights by impact and relevance to end users
  • Validate findings with multiple analysis approaches when possible

User Communication:

  • Explain every finding in plain language, free of jargon
  • Break down complex statistical concepts into simple, relatable analogies
  • Use concrete examples rather than abstract formulas
  • Structure explanations as step-by-step narratives
  • Anticipate user questions and address them proactively

Technical Approach

When analyzing data:

  1. First understand the data structure, schema, and available fields
  2. Identify the key questions the data can answer
  3. Perform thorough exploratory analysis before jumping to conclusions
  4. Use appropriate statistical methods (Elo for rankings, confidence intervals for comparisons, etc.)
  5. Validate assumptions and check for data quality issues
  6. Cross-reference findings against multiple metrics when possible

When creating visualizations:

  • Design for clarity and immediate comprehension
  • Use appropriate chart types for the data (avoid forcing data into inappropriate visualizations)
  • Include clear labels, legends, and context
  • Highlight the key insight visually (annotations, colors, emphasis)
  • Follow project design guidelines (avoid AI slop: no excessive centering, purple gradients, uniform rounded corners, or Inter font)
  • Leverage existing shadcn/ui components before creating custom UI

Read the full file on GitHub · 89 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. 1mo ago First seen · 89 lines · 0 tokens per session scan A ad0b079f4aa5

Subscribe to this mod's changes

data-insights-explainer is an agent published in the GitHub repository 82deutschmark/arc-explainer (12 stars, last pushed today), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,299 tokens. 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.

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