Agent skill · AI & Agents

breadth-chart-analyst

This skill should be used when analyzing market breadth charts, specifically the S&P 500 Breadth Index (200-Day MA based) and the US Stock Market Uptrend Stock Ratio charts. Use this skill when the user provides breadth chart images for analysis, requests market breadth assessment, positioning strategy recommendations, or wants to understand medium-term strategic and short-term tactical market outlook based on breadth indicators. All analysis and output are conducted in English.

majiayu000github.com/majiayu000GitHub ↗
claude-codeMIT
Install
npx skills add majiayu000/claude-skill-registry --skill breadth-chart-analyst-nicepkg-ai-workflow --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 2
SKILL.md size: 23 KB
Bundled scripts: none
Path: skills/analysis/breadth-chart-analyst-nicepkg-ai-workflow/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 534
Language: HTML

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

Review
written from the skill's own SKILL.md · Aug 5, 2026

What it does

The skill analyzes two market breadth charts to provide strategic and tactical perspectives: Chart 1 (S&P 500 Breadth Index based on the 200-Day MA) and Chart 2 (US Stock Market Uptrend Ratio). It uses a dual-timeframe, backtested-strategy framework to identify clear buy/sell signals, assess market regime, and generate actionable positioning guidance for different investor types.

How it works

  • It expects user-provided breadth chart images and guides the user through identifying which charts are present.
  • It instructs loading the breadth chart methodology from a specified reference and examining sample charts to understand visuals and markers.
  • For Chart 1 analysis, it requires extracting current readings (8MA and 200MA levels, slopes, distances to 73% and 23% thresholds, and most recent date) and performing a detailed, step-by-step recent-data-point review (rightmost 3–5 weeks) to determine the 8MA and 200MA trends, potential troughs/peaks, and whether a reversal pattern constitutes a valid signal. It includes checking for a trough, confirmation of 2–3 upward periods, and monitoring for a failed reversal.
  • It documents signal markers (latest troughs/peaks, durations, pink backgrounds) and classifies the current regime (e.g., Healthy Bull Market, Overheated, Bear Market).
  • It applies backtested rules to determine BUY or SELL signals, with explicit criteria for CONFIRMED, DEVELOPING, FAILED, or NO SIGNAL, and outlines position statuses (Long, Preparing to Enter, WAIT/Flat, Preparing to Exit).
  • For Chart 2 analysis, it requires current uptrend ratio readings, color, slope, and threshold distances; identifies trend transitions; classifies market condition (e.g., Extreme Oversold, Extreme Overbought); and determines trading positions (Enter Long, Exit Long) based on color transitions and overshoot/overbought thresholds.
  • When both charts are provided, it performs a Combined Analysis with alignment assessment, scenario classification (four scenarios), and a unified recommendation across long-term, swing, and active traders.
  • It requires generating a markdown analysis report per the provided templates and saving with the specified filename conventions.
  • All analysis is conducted in English and the final output adheres to the stated quality checks (language, latest data trend, trend direction accuracy, failed reversal verification, specific values, explicit signal status, strategy alignment, probability sums, actionable guidance, historical context, and risk factors).

When to use it

  • When the user provides breadth chart images for analysis.
  • When the user requests market breadth assessment.
  • When the user seeks positioning strategy recommendations.
  • When the user wants understanding of medium-term strategic and short-term tactical market outlook based on breadth indicators.

What it can touch

  • Tools: claude-code
  • Files mentioned in workflow: Read: references/breadth_chart_methodology.md, View: assets/SP500_Breadth_Index_200MA_8MA.jpeg, View: assets/US_Stock_Market_Uptrend_Ratio.jpeg, Read and use template: assets/breadth_analysis_template.md

Caveats

  • All analysis assumes the availability and legibility of chart images provided by the user.
  • The instructions emphasize strict, step-by-step evaluation of recent data points (rightmost 3–5 weeks) for 8MA and 200MA trajectories and do not allow speculative extrapolation beyond explicit chart-based readings.
  • Outcomes are limited to the signals and classifications defined (CONFIRMED BUY, DEVELOPING, FAILED, WAIT, SELL, etc.) and do not guarantee future performance.
  • All content is in English.
From the SKILL.md

# Breadth Chart Analyst ## Overview This skill enables specialized analysis of two complementary market breadth charts that provide strategic (medium to long-term) and tactical (short-term) market perspectives. Analyze breadth chart images to assess market health, identify trading signals based on backtested strategies, and develop positioning recommendations. All thinking and output are conducted exclusively in English. ## Core Principles 1. **Dual-Timeframe Analysis**: Combine strategic (Chart 1: 200MA Breadth) and tactical (Chart 2: Uptrend Ratio) perspectives 2. **Backtested Strategy Focus**: Apply proven systematic strategies based on historical patterns 3. **Objective Signal Identification**: Focus on clearly defined thresholds, transitions, and markers 4. **English Communication**: Conduct all analysis and generate all reports in English 5. **Actionable Recommendations**: Provide specific positioning guidance for different investor types ## Chart Types and Purposes ### Chart 1: S&P 500 Breadth Index (200-Day MA Based) **Purpose**: Medium to long-term strategic market positioning **Key Elements**: - **8-Day MA (Orange Line)**: Short-term breadth trend, primary entry signal ge

What's inside
Steps it walks through
  1. Overview
  2. Core Principles
  3. Chart Types and Purposes
  4. Chart 1: S&P 500 Breadth Index (200-Day MA Based)
  5. Chart 2: US Stock Market - Uptrend Stock Ratio
  6. Analysis Workflow
  7. Step 1: Receive Chart Images and Prepare Analysis
  8. Step 2: Load Breadth Chart Methodology
  9. Step 3: Examine Sample Charts (First Time or for Reference)
  10. Step 4: Analyze Chart 1 (200MA-Based Breadth Index)
  11. Step 5: Analyze Chart 2 (Uptrend Stock Ratio)
  12. Step 6: Combined Analysis (When Both Charts Provided)
  13. Step 7: Generate Analysis Report in English
  14. Step 8: Quality Assurance
Ships with 1 file
  • metadata.json
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About this skill
What does the breadth-chart-analyst skill do?

This skill should be used when analyzing market breadth charts, specifically the S&P 500 Breadth Index (200-Day MA based) and the US Stock Market Uptrend Stock Ratio charts. Use this skill when the user provides breadth chart images for analysis, requests market breadth assessment, positioning strategy recommendations, or wants to understand medium-term strategic and short-term tactical market outlook based on breadth indicators. All analysis and output are conducted in English.

How do I install it?

Run `npx skills add majiayu000/claude-skill-registry --skill breadth-chart-analyst-nicepkg-ai-workflow --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

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