GitHub
blog-post-optimizer
Analyze blog posts for SEO, readability, headline quality, and content structure. Generate meta tags and optimization recommendations with scoring.
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GitHub
sankey-diagram-creator
Create interactive Sankey diagrams for flow visualization from CSV, DataFrame, or dict data. Supports node/link styling and HTML/PNG/SVG export.
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GitHub
data-storyteller
Transform CSV/Excel data into narrative reports with auto-generated insights, visualizations, and PDF export. Auto-detects patterns and creates plain-English summaries.
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GitHub
regex-tester
Test, debug, and explain regular expressions. Visualize matches, generate patterns from examples, and convert between regex flavors.
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GitHub
pdf-toolkit
Comprehensive PDF manipulation - merge, split, rotate, extract pages, add watermarks, compress, and encrypt PDFs programmatically.
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GitHub
business-card-scanner
Extract contact information from business card images using OCR - name, company, email, phone, address.
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GitHub
dataset-comparer
Compare two datasets to find differences, added/removed rows, changed values. Use for data validation, ETL verification, or tracking changes.
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GitHub
video-metadata-inspector
Use when asked to inspect video file metadata, get video duration, resolution, codec information, frame rate, or bitrate.
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GitHub
report-generator
Generate professional PDF/HTML reports with charts, tables, and narrative from data. Supports templates, branding, and automated report generation.
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GitHub
ab-test-calculator
Calculate statistical significance for A/B tests. Sample size estimation, power analysis, and conversion rate comparisons with confidence intervals.
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GitHub
gantt-chart-creator
Create project timeline Gantt charts with dependencies, milestones, and progress tracking. Supports static (PNG/SVG) and interactive (HTML) output.
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GitHub
distance-calculator
Calculate distances between geographic coordinates, find nearby points, and compute travel distances. Use for logistics, delivery routing, or location analysis.
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GitHub
ml-model-explainer
Explain ML model predictions using SHAP values, feature importance, and decision paths with visualizations.
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GitHub
feature-engineering-kit
Auto-generate features with encodings, scaling, polynomial features, and interaction terms for ML pipelines.
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GitHub
survey-analyzer
Analyze survey responses with Likert scale analysis, cross-tabulations, sentiment scoring, and frequency distributions with visualizations.
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GitHub
model-comparison-tool
Use when asked to compare multiple ML models, perform cross-validation, evaluate metrics, or select the best model for a classification/regression task.
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GitHub
clustering-analyzer
Cluster data using K-Means, DBSCAN, hierarchical clustering. Use for customer segmentation, pattern discovery, or data grouping.
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GitHub
word-cloud-generator
Generate styled word clouds from text with custom shapes, colors, fonts, and stopword filtering. Supports PNG/SVG export and frequency dictionaries.
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GitHub
phone-number-formatter
Standardize and format phone numbers with international support, validation, and multiple output formats.
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GitHub
scientific-paper-figure-generator
Use when asked to create publication-ready scientific figures, charts for research papers, or academic visualizations.
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GitHub
keyword-extractor
Extract keywords and key phrases from text using TF-IDF, RAKE, and frequency analysis. Generate word clouds and export to various formats.
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GitHub
meeting-notes-formatter
Convert raw meeting notes to structured markdown or PDF with automatic section detection, action items extraction, and attendee parsing.
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GitHub
audio-normalizer
Use when asked to normalize audio volume, match loudness, or apply peak/RMS normalization to audio files.
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GitHub
skill-creator
Guide for creating effective skills. Use when building new skills or updating existing ones that extend ChatGPT with specialized knowledge, workflows, or tool integrations.
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