Math
Mathematical computations, formulas, statistics
postgis-buffer
by mmbmf1
Create buffer geometries with ST_Buffer, with correct units and safe patterns for geometry vs geography.
postgis-transform
by mmbmf1
Reproject PostGIS geometry using ST_Transform with correct SRID handling and safe usage patterns.
maths
by udnisap
Performs numerical and symbolic mathematics using NumPy, SciPy, SymPy, and mpmath. Use when the user needs linear algebra, arrays, optimization, integration, ODEs, symbolic expressions, equation solving, or arbitrary-precision arithmetic.
xlsx
by macnversion
"Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas"
data-analysis
by IHKREDDY
Data analysis workflows and patterns for exploring, transforming, and visualizing data. Use when working with data, creating reports, or when users mention "data analysis", "analyze data", "data exploration", or "reporting".
postgis-nearest
by mmbmf1
Find nearest features efficiently using PostGIS KNN (<->) and distance ordering (with SRID/unit guidance).
scarface-mean-reversion
by copyleftdev
Trade mean reversion setups in the style of Scarface Trades, the mean reversion specialist known for mathematical precision and statistical edge. Emphasizes standard deviation bands, RSI extremes, and calculated entries with defined risk. Use when trading overextended moves, fading extremes, or building systematic reversion strategies.
hytopia-plugins
by Abstrucked
Helps create and use plugins in HYTOPIA SDK games. Use when users need to add NPM packages, create reusable modules, or extend game functionality. Covers plugin requirements, installation, and best practices.
subject-line-engine
by tonyflo79
Generate high-performing email subject lines from 18 formula categories derived from analysis of 2,684 Ben Settle emails. Use AFTER email bodies are written by E1 — subject lines must match the WRITTEN email, not a planned or hypothetical one. Produces multiple subject line candidates per email, scores them against 7 SL-specific criteria, and presents the top 5-10 for human selection. Targets 6-7 word sweet spot from corpus analysis. Trigger when users mention subject lines, email subjects, SL testing, open rate optimization, or writing subject lines for existing email drafts. Requires E1 email draft output.
data-analysis
by IHKREDDY
Analyze datasets using Python with pandas, numpy, and visualization libraries. Generates statistical summaries, identifies patterns, creates charts, and provides insights. Use when analyzing CSV/Excel files, exploring data, creating visualizations, or when users mention data analysis, statistics, charts, or datasets.
manim-composer
by alexwelcing
Trigger when: (1) User wants to create an educational/explainer video, (2) User has a vague concept they want visualized, (3) User mentions "3b1b style" or "explain like 3Blue1Brown", (4) User wants to plan a Manim video or animation sequence, (5) User asks to "compose" or "plan" a math/science visualization. Transforms vague video ideas into detailed scene-by-scene plans (scenes.md). Conducts research, asks clarifying questions about audience/scope/focus, and outputs comprehensive scene specifications ready for implementation with ManimCE or ManimGL. Use this BEFORE writing any Manim code. This skill plans the video; use manimce-best-practices or manimgl-best-practices for implementation.
xlsx
by zhuxining
"Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas"
xlsx
by Jackiexiao
"QUERY LENGTH LIMIT EXCEEDED. MAX ALLOWED QUERY : 500 CHARS"
xlsx
by zhongjis
"Use this skill any time a spreadsheet file is the primary input or output. This means any task where the user wants to: open, read, edit, or fix an existing .xlsx, .xlsm, .csv, or .tsv file (e.g., adding columns, computing formulas, formatting, charting, cleaning messy data); create a new spreadsheet from scratch or from other data sources; or convert between tabular file formats. Trigger especially when the user references a spreadsheet file by name or path — even casually (like \"the xlsx in my downloads\") — and wants something done to it or produced from it. Also trigger for cleaning or restructuring messy tabular data files (malformed rows, misplaced headers, junk data) into proper spreadsheets. The deliverable must be a spreadsheet file. Do NOT trigger when the primary deliverable is a Word document, HTML report, standalone Python script, database pipeline, or Google Sheets API integration, even if tabular data is involved."
stats
by rozwer
Show usage statistics from stats.jsonl — tool/skill usage counts, top 5, and optimization suggestions.
xlsx
by jyasuu
"Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. When Claude needs to work with spreadsheets (.xlsx, .xlsm, .csv, .tsv, etc) for: (1) Creating new spreadsheets with formulas and formatting, (2) Reading or analyzing data, (3) Modify existing spreadsheets while preserving formulas, (4) Data analysis and visualization in spreadsheets, or (5) Recalculating formulas"
geojson-postgis
by mmbmf1
Serialize PostGIS geometry rows into a GeoJSON FeatureCollection for map display (4326, Feature + properties).
Convert Document
by midhunxavier
Convert between LaTeX and DOCX formats. Preserves structure, citations, math equations, figures, and tables during conversion.
xlsx
by Jackiexiao
"QUERY LENGTH LIMIT EXCEEDED. MAX ALLOWED QUERY : 500 CHARS"
bazi-pro
by rozario-dev
Professional Bazi analysis skill. Invoke when user asks for "bazi", "fortune telling", "calculate bazi", "eight characters", or "interpret bazi".
postgis-extract-xy
by mmbmf1
Extract longitude and latitude from PostGIS geometries using ST_X and ST_Y safely.
_business-finance-mastery
by TriNgo0108
Master financial integrations, competitive analysis, cost optimizations, and business metrics. Use this as a central index to access specialized sub-skills.
motion-studio
by mercadoa1234-arcDANTE
v3 · The ultimate teaching-studio skill. Generate complete narrated educational, scientific, and engineering videos that combine: parametric CAD (build123d) with exploded views and orbital cameras (pyvista), Manim motion graphics and equation reveals, source-document image insertion (PDF page screenshots, Substack post screenshots, photographs, figures), composite overlays, AI-driven 3D reconstruction handoffs, and high-fidelity browser-GPU renders — all narrated with bundled neural Kokoro-82M CPU TTS (seven voices, no network). Audio-first pipeline: phrase-aware Kokoro chunking gives natural rhythm to short phrase rhythms ("never three, never six, never nine") and paragraph-level breath to long sections. Every shot picks its render engine (pyvista · manim · composite · image · bom · title) and the orchestrator dispatches. Output: soft-sub MP4 (mov_text track + sidecar SRT, no pixel burn-in) with -14 LUFS audio mastering, gentle denoise, optional subtle reverb. Trigger phrases: "make a teaching video", "explain X with animation and narration", "narrate this paper", "adapt this Substack post into a video", "3blue1brown style explainer", "CAD walkthrough with formulas", "design and animate a part with the math overlaid", "build a lesson from this source document".
amber
by iamkaf
Amber docs index. Use when building or porting Minecraft mods that use the Amber multiloader library (unified APIs for Fabric/Forge/NeoForge), or when you need quick links to Amber systems (registry, events, networking, commands, config).