Data & Analytics

z3z1ma Skill

Use when replaying Ledger import CSV fixtures to check externalId output.

z3z1ma Skill

Use when replaying the legacy Ledger import v1 CSV fixture to verify sourceRef preservation, cent normalization, and deterministic posting dates.

clidey Bundle

Query and explore databases via MCP. Use when the user asks to inspect schemas, run SQL, browse tables, analyze data quality, generate ER diagrams, or work with PostgreSQL, MySQL, MariaDB, TiDB, SQLite, MongoDB, Redis, ClickHouse, Elasticsearch, or DuckDB.

clidey Skill

Convert natural language questions into SQL queries. Activates when users ask data questions in plain English like "show me users who signed up last week" or "find orders over $100".

aizenvoltprime Bundle

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

harumiweb Bundle

Use when Codex or another AI agent needs to edit, test, debug, or validate Excel VBA workbooks with xlflow. Provides the safe VBA development workflow for xlflow projects, including pull/push, lint, run, test, diff, XlflowUI dialog and file dialog wrapper guidance, headless dialog responses, failure handling, and final reporting rules.

rimagination Skill

大型文献清单分类摸底(嗅探优先)。当用户拿到数百篇以上的文献清单(WOS导出/Excel/DOI列表),要求分类、摸底、区分"哪些是OA开源、哪些Sci-Hub/灰色源有、哪些需机构权限"、为批量下载做路由规划时使用。先30分钟嗅探全分类,再分桶下载,不对全清单跑慢速竞速。

rukkha1024 Bundle

Create and refactor figure-generating scripts in aggregated_signal_viz (script/vis_*.py) using Polars (no pandas). Use config.yaml for channel grid_layout (signal_groups.<group>.grid_layout) and summary max_cols (figure_layout.summary_plots.<plot_type>.max_cols). Save PNG (300dpi) under Path(output.base_dir)/<plot_type>/ and keep EMG muscle order from config.yaml signal_groups.emg.columns. Triggers on onset plot, boxplot, summary plot, grid plot, aggregated signal figure.

payez-net Skill

Talk to a VibeSQL database — query, create tables, manage data via natural language

91zgaoge Skill

Comprehensive spreadsheet creation, editing, and analysis with support for formulas, formatting, data analysis, and visualization. USE THIS SKILL for ALL spreadsheet files including .xls (Excel 97-2003), .xlsx, .xlsm, .csv, .tsv. Use for: (1) Reading or analyzing spreadsheet data, (2) Creating new spreadsheets with formulas and formatting, (3) Modifying existing spreadsheets while preserving formulas, (4) Data analysis and visualization, (5) Recalculating formulas. IMPORTANT: For .xls files (legacy Excel format), you MUST use this skill - do NOT attempt to read them directly as they are binary files.

microsoft Skill

Guidance for using the PowerPlatform Dataverse Client Python SDK. Use when calling the SDK like creating CRUD operations, SQL queries, table metadata management, relationships, and upload files.

antvis Bundle

基于 WebGL 的大规模地理空间数据可视化引擎。适用于： (1) 创建交互式 WebGL 地图应用 (2) 可视化地理空间数据（点、线、面、热力图） (3) 构建位置数据驾驶舱 (4) 添加地图图层、交互和动画效果 (5) 处理并展示 GeoJSON、CSV 等空间数据

broomva Bundle

Evaluator-Governed Recursive Improvement (EGRI) framework for turning ambiguous goals into safe, measurable, rollback-capable recursive improvement systems. Use when the user wants to: (1) build a self-improving system for any domain (ML, RAG, workflows, ETL, UI, compiler tuning, etc.), (2) formalize a vague optimization goal into a bounded loop with evaluator, harness, and promotion policy, (3) create an autoresearch-style system beyond ML training, (4) design a mutable-artifact + immutable-evaluator architecture, (5) scaffold a problem-spec for recursive improvement, (6) turn "make X better" into a safe, auditable optimization process. Triggers on: "self-improving", "autoresearch", "autoany", "EGRI", "recursive improvement", "optimization loop", "evaluator-governed", "harness + evaluator", "mutable artifact", "problem compiler", "benchmark loop", "mutation surface".

ethpandaops Bundle

Deeply optimize a Xatu CBT transformation model query using live ClickHouse evidence. Use when the user wants performance analysis (not code edits) for `models/transformations/*.sql`, including dependency rendering, schema introspection, benchmark runs, and high-impact recommendations.

insforge Skill

Use when working on the @insforge/cli codebase itself — adding or modifying commands under src/commands/, touching src/lib/api or src/lib/analytics, changing package.json version, wiring telemetry, or preparing an npm release. Covers code conventions, PostHog analytics, agent-skills sync, and the release-triggered publish workflow.

stephanj Bundle

Generate optimized conference schedules using SolverForge (Timefold compatible). Use when the user needs to create conference schedules from CSV data with constraints like speaker conflicts, track distribution, room assignments, educational flow, and speaker availability. Supports both single-day and multi-day conferences. Python-native solution with no Java project setup required.

worldflowai Skill

ClickHouse database patterns, query optimization, analytics, and data engineering best practices for high-performance analytical workloads.

wimolivier Bundle

PostgreSQL 18+ enterprise best practices for database development. USE THIS SKILL WHEN THE USER: - Creates schemas, tables, functions, procedures, or triggers - Writes PL/pgSQL code (naming conventions: l_, in_, io_, co_ prefixes) - Implements Table API (SECURITY DEFINER functions, schema separation) - Manages migrations, indexes, constraints, or query performance - Works with PostgreSQL 18+ features (uuidv7, virtual columns) - Builds Medallion Architecture data warehouses (Bronze/Silver/Gold) - Reviews code for anti-patterns or migrates from Oracle PL/SQL CORE PATTERNS: - Three-schema separation: data (tables) → private (internal) → api (external) - Table API: All access via SECURITY DEFINER with SET search_path - Native PL/pgSQL migration system (no Flyway/Liquibase needed) - Trivadis naming: l_ (local), in_ (input), io_ (inout), co_ (constant)

imgoodbai Bundle

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

questdb Skill

Review QuestDB documentation pull requests for placement, discoverability, dual-audience (human + LLM) quality, example coverage, and SQL syntax diagrams. Use when reviewing a docs PR, a new or changed page, or assessing whether documentation is findable, correct, and usable by both engineers and LLMs that build systems against QuestDB.

zachjxyz Skill

Project technology stack patterns for FastAPI + PostgreSQL + SQLAlchemy + Alembic + PyTorch + pandas

gtastudio Skill

Django security best practices, authentication, authorization, CSRF protection, SQL injection prevention, XSS prevention, and secure deployment configurations.

4444j99 Bundle

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

johnrothan Bundle

阿里巴巴《Java 开发手册（黄山版）》编码规约。在编写、审查、重构或评审任何 Java 代码时都应使用本技能——包括命名风格、常量定义、代码格式、OOP 规约、日期时间、集合处理、 并发与多线程、控制语句、注释、异常处理、日志、单元测试、安全规约、MySQL 建表/索引/SQL/ORM、 以及应用分层等工程结构。无论用户是否明确提到“阿里规范 / P3C / 黄山版 / 开发手册”，只要任务涉及 Java 代码的产出或质量把关（如“写个 Java 类 / Service / DAO”“review 这段 Java”“这段代码符合规范吗” “建一张 MySQL 表”“帮我命名”“处理一下异常和日志”），都要主动参考本技能给出的规则与等级。

ninehills Bundle

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

lioensky Bundle

Open, create, read, analyze, edit, or validate Excel/spreadsheet files (.xlsx, .xlsm, .csv, .tsv). Use when the user asks to create, build, modify, analyze, read, validate, or format any Excel spreadsheet, financial model, pivot table, or tabular data file. Covers: creating new xlsx from scratch, reading and analyzing existing files, editing existing xlsx with zero format loss, formula recalculation and validation, and applying professional financial formatting standards. Triggers on 'spreadsheet', 'Excel', '.xlsx', '.csv', 'pivot table', 'financial model', 'formula', or any request to produce tabular data in Excel format.

aipmandy Bundle

Aggregate and analyze Codex/OpenClaw skills across GitHub sources with deterministic scripts. Use when tasks involve fetching SKILL.md indexes from official or community repositories, generating skills snapshots (JSON/CSV/Markdown), printing source and repository statistics, bootstrapping local collection clones, organizing collection coverage reports, or running risk audits for suspicious skill content.

maojiebc Bundle

会员数据顾问·马甲实战版（majia-huiyuan）。当核心交付物是会员指标口径、RFM、复购/留存/流失公式、核销率、客单价、会员分层/分群、人群圈选、标签体系、CDP、OneID 身份打通、Cohort、CRM/私域数据分析、会员数仓（DIM/DWD/DWS/ADS）、SQL/DDL、字段词典、数据质量、会员看板或观远 BI 复刻时使用。用户提出召回、提频、防流失、流失预警、新客转化、渠道迁移（外卖↔堂食）、导购任务分派等会员运营动作时，动作背后的数据依据（圈谁/何时/力度/派给谁/怎么回收）由本 Skill 负责；动作的执行内容（朋友圈、群发、欢迎语、社群 SOP、企微操作）与私域整盘经营诊断走 majia-siyu——同一动作的两半，先数据后执行。全部数值为模拟数据，仅结构与口径可引用。

tconbeer Bundle

Run SQL against any database from the command line with hsql, Harlequin's headless SQL client — execute a query or a .sql file, inspect a database's schemas, tables and columns, export results as CSV/JSON/Parquet, and read or write harlequin.toml profiles. Covers DuckDB, SQLite, Postgres, MySQL and other Harlequin adapters. Use whenever the work involves running SQL, finding out what is in a database, checking a connection string or DSN, a .sql file, or a config file for a database connection — including when the user never says "hsql" or "harlequin".

theaayushstha1 Bundle

Automated job applications with AI-powered resume tailoring, cover letters, recruiter outreach, interview prep, ATS optimization, and smart analytics.

trae1oung Bundle

Generate publication-quality matplotlib figures by selecting a pre-built paper style and substituting user data. Use when: user provides data (numbers, arrays, or CSV) and wants a chart in a specific academic style; user asks to "plot this data", "make a bar chart", "draw a radar chart", "用这个风格画图", "把我的数据画出来"; or user selects a style name from the style catalog (bar_paired_delta, bar_grouped_hatch, line_confidence_band, line_training_curve, line_loss_with_inset, scatter_tsne_cluster, scatter_broken_axis, radar_dual_series).

ichichuang Bundle

Direct Python Execution for Spreadsheet Tasks

ichichuang Bundle

The derived skill is complete and provides a meaningful enhancement:

carrotgamesstudios Bundle

Registry fallback entry point for the VidSeeds.ai MCP connector. Use the bundled domain skills for setup, efficiency, thumbnails, projects, analytics, local video, and publishing workflows.

diegojcn Skill

Master modern business analysis with AI-powered analytics, real-time dashboards, and data-driven insights. Build comprehensive KPI frameworks, predictive models, and strategic recommendations.

diegojcn Bundle

Master SQL query optimization, indexing strategies, and EXPLAIN analysis to dramatically improve database performance and eliminate slow queries. Use when debugging slow queries, designing database...