Best Data Engineering Skills for Claude Code

prompt-engineer

Popular

Free

Professional prompt engineering patterns for building robust, secure, and production-ready LLM applications.

Give AI agents the ability to trace decision chains, reconstruct causal sequences, and reason over complex event timelines spanning months or years.

Architects the right retrieval strategy for every query — teaching your agent when to use RAG, a knowledge graph, or a temporal index instead of defaulting to vector search for everything.

Query Web3 and on-chain GraphQL endpoints using natural language via the Model Context Protocol.

Builds the organizational memory schema your AI agent needs to answer why — capturing decision provenance, causal chains, and event context that embedding-based retrieval permanently discards.

Expert AI guidance for ISO-compliant cleanroom design, HVAC filtration setup, and controlled environment installation.

A high-performance scraping engine with Playwright stealth, proxy rotation, and anti-bot bypass capabilities.

PII & Data-Leak Scanner

$15

or 75 cr

Scan your schemas, seed data, config, and logs for personal data before it leaks. Detects PII-indicating column and key names (email, ssn, phone, address) across SQL, CSV, and JSON, plus PII in the data itself: email addresses, SSN-like numbers, credit-card-like numbers, phone numbers, and PII written into log files. Each finding is flagged with its location and a GDPR-style review note. Heuristic by design: it surfaces what to review, not a compliance guarantee.

Track GitHub repository growth trends, star velocity, and commit activity with historical digests and benchmarking.

Professional Vedic astrology reports with deterministic chart generation, Dasha analysis, and animated HTML output.

Quantitative stock position analysis using probability-weighted bull, base, and bear scenarios.

Real-time market data, institutional sentiment, and portfolio analysis for US, HK, and CN markets.

Catches dangerous database migrations before they hit production. Reviews schema changes for locking hazards, data loss, missing rollbacks, and index issues across PostgreSQL, MySQL, and SQLite.

Pipeline Reporter (Pro)

$19

or 95 cr

Turn a CRM export or live HubSpot/Salesforce/Pipedrive sync into an executive-ready pipeline report: a 12-month weighted forecast with three scenarios, win/loss themes pulled from deal notes, data-quality flags, and a board-ready PDF. Can run weekly and email itself to stakeholders.

Professional sales execution and RevOps toolkit for lead qualification, pipeline coaching, and account briefing.

A quantitative finance toolkit for real-time market data, technical analysis, and portfolio risk management.

Custom Data RAG Chatbot Builder

$5

or 25 cr

Build a full-stack AI chatbot trained on your own documents across any industry — legal, healthcare, e-commerce, HR, finance, real estate, insurance, education, cybersecurity, government, and more.

Audit and fix your website's visibility for AI agents like ChatGPT, Claude, and Perplexity.

Transform raw KPI data into executive-ready client reports with automated summaries and strategic recommendations.

Solo SaaS Architect

$5

or 25 cr

Automatically builds complete, launch-ready SaaS websites, databases, and secure user dashboards, with security audits at each step.

Turn live Agensi marketplace signals and high-signal user data into actionable product development intelligence.

Secure, zero-knowledge encrypted vault for agents to store and manage sensitive documents and digital legacy assets.

Expert Oracle PL/SQL architect for writing, refactoring, and performance-tuning enterprise database logic.

Deploy high-energy, single-file websites for gyms and studios with integrated HealthClub SEO schema.

Fully automated end-to-end migration of Spotify playlists to YouTube Music with smart track matching.

Territory Optimizer

$9

or 45 cr

Turn a raw account CSV into balanced sales territories: assigns accounts by region, industry, workload, and ARR, flags orphaned high-value accounts, and hands managers specific rebalancing moves. Compares region-based vs industry-based models so coverage is even instead of cherry-picked.

SQL Migration Safety Doctor

$12

or 60 cr

Catch the dangerous migration before it locks or wrecks your production database. Scans SQL migration files for destructive and risky operations: DROP and TRUNCATE, drops without IF EXISTS, lossy column-type changes, NOT NULL added without a default, DELETE or UPDATE with no WHERE, non-concurrent index builds, dropped constraints, renames, and data backfills mixed into schema changes. Each finding is ranked by severity with a safer rewrite. Postgres, MySQL, and SQLite.

Adaptive GDPR, CCPA, security, and AI compliance audit with severity-graded findings and law citations

Rep Scorecard

$12

or 60 cr

Turn CRM exports into sales rep scorecards: 0-100 performance scores across activity, pipeline, conversion, and forecast accuracy, plus evidence-based coaching notes for weekly 1-on-1s. One review-ready report instead of a spreadsheet weekend.

Forecast Confidence

$12

or 60 cr

Run a 10,000-iteration Monte Carlo forecast on your pipeline CSV to get P50/P70/P90 revenue confidence intervals, an ASCII distribution histogram, and what-if scenarios for slipped deal dates. Answers 'how likely are we to hit the number?' instead of a flat weighted-pipeline guess.

Generate realistic JSON or CSV test data from plain-English schema descriptions with up to 1,000 rows.

Structureert de eerste juridische respons, risicoanalyse en 72-uurs meldplicht bij GDPR-datalekken.

Automated sentiment analysis and batch text classification using Hugging Face's Inference API.

Analyze and build V85 harness racing systems end-to-end — from data to placed coupon. BankID confirmation required.

Code Migration Planner

$9.99

or 50 cr

Architect safe, staged code migrations with zero-downtime patterns and automated rollback gates.

Turn your photos and shopping order screenshots into a structured, searchable JSON wardrobe database with AI vision and automated linting.

A safe, expert-level database troubleshooter for fixing migrations, performance issues, and schema drift.

Schema Markup Generator

$8.99

or 45 cr

Generate valid JSON-LD entity graphs and rich result markup tailored for Google Search eligibility.

Automatically transform JSON files or raw strings into production-ready TypeScript interfaces or Python dataclasses.

Source-Grounded Research Brief Architect for AI Agents

$50

or 250 cr

Creates trustworthy research briefs by verifying claims, grading sources, separating facts from assumptions, identifying weak evidence, and producing citation-ready outputs.

PrivacyShield

$19

or 95 cr

Protect sensitive data before it reaches an AI model and automatically restore it in the final response.

💸 Revenue Leak Detector

$7

or 35 cr

Identify sales funnel drop-offs, calculate lost revenue in EUR, and generate prioritized optimization action plans.

Fully automated playlist migration between Spotify, Apple Music, Tidal, and YouTube Music.

👣 5. Customer Journey Analyzer

$7

or 35 cr

Transform CRM and analytics data into prioritized customer journey maps with emotional heatmaps and ROI-driven actions.

Automated, API-driven playlist migration from Spotify, Tidal, and YouTube Music to Apple Music with artist validation.

SQL Report Builder for Non-Technical Managers

$50

or 250 cr

Turns plain-English business questions into safe read-only SQL reporting plans, required table/field maps, readable SQL drafts, validation checks, and manager-friendly summaries.

robot-to-playwright-converter

Free

Convert Robot Framework tests to idiomatic Playwright TypeScript with automated keyword and locator mapping.

Automated context management and cross-session memory organization for long-term AI-human collaboration.

Automate SEO audits, AI search visibility (AEO) analysis, JSON-LD generation, and professional client proposals.

Idiomatic code translation between Python, TypeScript, and Go that preserves logic and adapts language-specific patterns.

Design, debug, and optimize production RAG systems with expert architecture, hybrid search, and grounding strategies.

Local, SQLite-backed cross-session memory for agents to store and retrieve lessons, decisions, and facts via FTS5.

Consent-Safe B2B Outbound SDR Architect for AI Agents

$50

or 250 cr

Builds compliant B2B outbound SDR workflows that identify target accounts, analyze buying signals, draft personalized outreach, handle objections, and prepare qualified meeting handoffs.

Deconstruct complex problems using physics-based reasoning and "Idiot Index" calculations to find the theoretical floor.

Generate professional, formula-driven DMAIC/DFSS artifacts, Excel tools, and interactive Lean Six Sigma visualizations.

legacy-system-archaeologist

Free

Reconstruct architecture and map risks in inherited legacy codebases with evidence-based auditing and migration plans.

Turn messy bank statements into clean, categorized business expense tables and formula-driven Excel workbooks.

Supabase RLS Doctor

$19

or 95 cr

Audit your Supabase project for the row-level-security mistakes that quietly expose data: tables without RLS, policies that resolve to true, leaked service-role keys, missing auth.uid() checks, open storage buckets, overbroad grants, and migration drift. A local, read-only scan plus a full review checklist, each finding with severity, evidence, and a fix. No database changes without confirmation.

Generate structured architectural technical specifications and draft 'lastenboeken' from project descriptions.

Deterministic CSV profiling with automated data quality audits, interactive Plotly reports, and Pandas fix snippets.

Generate production-ready Lean Six Sigma charts, SPC control plots, VSMs, and analytical templates.

Automate data profiling with type detection, statistical analysis, and quality flags saved to a Markdown report.

🔁 Model Migration Checker

$15

or 75 cr

Find the model-version coupling that breaks when you swap LLMs. Flags hardcoded model names and versions, deprecated or renamed parameters (the max_tokens to max_completion_tokens class of change), hardcoded token and context-window limits, response-format parsing tied to one model's output, tool-schema format coupling between providers, and hardcoded per-token cost constants. The patterns load from an editable model-rules table you update as new models ship.

openhop

Free

Generate animated, step-by-step data flow diagrams for architectures, code paths, and user journeys.

Production-ready Resend integration with tracked outbox, open/click analytics, and per-archetype stats.

A full-stack LBS skill for POI search, route planning, travel itinerary automation, and heatmap visualization.

Classify any text or file into custom categories using Hugging Face's BART-MNLI model with no training required.

A safety-first framework for professional database modeling, zero-downtime migrations, and risk-aware schema evolution.

Collection Gap — DSO, CEI & AR Metrics Workbook from Any Invoice Export

$29

or 145 cr

Most AR teams track DSO. Almost none of them know why it moved. Upload your AR export. Get DSO, Collection Gap, CEI, aging breakdowns, and a prioritized follow-up queue — delivered as a clean six-tab Excel workbook, every week, without a data analyst in sight. Works with QuickBooks, Sage Intacct, NetSuite, Xero, Dynamics, FreshBooks, or any custom CSV. One setup conversation. Hands-free from there.

Audit SQL and ORM queries for security vulnerabilities, N+1 performance issues, and indexing anti-patterns.

Fully automate Spotify to Tidal playlist migrations with smart track matching and multi-language UI support.

Deploy appetizing, local-SEO-optimized landing pages for bakeries, butchers, and specialty food shops.

review-to-marketing-insight-extractor

$6

or 30 cr

Turn raw customer reviews into evidence-grounded marketing reports, customer language banks, and JSON insights.

Generate Python bpy scripts, add-ons, and Geometry Nodes code fully compatible with Blender 5.0's breaking API changes.

Convert local keyword and competitor data into prioritized, evidence-based SEO action plans.

Scaffold a multi-model 6-step pipeline to automatically turn prospect URLs into live, branded demo websites.

Expert guidance for Dioxus 0.7.3 and Axum 0.8 fullstack Rust development, featuring Signals and SSR patterns.

dbt Test & Quality Auditor

$15

or 75 cr

Audit your dbt project for the test and documentation gaps that let bad data ship. Flags models with no unique or not_null tests, sources missing freshness config or tests, likely keys without a not_null test, models missing descriptions, SELECT * in models, and raw table references that should use ref() or source(). Each finding comes with a suggested tests: YAML snippet to drop into schema.yml.

Agent Memory Audit & Hygiene Kit

$16

or 80 cr

Adversarial memory audit to remove PII, stale facts, and injected instructions from agent storage.

Manage multiple Postgres versions and extensions on one Linux box with a port registry and unified backups.

Generate structured document control packs, metadata schemas, and project registries from intake data.

Daily backup-and-restore for a self-hosted Postgres app or Pi: a custom-format pg_dump, app-data tar, config copy, keep-window rotation, and a low-disk Telegram alert, plus a confirm-to-proceed restore, systemd timer, and idempotent install.

Standardized accessibility descriptions and verified analysis for electronic, hydraulic, and pneumatic schematics.

🎯 Lead Qualification Builder

$7

or 35 cr

An AI-powered lead scoring engine that identifies high-intent prospects and generates prioritized sales action plans.

Connect your agent to the Steam Web API to fetch player data, game libraries, and achievement statistics.

Master the "Trinity" of Belgian Search: SEO, AEO, and GEO copy for SMEs to rank on Google and get cited by AI.

Automated political budget analysis: detects shifts, flags vague spending, and drafts amendments with funding offsets.

Detect and fix the 9 most expensive PySpark anti-patterns to slash your Spark compute costs.

Pipeline Reporter

Free

Turn a messy CRM CSV export into a clean sales pipeline report: weighted forecast by stage, rep performance, and a close-date outlook, with column headers auto-mapped (ARR to Amount, AE to Owner) so inconsistent exports still work. The single-report version; for 12-month forecasting, CRM sync, and PDF, see Pipeline Reporter Pro.

Audit Snowflake config and SQL against 2026 pricing to find waste and generate instant-fix ALTER statements.

Turn your AI agent into a digital librarian that builds and audits a persistent markdown knowledge base.

Apply the 5-step engineering algorithm to ruthlessly delete, simplify, and accelerate any process or codebase.

Chart & Statistics Integrity Gate — Catch Misleading Visuals & Unsound Claims

$12

or 60 cr

An adversarial gate that audits any chart, data summary, or statistic for misleading visuals and unsound inference, then returns one PASS/REVISE/FAIL verdict.

Prevent data leaks with auto-injected SQLAlchemy tenant scoping and Cloudflare Access auth for FastAPI SaaS apps.