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Expert data science for statistical modeling, experimentation, ML deployment,

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Sample skill for testing the skill-tester validation pipeline. Demonstrates proper skill structure with scripts, references, and assets.

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Why-What-Acceptance backlog format that connects every work item to strategic business objectives.

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Semantically search past Claude Code sessions to recall commands, solutions, and context from prior conversations. TRIGGER on 'remember when', 'last time', 'we did this before', 'how did we', or /woz-recall.

Update the WOZCODE plugin to the latest version.

Operate and maintain the local MCP server for this repository. Use for MCP tool updates, policy-guard changes, host configuration, and MCP runtime troubleshooting.

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Build confidential dApps on Solana using Inco Lightning encryption — encrypted balances, private transfers, and attested decryption

Complete guide for MagicBlock Ephemeral Rollups - high-performance Solana execution with sub-10ms latency, gasless transactions, and Solana Plugins. Use when building real-time games, high-frequency trading, or any application requiring ultra-low latency on Solana.

Complete Surfpool development environment for Solana - drop-in replacement for solana-test-validator with mainnet forking, cheatcodes, Infrastructure as Code, and Surfpool Studio. The fastest way to develop and test Solana programs.

Complete Switchboard Oracle Protocol SDK for Solana - the permissionless oracle solution for price feeds, on-demand data, VRF randomness, and real-time streaming via Surge. Covers TypeScript SDK, Rust integration, Oracle Quotes, and all Switchboard tools.

testing-dbt-models

Analyze paid advertising performance across channels and recommend budget reallocation to maximize ROAS and minimize CAC. Use when: planning quarterly ad budget allocation, diagnosing underperforming ad channels, deciding whether to scale spend on a channel, calculating marginal ROI across Google Ads, Meta, LinkedIn, or TikTok, rebalancing media mix after performance shifts, or setting up a test-and-scale framework for new channels.

Calculate A/B test statistical significance. Use when: determining if test results are significant; calculating required sample size; estimating test duration; analyzing conversion experiments; making data-driven decisions

Capture authentic customer testimonials through guided self-recording workflows, from outreach and briefing to recording and publishing. Use when: Building social proof for marketing campaigns; Creating customer success stories; Gathering testimonials for website and ads; Producing case study videos; Collecting user-generated content

Create distinctive brands that customers choose because they believe there's no substitute, using Marty Neumeier's Brand Gap and Zag frameworks Use when: **Building a new brand** from scratch (startup, product, service); **Repositioning an existing brand** that's become commoditized; **Defining brand differentiation** when competitors all look the same; **Creating brand guidelines** for consistent execution; **Evaluating brand strength** through structured testing

> Master Eugene Schwartz's 5 Stages of Awareness framework from "Breakthrough Advertising" (1966) to write copy that meets prospects where they are.