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PostgreSQL database patterns for query optimization, schema design, indexing, and security. Based on Supabase best practices.

PostgreSQL performance optimization and best practices. Use when writing SQL queries, designing schemas, implementing indexes, or debugging database performance. Covers query optimization, connection management, schema design, and RLS.

Run PostgreSQL queries for testing, debugging, and performance analysis. Use when you need to query the database directly, run EXPLAIN ANALYZE, compare query results, or test SQL optimizations. Always uses read-only connections unless explicitly directed otherwise.

Design a PostgreSQL-specific schema. Covers best-practices, data types, indexing, constraints, performance patterns, and advanced features

Comprehensive guide for PostgreSQL psql - the interactive terminal client for PostgreSQL. Use when connecting to PostgreSQL databases, executing queries, managing databases/tables, configuring connection options, formatting output, writing scripts, managing transactions, and

Consult PostgreSQL's parser and grammar (gram.y) to understand SQL syntax, DDL statement structure, and parsing rules when implementing pgschema features

Design a PostgreSQL-specific schema. Covers best-practices, data types, indexing, constraints, performance patterns, and advanced features

PostHog analytics, event tracking, feature flags, dashboards

Configure PostHog CI/CD integration with GitHub Actions and testing.\nUse when setting up automated testing, configuring CI pipelines,\nor integrating PostHog tests into your build process.\nTrigger with phrases like \

Diagnose and fix PostHog common errors and exceptions.\nUse when encountering PostHog errors, debugging failed requests,\nor troubleshooting integration issues.\nTrigger with phrases like \

Execute PostHog primary workflow: Core Workflow A.\nUse when implementing primary use case,\nbuilding main features, or core integration tasks.\nTrigger with phrases like \

Execute PostHog secondary workflow: Core Workflow B.\nUse when implementing secondary use case,\nor complementing primary workflow.\nTrigger with phrases like \

Optimize PostHog costs through tier selection, sampling, and usage monitoring.\nUse when analyzing PostHog billing, reducing API costs,\nor implementing usage monitoring and budget alerts.\nTrigger with phrases like \

Collect PostHog debug evidence for support tickets and troubleshooting.\nUse when encountering persistent issues, preparing support tickets,\nor collecting diagnostic information for PostHog problems.\nTrigger with phrases like \

Deploy PostHog integrations to Vercel, Fly.io, and Cloud Run platforms.\nUse when deploying PostHog-powered applications to production,\nconfiguring platform-specific secrets, or setting up deployment pipelines.\nTrigger with phrases like \

Configure PostHog enterprise SSO, role-based access control, and organization management.\nUse when implementing SSO integration, configuring role-based permissions,\nor setting up organization-level controls for PostHog.\nTrigger with phrases like \

Create a minimal working PostHog example.\nUse when starting a new PostHog integration, testing your setup,\nor learning basic PostHog API patterns.\nTrigger with phrases like \

Execute PostHog incident response procedures with triage, mitigation, and postmortem.\nUse when responding to PostHog-related outages, investigating errors,\nor running post-incident reviews for PostHog integration failures.\nTrigger with phrases like \

Install and configure PostHog SDK/CLI authentication.\nUse when setting up a new PostHog integration, configuring API keys,\nor initializing PostHog in your project.\nTrigger with phrases like \

Configure PostHog local development with hot reload and testing.\nUse when setting up a development environment, configuring test workflows,\nor establishing a fast iteration cycle with PostHog.\nTrigger with phrases like \

Execute PostHog major re-architecture and migration strategies with strangler fig pattern.\nUse when migrating to or from PostHog, performing major version upgrades,\nor re-platforming existing integrations to PostHog.\nTrigger with phrases like \

Configure PostHog across development, staging, and production environments.\nUse when setting up multi-environment deployments, configuring per-environment secrets,\nor implementing environment-specific PostHog configurations.\nTrigger with phrases like \

Set up comprehensive observability for PostHog integrations with metrics, traces, and alerts.\nUse when implementing monitoring for PostHog operations, setting up dashboards,\nor configuring alerting for PostHog integration health.\nTrigger with phrases like \

Optimize PostHog API performance with caching, batching, and connection pooling.\nUse when experiencing slow API responses, implementing caching strategies,\nor optimizing request throughput for PostHog integrations.\nTrigger with phrases like \

Implement PostHog rate limiting, backoff, and idempotency patterns.\nUse when handling rate limit errors, implementing retry logic,\nor optimizing API request throughput for PostHog.\nTrigger with phrases like \

Apply PostHog security best practices for secrets and access control.\nUse when securing API keys, implementing least privilege access,\nor auditing PostHog security configuration.\nTrigger with phrases like \

Implement PostHog webhook signature validation and event handling.\nUse when setting up webhook endpoints, implementing signature verification,\nor handling PostHog event notifications securely.\nTrigger with phrases like \

Send transactional emails with high deliverability via Postmark API. Manage templates, track bounces, and view analytics.

/em -postmortem — Honest Analysis of What Went Wrong

Write effective blameless postmortems with root cause analysis, timelines, and action items. Use when conducting incident reviews, writing postmortem documents, or improving incident response processes.

Power BI semantic modeling assistant for building optimized data models. Use when working with Power BI semantic models, creating measures, designing star schemas, configuring relationships, implementing RLS, or optimizing model performance. Triggers on queries about DAX

Calculating powerlifting scores to determine the performance of lifters across different weight classes.

PowerShell Windows patterns. Critical pitfalls, operator syntax, error handling.

PPT 演示文稿创建、编辑和分析。当需要处理演示文稿时使用，支持：(1) 创建新演示文稿，(2) 修改和编辑内容，(3) 处理布局和样式，(4) 添加图表和表格

Create professional slide decks from topics or documents. Generates structured content with data-driven charts, speaker notes, and complete PPTX files. Applies persuasive storytelling principles (Pyramid Principle, assertion-evidence). Supports multiple formats (Marp,

Presentation creation, editing, and analysis. When Claude needs to work with presentations (.pptx files) for: (1) Creating new presentations, (2) Modifying or editing content, (3) Working with layouts, (4) Adding comments or speaker notes, or any other presentation tasks

Create, edit, and manipulate PowerPoint presentations programmatically using python-pptx

Create research posters using HTML/CSS that can be exported to PDF or PPTX. Use this skill ONLY when the user explicitly requests PowerPoint/PPTX poster format. For standard research posters, use latex-posters instead. This skill provides modern web-based poster design with

Monitor PR CI pipeline, auto-fix issues, and loop until all checks pass

Use this skill when asked to create a pull request (PR). It ensures all PRs follow the repository's established templates and standards.

Use when creating animated demos (GIFs) for pull requests or documentation. Covers terminal recording with asciinema and conversion to GIF/SVG for GitHub embedding.

Update a GitHub PR description with a summary of changes

Create a PR title and draft description after substantive code changes are finished. Trigger when wrapping up a moderate-or-larger change (runtime code, tests, build config, docs with behavior impact) and you need the PR-ready summary block with change summary plus PR draft text.

Finalizes any PR for merge by verifying title/description match implementation AND performing code review for best practices. Use when asked to \

Submit inline review comments to GitHub Pull Requests using the GitHub CLI, with support for inline code suggestions.

Review PyTorch pull requests for code quality, test coverage, security, and backward compatibility. Use when reviewing PRs, when asked to review code changes, or when the user mentions \

PR Review Expert

Downloads and tests Aspire CLI from a PR build, verifies version, and runs test scenarios based on PR changes. Use this when asked to test a pull request.