Schema migration strategies for evolving applications including adding new fields, backfilling data, removing deprecated fields, index migrations, and zero-downtime migration patterns

Patterns for building reactive apps including subscription management, optimistic updates, cache behavior, and paginated queries with cursor-based loading

Defining and validating database schemas with proper typing, index configuration, optional fields, unions, and migration strategies for schema changes

Implement features end-to-end with smart intent detection. Accepts natural language or plan paths. Auto-routes to appropriate workflow (fast, auto, parallel, code).

Same design, multiple cooks compete. Each implementation team creates their own plan from the shared design, then implements it. Natural variation emerges from independent planning decisions.

Use this skill when working with the cool-mysql library for Go. This skill provides comprehensive guidance on using cool-mysql's MySQL helper functions, including dual connection pools, named parameters, template syntax, caching strategies, and advanced query patterns. Apply when writing database code, optimizing queries, setting up caching, or migrating from database/sql.

Create Copilot-optimized task specifications for handoff between Claude and GitHub Copilot. Use when planning implementation tasks that Copilot will complete. Optimizes comment format, provides rich context, includes checklists and examples.

Professional copywriter for SaaS and startups. Expert in landing page copy, positioning, messaging, conversion optimization, and voice-of-customer research. Use when writing compelling copy for SaaS products, landing pages, marketing materials, or when you need help with product positioning and messaging strategy.

Generate CPCC-compliant software design specification documents (软件设计说明书) through multi-phase code analysis.

corder-test-generation

General-purpose patterns for reliable browser automation (selectors, waiting, scrolling, overlays, HITL).

>

Orchestrates on-demand generation of crate-specific skills based on project dependencies.

Guide for creating effective skills with specialized knowledge and workflows.

Type mapping reference for OpenAPI formats to TypeScript core types

Detailed development workflow patterns, checklists, and standards. Auto-loads for complex tasks, planning, debugging, testing, or when explicit patterns are needed. Contains session protocols, git conventions, security checklists, testing strategy, and communication standards.

Gap detection and knowledge mapping techniques for comparing BRD requirements against corpus coverage. Includes SurrealQL queries for analyzing sources, entities, and topic coverage, plus prioritization frameworks for research task generation.

Enforce mature commit hygiene and documentation standards for long-lived projects. Trigger this skill automatically in ANY project before ANY commit creation, whether prompted by human, agent, or another skill; always do this, to ensure changesets are clean, tests pass, commit messages are terse and insightful, and all committed content is timeless rather than dependent on circumstantial context to cohere or be useful. Targets senior/staff engineer standards - no cruft, no debug statements, no transient language, no obvious comments. Maintains README accuracy and prevents documentation bloat.

Find and visualize correlations between variables in datasets. Use for data exploration, feature selection, or identifying relationships between columns.

Expert guidance for Cosmian Key Management System including key generation, certificate management, encryption operations, access policies, and KMS CLI operations. Use this when working with Cosmian KMS, cryptographic key management, or Cosmian-specific PKI operations.

Clean Architecture and Cosmic Python guidance for well-tested, layered Python systems. Use for designing Python projects with layered architecture (models, adapters, services, entrypoints), enforcing Clean Code and SOLID principles, testing strategies (unit tests, BDD, Gherkin), CI/CD setup (pytest, tox, importlinter), and architectural decision-making (ADRs). Applicable to systems requiring strict boundary enforcement, clean separation of concerns, and comprehensive test coverage.

Scans Cosmos SDK blockchains for 9 consensus-critical vulnerabilities including non-determinism, incorrect signers, ABCI panics, and rounding errors. Use when auditing Cosmos chains or CosmWasm contracts.

Cost approach valuation for specialized infrastructure (transmission towers, telecom sites, substations) using replacement cost new less depreciation (physical, functional, external). Use for specialized asset valuation when market comparables are unavailable or incomplete. Provides RCN estimation, depreciation analysis across three categories, and market approach reconciliation.

See the main Budget Guardrails skill for comprehensive coverage of cost controls and governance.

This skill automates the creation of structured learning materials for coding test (CoTe) algorithm and data structure patterns. When a user requests learning materials for a specific pattern or conce

Multi-agent debate system. USE WHEN council, debate, perspectives, agents discuss. SkillSearch('council') for docs.

Spawn 5 Opus subagents with randomly-generated distinct personas to debate a problem from multiple angles. Use when exploring UX decisions, architecture choices, or any decision that benefits from diverse perspectives arguing creatively.

This skill provides guidance for counting tokens in datasets using specific tokenizers. It should be used when tasks involve tokenizing dataset content, filtering data by domain or category, and aggregating token counts. Common triggers include requests to count tokens in HuggingFace datasets, filter datasets by specific fields, or use particular tokenizers (e.g., Qwen, DeepSeek, GPT).

Generate a voice-matched cover letter for a specific job. Analyzes your writing samples and creates a personalized letter that sounds like you.

Advanced coverage analysis with actionable insights. Use to identify coverage gaps, suggest specific tests, track coverage trends, and highlight critical uncovered code. Essential for reaching 80%+ coverage target.

Ensure test coverage percentage is displayed in README.md for Next.js and Python projects following industry standards

Generate and analyze test coverage reports. Use to identify coverage gaps, track coverage trends, and ensure quality thresholds are met.

Integrate coverport into Go repositories with Tekton pipelines to enable e2e test coverage collection and upload to Codecov. Use this skill when users ask to integrate coverport, add e2e coverage tracking, or set up coverage instrumentation for Go projects.

This skill should be used when working with C++ projects, CMakeLists.txt, Ninja, clang-tidy, clang-format, GoogleTest, Catch2, or Modern C++ (C++11-23) language patterns. Provides comprehensive C++ ecosystem patterns and best practices.

C++ development guidelines for modern C++17/20 projects. Use when creating C++ classes, functions, headers, or working with CMake, templates, smart pointers, RAII, memory management, STL containers, multithreading, or C++ best practices. Covers project structure, modern C++ idioms, build systems, testing with GoogleTest/Catch2, and performance considerations.

C++20 specialist with expertise in modern C++ features, performance optimization, and system programming

This skill provides guidance for cracking 7z archive password hashes. It should be used when tasks involve extracting hashes from password-protected 7z archives, selecting appropriate cracking tools, and recovering passwords through dictionary or brute-force attacks. Applicable to password recovery, security testing, and CTF challenges involving encrypted 7z files.

>

Invoke CRASH_RECOVERY_SPECIALIST for session recovery after crashes or context loss. Creates checkpoints, reconstructs state, and generates handoff notes for seamless recovery.

Diseña y genera Skills para Antigravity con estructura predecible, reutilizable y lista para producción. Usar cuando se necesite crear un nuevo skill o convertir un proceso en procedimiento estándar.

Expert guidance for creating, writing, building, and refining Claude Code Skills. Use when working with SKILL.md files, authoring new skills, improving existing skills, or understanding skill structure, progressive disclosure, workflows, validation patterns, and XML formatting.

Expert guidance for creating, writing, and refining Claude Code Skills. Use when working with SKILL.md files, authoring new skills, improving existing skills, or understanding skill structure and best practices.

Create AGENTS.md files for project-specific inline rules. Use when adding small, project-specific instructions that should be committed in repos.

Create a new packet analyzer for Minecraft Bedrock logs. Generates template code, provides documentation links, and guides testing workflow.

Creates a Velero backup for specified namespaces or entire cluster with proper configuration and validation.

Guide for creating Claude Code plugins that bundle skills, agents, commands, hooks, and MCP servers for distribution. Covers plugin structure, marketplace.json format, installation, testing, and publishing. Use when the user wants to create plugins, distribute skills/agents, build marketplaces, or mentions creating/packaging/publishing plugins.

Create new Claude skills following Anthropic best practices. Use when building specialized agent capabilities, packaging procedural knowledge, or extending Claude's domain expertise.

>

You are an expert git workflow specialist. Execute the following workflow: