开发技能

Manage multiple apps and shared packages in one repository. Analyze dependencies and change impacts, limit builds and tests to affected packages, configure caching, and plan repository consolidation while preserving Git history.

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• Checking which apps a shared package change affects
• Limiting CI builds and tests to affected packages
• Combining repositories while preserving Git history

Turn plain language requirements into SQL, investigate slow queries, document database structures, and prepare migration templates with rollback plans. Support everyday database development and ORM use, where libraries connect application code to database tables.

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• Writing SQL for reports and data retrieval
• Investigating slow queries and repeated database calls
• Preparing schema changes and rollback plans

Turn an OpenAPI specification into starter code for an MCP server, which connects AI agents to API tools. Support Python or TypeScript implementations, validate tool definitions, and plan changes that preserve compatibility.

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• Exposing an existing REST API to an AI agent
• Creating a Python or TypeScript MCP server scaffold
• Checking tool definitions before integration tests

Scan a codebase for technical debt—issues that make future maintenance harder—and prioritize fixes using business impact and effort. Generate a ranked backlog, sprint allocations, and trend reports to assess cleanup work over time.

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• Assess technical debt across a codebase
• Prioritize refactoring for the next sprint
• Compare debt levels before and after cleanup

Turn a Markdown code review into a single HTML file with code changes beside severity-labeled comments. Readers can jump to findings, inspect line numbers, and identify the named human reviewer.

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• Turning a lengthy Markdown code review into HTML
• Reading code changes beside review comments
• Jumping directly to findings by severity

Review GitHub pull requests and GitLab merge requests for security, test gaps, compatibility, and performance risks. Trace affected code and services, then produce a prioritized report with suggested fixes and a structured review checklist.

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• Reviewing shared libraries and API changes before merging
• Organizing feedback on large pull requests
• Checking authentication and payment code changes

Investigate slow Node.js, Python, and Go applications by measuring CPU use, memory, database queries, and data transfer. Identify bottlenecks, inspect frontend bundle sizes, run load tests, and compare measurements before and after changes to verify improvements.

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• Investigating slow API responses
• Tracking memory growth and suspected leaks
• Analyzing bundle growth after adding dependencies

Reviews code changes through documented engineering and product principles associated with named practitioners. Combines two engineering perspectives and one product perspective to produce findings with severity, attribution confidence, and technical reasoning for architecture, performance, or user experience issues.

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• Reviewing architecture or public API changes
• Checking user experience alongside code correctness
• Strengthening a pull request before submission

Find the right skill among 37 advanced engineering options for architecture, development, automation, and operations. The index maps tasks to individual skills, helping you choose which instructions to load for a specific job.

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• Finding a skill for agent or RAG design
• Choosing database design and query optimization skills
• Finding deployment automation and monitoring skills

Build automated emails for account registration, invoices, and notifications, from reusable templates to delivery service integration. Includes local previews, multilingual content, dark mode styling, and checks for delivery issues and tracking.

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• Add registration and password reset emails
• Migrate to another email delivery provider
• Add multilingual content and dark mode

Turn an electronics or IoT idea into a working breadboard prototype. Get board and software recommendations, a plan for viewing sensor readings, and time and cost ranges tailored to experience, budget, and location.

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• Choosing a board and development tools for a first electronics project
• Planning phone access to sensor readings and alerts
• Estimating prototype costs and build time

Manage parallel feature development with Git worktrees, separate working folders for different branches. Assign distinct ports, copy environment files, optionally install dependencies, and check for uncommitted changes and merged branches before removing outdated worktrees.

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• Develop several feature branches at the same time
• Prepare a separate workspace for an urgent hotfix
• Give each AI agent its own branch and working folder

Design and review system architecture, compare databases and structural approaches, and document technical decisions. Included tools generate architecture diagrams, inspect dependencies, and assess project structure to identify circular relationships, excessive coupling, and opportunities for improvement.

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• Comparing monolith and microservices approaches
• Choosing a database for project requirements
• Generating diagrams from an existing project

Find the engineering specialist skill that matches a task, from system design and frontend development to testing, security, and AI. This index explains each area of focus and directs agents to load the relevant skill’s instructions.

中文简介正在准备中。当前显示英语简介。

• Choosing a skill for system design or implementation
• Finding guidance for testing and code review
• Locating specialists for AI and data work

Turn Git history into release notes and recommend the next version based on commit types and breaking changes. Check commit formatting, filter changes by package, and generate Markdown or JSON for automated release workflows.

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• Prepare release notes before publishing a version
• Determine the next version from commit history
• Check commit message formats before merging

Design and build backend services with API scaffolding, database migrations, authentication reviews, and load testing. Generate route handlers from OpenAPI specifications, identify PostgreSQL optimization opportunities, and compare architecture choices against traffic, data sensitivity, and reliability requirements.

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• Generating API route handlers from OpenAPI
• Investigating slow PostgreSQL queries
• Reviewing authentication and input validation

Review REST API specifications with automated checks for inconsistent conventions and breaking changes—changes that disrupt existing clients. Get a design grade, improvement recommendations, and tool reports to support release reviews and API migrations.

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• Reviewing a pull request that changes API endpoints
• Checking compatibility before an API version migration
• Establishing shared API design standards

Choose a web application stack, generate a starter project, and assess existing code quality. Uses team size, release frequency, audience, and budget to guide recommendations, with reports covering security, complexity, dependencies, and prioritized improvements.

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• Generating a starter project for a web application
• Choosing a technology stack within team and budget constraints
• Reviewing code security and complexity

Repair an entire broken feature by mapping its files and dependencies, checking configuration and logs, and confirming root causes. Apply fixes in sequence, then test the feature and the code that uses it.

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• Repairing a broken feature from start to finish
• Investigating imports and configuration together
• Finding root causes across multiple modules

Integrate Stripe payments and subscriptions into web applications, including trials, prorated plan changes, usage billing, customer portals, and invoices. Follow implementation patterns and local testing steps, with webhook signature checks and duplicate event handling to support reliable billing updates.

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• Add subscription checkout with a free trial
• Implement plan changes with a proration preview
• Add usage-based billing to a subscription product

Design relational database tables from requirements and generate relationship diagrams, migration code, type definitions, and test data. Also covers indexes, audit history, and row-level access rules for applications serving multiple organizations.

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• Designing tables for a new feature
• Reviewing table relationships and indexes
• Separating data by organization

Compares frameworks, libraries, and cloud providers using weighted criteria. Helps teams choose technologies with estimates of five-year total ownership costs, security assessments, community health indicators, and migration effort, risks, and timelines.

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• Comparing frameworks for a new project
• Estimating five-year technology ownership costs
• Assessing migration effort and risks

Plan, review, and retire feature flags, switches that control feature availability. Includes tools to identify aging flags, generate phased release schedules, and check that documentation records ownership and emergency shutdown procedures.

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• Plan a phased release for a new feature
• Identify old flags for cleanup
• Audit emergency shutdown documentation

Review database structures and relationships, identify design issues, and generate relationship diagrams. The skill recommends indexes, which help queries find data efficiently, and prepares migration steps with validation and rollback planning.

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• Reviewing table structures and relationships
• Improving indexes for frequent queries
• Planning database changes without downtime