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Turn Innovation PRDs into concrete experiment plans with explicit hypotheses, metrics, and evaluation methods for RAG quality, agents, and automation outcomes.

Designs layout systems and responsive interfaces including grid systems, flexbox patterns, sidebar layouts, and responsive breakpoints. Use when structuring app layouts, building responsive designs, or creating complex page structures.

Design and launch a product survey and produce a Survey Pack (brief, questionnaire/instrument, analysis plan, launch checklist, reporting outline). Use for customer surveys, onboarding surveys, NPS/CSAT/PMF, cancellation/churn, and feedback surveys.

Design custom syntax elements with reuse-first approach for workflow orchestration. Use when user needs custom operators, checkpoints, or syntax patterns not available in core syntax.

Detects arbitrary write vulnerabilities by identifying unchecked array indexing and out-of-bounds memory writes. Use when analyzing memory write operations, pointer arithmetic, or investigating code execution vulnerabilities.

Detects incorrect use of memset() including wrong argument order, incorrect size calculations, and misunderstood behavior. Use when analyzing memory initialization, buffer clearing, or investigating memset() usage errors.

This skill provides automated assistance for performance regression detector tasks.

Detects unchecked return values of memory allocation functions like malloc, calloc, and realloc that can lead to null pointer dereferences. Use when analyzing memory allocation, error handling, or investigating null pointer risks.

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Detects SpecWeave context and provides workflow documentation for available commands. Use when learning SpecWeave commands, understanding available slash commands (/sw:increment, /sw:do, /sw:progress, /sw:done), or getting workflow guidance. Explains command syntax and recommended workflow patterns.

Production-grade API design patterns for REST, GraphQL, gRPC, and tRPC. Covers API architecture, OpenAPI/Swagger specs, versioning/deprecation, authentication/authorization, rate limiting, pagination, error models, contract testing, and developer documentation.

Autonomous development workflow. Generate detailed specs, plans, and tasks for autonomous agent execution with session memory tracking.

DEBUG mysteriously disappearing tasks using the taskDisappearanceLogger. Use when tasks vanish without user deletion, data seems to be lost, or you need to track what's modifying the task array. Provides comprehensive logging of all task array operations.

This skill should be used when the user asks to 'debug', 'fix bug', 'investigate error', 'why is it broken', 'trace root cause', 'find the bug', or needs systematic bug investigation and fixing with verification-driven methodology using ralph loops.

**Announce:** "Using dev-design (Phase 4) to propose implementation approaches and obtain user approval."

Unified execution engine for all development workflows. Progressive disclosure for phase execution, quick features, story completion, and scaffolding. Integrates with artifact-tracking and meatycapture-capture. Use when running /dev:execute-phase, /dev:quick-feature, /dev:implement-story, /dev:complete-user-story, or /dev:create-feature commands.

REQUIRED Phase 2 of /dev workflow after dev-brainstorm. This skill should be used when the user asks to 'explore the codebase', 'map architecture', 'find similar features', 'discover test infrastructure', 'trace execution paths', 'identify code patterns', or needs to understand WHERE code lives and HOW it works before implementation. Launches parallel explore agents and returns prioritized key files list.

ring:dev-feedback-loop

ring:dev-implementation

Per-task ralph loop pattern for implementation and debugging. One loop per task, not one loop per feature.

Analyzes codebase against standards and generates refactoring tasks for ring:dev-cycle.

AUTO-ACTIVATE when working in flow-state-refactor worktree or refactoring large components. MANDATORY port 5550 for refactor worktree. Extract Vue composables, split large files, reduce component size, baseline testing, zero regressions. Triggers on keywords refactor, composable, extract, split component, reduce file size, flow-state-refactor directory.

Read Game Design Document for design context

Start, stop, and manage the Vite development server for the Babylon.js game. Use when the user wants to run the dev server, test the game, check if server is running, or troubleshoot server issues.

**Goal:** Implement a story by executing its tasks/subtasks with comprehensive

Complete backlog implementation in feature-driven development. Read backlog requirements, reference implemented features, design approach, implement code, and document. Use when implementing features, changes, bug fixes, or improvements.

Perform git partial merges (checkout specific folders from another branch) and squash merges (clean single-commit integration) to selectively integrate changes across branches.

Capture and inspect specific screen regions (e.g., mobile simulators, app windows) using a background streaming process. Use for UI debugging and troubleshooting.

Create custom slash commands for popular AI agents (Claude Code, Codex, Gemini CLI). Use when user asks to create slash commands, custom commands, or reusable prompts for AI agent CLIs.

- [The Iron Law](#the-iron-law-of-tdd)

ring:dev-testing

Developer tools for The Fold - protocols (extensible dispatch), protocol bundles, refactoring toolkit (rename, move, dead code), and template DSL. Use when defining new protocols, refactoring code, or generating S-expressions.

This skill should be used when the user asks to 'verify completion', 'check that tests pass', 'confirm feature works', or REQUIRED Phase 7 of /dev workflow (final). Enforces fresh runtime evidence before claiming completion.

Create, modify, and maintain Vue 3 components with TypeScript and SCSS. Use when building Vue components, modifying .vue files, defining component props/emits, styling with SCSS, or documenting component APIs. Handles component architecture, type safety, styling patterns, and documentation.

将系统设计分解为可执行、可追踪的开发任务。

收集来自 UI/UX 审查、文档调研、外部参考等来源的改进建议，经用户确认后转化为开发需求。

<!-- PM-Skills | https://github.com/product-on-purpose/pm-skills | Apache 2.0 -->

developer-toolbox

Use when working on Claude Code plugins (creating, modifying, testing, releasing, or maintaining) - provides streamlined workflows, patterns, and examples for the complete plugin lifecycle

ANYTHING related to SolidWorks. Writes, modifies, and debugs C# code that interacts with SolidWorks. Use when working with .cs or .csproj files that (will) reference SolidWorks SDK, SolidWorks.Interop assemblies, COM interop with SolidWorks.

Use when you work with Swift code or Xcode tooling - establishes style guidelines, teaches you vital Swift techniques, and how to use Xcode build tools

Development standards and best practices. Use when development standards guidance is required.

File naming conventions, directory structure, and YAML frontmatter standards for CC-DevFlow. Consolidates shared conventions from all agents.

Enforces TDD order in TASKS.md - Tests MUST be marked complete before Implementation tasks. Blocks violations in real-time.

Generate devhub.toml configuration files and manage multi-project development environments. Use when setting up projects, creating service configs, starting/stopping services, checking status, or managing development workflows. Triggers on mentions of devhub, project setup, service management, or development environment configuration.

Knowledge base for the Cadre DevKit. Use when answering questions about the devkit structure, commands, skills, hooks, agents, or workflows.

Infrastructure, deployment, and operations automation