arcs

Harness-native ECC plugin for engineering teams - 63 agents, 251 skills, 79 legacy command shims, reusable hooks, rules, MCP conventions, and operator workflows for Claude Code plus adjacent agent harnesses

Core skills library for Claude Code: TDD, debugging, collaboration patterns, and proven techniques

Reliable automation, in-depth debugging, and performance analysis in Chrome using Chrome DevTools and Puppeteer

Intelligent prompt optimization: injects the right context at the right moment so Claude lands a better first output. Clarifies vague prompts with research-based questions, plus targeted nudges for approach selection, plan readability, workflow routing, background execution, subagent routing, output readability, user-decision questions, and plan-mode assessment

Superpowers Plus core skills library for Claude Code: planning, execution routing, TDD, debugging, and collaboration workflows

Plugin that includes the Figma MCP server and Skills for common workflows