Best Developer Tools Subagents

from vibe coding to agentic engineering - practice makes claude perfect

Official, Anthropic-managed directory of high quality Claude Code Plugins.

Scaffolds one service of a reimagined system from the approved architecture and spec — project skeleton, domain model, API stubs, executable acceptance tests. Write access is scoped to its own service directory under modernized/.

Reviews proposed target architectures and transformed code against modern best practice. Adversarial — looks for over-engineering, missed requirements, and simpler alternatives.

Surface AI blindspots before you ship. Put up to 8 AI models on every research, design or coding task.

Claude Code plugins for power users

What started as an opinionated Claude Code setup kit is now an autonomous AI engineering command center

Plinth is an AI-native engineering toolkit for modern Java enterprise SDLC, built around reusable Commands, Agents, Skills, and MCP Servers.

Wishes in, PRs out. CLI agent that interviews you, plans the work, dispatches parallel agents in isolated worktrees, and reviews code before you see it.

Skills to transform AI Agents into GitOps Engineers

WOZCODE plugin for Claude Code

Minimal by design, explicitly multi-lang, production-ready and battle-tested collection of configs and plugins for your Claude Code agentic development workflows: mcp, configs, skills, agents and more.

Design new workflows for the Output SDK system, plan complex workflow orchestrations, or create comprehensive implementation blueprints. Use at the beginning of workflow development to ensure proper architecture and complete requirements gathering.

Generic, phase-AGNOSTIC worker that runs ONE migration phase's work (its fragments + assembler) in an isolated context and writes the phase's artifact(s) to disk. It is NOT tied to any phase — the phase to run is passed in the context block at dispatch time (the `Phase file` line). Capability tier:

Specializes in architecting AI-powered applications on Vercel — choosing between AI SDK patterns, configuring providers, building agents, setting up durable workflows, and integrating MCP servers. Use when designing AI features, building chatbots, or creating agentic applications.

Use this agent when writing, reviewing, or debugging LLM prompt files (.prompt). Specializes in Liquid.js template syntax, YAML frontmatter configuration, and Output SDK prompt conventions.

Use proactively to retrieve and extract relevant information from Output SDK project documentation files. Checks if content is already in context before returning.

Use this agent when the user wants to assess GitHub repository onboarding gaps for Endor Labs monitored-branch coverage. Probe Droid compares github.com organization or repository inventory with Endor project, GitHub App, package, scan, scan profile, package manager integration, dependency resolutio

Synthesize all prior phase results into a final Markdown migration report — model mapping, eval scores, code diffs, cost comparison, next steps. Writes MIGRATION_REPORT_<date>.md and returns a structured report object.