Backend expert pool for Hono/Express with LLM multi-provider support
npx claudepluginhub justn-hyeok/harness-for-yall --plugin be-expertsAPI design, resource modeling, route structure, middleware layering, and error strategy for Hono/Express backends
Hono and Express implementation — route handlers, middleware, dependency injection patterns
Multi-provider LLM API adapters — streaming, token counting, cost tracking, rate limiting, graceful fallback
Circuit breakers, exponential backoff retries, timeouts, graceful degradation, health checks, bulkhead isolation
Authentication, authorization, secret management, CORS, audit logging, OWASP Top 10 defense
Vitest + Supertest HTTP contract tests, provider mocking, fixture management, integration tests
Zod schemas, OpenAPI generation, RFC 9457 error responses, input sanitization
Create a REST/RPC endpoint with Zod validation, OpenAPI spec, and RFC 9457 error handling
LLM provider adapter layer with streaming, multi-model parallel execution, cost tracking, and graceful fallback
Scaffold an MCP server with stdio/HTTP transports, resource/tool/prompt definitions with Zod schemas
Add structured logging (pino), Prometheus metrics (prom-client), and distributed tracing (OpenTelemetry)
Multi-stage stateful orchestration pattern with checkpoints, handoff artifacts, and per-stage retry policies
Multi-agent harness for Claude Code: 26 agents, 15 skills, 5 teams.
A pre-configured set of Claude Code agents organized into 5 specialized teams. Each team uses a different multi-agent orchestration pattern optimized for its purpose.
| Plugin | Pattern | Agents | Skills | What it does |
|---|---|---|---|---|
dev-pipeline | Pipeline | 5 | 1 | Full feature dev: planner → FE+BE parallel → reviewer gate → QA |
review-pipeline | Fan-out / Fan-in | 5 | 1 | Code review: 3 parallel screeners → moderator → judge (SARIF output) |
fe-experts | Expert Pool | 5 | 5 | Frontend: architect → implementer / styler → perf + tester |
be-experts | Pipeline + Expert Pool | 7 | 5 | Backend: architect → impl + validator → resilience / provider / security → tester |
explore-team | Hierarchical Delegation | 4 | 3 | Codebase exploration: scout(opus) → hypothesizer → evidence → synthesizer |
# All plugins
npx harness-for-yall
# Pick specific teams
npx harness-for-yall fe-experts be-experts
# Preview first
npx harness-for-yall --dry-run
# Overwrite existing
npx harness-for-yall --force
Copies agents/skills to ~/.claude/. Zero dependencies.
Inside Claude Code:
/plugin marketplace add justn-hyeok/harness-for-yall
Then install what you need:
/plugin install dev-pipeline@justn-harness
/plugin install review-pipeline@justn-harness
/plugin install fe-experts@justn-harness
/plugin install be-experts@justn-harness
/plugin install explore-team@justn-harness
git clone https://github.com/justn-hyeok/harness-for-yall.git
cd harness-for-yall
chmod +x install.sh && ./install.sh
┌─────────────┐
│ User Task │
└──────┬──────┘
│
┌────────────┼────────────┐
▼ ▼ ▼
┌──────────┐ ┌──────────┐ ┌──────────┐
│ Specific │ │ Generic │ │ Analysis │
│ fe / be │ │ dev │ │ explore │
└────┬─────┘ └────┬─────┘ └────┬─────┘
│ │ │
▼ ▼ ▼
┌──────────────────────────────────────┐
│ review-pipeline │
│ screener×3 → moderator → judge │
└──────────────────────────────────────┘
fe-* / be-* over dev-* when the task is clearly frontend or backendexplore → dev → review for complex workflows| Agent | Model | Why |
|---|---|---|
explore-scout | opus | Orchestration quality matters for architecture analysis |
| Everything else | sonnet | Cost efficiency — sonnet handles implementation well |
.claude-plugin/
marketplace.json # Plugin Marketplace catalog
plugins/
dev-pipeline/ # 5 agents, 1 skill
.claude-plugin/plugin.json
agents/ # dev-planner, dev-frontend, dev-backend, dev-reviewer, dev-qa
skills/dev-feature/
review-pipeline/ # 5 agents, 1 skill
agents/ # review-screener-{1,2,3}, review-moderator, review-judge
skills/review-code/
fe-experts/ # 5 agents, 5 skills
agents/ # fe-architect, fe-implementer, fe-styler, fe-perf, fe-tester
skills/ # fe-component, fe-page, fe-refactor, fe-review, fe-test
be-experts/ # 7 agents, 5 skills
agents/ # be-architect, be-implementer, be-validator, be-resilience, be-provider, be-security, be-tester
skills/ # be-api, be-mcp-server, be-pipeline, be-llm-integration, be-observability
explore-team/ # 4 agents, 3 skills
agents/ # explore-scout, explore-hypothesizer, explore-evidence, explore-synthesizer
skills/ # explore-investigate, explore-quick, explore-hypothesis
bin/install.mjs # npx CLI
package.json # npm config
install.sh # Shell installer
uninstall.sh # Shell uninstaller
Each agent is a standalone .md file with YAML frontmatter. Edit freely:
---
name: fe-architect
description: "React/Next.js component architecture"
model: sonnet # change to opus if you want
tools:
- Read
- Glob
- Grep
---
Skills are in SKILL.md format inside named folders. Add your own by creating plugins/<team>/skills/<name>/SKILL.md.
MIT
Comprehensive UI/UX design plugin for mobile (iOS, Android, React Native) and web applications with design systems, accessibility, and modern patterns
Qiushi Skill: method skills for AI agents guided by seeking truth from facts.
Access thousands of AI prompts and skills directly in your AI coding assistant. Search prompts, discover skills, save your own, and improve prompts with AI.