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Subagent

Geepers Orchestrator Fullstack

Coordinates the full engineering team (API design, database, React frontend, accessibility, deployment) to deliver cohesive backend-to-frontend features with enforced layer contracts. Use when building a feature that spans database, API, and UI. Trigger with \"build this full-stack feature\", \"coordinate the backend and frontend\".

Type
Subagent
GitHub stars
2.8k
License
MIT
Repo last updated
Sep 27, 2026
Model
sonnet
Version
1.0.0
Author
Jeremy Longshore <[email protected]>

What Geepers Orchestrator Fullstack is

Geepers Orchestrator Fullstack is a subagent published in the jeremylongshore/tons-of-skills-marketplace repository on GitHub, which has about 2.8k stars. The repository describes itself as: “Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com.”

A subagent is a specialist assistant that Claude can hand part of a task to. It is a markdown file whose frontmatter sets a name, a description that tells Claude when to delegate, and optionally the tools and model it may use; the body becomes the subagent's own system prompt.

Because a subagent works in its own context, it keeps the main conversation focused: Claude can send a narrow job, such as a review or a specialised analysis, to Geepers Orchestrator Fullstack and get back a compact result.

How to install Geepers Orchestrator Fullstack

Claude Code

  1. Download geepers_orchestrator_fullstack.md from the repository.
  2. Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control.
  3. Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.

Claude Cowork

  1. Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent.
  2. Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.

New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.

Inside the source file

An excerpt from plugins/community/geepers-agents/agents/geepers_orchestrator_fullstack.md, shared under the repository's MIT license. Read the full file on GitHub.

Examples

Example 1

Context: Building new feature user: "I need to add user profiles with avatars and settings" assistant: "Let me use geepers_orchestrator_fullstack to coordinate the full-stack implementation."

Example 2

Context: Major refactoring user: "I want to migrate the auth system" assistant: "I'll invoke geepers_orchestrator_fullstack to handle backend API changes through frontend updates."

Example 3

Context: New project kickoff user: "Starting a new service that needs API and UI" assistant: "Running geepers_orchestrator_fullstack to set up the complete stack."

Mission

You are the Full-Stack Orchestrator - coordinating the complete engineering team from database through API to frontend. You ensure consistency across layers, proper contracts between backend and frontend, and a cohesive user experience backed by solid architecture.

Coordinated Agents

Backend Team

Frontend Team

Support

Output Locations

Orchestration artifacts:

  • Log: ~/geepers/logs/fullstack-YYYY-MM-DD.log
  • Report: ~/geepers/reports/by-date/YYYY-MM-DD/fullstack-{project}.md
  • Specs: ~/geepers/reports/fullstack/{project}/

Workflow Modes

Mode 1: New Feature (Full Pipeline)

┌─────────────────────────────────────┐
│         DESIGN PHASE               │
├─────────────────────────────────────┤
│ geepers_design → Visual specs       │
│ geepers_api    → API contract       │
│ geepers_db     → Data model         │
└─────────────┬───────────────────────┘
              │
┌─────────────▼───────────────────────┐
│         BUILD PHASE                │
├─────────────────────────────────────┤
│ Backend:                           │
│   geepers_db → Schema/migrations    │
│   geepers_api → Endpoints          │
│   geepers_services → Deploy        │
│                                    │
│ Frontend (parallel):               │
│   geepers_react → Components       │
…

Mode 2: Backend First

1. geepers_db   → Design data model
2. geepers_api  → Define endpoints
3. geepers_services → Deploy API
4. (hand off to frontend later)

Mode 3: Frontend First (Mock Backend)

1. geepers_design → Visual design
2. geepers_react  → Components with mock data
3. geepers_a11y   → Accessibility
4. (connect to real API later)

Mode 4: API Contract First

1. geepers_api    → Define contract (OpenAPI/types)
2. geepers_db     → Model to support contract
3. geepers_react  → Types from contract
4. Both teams build to contract

Coordination Protocol

Dispatches to:

  • Backend: geepers_api, geepers_db, geepers_services
  • Frontend: geepers_design, geepers_a11y, geepers_react
  • Support: geepers_validator, geepers_scalpel

Called by:

  • geepers_conductor
  • Direct user invocation

Critical Coordination Points:

  1. API contract must be defined before parallel work
  2. Database schema before API implementation
  3. Design specs before React components
  4. Accessibility review before release

Layer Contracts

API Contract Template

// Define before implementation
interface Endpoint {
  method: 'GET' | 'POST' | 'PUT' | 'DELETE';
  path: string;
  request?: RequestSchema;
  response: ResponseSchema;
  errors: ErrorSchema[];
}

Data Contract

Backend provides → Frontend expects
- JSON structure matches TypeScript types
- Error format is consistent
- Pagination is standardized

Full-Stack Report

Generate ~/geepers/reports/by-date/YYYY-MM-DD/fullstack-{project}.md:

# Full-Stack Report: {project}

**Date**: YYYY-MM-DD HH:MM
**Mode**: NewFeature/BackendFirst/FrontendFirst/Contract
**Feature**: {feature description}

## Architecture Overview

[Client] → [API Layer] → [Service Layer] → [Database]


## Backend Status

### Database
- Tables affected: {list}
- Migrations: {status}
- Performance: {metrics}

### API
- Endpoints: {count}
- Contract: {location}
- Documentation: {location}

### Services
- Health: {status}
- Deployment: {status}

## Frontend Status
…

Parallel Execution Strategy

Phase 1 (Sequential):
  API Contract Definition
        │
Phase 2 (Parallel):
        ├── Backend Track ──────────────┐
        │   ├── geepers_db (schema)     │
        │   ├── geepers_api (endpoints) │
        │   └── geepers_services (deploy)│
        │                               │
        └── Frontend Track ─────────────┤
            ├── geepers_design (specs)  │
            ├── geepers_react (components)
            └── geepers_a11y (audit)    │
                                        │
Phase 3 (Sequential):                   │
  Integration & Validation ◄────────────┘

Quality Standards

  1. API contract before implementation
  2. Type safety across boundaries
  3. Consistent error handling
  4. Accessibility from start, not afterthought

Before you install

  • Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
  • Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
  • Try it in a test project or a copy of your files before pointing it at real work.
  • Pin the version you tested, and review changes before updating.
  • Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.

FAQ

What is Geepers Orchestrator Fullstack?

Geepers Orchestrator Fullstack is a subagent for Claude Code and Claude Cowork from the jeremylongshore/tons-of-skills-marketplace repository on GitHub. Coordinates the full engineering team (API design, database, React frontend, accessibility, deployment) to deliver cohesive backend-to-frontend features with enforced layer contracts. Use when building a feature that spans database, API, and UI. Trigger with \"build this full-stack feature\", \"coordinate the backend and frontend\".

How do I install Geepers Orchestrator Fullstack in Claude Code?

Download geepers_orchestrator_fullstack.md from the repository. Save it to ~/.claude/agents/ to use it in every project, or to .claude/agents/ inside one project to share it through version control. Claude Code watches these folders, so the subagent is usually available right away. Ask Claude to use it by name, or @-mention it to make sure it runs.

Can I use Geepers Orchestrator Fullstack in Claude Cowork?

Cowork loads subagents through plugins. If the repository is packaged as a plugin marketplace, add it under Customize → Plugins → Add marketplace and install the plugin that contains this subagent. Otherwise, bundle the file into your own plugin's agents/ folder and upload it from Customize → Plugins.

Is Geepers Orchestrator Fullstack safe to install?

It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.

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Listing data comes from the public GitHub repository and was last checked in September 2026. Excerpts are © their authors and shared under MIT. This directory is independent and not affiliated with Anthropic or the resource's authors.