Nexus

Multi-agent orchestration plugin for GitHub Copilot. Conforms to the Agent Plugins 1.0 open standard.

Nexus provides a team of specialized AI personas that collaborate to plan, build, and review software through a consistent workflow system.

Installation

VS Code Agent Plugins

Open this URL in your browser: vscode://chat-plugin/add-marketplace?ref=houke/nexus
In VS Code, open Extensions (Cmd/Ctrl+Shift+X)
Search for @agentPlugins houke and install Nexus
Open Copilot Chat and choose the Nexus agent

Copilot CLI

copilot plugin marketplace add houke/nexus
copilot plugin install nexus@houke-nexus
copilot plugin list

What You Get

Agents

Agent	Description
`nexus`	Orchestrator: triages requests and delegates to specialized agents via `runSubagent`.
`architect`	System architecture, schemas, local-first and infra design.
`software-developer`	Production implementation, TDD, debugging.
`tech-lead`	Code quality, architecture integrity, refactoring.
`qa-engineer`	Testing strategy, edge cases, accessibility checks.
`security-agent`	OWASP security review, dependency and threat checks.
`product-manager`	User stories, acceptance criteria, prioritization.
`business-analyst`	Requirements, process mapping, cross-platform documentation ownership.
`ux-designer`	User flows, IA, interaction design.
`visual-designer`	UI polish, visual hierarchy, motion and layout refinement.
`devops`	CI/CD, release automation, operational hardening.
`gamer`	Gamification loops, progression, retention mechanics.
`seo-specialist`	Technical SEO, structured data, search optimization.

Skills

Skill	Description
`accessibility-audit`	WCAG 2.2 accessibility auditing.
`frontend-ui-polish`	Visual polish, animation, design token usage.
`gamification-patterns`	XP, achievements, streak and reward systems.
`google-official-seo-guide`	Official Google SEO guidance.
`implementation-patterns`	TDD and production implementation conventions.
`local-first-patterns`	Offline-first storage and sync patterns.
`nexus-workflows`	Planning, execution, review, sync, summary, hotfix, init orchestration.
`requirements-engineering`	User stories, acceptance criteria, PRD structure.
`security-audit`	OWASP security audit checklists and patterns.
`seo-aeo-best-practices`	SEO + AEO implementation guidance.
`test-generation`	Vitest, RTL, Playwright test generation.
`user-flow-design`	Journey mapping and interaction workflows.
`verify-code`	Code quality and type safety validation.
`webgpu-threejs-tsl`	WebGPU + Three.js TSL guidance.

MCP Servers

Server	Description
`filesystem`	Filesystem operations via MCP.
`playwright`	Browser automation for E2E and UI validation.
`sequential-thinking`	Structured multi-step reasoning support.

Workflows

Nexus ships with workflow prompts in plugins/nexus/skills/nexus-workflows/workflows/.

Workflow	Slash Command	Purpose
`plan.md`	`/nexus-workflows plan`	Multi-agent planning session with requirements and architecture alignment.
`execution.md`	`/nexus-workflows execute`	Coordinate implementation from an approved plan.
`review.md`	`/nexus-workflows review`	Multi-agent review and fix pass with documented findings.
`hotfix.md`	`/nexus-workflows hotfix`	Fast path for small, well-understood bug fixes.
`sync.md`	`/nexus-workflows sync`	Reconcile documentation with actual repository changes.
`summary.md`	`/nexus-workflows summary`	Snapshot of progress and gaps.
`init.md`	`/nexus-workflows init`	Scaffold `.nexus/`, feature index, memory files, and required baseline docs.

Orchestration Rules

Nexus defaults to delegation for substantive work.
Direct Q&A is allowed for lightweight explanation or clarification.
If workflow keywords are detected, workflow routing takes priority over Q&A mode.
If a workflow expects output files, those files must be persisted before user satisfaction prompts.

Output Structure

Nexus organizes work under .nexus/ using feature folders:

.nexus/
  toc.md
  features/
    <feature-slug>/
      plan.md
      execution.md
      review.md
      summary.md
      notes/
    _hotfixes/
  memory/
  tmp/

Repository Structure

nexus/
  .github/
    plugin/
      marketplace.json       # Copilot marketplace catalog
  plugins/
    nexus/
      plugin.json            # Agent Plugins 1.0 manifest
      mcp.json               # Portable MCP server definitions
      skills/                # Auto-discovered skills
      com.github.copilot/
        agents/              # Copilot-specific agents

License

MIT