Meet SpecRails Hub – Your Agentic Development Team. From Idea to Production Code.

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First, what is specrails?

Most AI coding tools give you one assistant. SpecRails gives you a structured agentic team.

It sits on top of Claude Code and turns it into a pipeline of specialized agents: an Architect who designs the change, a Developer who implements it, a Reviewer who audits the diff, and a Ship phase that closes the loop (and others like Product Manager, Product Analyst, Security, Test Writer, etc). Each agent has a defined role, reads the context it needs, and hands off to the next.

The engine is specrails-core — an npm package that drops a .claude/ directory into your repo with agent definitions, command templates, and a spec-driven workflow (using the OpenSpec framework).

  • I.e.: one command, /specrails:implement, runs the whole pipeline.

That covers writing code. Now we’re shipping what covers watching code get written.

From CLI to cockpit

specrails-core is the engine. What it’s missed until now is a windshield — a place to see what’s happening while the engine runs.

specrails hub is that windshield. A local dashboard and CLI for managing every specrails project you have, from one interface.

What it does

Multi-project hub. Register every repo using SpecRails. Switch between them with browser-style tabs. Each project runs its own job queue in parallel; jobs inside a single project run sequentially so phases don’t collide.

Live pipeline visualization. Watch Architect, Developer, Reviewer, and Ship phases update in real time. No more tail -f guessing.

Streaming logs. Every line of claude CLI output streamed to the browser over WebSocket. Pause, scroll, copy, keep going.

Ticket panel. Local tickets as List, Kanban, or Post-it views. Real-time sync with CLI agents — when an agent creates or updates a ticket, you see it appear instantly.

Command launcher. Discovery commands (propose-spec, auto-propose, auto-select) and Delivery commands (implement, batch-implement) grouped
logically. No more remembering flag order.

Analytics. Cost, duration, token usage, throughput — per project. See which repos burn the most Claude credits.

Native desktop app. macOS Apple Silicon today, Windows and Linux next. Built with Tauri, bundles the server as a sidecar — no separate install, no npm start.

Install it

Two options:

  • CLI / browser:
npm install -g specrails-hub
specrails-hub start
open http://localhost:4200

Design principles

  1. Local-first. Everything lives in ~/.specrails/. The server binds to 127.0.0.1 only — your code, logs, and metrics never leave your machine.
  2. Per-project isolation. Each project gets its own SQLite database + a json spec backlog file. A stuck job in one repo can’t block another.
  3. Single WebSocket. One connection broadcasts all events, tagged with projectId. Simpler to debug, lighter on resources.
  4. No auth. This is a single-user developer tool — not a service. We didn’t build login, roles, or SSO because they don’t belong in a cockpit you own.

What’s next

Current roadmap:

  • Codex support
  • Windows + Linux desktop builds.
  • Remote mode.

Changelog lives on every release. Follow this blog for the big ones.

If it saves you time:

Buy Me a Coffee at ko-fi.com

Keeps us building!!

The SpecRails team