Spectra App

Spectra

A desktop app for managing spec documents — visually track changes, specs, and tasks.

What is Spectra?

Spectra is a Spec-Driven Development (SDD) tool made up of a desktop app, a CLI, and skills for coding agents. Your coding agent uses the skills to propose changes, write specs, and carry out tasks, while the app lets you browse specs, track progress, and archive completed work — no more manually managing spec directories, YAML configs, and Markdown files.

Spectra was inspired by OpenSpec. It started as a GUI frontend for OpenSpec, but after using it for a while, I found that OpenSpec's workflow didn't quite match my own development habits. So I decided to rewrite the entire workflow — simplifying commands, adding the features I wanted, and shaping it into a tool that fits my daily development rhythm.

Features

Spec & Change Management

- View and edit specs and change proposals (changes are created by your coding agent with /spectra-propose)
- Automatically parse task progress from Markdown checklists (- [ ] / - [x])
- Archive completed changes with one click

AI-Assisted Workflow

- Intelligent scanning for contradictions and gaps across proposals, specs, designs, and tasks
- Skills for coding agents — Claude Code, Codex, Cursor, GitHub Copilot, Antigravity, and JetBrains Junie:

In Codex, invoke skills with $ instead of / (for example, $spectra-apply). /spectra-verify and /spectra-analyze can be invoked directly in Claude Code, Codex, and GitHub Copilot.

Compact Mode (⌘D)

- Floating panel for monitoring progress while coding
- Changes and task progress at a glance; ⌘T opens memos

Park Mechanism

- Temporarily park in-progress changes without polluting the Git working tree
- CLI: spectra park  / spectra unpark

Parallel Task Execution

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