v0.1.0 — early development

Write the spec. Ship the software.

Spektacular takes a markdown specification and uses AI coding agents to plan and implement your features. Agent-agnostic. Complexity-aware. Interactive TUI.

$ go install github.com/jumppad-labs/spektacular@latest

The Spektacular TUI — real-time agent output, interactive questions, 5 colour themes

Spektacular terminal UI showing markdown plan output, tool usage, and an interactive question panel

From idea to code

Write a spec. Spektacular plans, then implements — routing each stage to the right model and running interactively in your terminal.

📄
spec.md
your requirements,
constraints & criteria
Analyse
complexity score
0.0 – 1.0
cheap model
(fast & low cost)
Plan
explores codebase,
asks questions
Haiku · Sonnet · Opus
scaled by score
📋
plan.md
+ research.md
+ context.md
Implement
executes plan via
coding agent
validates against
acceptance criteria
code
working implementation
verified by criteria

Analyse scores complexity. Plan generates a detailed implementation plan scaled to the task. Implement executes the plan via a coding agent and validates the result against your acceptance criteria.

Built for how developers actually work

Everything you need for structured, AI-assisted planning — without locking you into a single agent or model.

📄

Spec-first

Write requirements before code. Structured markdown specs drive all AI workflows and keep intent clear and reviewable.

🤖

Agent-agnostic

Works with Claude Code, Aider, Cursor — bring your own coding agent. Spektacular orchestrates it, not replaces it.

🎨

Interactive TUI

Beautiful terminal UI with real-time streaming, interactive questions, and 5 built-in colour themes. Press t to cycle.

Complexity-aware

Tasks are scored 0–1 for complexity. Simple tasks route to cheap fast models. Complex tasks get the heavy hitters.

🧠

Knowledge-driven

A project knowledge base feeds architecture, conventions, and past learnings into every plan. Gets smarter over time.

🔓

Open source

Apache 2.0 licensed. Build on it, extend it, run it anywhere. Contributions welcome.

Ready to build smarter?

Spektacular is free and open source. Start with a spec, ship with confidence.