Define what to build and how to build it

Specs IDE for Product Builders
and their Coding Agents

Specification driven development solves Product Teams and Coding Agents context gap

Nautex AI solves specifications and autonomous implementation guidance

Less drift, Less rework

Capture to Ship With Clear Outputs

Capture

Turn raw inputs into focused requirements
Capture messy inputs, ground them with signals, and shape a clear first spec.
Speak or drop files and keep the raw context intact as it becomes focused intent.
  • Start fast without setup.
  • Preserve unfiltered context.
  • Shape raw thoughts into direction.
Inputs glyph
Search market platforms and the web to see what customers say, so assumptions get grounded early.
  • Signals from maker and market platforms.
  • What customers say, not just what we assume.
  • Ground choices before committing.
Grounding glyph
Targeted follow-ups turn scattered inputs into a focused intent that keeps you on track.
Synthesis glyph
Open a side thread to check option details, then return with the decision grounded.
  • Branch from any option.
  • Keep the main thread clean.
  • Tag learnings back.
Learn more glyph
Go deeper on decision implications, then return with discoveries attached to the main decision.
  • Explore second‑order effects.
  • Keep focus while going deep.
  • Bring the findings back.
Deep dive glyph
Inputs consolidate into a product requirements document that explains what you're building and why.
  • One digestible first document.
  • Clear intent and use cases.
  • Sets direction for review.
Product requirements glyph
Capture: Voice + Files Inputs

Review

Close gaps and approve changes
Navigate anchored references, resolve TODOs, and sign off edits.
During review, gaps become a navigable list so you can jump to each missing decision and resolve it.
  • Gaps detected during generation.
  • Click to jump to each unresolved point.
  • Lower effort to close the loop.
Review todos glyph
Ask about any part of the spec, then click the chat reference to jump to the exact part of the document.
  • Chat cites anchored spec items.
  • One click jumps to the cited spot.
  • Stay oriented while browsing.
Review navigation glyph
Select an exact item, request a change, and approve or decline the edit in context.
  • Pinpoint feedback to a specific item.
  • Review changes before they land.
  • Navigate pending edits quickly.
Review changes glyph
Review: TODO Widget Navigation

Design

Reason through the system design
Ground technical choices, weigh tradeoffs, and split design into linked docs.
Design docs include diagrams and formulas so the intent is visible at a glance.
  • Notation lives inside the spec.
  • Complex ideas become scannable.
  • Visuals support fast review.
Design rich content glyph
Explore technical options in place, learn what each implies, and commit with informed ownership.
  • Branch from any option to learn more.
  • Return with a grounded decision.
  • Keep the main design thread clean.
Design tradeoff glyph
Use targeted web search to confirm what's feasible now, not what only sounded plausible.
  • Web search surfaces stacks and libraries early.
  • Avoid outdated or non‑feasible paths.
  • Ground decisions in current reality.
Design grounding glyph
The system runs step‑by‑step reasoning for you, re‑asking questions until the design is coherent.
  • Step‑by‑step passes replace one‑shot output.
  • Assumptions are rechecked along the way.
  • Architecture is refined before review.
Design reasoning glyph
Break a big design into smaller linked specs so each part stays focused and connected.
  • Avoid one huge document.
  • Zoom into complexity with clear boundaries.
  • Traceability across linked specs.
  • Keep changes consistent across the chain.
Design docs breakdown glyph
Design: Rich Content

Ship

Execute with traceability
Map requirements to files, plan tasks, and connect agents to deliver.
Map requirements to files so ownership is clear before coding and during implementation.
  • File‑level plan before coding starts.
  • Know where to work while building.
  • Predictable structure as scope grows.
Ship files glyph
Lay out the build as typed tasks with checkpoints so execution stays verifiable and in scope.
  • Explore, Code, Test, Review, Input.
  • Acceptance checkpoints per phase.
  • Less derailment and scope creep.
Ship implementation glyph
Click a task, file, or requirement link to jump to the exact spot it references.
  • Traceability across specs, files, and tasks.
  • Less context switching while reviewing scope.
  • Faster understanding of what connects where.
Ship trace glyph
Connect via MCP so the agent pulls tasks step by step without manual context transfer.
  • Task‑by‑task execution from the plan.
  • Less improvisation and drift.
Claude CodeCursorOpenCodeCodex CLIGemini CLI
Ship connect glyph
At each checkpoint, verify results, answer targeted questions, and approve or request changes.
  • Quality gates before compounding progress.
  • Involved at the right moments.
  • Reduce anxiety and mistakes.
  • Incremental verification points.
Ship code and review glyph
The agent runs through the plan while you step in only for review and judgment.
  • Tasks move from planned to done.
  • You guide with judgment, not micromanagement.
  • Momentum without losing control.
Ship code glyph
Ship: Files

Rooted in Vision, Crowned by Code

Roots hold your product vision, the trunk aligns architecture and requirements, and the crown blossoms into maintainable code — all nourished by a traceable and live knowledge of specifications.

Code
Requirements & Architecture
Vision

Pricing

Free

Perfect for getting started

$0forever
  • Specifications
  • Implementation Plans
  • Coding Agents guidance
  • 1 project

Pro

For regular use

$20/month
  • Everything in Free
  • More daily capacity
  • Unlimited projects

Pro+

For advanced use

$100/month
  • Everything in Pro
  • 10x more capacity

Enterprise

For organizations

Custom
  • All Pro features
  • Team Collaboration
  • Daily communication digesting and auto-updates
  • On-Demand on-premise deployment
  • Boilerplates management
  • Advanced security controls

Make your next build declarative.

Turn intent into reviewed specs and verified implementation — fewer rework loops, lower token burn, predictable outcomes.