Your product map.
Your AI's context.

Stub a project from an idea, a transcript, or a doc. Pin your stack, brand, and design. Let your agents read it before writing a line of code.

Start building free

VIDEO: Full platform — canvas + chat + journey sidebar (light theme, 1600×1000)

Start fast

From an idea to a backbone in a minute.

Paste anything you have: a one-liner, a client interview, a PRD draft. Karkas extracts JTBD, milestones, stack, and a brand-book seed.

From an idea

One sentence. We turn it into a structured project blueprint with a stack picked for your surface.

From a client interview

Drop a transcript. JTBD, persona, and outcomes come out structured and editable.

From a document

A PRD, Notion export, or spec, extracted into milestones, models, and a build plan.

One workspace. Full picture.

Write it down.

VIDEO: Notes panel — rich text, headings, checkboxes (800×480)

Map the system.

VIDEO: Canvas — nodes connected, milestone labels visible (800×480)

Pin your brand.

VIDEO: Brand book — mission, tone, color palette (800×480)

Drop your designs.

VIDEO: Design tab — designs + references with like/dislike (800×480)

Brief your AI once.

Connect Cursor or Claude Code via MCP. They read your full architecture every session, with no re-explaining.

VIDEO: AI chat — architecture-aware response via MCP (960×560)

Structured backbone

JTBD, milestones, domain models, stack, verification. Every product decision in its own slot.

Brand & design pinned

A brand book and a design vault: references vs. designs, with what-you-like and what-you-don't.

Agentic skills

Skills marketplace + auto-install when you connect an agent. Cursor, Claude Code, anything MCP.

Bring your own model

Plug your own API keys or run a self-hosted endpoint. Your data, your choice of brain.

The Backbone

Structured layers,
clear thinking.

From jobs-to-be-done to verification checkpoints, every product decision has a place. Fill in what you know, skip what you don't.

  • JTBD & assumptions
  • Functionality matrix
  • Domain models
  • Tech stack
  • Architecture canvas
  • Verification map
Start mapping

VIDEO: All 6 backbone layers filled in — scroll through journey widget (800×600)

Knowledge Vault

Write freely.
Find everything.

Docs, meeting notes, decision logs, all linked to your project. No more hunting through chat to find that one architectural call.

Try it free

VIDEO: Notes — type a doc, headings, checklist, linked decision (800×580)

Brand & Design

Your taste.
Locked in.

A brand book your agents respect, and a design vault that separates designs from references. Every file is tagged AI-or-human and current-or-stale, so agents don't build from a screenshot you already replaced.

  • Brand book
  • Designs vs refs
  • Like / don't like
  • Actuality flags
Try it free

VIDEO: Brand book + design tab — palette, typography, asset cards (800×580)

Agentic skills + MCP

Your AI, always
fully briefed.

One curl connects Cursor or Claude Code, drops your skills into the right folder, and exposes 40+ project-aware tools. Agents read your architecture, brand, and designs before they write a line.

CursorClaude CodeClineContinueAny MCP
Developer docs

VIDEO: agent install — one curl writes MCP config + bundles skills (800×580)

Intelligent chat

Chats that
remember.

Every thread reads the project briefing automatically: mission, models, stack, brand, recent decisions. Sibling threads stay reachable when you ask "what did we decide last week?"

  • Auto-loaded project briefing
  • Cross-thread memory recall
  • Tool calls scoped per token

VIDEO: chat — agent references brand voice + recent decision (800×580)

Bring your own model

Your brain.
Your bill.

Plug Anthropic, OpenAI, OpenRouter, or a self-hosted endpoint. Pick the model per chat. Your data and your spend stay where you want them.

AnthropicOpenAIOpenRouterOllamaSelf-hosted

VIDEO: settings — model picker showing API keys + endpoints (800×580)

Build Prompts

Brief once.
Build faster.

Your backbone becomes a build prompt your AI agent can act on. Start each coding session with full context already loaded.

  • Build prompts from backbone
  • MCP for Cursor & Claude Code
  • Task board per project
Try it free

VIDEO: Scaffold — numbered build steps, checkboxes, copy button (800×580)

Stop re-explaining your project.

Brief your agents once. Free during beta.