Karl — Fixing developer handoff
Turns fuzzy product input into developer-ready briefs.
Founder / built end-to-end · 2026 — present
- PROBLEM
- Agents build the wrong thing when the input is fuzzy.
- BUILT
- Conversational spec tool pulling context from codebase, Jira, Confluence, Figma.
- STACK
- Next.js · TypeScript · Claude API
- STATUS
- live
One of the products I build and operate — built end-to-end, solo.
Why it exists
Coding agents got good fast. The bottleneck moved upstream: an agent will happily build the wrong thing if the input is fuzzy, and most product input is fuzzy — a Slack thread, a half-written ticket, a screenshot. The gap between a product idea and an actionable developer brief is where velocity dies, and I kept watching teams lose days to rework that traced back to the brief, not the build. Karl is my answer: fix the input, fix the output.
How it works
- A structured conversation, not a form. Karl runs a dialogue the way an experienced product manager elicits requirements — core intent first, then scope, constraints, edge cases, and acceptance criteria. Deliberately not auto-generation from a blank page.
- Context pulled from where it already lives. It reads the codebase, Jira, Confluence, and Figma instead of making you retype what the company already knows.
- A complete brief, not a draft. Out comes a developer-ready brief — user story, acceptance criteria, technical constraints, edge cases, and a suggested implementation approach — ready to drop into a ticket for an agent or a human.
Status
Live at getkarl.co.