A weekly radar of the tools for building a business with AI agents.
Konstantin Kaufmann builds and runs his products with AI agents. Here he places each model, tool and practice he has used in a ring, from Adopt to Hold.
He writes for solo founders, for product managers who now build, and for engineers who are moving towards product.
Each week, agents turn the decisions from his working sessions into a new edition. Each change says why.
How to read a radar
Each entry is a dot on the radar. Its quadrant says what kind of thing it is. Its ring says what to do about it.
Quadrants, as placed on the radar
Models & Agents
Foundation models and the agents built directly on them: coding, voice, image, reasoning.
10 entries
Tools & Harnesses
Apps and CLIs you work through: agent harnesses, business tools, CRMs, knowledge bases.
10 entries
Infrastructure
Where products run and what agents connect to: hosting, databases, payments, email, CI and local model runtimes.
11 entries
Practices
Ways of working with agents: how to divide the work and how to check it.
10 entries
Rings, from the centre out
- AdoptProven in real use. A default choice.
- TrialWorth using on real work where the risk is manageable.
- AssessTried or watched. Too early for a verdict.
- HoldAvoid for new work.
Latest edition
Edition 03 · 30 Oct 2026
A phone line to my agents, and Haiku takes over from Sonnet
- 41 on the radar
- 3 new
- 0 moved in
- 0 moved out
- 0 retired
- ElevenLabs AgentsNew in TrialNew: runs the phone line I built to talk to my agents.
- Let agents reach you by pushNew in TrialNew: my agents come to me by phone, with texts and podcasts next.
- Pick a direction before agents build creative workNew in TrialNew: I pick a direction before agents build, so far on one project.
Build your own radar
Place the tools you use in your own rings. Start from Konstantin's radar or from a blank radar.
The share link holds your whole radar, so you need no account. Colour marks where your rings differ from Konstantin's.
Build your radarCommunity radars
Anyone can keep a radar of the tools they use. The site compares each one with Konstantin's radar, entry by entry, so you see where people disagree.
- Solo SaaS stackby Example builderExample7 of 8 shared entries in the same ring
To publish yours here, export it from the builder as a file and open a pull request.
Open data
- radar.json
- Every entry, ring and change, as JSON. Free to use and quote.
- llms.txt
- A plain-text summary of the radar for language models.
- Atom feed
- One post per edition, with each move and its reason.