A small team, shipping the runtime security tool we wanted to use.
Rune is an independent Agent Detection & Response platform. One founder, one focus: make it obvious how to protect an AI agent in production, and then ship the thing that actually does it.
DP
Declan Paul
Founder · UK
I started Rune after watching team after team wire tool access and database credentials into agents with nothing between the LLM and production. Prompt engineering as a defense, if it was even tried at all.
The existing tools either got acquired into enterprise suites or aimed only at the governance layer. Nothing shipped the boring, fast, runtime thing — the one that scans every input and output before the agent acts. So here we are.
I'm at hello@runesec.dev. If you're evaluating, email me. You'll get the founder, not a BDR.
What we think
Principles we're building to.
01
Earn trust through specifics
Exact numbers, real code, actual attack payloads. Never wave hands. If we can’t put it in a code block, we probably don’t understand it yet.
02
Respect the developer’s time
Every section should answer “why should I care?” in under five seconds. No filler. No enterprise pageantry. No “book a demo.”
03
Confidence without performance
Bold claims backed by substance. No gradients for impact. No sparkle decorations. No “look how cool we are.”
04
Designed, not decorated
Every visual element should communicate something. If it’s just decoration, cut it.
05
Indie spirit
Not a big company pretending to be small. A small team that actually cares about the thing you’re paying for.