Published: September 16, 2025
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Today marks a big milestone for Tessl! The Spec Registry is now live in public beta with 10,000+ usage specs for open-source libraries. Agents get the version-accurate APIs, examples, and history they need to use OSS reliably. No more hallucinations or endless fix loops. 🧵
We’re also expanding the Framework closed beta. Specs capture intent before code, include built-in tests so agents can self-correct, and live in the repo as long-term memory. Giving you faster builds, fewer regressions, and agents that stay on the rails.
Together, they bring spec-driven development to life: the speed of agentic coding with the reliability of production software. Get started at http://tessl.co/betalaunch We can't wait to see what you build!