Tessl
Backed by
Tessl helps AI agents stay reliable and aligned by grounding their work in specs. Agents are powerful, but they can drift — misinterpreting requests, hallucinating APIs, or breaking existing features when adding new ones. Tessl integrates with most agents and uses spec-driven development to give agents (and you) a structured way to capture intent, run tests, and evolve codebases with fewer mistakes.
Member of Product Staff - Product Manager
Developer Advocate
Field Engineer (Presales)
Developer Advocate
Member of Technical Staff- Research Engineer (Harness Engineering and Agentic Orchestration)
Member of Design Staff - Product Designer
Product Marketing Manager
Marketing/Content Designer
