The engineering arm of The Seventeen. We build tools that make living and building easier.
- Clarity over cleverness. Easy to read beats fast to write.
- Dependencies are liability. Add them only when necessary.
- Scarcity is a feature. Constraints breed better solutions than abundance.
-
AgentSecrets: Zero-knowledge secrets infrastructure for AI systems. Agents operate credentials without ever seeing the values.
-
keychain-auth: OS keychain security hardening. Closes the gap the OS leaves open — any process running as you can read your keychain. keychain-auth enforces verified process identity before any credential is accessed.
-
SEC: Signed Execution Contracts for AI agents. Before an agent reads untrusted content, it commits to a signed contract declaring what it is allowed to do. If the agent is hijacked by a prompt injection, the contract doesn't change — and the credentials stay locked.
-
pr-reviewer: Autonomous Python PR reviewer. Production-grade agentic system and the live showcase for the AgentSecrets security stack — progressing from unsecured baseline through credential protection (AgentSecrets), cryptographic intent enforcement (SEC), and behavioral abuse containment (CAD).
Code lives here on GitHub. How we build it lives at engineering.theseventeen.co.