Matheus Pavaneli
Matheus Pavaneli is the founder of Seal and a senior fullstack engineer with 5+ years building production systems under real load. He specializes in security architecture and the correctness guarantees that have to hold when it matters — designing authentication from scratch (multi-provider OAuth, 2FA), production Stripe billing, and event-driven backends in TypeScript and Node.js. Seal grew out of that focus: making fail-closed, tamper-evident human-in-the-loop control something you get from one SDK call instead of months of hardening.
- Add a human approval step to your agent in one call
A practical walkthrough — wrap a risky agent action with gate.require(), route it to Slack, and enforce the verdict. Fail-closed, audited, and framework-agnostic.
- Approval by exception: what actually needs a human
Gating every agent action defeats the point of automation. Approval by exception routes only the irreversible, high-stakes calls to a person — decided by policy, not hardcoded.
- Why autonomous agents need a human off-switch
Autonomous agents are great until they do something irreversible. Human-in-the-loop approvals give you a fail-closed off-switch without slowing the agent down.
- What makes an audit trail actually tamper-evident
A log you can edit is not evidence. Here's what hash-chaining, atomic commits, and append-only guarantees really buy you — and how Seal enforces them.