A verification layer for browser agents: Amazon case study
11 days ago
- #verification
- #local-models
- #browser-agents
- Verification layer enhances reliability in browser agents by using structured snapshots and Jest-style assertions.
- Key findings include: autonomous runs can complete with local models when verification gates every step, token efficiency is improved by interface design, and verification is more critical than intelligence.
- The architecture involves a 3-model stack: planner, executor, and verifier, with verification gating each action.
- Verification is implemented via explicit assertions over structured snapshots, ensuring deterministic outcomes.
- Four demos illustrate the evolution from cloud-based to local autonomy, showing improvements in reliability and efficiency.
- Deterministic overrides and explicit assertions prevent silent failures and ensure correct behavior.
- Local models become viable due to structured snapshots and verification, reducing token usage and improving privacy.
- Takeaways emphasize verification over intelligence, structure-first snapshots, and the practicality of local models with verification.