Fermion Fleet Uses Structured Boolean Gates to Prevent AI Agent Overreach

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Fermion Fleet is a multi-agent system developed for the Google All Things Agentic Hackathon that enforces order approvals through code-level boolean checks rather than relying on an AI model's confident-sounding language. The system requires a parseable structured approval before any order can be committed to a ledger, meaning ambiguous, malformed, or missing outputs automatically hold the transaction. To handle long-running conversations, the project employs a pressure-driven context eviction mechanism that moves lower-priority items to a recoverable pool instead of permanently deleting them, allowing earlier details to be recalled when later steps require them. The runtime is built on Google's Gemini 1.5 Flash via Vertex AI, Google ADK, and Cloud Run, while the permission and context policies are custom-built by the team. The current build stores context and ledger data in process memory, with persistence via services like Firestore noted as a planned but not yet implemented next step.

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