Fluidstack Engineering: The Real Work in AI Agents is Designing Handoffs

MxMnr · x · 2026-08-02

Fluidstack's network automation team shared their engineering experience building an internal AI agent, agent-deploy. The article emphasizes that the real challenge in agent development isn't picking the model, but designing rigorous handoffs and control logic.

Core Architecture: Instead of using a general coding agent, they built a custom agent loop. An independent analysis revealed that only 1.6% of an agent's code handles AI decision-making, while 98.4% is dedicated to permission gates, context management, tool routing, and recovery.
Safety Mechanisms: General agents often keep safety rules as polite requests in system prompts. This team encodes safety directly into the code, covered by tests.
Practical Application: The tool is in daily use. Operators can ask questions in natural English, and the agent gathers fleet-wide state to output grounded conclusions, recommendations, and auto-files Jira tickets with evidence. Structurally, it never alters the network without human approval.

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Fluidstack Engineering: The Real Work in AI Agents is Designing Handoffs

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