Query before mutation: guardrail patterns for agents that touch production infrastructure
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Conference In 6 weeks

December
Monday
to Tue 8 December 2026 · Sydney time

Query before mutation guardrail patterns for agents that touch production infrastructure

Where
AI Engineering room 488 George Street, 2000, Sydney
Host
Web Directions
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  • Jeffrey Aven Speaker
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AboutIn the host's words.

Speakers: Jeffrey Aven (StackQL Studios)

Track: AI Engineering

Covered in the session:

  • Why plan-and-apply was always a human safety mechanism: a person reads the plan, notices something is off, and stops the apply - and why this quietly disappears the moment an agent is the operator
  • Query before mutation as the foundational pattern: requiring agents to establish current state from the live environment before any write, and why reasoning from stale context is the root cause of most agent-inflicted damage
  • Idempotent assertions over imperative commands: expressing changes as desired state the agent can safely retry, rather than one-shot operations that compound when repeated
  • Policy gates that work without a human: encoding the judgement a reviewer would have applied as machine-checkable rules at the interface, not in a document
  • Blast radius controls: scoping agent credentials and mutation surfaces so the worst case is bounded, including read-only by default with explicit mutation grants
  • What went wrong on the way here: real examples of agent behaviour against live cloud environments that motivated each pattern, including failures the patterns would not have caught
  • A demo of an agent operating against real infrastructure with these guardrails active, including a blocked mutation and the recovery path

Attendees will leave with a practical guardrail checklist for any agent that can modify infrastructure, ordered by which controls give the most protection for the least effort.

https://data.webdirections.org/ai-engineer-sydney/sessions.json#c4f49d68-b118-4813-a69e-3725799394b0

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Where

AI Engineering room

488 George Street, 2000, Sydney

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