AI Agent Incident Response: The Six-Step Procedure Behind Nestack Agent Care

Nestack TechnologiesNovember 10, 20263 min read
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AI Agent Incident Response: The Six-Step Procedure Behind Nestack Agent Care

When a production AI agent gives a risky answer, calls the wrong tool or drifts out of policy, the worst thing a team can do is improvise. AI agent incident response at Nestack Agent Care follows a written procedure that applies to SEV-1, SEV-2 and SEV-3 cases, so every incident is handled the same way.

Nestack Agent Care is the managed AI agent operations service from Nestack Technologies. It runs production AI agents across goals, workflows, tools, LLMs, evaluations, guardrails and human review, backed by 5,814 catalogued failure modes, 23 industry playbooks and a 30-minute SLA for critical incidents.

The six steps of the incident procedure

  1. Detect. An alert, a failed evaluation, a guardrail event or a human reviewer flags a risky session, and the case is acknowledged within the agreed response target.
  2. Contain. For a SEV-1 incident, the affected workflow is paused, the risky tool is restricted or the agent is moved into an agreed safe mode before full diagnosis. Who may contain an agent is settled during onboarding, not in the middle of an incident.
  3. Diagnose. The goal, retrieval, plan, workflow, task, tool, LLM, evaluation and guardrail records are correlated to find the affected slice, classify the failure mode and locate the earliest critical decision that caused the problem.
  4. Remediate. The relevant runbook is applied to fix the prompt, workflow, tool configuration, data source or guardrail. Each change is linked to the evidence that triggered it and checked with targeted output, step or trajectory evaluations before the agent gets its autonomy back.
  5. Notify. The client is informed on the agreed schedule. SEV-1 updates cover the affected agents, impacted sessions, containment status, probable source and next action.
  6. Learn. A post-incident review is completed within five business days. The incident closes only once the failure mode, corrective action and verification evidence are recorded and the related evaluation case, guardrail or runbook has been updated.

Why a written procedure matters

The aim is simple: contain the immediate risk, find the operational layer that failed, prove the fix works, and turn each incident into reusable evidence for future monitoring and evaluation. Over time this means fewer repeat failures and a monthly, audit-ready scorecard that leadership or a regulator can read.

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