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Posts tagged AgentCore

11 posts

AI Engineering

AgentCore Harness: Governing 500 Agents at Scale

AgentCore Harness just went GA. Here's what it solves, what it doesn't, and when you should adopt it instead of building your own agent runtime governance layer.

·11 MIN READ Read →
AI Engineering

AWS DevOps Agent: Build vs Buy for Enterprise AIOps

AWS DevOps Agent is GA and included with Support plans. But it doesn't replace your custom agents -- it complements them. Here's the hybrid pattern: what to buy, what to build, and how MCP bridges the gap.

·13 MIN READ Read →
AI Engineering

MCP Gateway as Policy Enforcement Point: RBAC for Your Agent's Tool Access

Your AI agent has access to tools that perform real actions -- approving expenses, querying databases, modifying infrastructure. Prompt-based guardrails don't survive adversarial inputs. Here's how AgentCore Gateway + Cedar policies create a deterministic enforcement layer that operates independently of the agent's reasoning.

·9 MIN READ Read →
AI Engineering

AWS Agent Toolkit GA: How I Gave an Agent 15,000 AWS APIs Without Losing Sleep

AWS released the Agent Toolkit for AWS on May 6, 2026 -- a managed MCP server exposing the full AWS API surface to autonomous agents. I shipped an infrastructure agent the same week. Here's the two-phase safety pattern that lets you hand an agent the keys to your account without waking up to a $10K bill.

·9 MIN READ Read →
AI Engineering

When Your AI Agent Runs Away: 204 PRs, $900 Wasted, and the 3-Layer Fix

I woke up to 204 pull requests from a single autonomous agent running overnight. 12 hours, ~$900 in Bedrock tokens, 509 failed builds, zero features shipped. Prompt-only safeguards all failed. Here's the 3-layer fix — hard kill switch, atomic circuit breakers, drift observability — that now prevents runaway agents.

·13 MIN READ Read →
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