Agent Engineering Brief: Loops, Agent APIs, Failure Memory & Safety
Loopcraft: The Art of Stacking Loops argues for replacing manual prompting with stacked autonomous loops, showing how composable agent loops can multiply leverage and remove human bottlenecks. Outcome engineers should treat loop composition as a core orchestration pattern—it’s a practical path to scale agentic workflows and maps directly to Principle 09 (Orchestration).
Rajit Khanna turns PrismVideos’ Hermes rebuild into an agent API reports PrismVideos exposing its media agent as a hosted Hermes-based agent API that handles memory, sandboxing, and automations. This demonstrates a modular agent infra model you can adopt: separate agent runtime, memory, and sandbox services to speed parity and reuse across teams (Principles 07 and 09).
ChatSee raises $6.5M to build ‘failure memory’ for enterprise AI agents describes a funded effort to record and surface agent errors as a first-class layer for enterprise agents. Instrumenting a failure memory gives you post-mortem traces and learning signals to iterate on agent behavior and safety—an operational step toward resilient outcomes (Principles 08 and 14).
AI Agents Still Can’t Stop Prompt Injection Attacks, Researchers Warn shows prompt-injection attacks still succeed against agents using GPT-5 and Gemini in over 79% of tests. That pushes outcome engineers to bake defenses into retrieval, instruction gating, and validation pipelines—this is an immediate security and validation problem, aligning with Principles 14 and 16.
How we made GitHub Copilot CLI more selective about delegation explains how GitHub reduced unnecessary subagent handoffs and parallelized independent work to cut failures and wait time. Use their selective-delegation pattern: limit delegation, prefer local reasoning, and parallelize only when semantically independent—concrete tactics for agent reliability and orchestration (Principles 09, 06, and 14).