This guide explains how to build reliable, provider‑neutral AI agent harnesses for production by covering the agentic loop, tool and permission management, context compaction, security evaluations, budgeting, and deployment considerations, and provides an open‑source skill with ready‑to‑use artifacts.
The Memory indicator in Gemini CLI shows the serialized size of the active context and varies as the tool dynamically loads, unloads, and compresses context data through just‑in‑time loading and automatic compaction, rather than reflecting a static token count.
The article analyzes context compaction for long‑running LLM agents, comparing pi‑mono and Claude Code approaches, detailing when, where, and how to compress, trigger mechanisms, multi‑step summarization pipelines, storage formats, reconstruction methods, and the trade‑offs between cost, latency, and summary quality.
This guide walks experienced developers through Codex’s advanced capabilities—layered AGENTS.md configuration, Context Compaction to prevent memory loss, Claude‑Code hybrid workflows, sandbox and Rules security controls, the extensible MCP protocol, profile switching, pipeline integration, and session management—to transform casual use into expert mastery.
This article reviews recent OpenClaw security incidents, from a high‑profile email‑deletion failure caused by context compaction to supply‑chain attacks on Skills, analyzes the underlying architectural flaws of soft boundaries and missing execution‑time safeguards, and proposes a three‑layer hardening framework for AI agents.
