Agent Memory Engineering
This page is now a source reference for Nic’s memory-system audit. The primary reusable concept extracted from it is Agent Memory as Hint Surface.
Search terms preserved here: Hermes memory, Codex memory, Claude Code memory, MEMORY.md, memory_summary.md, prefix cache, simple stack wins, LLM + Markdown + bash, index always visible, lazy body, verify on read, signal gate, persistent prompt injection.
Key source claims
- Simple memory stacks often beat vector DB / graph / background-agent architectures in daily agent workflows.
- Prompt-cache economics strongly shape memory injection design.
- Memory writes need signal gates; memory reads need freshness and verification discipline.
- Agent memory is model-harness fit, not just portable bytes.