A practical, end-to-end walkthrough of Nous Research's Hermes Agent : the principles it's built on, the architecture that makes it work, and a concrete checklist for building a similar self-improving agent yourself. ๐ Table of Contents ๐ค 1. What Hermes Actually Is (in one paragraph) ๐งญ 2. Core Principles 2.1 ๐ Platform-agnostic core 2.2 ๐ Prompt stability (cache-friendly) 2.3 ๐ Progressive disclosure 2.4 ๐ Self-registration over central lists 2.5 ๐งฑ Profile isolation 2.6 ๐ The agent owns its own learning artifacts ๐๏ธ 3. High-Level Architecture ๐ 4. The Agent Loop (the heart of everything) ๐งฉ 5. System Prompt Assembly ๐ ๏ธ 6. Tools System 6.1 ๐ฆ Self-registering registry 6.2 ๐๏ธ Toolsets 6.3 ๐ฅ๏ธ Execution environments 6.4 ๐ค Agent-level tools 6.5 ๐ MCP integration 6.6 ๐ก๏ธ Tool approval & safety (the layered defense) ๐ง 7.โฆ