Instruction & Context Design | Agentic Engineering | Oh My Learning

01 The Scaffolding Surface: Every Place an Agent Reads Instructions From 14 min read mid drafted 02 Structured Metadata as Cheap Signal: Front Matter, Schemas, and Machine-Readable Config 14 min read mid drafted 03 Always-Loaded vs On-Demand: Drawing the Line in a System Prompt 14 min read mid drafted 04 Designing Trigger Descriptions: How an Agent Decides What to Load 16 min read senior drafted 05 Failure Modes of Deferred Loading: Over-Triggering, Under-Triggering, and Silent Gaps 13 min read senior drafted 06 Writing Instructions That Survive Being Read Out of Order 14 min read senior drafted 07 What a Skill Is and When It's Worth Building One 14 min read mid drafted 08 Authoring a Skill End to End: Trigger, Body, and Supporting Files 15 min read senior drafted 09 Evaluating Whether a Skill Actually Works 15 min read senior drafted 10 Hooks, Slash Commands, and Other Deterministic Levers vs Model-Judged Triggers 14 min read senior drafted 11 Choosing the Right Primitive: Instructions, Tools, Skills, Hooks, and Commands 19 min read staff drafted