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Harness Engineering
Tier 2
agentic-harness-patterns-skill
Summary
A distilled 'skill' file of agentic harness patterns - short, dense, and directly reusable as workflow steps. The compressed counterpart to the harness-engineering book.
Key Takeaways
- Dense pattern list translates directly into flow steps and checklists
- Skill-file format shows how to package harness knowledge for agents themselves
Reliability Note
Community distillation; verify patterns against your own harness behavior.
Flows informed by this source
2Agent Architecture
Design a Single-Loop Agent
Build the core agent loop the leading coding agents use: one model, one loop, tools in, results folded back into context.
01Define the loop contract
02Build the tool registry
03Implement the loop with result folding
+2 more steps to Done
Best forproduction-grade builds with strict verification
5 steps90-150 minutesAdvanced
Harness Engineering
Verification Loops: Never Trust an Unrun Edit
Wire verification into your agent so every edit is checked by machines - syntax, tests, behavior - before it counts as done.
01Verify at the write boundary
02Add the post-change verify step
03Gate completion on evidence
+1 more steps to Done
Best forbuilders who have shipped a basic app before
4 steps60-100 minutesIntermediate