Plan-Execute Control Flow
A plan that cannot survive a failure is a script. A script that can replan is an agent. Build the replanner first.
Prerequisites: Phase 13 lessons 01-07, Phase 14 lesson 01
#Learning Objectives
- Represent a plan as an ordered list of typed steps so the executor can reason about progress and outcome.
- Execute steps sequentially with a controlled failure handoff back to the planner.
- Replan from the current cursor with the prior error in the context so the next plan is informed.
- Emit a plan diff on each revision so a downstream tracer or UI can show why the plan changed.
- Enforce two budgets: a hard step ceiling and a hard replan ceiling.
Keep going. The rest of this lesson is one step away.
Unlock all 503 lessons, video, code, quizzes and every future update. Pay in your own currency with Paystack.
The text and code of this lesson are based on AI Engineering from Scratch by Rohit Ghumare, MIT licensed.