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Build → use → hit a limit → improve
Build the harness.
Build the harness.
Understand the machinery.
A practical path from one API call to a trustworthy coding agent—without hiding the important parts behind a framework.
Tiny tasks finished
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Your first win is waiting
Current milestone
Primitive Agent
0 of 3 stages
00
Fundamentals & the first API call
Understand the moving pieces before building an agent loop.
One session at a time
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Small, doable tasks
The problem this stage earns the right to solve
Deliberately postpone
Done when
Try to break it
Experiments that expose the next problem
Expected rough edge
Architecture at this stage
The whole journey
Master map & stopping points
The core path ends at Stage 9. Everything after that should earn its place in your version.
Stage index & major learning
| Stage | Name | Main problem | Major learning |
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