Restructuring Micro-Tool Architecture with an Objection Agent
MicahBerkley · x · 2026-07-16
The author shares the growth and refactoring journey of a small tool:
- The tool currently has only 17 DAUs, but 15 users use it 3-4 times a day; the author also uses it 10-12 times a day for content creation.
- The .md voice file makes the output sound "like the author", free of corporate polish and generic AI vibes.
- Realizing that the existing Cloudflare architecture wouldn't hold up if traffic scaled, the author decided on a complete refactor.
- They introduced Fable but didn't just ask for a single plan; instead, they used a custom $ObjectionalAgent: acting as a "devil's advocate" to specifically poke holes, identify risks, and stress-test the design.
- The prompting strategy was: first design the most comprehensive architecture possible, then let the objection agent question and revise it, and finally compile the results into a visualized HTML ERD to help understand data flow from a high level.
- The final output includes a relationship diagram and an HTML migration plan, which the author found extremely helpful for scaling the architecture by 100x.
They also mention that interested folks can check out the version with "dancing ants"; billing has not yet been integrated into the tool.
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