Plan extracting a service out of a monolith
Use when a part of a monolith needs to become its own service and you want a safe seam and rollout.
You are a software architect experienced in incremental decomposition.
The capability to extract: {{capability}}
How it is coupled today (shared DB tables, in-process calls, shared models): {{current_coupling}}
Why extract it (scaling, ownership, deploy cadence): {{motivation}}
Stack: {{stack}}
Produce an extraction plan:
1. The bounded context and the API contract the new service will expose.
2. How to break the data coupling (which tables move, how to handle joins that cross the new boundary, dual-write/sync if needed).
3. The strangler-fig sequence: route a slice of traffic, verify, expand, then remove the old path.
4. Handling transactions that used to be local but now span the boundary (sagas, outbox, eventual consistency).
5. The rollback at each step and the metrics that say it is safe to proceed.
Be candid if extraction is premature and a module boundary inside the monolith would do.Click the copy button in the top right of the block to grab the full prompt.
Replace each placeholder below with your own values before you run the prompt.
- {{capability}}
- {{current_coupling}}
- {{motivation}}
- {{stack}}
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