Post-build credential prompts unified into single flow

aalises

·Apr 10, 2026·#28273fix(ai-builder): Unify post-build credential setup into single setup-workflow flow

Workflows built with AI now route all credential setup through one unified flow instead of showing users two separate prompts in sequence.

After building a workflow with AI, users were previously shown two setup prompts in sequence — first a credential picker, then the full setup panel. The builder sub-agent has been refactored to route all post-build configuration through a single setup-workflow call instead of chaining setup-credentials to apply-workflow-credentials. When users choose to defer setup, the system now respects that decision without retrying with alternative setup tools. This applies to the AI builder in the @n8n/instance-ai package, specifically the workflow loop and builder agent tooling.

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Summary

Remove credential finalization (setup-credentials + apply-workflow-credentials) from the builder sub-agent — the builder now only builds and verifies
Update workflow loop guidance to point to setup-workflow instead of the old setup-credentials → apply-workflow-credentials chain
Add explicit deferral guardrail in system prompt: when setup-workflow returns deferred: true, do not retry with a different setup tool
Tighten system prompt to clarify setup-credentials is only for standalone credential creation outside workflow context

Fixes duplicate setup prompts where users saw first a credential picker (setup-credentials), then the full setup panel (setup-workflow) after building a workflow.

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