Where the workflow shifted
Function calling can turn a natural-language marketing request into tools such as product lookup, audience selection, offer creation, email preview, and approval submission.
Each marketing tool needs input fields, returned output, permissions, failure conditions, and human confirmation points.
Tool names are not outcomes
The signal matters when it changes how a team ships, reviews, or recovers work, not when it only names another tool.
Check permissions and failure
- Design five tools: read product, select audience, create offer, preview email, submit approval
- Keep the test narrow: one low-risk task or tool entry before connecting permissions, logs, failure handling, and human takeover to production
What still needs proof
One tool that changes products, creates discounts, and sends email makes mistakes hard to trace. Keep the original source open so the announcement, the evidence, and this site's interpretation stay separate.