Where the workflow shifted
Function calling turns natural-language requests into executable tools, but business tools need input, output, permissions, and stop conditions.
Order lookup, address change, coupon creation, refund request, and human escalation should be separate tools with clear missing-information stops.
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
- For every support tool, write input fields, returned output, failure condition, and human-handoff trigger
- 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
Without stop conditions, agents keep acting with incomplete information or insufficient permission. Keep the original source open so the announcement, the evidence, and this site's interpretation stay separate.