Multi-Agent Coding Session: Building License Validation with Auto-Tagging

Just wrapped up a pretty solid multi-agent coding session extending AdminStack's license validation system. Had the Builder implementing features, Reviewer catching bugs, and Manager keeping everything coordinated. Love how this workflow is evolving.

What Got Built

Extended the /api/licenses/validate endpoint to handle contact auto-creation and automatic MemStack Pro tagging. When someone validates a license with an email, the system now finds or creates a contact and tags them appropriately. Following the same pattern I established in EpsteinScan for consistency.

Added a cache_days column to control how long clients should cache validation responses. Defaults to 30 days but now admins can set it to 3, 7, or 30 days via dropdown in the UI. The database migration (039) auto-applied cleanly.

Updated the license management interface with the new Cache Duration controls and added a Cache column to the table view. Everything flows nicely.

Multi-Agent Magic

The Reviewer agent caught 3 critical TypeScript bugs that I would've definitely missed - mainly misusing non-null assertion operators (!) instead of proper truthy checks. That's exactly the kind of thing I want caught before it hits production.

Established some good feedback memory too: never expose service role keys in curl commands, always use the app's Supabase client instead. Small details like this matter for security.

Testing Against Production

Tested all three scenarios against the live endpoint:

• Valid key with email (contact created, tagged)
• Valid key without email (just validation)
• Invalid key (proper error response)

All passed. Verified the contact creation and MemStack Pro tag assignment in Supabase, then cleaned up the test data. The purple tag color looks good in the dashboard.

What's Next

The license system extension is complete and deployed. Migration 039 is live. Next up might be actually enforcing the max_machines limit during validation (currently stored but not checked) or fixing that annoying Supabase MCP connector SASL error that's blocking queries.

Feels good to have a complete feature cycle with automated testing and multi-agent review. The workflow is really clicking now.