Jarvis

Jarvis was NerdWallet’s first production AI support agent, built to assist the Infrastructure Engineering team by handling inbound developer requests in internal support channels. Over its two-year lifecycle, Jarvis demonstrated how agentic workflows operate in production, auto-resolving approximately 25% of inbound developer support tickets without human intervention.

Technical Implementation

Jarvis operated on a LangGraph supervisor agent architecture integrated via the Model Context Protocol (MCP):

• Live State Integration: Connected directly to PagerDuty and service catalog APIs to retrieve live cluster health, on-call schedules, and service catalog ownership, ensuring recommendations reflected real-time production conditions rather than static documentation.
• Incident Response Collaboration: Participated in real-time production incident channels, surfacing relevant runbooks, recent deployment diffs, and health metrics to incident commanders.
• Security & Red Team Verification: Completed a rigorous security architecture review followed by an internal Red Team engagement to validate prompt-injection resistance and least-privilege tool execution.

The Full Lifecycle: Build, Scale, and Sunset

As Jarvis matured, ongoing feature development was handed off to a junior engineer on the team.

By June 2026, NerdWallet completed its company-wide rollout of Claude with native MCP connectors and an organizational skills platform. Rather than maintaining a bespoke Slack agent alongside the standardized company platform, we deliberately decommissioned Jarvis.

Knowing when to retire what you build is an essential platform engineering discipline. Jarvis fulfilled its mission by proving production agent value, paving the way for the enterprise platform that succeeded it.