Editorial illustration for Three Early Claude Code Testers Leave Anthropic Within 10 Days
Three Claude Code Testers Exit Anthropic in 10 Days
Cat Wu posted her exit on X on November 3, naming October 30 as her last day at Anthropic. She wasn't the first to go. Thariq Shihipar and Anthony Morris had already announced their departures on October 24, both leaving the company the same day. All three had worked on Claude Code, Anthropic's AI coding product, putting three people tied to one of the company's highest-profile tools out the door in under two weeks.
The timing matters. Claude Code has become central to Anthropic's business as it fights for ground against rival AI coding tools, and Wu in particular had a wide remit inside the company. Beyond Claude Code, she led Cowork, Anthropic's tool aimed at non-engineering tasks, and worked across marketing, sales and finance teams.
She also helped hire product managers. Wu joined Anthropic in 2024 after testing an early build of Claude Code herself, and her departure post traced how far the tool had come since then, from a project she steered by hand to one now trusted to run on its own.
Anthropic has seen three employees associated with its Claude Code product leave the company within 10 days. The departures include Thariq Shihipar, Anthony Morris and Cat Wu, who worked on the development and product management of the AI coding tool.
Why this matters
Claude Code has become one of Anthropic's most visible products since launch, and losing three people who built it, inside a ten-day stretch, is the kind of signal founders and developers should at least note. None of the three have publicly detailed why they left, and Anthropic hasn't offered more than a confirmation to Business Insider, so we're working with departures, not explanations. That gap matters.
Teams betting workflows on Claude Code don't need a scandal to justify watching this closely; they need to know whether the people who understood the tool's internals best are sticking around to maintain it. Early testers and product leads leaving together, even amicably, often precedes shifts in priority, roadmap, or internal support that outsiders only see months later. For researchers tracking how Anthropic staffs its agentic coding push, this is a data point worth filing next to whatever comes out of the company in the next few weeks: new hires, product updates, or silence.
Watch whether Anthropic names replacements or lets the roles sit open.
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Common Questions Answered
Who were the three employees that left Anthropic's Claude Code team within 10 days?
The three departing employees were Thariq Shihipar and Anthony Morris, who both announced their exits on October 24, and Cat Wu, who posted her departure on X on November 3 with October 30 as her last day. All three had worked on Claude Code, Anthropic's AI coding product, making their near-simultaneous exits particularly notable for the company.
Why is the timing of these Claude Code departures significant for Anthropic?
Claude Code has become central to Anthropic's business and one of the company's highest-profile tools since its launch. Losing three key people associated with the product's development and product management within such a short timeframe signals potential instability in one of Anthropic's most visible offerings.
Have the departing employees or Anthropic publicly explained the reasons for leaving Claude Code?
None of the three employees have publicly detailed why they left, and Anthropic has only offered a confirmation to Business Insider without providing additional explanation. This lack of transparency about the reasons for departure creates uncertainty for teams and developers relying on Claude Code.
What impact could these Claude Code departures have on developers using the product?
Teams betting workflows on Claude Code may be concerned about the stability and future direction of the product given the loss of three key personnel in rapid succession. The departures raise questions about the product's development trajectory and support, even without a confirmed scandal or public explanation.
Further Reading
- Top Anthropic product leader Cat Wu, one of the faces of Claude Code, has left the startup - Business Insider
- Anthropic loses 3 Claude Code team members, just weeks before its mega IPO - India Today
- Claude Code has seen three key members leave in the past two weeks - ChainCatcher
- Anthropic brings Claude Code to the web - TechCrunch
- Anthropic launches code review tool to check flood of AI-generated code - TechCrunch
