Claude Projects Moves From Folders to Coordinated Agent Threads

Anthropic has redesigned Claude Projects around conversation-driven coordination instead of folder-based storage, now in beta through Claude Code. Describe a project goal — optimizing application latency, retiring deprecated API endpoints — and Claude delegates the work across multiple parallel threads, each an independent Claude Code session running on its own repository branch, with merge conflicts resolved the way a standard pull request would handle them. The system creates pull requests and runs tests automatically, and accumulates shared project memory over time rather than starting each session from scratch.

Anthropic’s own engineering blog shows why that kind of coordination layer has become necessary rather than optional. A separate post from Anthropic’s infrastructure team reports that Anthropic engineers now ship 8x as much code per quarter as they did from 2021 to 2025, with Claude authoring 80% of it — a velocity increase that grew the test suite 10x and produced a 25x surge in CI jobs over six months, straining continuous-integration systems built for human-paced commits. The team’s fix, a deterministic test-impact-analysis service that selects only the tests a given pull request actually needs, took three weeks for a single engineer to build after two earlier patches bought progressively less runway.

Read together, the two releases describe the same transition from two different angles: Projects is the coordination layer for directing multiple simultaneous agent threads, while the CI rebuild is what had to happen underneath once code was shipping at agent speed rather than human speed. Rollout for the new Projects starts with select Claude Pro and Max subscribers on cloud sessions, expanding weekly toward web, desktop, Team, and Enterprise plans, with local execution described as coming soon.