AI coding agents

Claude Code 2.1.284 starts interactive terminal and VS Code sessions in auto mode on every plan and provider, extending a default that began on Pro, Max and Team plans.

Cloudflare's Worker Previews, created with npx wrangler preview, give each Git branch an isolated environment with its own URL, configuration, state and observability.

Sonnet 5.5 arrives in Claude Code at unchanged $2/$10 token pricing; Anthropic reports 70.6% on Terminal-Bench 4.0, up from 10.3% for Sonnet 5.

Cursor released two automated bots that watch code from pull request to production and scan every PR for security flaws, six weeks after acquiring startup Firetiger.

The Devin AI-coding startup hit $1B in annualized revenue run rate, weeks after a $2B Series E valued it at $48B.

GitHub added an opt-in, OS-level sandbox to the Copilot desktop app that limits agent file, network, and credential access, failing closed if unsupported.

Claude Opus 5.5 becomes Claude Code's default model and lands in GitHub Copilot the same day, at roughly 40% lower cost than Opus 5.

Visual Studio Code 1.139 extends Dev Container agent sessions to remote hosts and speeds up large agent session lists by up to 12x, Microsoft says.

Security firm Air Security found a zero-click flaw letting a plugin repository owner bypass commit-hash pinning in four AI coding agents.

DoorDash built a two-phase Claude-based multi-agent system that produced usable pull requests for 45 of 50 stale feature flags, averaging $4.79 and 13.8 minutes each.

GitHub says it rewrote the Copilot agent runtime into more than 800,000 lines of Rust using its own Copilot coding agents, at a roughly $120,000 token cost.

Zed Industries opened public beta access to Delta, a collaborative environment for coding with AI agents that the company says is meant to replace pull requests.