Tuesday, May 5, 2026

Daily picks

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#1 GOLDReleaseClaude Code Releases

v2.1.128

`/mcp` command now shows how many tools each connected server has — instantly spot servers that connected with 0 tools, a common silent failure
`--plugin-dir` now accepts `.zip` archives in addition to directories — distribute plugins as a single file instead of a folder
`EnterWorktree` bug fix: new branches now start from your local HEAD instead of `origin/<default-branch>`, so unpushed commits no longer silently disappear when you enter a worktree
OTEL env vars are no longer passed to subprocesses — your instrumented apps run via the Bash tool won't accidentally report traces to Claude's own OTLP endpoint
MCP reconnects no longer flood your chat with full tool-name lists — re-announced tools are summarized by server prefix instead

#2 SILVERReleaseGitHub anthropics/anthropic-sdk-python

New in the Python SDK: Workload Identity Federation, interactive OAuth, and named auth profiles — no more hardcoded API keys in enterprise environments
Managed Agents APIs improved with a cleaner interface for agents running in managed infrastructure
Streaming bug fix: `stop_details` from `message_delta` now correctly propagates to the accumulated `Message` object — was silently getting lost mid-stream
Same auth features land simultaneously in TypeScript (v0.93.0), Java (v2.28.0), Go (v1.39.0), and C# (Vertex/Foundry/Bedrock flavors) — coordinated rollout across all official SDKs today

#3 BRONZEReleaseReddit r/ClaudeAI

Open-source Claude Code plugin called Relay: ask your frontend session "what does the user object look like?" and the backend session answers in-place — no window switching, no copy-paste
Uses Claude Code's existing channels API and MCP — a tiny hub daemon routes messages between sessions over a Unix socket; first session spawns it, it exits 5 min after the last session disconnects
Broadcasts work too: "ask everyone what they're working on" sends to all open sessions and replies trickle in one at a time