Claude Report — 2026-06-01

🚀 Anthropic Official

Claude Code v2.1.157 — Automatic Plugin Loading & Agent Improvements

Introduces automatic loading of plugins from .claude/skills directories without requiring the marketplace, a new claude plugin init <name> scaffolding command, and autocomplete for /plugin arguments. Also adds mid-session worktree switching via EnterWorktree, honors the agent field in settings.json for dispatched sessions, fixes corrupt image handling, WSL image paste, and over 20 additional bug fixes.

Claude Code v2.1.158 — Auto Mode on Bedrock, Vertex, and Foundry

Enables Auto mode on Bedrock, Vertex, and Foundry for Opus 4.7 and Opus 4.8 models. Opt in by setting the environment variable CLAUDE_CODE_ENABLE_AUTO_MODE=1.

Claude Code v2.1.159 — Infrastructure Update

Delivers internal infrastructure improvements with no user-facing changes, released 2026-05-31.

API Release Notes — May 29, 2026

Claude Managed Agents webhooks, multiagent orchestration, and self-hosted sandboxes are now available on Claude Platform on AWS. Adds new IAM actions for Claude Platform on AWS and the AnthropicSelfHostedEnvironmentAccess managed policy.

anthropic-sdk-python v0.105.1

Switches PyPI releases to Trusted Publishing for improved supply-chain security.

anthropic-sdk-python v0.105.2

Patch release with incremental fixes; full diff available at v0.105.1...v0.105.2.

anthropic-sdk-typescript sdk-v0.100.1

Fixes streaming to carry encrypted_content on beta compaction blocks and updates lockfiles with proper standardwebhooks dependencies.

anthropic-sdk-typescript foundry-sdk-v0.2.4

Updates lockfiles with proper standardwebhooks dependencies.

anthropic-sdk-typescript aws-sdk-v0.3.1

Updates lockfiles with proper standardwebhooks dependencies.

🔌 Claude Code Plugins

Plugin tracking skipped this execution (top-10 install cache not loaded).

🛠️ Skills

anthropics/knowledge-work-plugins — 4 New Plugins Added

Adds desktop-commander, qodo-skills, servicenow-sdk, and twilio-developer-kit plugins via PR #244 (commit 250bdfd, 2026-05-29), expanding the official knowledge-worker plugin suite.

ComposioHQ/awesome-claude-skills — Expanded to 1000+ Skills

Grows to over 1,000 production-ready skills and adds a connect-apps plugin enabling Claude to send emails, create issues, and post to Slack via 500+ Composio-backed integrations (updated 2026-05-30).

Piebald-AI/claude-code-system-prompts — Updated to v2.1.159

Updates to Claude Code v2.1.159 (2026-05-31), now tracking 27 built-in tool descriptions and the new sub-agent prompt structure introduced in recent releases.

claude-cookbooks — Agent SDK Hosting Follow-Up

Merges PR #678 (kevintang/agent-sdk-hosting-followup) on 2026-05-30, with preceding commits addressing review comments and ruff lint fixes on 2026-05-29.

VILA-Lab/Dive-into-Claude-Code — May 2026 Model Analysis Added

Adds a section covering the May 2026 model update including sharper judgment, longer autonomous runs, and dynamic workflows in research preview (updated 2026-05-29).

Unchanged in window: alirezarezvani/claude-skills (last updated 2026-05-27), travisvn/awesome-claude-skills (last updated 2026-04-28), levnikolaevich/claude-code-skills (last updated 2026-05-06)

🤖 Agents & Subagents

claude-agent-sdk-typescript v0.3.159

Syncs to parity with Claude Code v2.1.159 (2026-05-31).

claude-agent-sdk-typescript v0.3.158

Syncs to parity with Claude Code v2.1.158, bringing Auto mode support on Bedrock/Vertex/Foundry (2026-05-30).

claude-agent-sdk-typescript v0.3.157

Syncs to parity with Claude Code v2.1.157, including the plugin auto-load and worktree switching features (2026-05-29).

nicobailon/pi-subagents — Async Subagent Delegation

Provides Pi extension for async subagent delegation with truncation, artifacts, and session sharing compatible with Claude Code (active 2026-05-30).

Chachamaru127/claude-code-harness — Autonomous Plan→Work→Review Cycle

Dedicated Claude Code development harness achieving quality development through an autonomous Plan→Work→Review cycle (active 2026-05-29).

Unchanged in window: claude-agent-sdk-python (no releases in window)

🔗 MCPs & Integrations

GitHub MCP Server v1.1.2

Fixes lockdown mode by scoping RepoAccessCache per request (2026-05-29); companion release v1.1.1 on the same day fixes MCP APP Resources and UI resource registration.

AWS Labs MCP — Release 2026.05.29

Introduces a new mssql-mcp-server for AWS RDS and oracle-mcp-server for AWS RDS, and upgrades the AWS CLI to v1.45.17 (2026-05-29).

modelcontextprotocol/servers — Tool Annotations on Knowledge Graph

Adds tool annotations to all knowledge graph tools in the memory server via commit on 2026-05-30 (PR #3874).

anthropics/claude-for-legal — Legal Workflow Plugins

Offers 20+ MCP connectors and 12 practice-area plugins for legal workflows, active as of 2026-05-30.

anthropics/defending-code-reference-harness — Security Threat Modeling

Provides security threat modeling tools for Claude Code, active as of 2026-05-30.

Unchanged in window: upstash/context7 (last release 2026-05-25), microsoft/playwright-mcp (last release 2026-05-07)

💡 Community — Workflows & Ideas

obra/superpowers — Contributor Disclosure Policy

Commit 6fd4507 (2026-05-29) requires contributors to disclose their authoring environment and target agent configuration when submitting changes, formalizing transparency in the 214k-star agentic skills framework.

affaan-m/ECC — Agent Harness Performance Optimization

Provides an agent harness performance optimization system for Claude Code, Codex, Opencode, and Cursor, active 2026-05-30.

colbymchenry/codegraph — Pre-Indexed Code Knowledge Graph

Delivers a pre-indexed code knowledge graph compatible with Claude Code, Codex, Gemini, Cursor, OpenCode, and others, active 2026-05-30.

Lum1104/Understand-Anything — Interactive Knowledge Graphs for Code

Builds interactive knowledge graphs for code exploration compatible with Claude Code and other coding agents, active 2026-05-31.

mukul975/Anthropic-Cybersecurity-Skills — 754 Cybersecurity Skills

Provides 754 structured cybersecurity skills for AI agents including Claude Code and Codex, active 2026-05-31.

📰 Quick Mentions

• anthropics/claude-plugins-official — Official Anthropic-managed directory of high-quality Claude Code Plugins, active 2026-06-01
• anthropics/knowledge-work-plugins — 11 Anthropic-maintained knowledge-worker plugins with bundled MCP connectors, active 2026-06-01
• anthropics/claude-code-action — GitHub Actions integration for Claude Code, active 2026-05-31
• anthropics/skills — Anthropic reference repository for Claude Skills reusable instruction packs, active 2026-05-29
• GetBindu/awesome-claude-code-and-skills — PR #50 merged 2026-05-29 adding moltenbit/should-i-care tool
• Chat2AnyLLM/awesome-claude-plugins — Catalogs 76 marketplaces and 1,205 plugins, updated 2026-06-01
• anthropic-sdk-go v1.46.1 (PR #347) — Fixes streaming to carry encrypted_content through beta compaction accumulator and stop details through message_delta, dated 2026-05-29
• EveryInc/compound-engineering-plugin — Official Compound Engineering plugin for Claude Code and Codex, active 2026-05-31
• hesreallyhim/awesome-claude-code — Issues #1914–#1918 opened 2026-05-29–31; repo undergoing Table of Contents reorganization
• jqueryscript/anthropic-claude-timeline — Public timeline of major Anthropic Claude releases and milestones, active 2026-05-29