Claude Report — 2026-06-17
- Anthropic reverses the Agent SDK billing overhaul on the exact day it was set to take effect (June 15) — subscriptions unchanged until further notice
- `claude-sonnet-4-20250514` and `claude-opus-4-20250514` model IDs retired June 15 — all API calls now return an error; upgrade to Sonnet 4.6 or Opus 4.8
- Claude Code v2.1.179 (June 16): 9 targeted bug fixes — mid-stream connection drops, Linux sandbox glob crash, WSL2 scroll regression, and more
- Official MCP servers patch four CVEs and harden `git_add`; memory server now exposes knowledge graph as an MCP Resource
- New airwallex-agentos plugin lands in the official catalog (June 17): Airwallex financial operations in plain language from Claude Code
🚀 Anthropic Official
Agent SDK Billing Overhaul Paused — on Day One
Announced May 14, effective June 15: Anthropic pulled the planned split that would have moved Agent SDK, claude -p, and third-party apps off subscription pools onto separate monthly credits ($20–$200 by plan tier, metered at API list prices). The company stated "Nothing changes for now" and confirmed it is "reworking the plan"; coverage cites OpenAI's looming price-war moves and pre-IPO customer-retention concerns as contributing pressure. Agent SDK and headless usage continue drawing from existing Pro/Max/Team/Enterprise limits unchanged.
Claude Sonnet 4 and Opus 4 Retired (June 15)
Model IDs claude-sonnet-4-20250514 and claude-opus-4-20250514 now return an error on every API request; Anthropic directs users to Claude Sonnet 4.6 and Claude Opus 4.8 as replacements, with ongoing access for researchers available through the External Researcher Access Program.
Claude Code v2.1.179 (June 16)
Nine-fix patch release: preserves partial responses on mid-stream connection drops instead of surfacing a raw error (spinner no longer sticks at "running tool"); fixes mouse-wheel scroll regression in WSL2 under Windows Terminal and VS Code (introduced in v2.1.172); fixes Linux sandbox crash when a denyRead/allowRead glob spans a large directory tree (the Bash tool description was growing unbounded, making sessions unusable); fixes feedback survey capturing a single-digit keystroke as a session rating immediately after a turn; limits welcome-screen banners to one per session; fixes Ctrl+O not showing a subagent's transcript; restores prompt-input focus after clicking away to the subagent or footer panel; fixes remote background tasks appearing stuck as "still running" between turns; and improves plugin loading performance in remote sessions.
🔌 Claude Code Plugins
airwallex-agentos — new addition
Adds Airwallex's financial infrastructure to Claude Code via MCP servers: manage invoices, onboard suppliers, and check cash positions in plain language; ships with pre-built finance skills ready to use out of the box.
Unchanged in window (automated subtree pointer bump — no verifiable feature change): superpowers, forge-skills, firecrawl, rc, sap-fiori-mcp-server, teamcity-cli, revenuecat, sentry, nimble, hyperframes
🛠️ Skills
claude-code-system-prompts — v2.1.179 update
Updated June 16 to track v2.1.179; records a +5,328 token increase in Claude Code's aggregate system-prompt count — a partial recovery after the record −20,964 token drop logged for v2.1.178 the previous day, pointing to additive content in the nine new fix-paths.
Unchanged in window: anthropics/knowledge-work-plugins, glebis/claude-skills, anthropics/skills, ComposioHQ/awesome-claude-skills
🤖 Agents & Subagents
claude-agent-sdk-python v0.2.103
Released June 16. Bundles Claude CLI v2.1.179; consumers automatically receive all nine bug fixes from that CLI release (connection-drop preservation, sandbox glob fix, WSL2 scroll, etc.) on upgrade with no additional code changes.
Unchanged in window: nicobailon/pi-subagents, Chachamaru127/claude-code-harness
🔗 MCPs & Integrations
modelcontextprotocol/servers — CVE patches + memory knowledge graph Resource
Two distinct changes in the window: (1) PR #4376 (June 14 commit, merged June 16) patches four vulnerabilities — idna quadratic DoS, starlette Host-header-validation bypass enabling path-check circumvention, vitest UI-server arbitrary-file-read→RCE, and qs/hono DoS/IPv6-bypass issues — plus adds explicit path-boundary checks to git_add (defense-in-depth) with two regression tests ensuring out-of-tree paths are never staged; (2) PR #3323 (merged June 17) exposes the memory server's knowledge graph as an MCP Resource, making it directly readable by any MCP client without a round-trip tool call.
Unchanged in window: github/github-mcp-server, modelcontextprotocol/typescript-sdk, awslabs/mcp, portainer/portainer-mcp
💡 Community — Workflows & Ideas
No relevant community posts with verified publication dates in the window.
📰 Quick Mentions
Relevant links that don't warrant a section of their own:
- claude-code-action v1.0.150 — patch released June 16, day after v1.0.149; changelog comparison link available but content could not be verified
- The New Stack — "Anthropic pauses Claude Agent SDK subscription change" — June 16 article by Paul Sawers with additional detail on the day-of reversal
- UsageBox — "Anthropic's June 15 Double Hit" — covers both the billing pause and the Sonnet 4/Opus 4 retirement together with practical upgrade guidance