●SANDBOX — Claude Managed Agents can now run in your own sandbox and connect to private MCP servers (self-hosted beta, MCP tunnels in preview)●PLATFORM — The Claude Developer Platform adds new code execution, web search, and web fetch tools, exposing a 90-second per-cell limit●CONTEXT — response_inclusion trims consumed result blocks to save context in agentic workflows●MCP — Enterprise-managed MCP connectors (Okta) continue: zero-touch access across Claude, Claude Code, and Cowork (Team/Enterprise beta)●CODE — Claude Code adds /cd, a post-session hook, and a safe mode while tightening MCP policy enforcement●MODEL — Opus 4.8, Sonnet 4.6, and Haiku 4.5 lead the lineup; Fable 5 is available from Claude Code●SANDBOX — Claude Managed Agents can now run in your own sandbox and connect to private MCP servers (self-hosted beta, MCP tunnels in preview)●PLATFORM — The Claude Developer Platform adds new code execution, web search, and web fetch tools, exposing a 90-second per-cell limit●CONTEXT — response_inclusion trims consumed result blocks to save context in agentic workflows●MCP — Enterprise-managed MCP connectors (Okta) continue: zero-touch access across Claude, Claude Code, and Cowork (Team/Enterprise beta)●CODE — Claude Code adds /cd, a post-session hook, and a safe mode while tightening MCP policy enforcement●MODEL — Opus 4.8, Sonnet 4.6, and Haiku 4.5 lead the lineup; Fable 5 is available from Claude Code

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Priority Tier

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Claude API¹ service_tier¹ cost optimization¹ production¹

⬡ API & SDK/2026-06-21Advanced

Reserving Priority Capacity for User Traffic with service_tier

If you pay for Priority Tier but your user-facing responses still slow down at peak, the culprit is often your own background jobs eating the priority pool. Here is how to read service_tier, prove the contention, and isolate background work.