●MCP — Support for the 2026-07-28 spec is rolling out across Claude. The protocol moves from bidirectional and stateful to request/response, so MCP servers can now live on serverless and edge infrastructure●EXTENSIONS — Three official extensions have landed: MCP Apps for server-rendered UI, Tasks for async and long-running work, and Enterprise Managed Auth for IdP-based org-wide provisioning●ADOPTION — MCP passed 400 million monthly SDK downloads, roughly 4x growth this year, settling into its role as the standard way to connect agents to applications●QUOTA — Today, August 19, is the last day of the 50 percent weekly usage boost for Claude Code subscribers. If you have long agent runs queued, this is the window●PRICING — Claude Sonnet 5's introductory rate of $2 per million input tokens and $10 output ends August 31; standard pricing of $3 and $15 takes over on September 1, twelve days out●FIX — A bug where MCP v2 connections endlessly reopened subscriptions against servers with fixed timeouts is resolved, and a forward_user_identity setting was added for user attribution●MCP — Support for the 2026-07-28 spec is rolling out across Claude. The protocol moves from bidirectional and stateful to request/response, so MCP servers can now live on serverless and edge infrastructure●EXTENSIONS — Three official extensions have landed: MCP Apps for server-rendered UI, Tasks for async and long-running work, and Enterprise Managed Auth for IdP-based org-wide provisioning●ADOPTION — MCP passed 400 million monthly SDK downloads, roughly 4x growth this year, settling into its role as the standard way to connect agents to applications●QUOTA — Today, August 19, is the last day of the 50 percent weekly usage boost for Claude Code subscribers. If you have long agent runs queued, this is the window●PRICING — Claude Sonnet 5's introductory rate of $2 per million input tokens and $10 output ends August 31; standard pricing of $3 and $15 takes over on September 1, twelve days out●FIX — A bug where MCP v2 connections endlessly reopened subscriptions against servers with fixed timeouts is resolved, and a forward_user_identity setting was added for user attribution

TAG

unattended ops

2 articles

← Back to all tags

Claude Agent SDK¹ feature flag¹ canary release¹ design¹ Claude API¹ Opus 4.8¹ model migration¹ cost design¹

⬡ API & SDK/2026-07-08Advanced

Rolling Out Agent Behavior Changes Gradually with Feature Flags

When an unattended agent changes its prompt or behavior all at once, quiet regressions hide until morning. Here is a design for assigning new behavior to only a fraction of runs, keeping a control group, and adding deterministic bucketing, canary comparison, and automatic rollback.

⬡ API & SDK/2026-07-05Intermediate

Don't Let the Opus 4.7 Fast Mode Retirement (July 24) Kill Your Unattended Jobs

claude-opus-4-7 fast mode retires on 2026-07-24, and speed: fast starts throwing errors. Here's how to keep unattended pipelines from breaking silently: mechanically detect where fast mode is used, add a fail-closed runtime guard, and migrate to 4.8 with working code.