●NEST — Subagents can now spawn nested subagents up to depth 3 by default, up from 1, making research/build/verify pipelines practical without extra setup●APISKILL — The bundled claude-api skill now defaults to Claude Opus 5, with a documented migration path from Opus 4.8●ENVVAR — ${VAR} entries in managed MCP allowlists and denylists now resolve from the startup environment and managed-settings env, not the settings-file env●A11Y — A screen reader mode lets you follow a session with assistive tech, including announcements of deleted text●VOICE — Voice mode now runs on Opus, Sonnet, and Haiku alike, reaches connected tools like Gmail and Slack, and supports many more languages●TEACH — Claude for Teachers launched on July 14, alongside a $10M commitment to Canadian AI research●NEST — Subagents can now spawn nested subagents up to depth 3 by default, up from 1, making research/build/verify pipelines practical without extra setup●APISKILL — The bundled claude-api skill now defaults to Claude Opus 5, with a documented migration path from Opus 4.8●ENVVAR — ${VAR} entries in managed MCP allowlists and denylists now resolve from the startup environment and managed-settings env, not the settings-file env●A11Y — A screen reader mode lets you follow a session with assistive tech, including announcements of deleted text●VOICE — Voice mode now runs on Opus, Sonnet, and Haiku alike, reaches connected tools like Gmail and Slack, and supports many more languages●TEACH — Claude for Teachers launched on July 14, alongside a $10M commitment to Canadian AI research

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automation pipeline

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Claude API¹ web_fetch¹ server tools¹ cost control¹ Claude Agent SDK¹ monthly credits¹ headless¹ cost optimization¹ billing change¹

⬡ API & SDK/2026-06-15Intermediate

Letting Claude Read Live Pages: Implementing web_fetch Without the Footguns

How to pull the actual text of official pages and PDFs straight into Claude's context with the web_fetch tool. Covers the URL-validation rule that trips everyone up, the settings that keep token costs down, and why fetch errors arrive as HTTP 200 — based on what I hit running it in production.

⬡ API & SDK/2026-06-12Intermediate

Reallocating My Automation Pipeline Ahead of the June 15 Billing Change

On June 15, the Agent SDK, headless Claude Code, and GitHub Actions move to monthly usage credits. I audited every stage of my publishing pipeline against measured token logs and rerouted each one across three execution paths. Here is the reasoning.