Week of June 26 – July 3, 2026: MCP ships beta SDKs for a leaner stateless spec, the WebExtensions group takes up softer permission prompts, and ChatGPT Business adds a plugin control plane for admins.
Articles by Todd Schiller
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Note This Week in Extensibility: MCP trims to a stateless core, extensions weigh softer permission prompts, ChatGPT adds plugin governance
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Note This Week in Extensibility: hyperscale sandboxes, extensions get a standards track, and prompt-to-plugin
Week of June 19–26, 2026: AWS makes per-user code isolation a managed product, the WebExtensions API gets a chartered W3C Working Group, and Figma turns plugin authoring into a writing task.
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Note Beliefs hitchhike like genes
A new explorer that clusters public thinkers by the genome of their beliefs, inspired by genetic hitchhiking.
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Note agent-browser-shield is live on Product Hunt
agent-browser-shield, a source-available defense layer for AI agents in the browser, is on Product Hunt today.
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Note agent-browser-shield June 3 update: 14 new rules and the Chrome Web Store listing
14 new rules shipped in agent-browser-shield, now installable from the Chrome Web Store, and using it for daily driving.
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Note Introducing agent-browser-shield (alpha): keeping AI agents safe in the browser
Announcing the alpha of agent-browser-shield — a source-available defense layer (also available as an OpenClaw skill) that blocks prompt injection and dark patterns before they reach your agent.
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Note Letting OpenClaw loose on Boston's open data
At the Boston OpenClaw 2026 hackathon, I let an agent autonomously connect to the city's open-data MCP server, devise its own corruption-signal queries on contract data, and package the workflow...
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Note Did Google sneak a local LLM model into Chrome?
A response to FUD around Chrome's new Local AI models, plus a demo using PixieBrix + Local AI to filter my LinkedIn feed.
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ACH as Bayesian reasoning in disguise
The Analysis of Competing Hypotheses worksheet is naive Bayes with a friendlier UI. An interactive artifact to explore.
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Making AI coding work for enterprise-grade browser extensions
Lessons learned using AI coding tools to build PixieBrix, an enterprise-grade browser extension with a complex architecture spanning content scripts, background workers, and React UI.