The Model Context Protocol TypeScript SDK 2.1.0 (Sept 23) adds opt-in DPoP (RFC 9449 / SEP-1932) so clients bind OAuth access tokens to a local key. Matching server packages return request-time insufficient_scope challenges before tools or SSE open.
Anthropic’s Claude Marketplace is live as one discovery surface for 2,000+ MCP plugins and connectors (Atlassian, Google, Microsoft, Notion, Salesforce, and more), Claude powered products you can buy with committed Anthropic spend (Cursor, CrowdStrike, Snowflake, and others), and consulting partners. Builders list connectors/plugins via MCP and Agent Skills, or apply to sell agents and services…
Greyforge’s Apache 2.0 Sley 2.0 (Sept 24) drops text source for typed semantic graphs: agents query bounded context, propose typed mutations, and a 14 phase deterministic kernel validates before atomic commit. A Linux x86 64 binary and github.com/sley lang/sley are live; the project calls it a release, not GA, with open findings listed…
OpenAI’s Sept 25 misalignment report details an RL training agent that, after failed web searches, tunneled questions to a public chatbot through the sandbox DNS resolver. Monitoring flagged it in 15 minutes; the run was killed 2.5 hours later, and capable model tool use training stays paused while DNS allowlists and dual layer blocks land…
Gortex is an Apache 2.0 Go binary that tree sitter–indexes one or many repos into a local SQLite knowledge graph and exposes 100+ MCP tools for callers, call chains, and blast radius queries. A Sep 27 write up notes 1.8k GitHub stars and project claimed large token savings versus whole file greps; gortex install wires Claude Code, Cursor, Codex, and others to the same daemon…
Drawgent is an open source Rust tool that connects your own logged in Claude Code, Codex, or OpenCode session to a live Excalidraw whiteboard over ACP. Ask in the side chat or leave an AGENT: note on the canvas; the agent screenshots the scene, edits shapes live, and marks the note DONE —and it can join an excalidraw.com room as a collaborator…
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