●COWORK — Claude Cowork expands to web and mobile with remote sessions, synced files, and a shared Chat and Cowork home across devices●M365 — Claude Cowork adds Microsoft 365 write tools to draft and send email, manage calendars, and update OneDrive and SharePoint files●MCP — Admins can provision MCP connectors org-wide through their identity provider, starting with Okta, with access granted on first login●CODE — Claude Code fixes SessionStart hook streaming in headless sessions so remote workers are not idle-reaped mid-hook●GOV — Claude Code and Claude Cowork are in public beta in Claude for Government Desktop on a FedRAMP High authorized environment●LIMITS — Claude Code weekly usage limits are increased by 50% through July 13●COWORK — Claude Cowork expands to web and mobile with remote sessions, synced files, and a shared Chat and Cowork home across devices●M365 — Claude Cowork adds Microsoft 365 write tools to draft and send email, manage calendars, and update OneDrive and SharePoint files●MCP — Admins can provision MCP connectors org-wide through their identity provider, starting with Okta, with access granted on first login●CODE — Claude Code fixes SessionStart hook streaming in headless sessions so remote workers are not idle-reaped mid-hook●GOV — Claude Code and Claude Cowork are in public beta in Claude for Government Desktop on a FedRAMP High authorized environment●LIMITS — Claude Code weekly usage limits are increased by 50% through July 13

TAG

retrieval augmented generation

1 articles

← Back to all tags

Claude API¹ RAG¹ vector search¹ groundedness¹ evaluation¹ TypeScript¹

⬡ API & SDK/2026-07-09Advanced

When the RAG Started Being Confidently Wrong — Field Notes on Measuring Retrieval Misses With Groundedness

In a Claude API RAG, the answers stay fluent while the facts drift. Often the cause is a silent recall decay on the retrieval side, missing the document that holds the answer. Field notes on measuring groundedness and retrieval hit rate and walking the system back, with working code and real numbers.