◉CLAUDE LABJP
●2.1.310 — Monitor tool now works on Bedrock, Vertex and Foundry, and gateway failures are fixed (10/23)●2.1.307 — Fixes MCP failing to reconnect after sleep or a keychain lock (10/21). 2.1.306 also fixed the false claude -p login message●SONNET 4.5 — Retires on the Claude API on 11/30, 36 days left. Migrate to Sonnet 5.5●WINDOWS — Reports say hooks break silently only on Japanese-locale Windows; check the character encoding first●API — In API version 2026-10-21, passing temperature, top_p or top_k returns a 400 error●NEW — I Put a Ten-Line Promise File at the To…●2.1.310 — Monitor tool now works on Bedrock, Vertex and Foundry, and gateway failures are fixed (10/23)●2.1.307 — Fixes MCP failing to reconnect after sleep or a keychain lock (10/21). 2.1.306 also fixed the false claude -p login message●SONNET 4.5 — Retires on the Claude API on 11/30, 36 days left. Migrate to Sonnet 5.5●WINDOWS — Reports say hooks break silently only on Japanese-locale Windows; check the character encoding first●API — In API version 2026-10-21, passing temperature, top_p or top_k returns a 400 error●NEW — I Put a Ten-Line Promise File at the To…
TAG

groundedness

1 articles
← Back to all tags
Related:
Claude API1RAG1evaluation1TypeScript1
⬡ 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.