Groundlane v0.1.0 adds four quality mechanisms: web_extract selector healing (three-layer deterministic fallback, no LLM), corpus_retrieval_test (RAG recall verification inspired by RAGFlow), a document benchmark CLI (character-level F1), and a search benchmark framework (ground truth corpus with multi-provider comparison). Tool count goes from 54 to 55.
Hands-on parameter choices and response structures for web_search (ten adapters, RRF merge, dual-provider default), web_fetch (format/render strategies, finalUrl provenance), and web_extract (CSS selector determinism, no implicit LLM step), with verifiable error boundaries.
A reproducible checklist of the most common operational pitfalls: truncated results from fixed caps, selector errors tied to DOM stability, render-mode cost/determinism tradeoffs, version-change verification (v0.1.0 preview), and the non-negotiable security boundaries (URL policy, auth, concurrency, budget).