Ch1

.env.example

@@ -87,6 +87,8 @@ SEARXNG_URL=
 # Knowledge synthesis after a verified relation has formed a useful source cluster.
 # Relation thinking always remains separate and only creates graph edges.
 BRAIN_ARTICLE_SYNTHESIS_ENABLED=true
+# Language tag for generated KB drafts (for example de-DE or en-US).
+BRAIN_ARTICLE_LANGUAGE=de-DE
 BRAIN_ARTICLE_MIN_SOURCES=3
 BRAIN_ARTICLE_MAX_SOURCES=8
 BRAIN_ARTICLE_MIN_PRODUCTION_RATIO=0.70
@@ -97,19 +99,34 @@ BRAIN_ARTICLE_MIN_ANSWER_CHARS=420
 # Maximal number of precise queries per research round.
 BRAIN_ARTICLE_MAX_RESEARCH_QUERIES=6
 # Raw SearXNG candidates per query.
-BRAIN_ARTICLE_RESEARCH_RESULTS=8
+BRAIN_ARTICLE_RESEARCH_RESULTS=12
 # Iterative search/reformulation rounds.
 BRAIN_ARTICLE_RESEARCH_ROUNDS=3
 # Highest-ranked pages whose full content is downloaded.
-BRAIN_ARTICLE_RESEARCH_FETCH_RESULTS=4
-BRAIN_ARTICLE_RESEARCH_MIN_RELEVANCE=0.65
-BRAIN_ARTICLE_RESEARCH_MIN_QUALITY=0.45
+BRAIN_ARTICLE_RESEARCH_FETCH_RESULTS=6
+# Reserve up to this many fetch slots for promising candidates below the final
+# relevance threshold. They are re-evaluated against the extracted full text.
+BRAIN_ARTICLE_RESEARCH_EXPLORATION_RESULTS=3
+# Lower title/snippet threshold used only before the full-text fetch.
+BRAIN_ARTICLE_RESEARCH_PREFETCH_MIN_RELEVANCE=0.25
+BRAIN_ARTICLE_RESEARCH_MIN_RELEVANCE=0.55
+BRAIN_ARTICLE_RESEARCH_MIN_QUALITY=0.35
 BRAIN_ARTICLE_RESEARCH_PAGE_MAX_BYTES=2097152
 BRAIN_ARTICLE_RESEARCH_PAGE_MAX_CHARS=14000
 BRAIN_ARTICLE_RESEARCH_FETCH_TIMEOUT=20s
 # Keep false unless private/intranet research URLs are intentionally trusted.
 BRAIN_ARTICLE_RESEARCH_ALLOW_PRIVATE=false
 
+# Research orchestration. All SearXNG requests, web fetches and Ollama calls
+# share this bounded queue. With one Ollama node, 2 is a conservative default:
+# one model request may run while one web request progresses.
+BRAIN_RESEARCH_OLLAMA_MAX_INFLIGHT=2
+BRAIN_RESEARCH_OLLAMA_QUEUE_SIZE=64
+# Semantically equivalent research intents reuse a running/recent result bundle.
+BRAIN_RESEARCH_DEDUPE_THRESHOLD=0.92
+BRAIN_RESEARCH_DEDUPE_TTL=45m
+# site: filters are always stripped at runtime. Research remains domain-open.
+
 # Autonomous, persistent background research. Tasks are stored in graph.db and
 # handed to Ollama asynchronously with low priority. Disabled by default.
 BRAIN_AUTONOMOUS_RESEARCH_ENABLED=false