news: get_news degrades softly on topic miss (news-13) — any-term ranked fallback, recent+note, language hint in schema; idle-impulse default varies form

2026-07-17 16:26:47 +02:00
parent dc7864efe1
commit f8b9bc75ee
5 changed files with 72 additions and 11 deletions
@@ -98,3 +98,14 @@ Each `get_news` call increments a per-user daily counter; over
 `news-daily-per-user` (default 30) the tool refuses with an error
 result without touching the store. The budget gate (SAF-04) still
 applies to the surrounding model calls.
+
+### NEWS-13 — Topic misses degrade softly, never empty-handed (coverage: test)
+
+A `topic` whose AND-match (NEWS-11) finds nothing falls back to an
+any-term match, ranked by how many keywords hit (ties: newest first);
+if that too is empty, the newest stored items are returned instead.
+Both fallbacks set a `note` field naming the degradation so the model
+can answer honestly ("nothing on that exactly, but…"). A model
+passing a multi-word or wrong-language topic (the live
+`"Nordland road accident"` → `[]` case) thus still gets usable
+context. Exact matches return no `note`.