Mnemolis v3.53.1

[3.53.1]

Fixed — The "Love Story (1944 film)" Incident: Colloquial Framings Now Strip as Whole Phrases

Explanation chains' very first real-world trace caught a live Kiwix bug: "whats the story with molybdenum" returned Love Story (1944 film) — a movie whose plot happens to involve molybdenum mining — instead of the element. The chain showed routing was correct (intent_llm → kiwix), isolating the failure to Kiwix's own search in about a minute. Two independent leaks, both confirmed by direct execution:

1. "whats" (no apostrophe) leaked a literal "what" into the search terms. The contraction-normalizing regex in _build_search_terms() only fires on an actual apostrophe; "whats" wasn't a stop word; and _stem() runs after stop-word filtering, so it stemmed the survivor into "what" on the way out. Fixed by adding the apostrophe-less contraction forms (whats, hows, whos, wheres, thats, its, dont, cant, …) to _STOP_WORDS directly — deliberately excluding real-topic homographs (id, im).
2. "story" was never stripped at all. The colloquial-question handling was word-level ("deal", "keep", "hearing", "up" as bare _STOP_WORDS entries), and "story" wasn't among them. The search Kiwix actually received was what story molybdenum, and the film earned its winning points from "story" in both the search terms AND _score_result()'s title overlap.

The fix re-applies the lesson DISCOURSE_FRAMING_PATTERNS' own comment already documented: strip whole phrases, not individual meaningful words. New COLLOQUIAL_QUESTION_PHRASES removes "what's the story with" / "whats the deal with" / "what is up with" / "keep hearing about" and variants (apostrophe, apostrophe-less, and spelled-out forms — the apostrophe-less form is what actually triggered the incident) as units, applied in both _build_search_terms() and _score_result()'s scoring set. _is_definitional_query() still deliberately receives the original phrasing — those leading phrases are precisely what make such queries definitional, pinned by a test asserting the colloquial phrasing scores identically to formal "what is X".

Auditing the retired word-level entries found they'd been silently breaking every query where those words WERE the topic, confirmed directly: "what is the New Deal" had been searching Kiwix for the literal term new, and "what is a hearing aid" for aid, and "what is up with the up quark" lost half its subject. "deal", "keep", "hear"/"heard"/"hearing", and "up" are no longer stop words; regression tests pin New Deal, hearing aid, and up quark surviving as topics. A knock-on: with "up" restored as a content word, zero INTENT_MAP keyword phrases are stop-word-only anymore (previously exactly two: "is it up", "are they up") — the _filter_meaningful() safety net deliberately stays for future additions, and its census test now pins the empty set with the full story.

11 new term-building tests + 3 new scoring tests, including the exact live incident pinned end to end (the element must out-score the film under the original query — confirmed the film genuinely won before the fix, 15 vs 40 after). wiki/The-Discourse-Framing-Investigation.md gained a postscript, including the operational note that a bad result from this bug persists in the result cache under its exact phrasing until the kiwix TTL — POST /cache/clear after deploying.

Changed — docker-compose.example.yml Gained the LLM and Embedding Sections

The example compose file never had the LLM settings at all (LLM_URL, LLM_MODEL, LLM_API_TYPE, LLM_KEEP_ALIVE), and v3.53.0's embedding settings weren't added either — a fresh GitHub deployment following the example got keyword-only routing with no hint the LLM or semantic layers existed. Both sections added with the same inline-comment guidance style as the rest of the file, including the docker exec ollama ollama pull nomic-embed-text one-liner and a pointer to the Semantic Routing Cache wiki page.

Changed

• Version bumped to 3.53.1. Test suite: 1440 passing (from 1429 at v3.53.0), ruff clean.