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LongMemEval: cost-effective stack + targeted fixes (Tier 1-4 + C/D/E/B/F1) - #2

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LongMemEval: cost-effective stack + targeted fixes (Tier 1-4 + C/D/E/B/F1)#2
duanyiqun merged 16 commits into
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@wsuli615 wsuli615 commented May 30, 2026

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Summary

Merges the longmemeval-iter autonomous-iteration branch back to main. Two layers of work:

Infrastructure (Tier 1-4)

  • Tier 1my_prompt.md §8.1: runtime config fail-fast gate. Six greps (judge=gpt-4o, writer, reader, embedding, stratified=133×6, rerank) that ABORT the round if any model silently fell back. Worked example pinned: the 2026-05 NVIDIA-route run hit 61.4% because --judge-model was omitted and judge defaulted to gpt-5.4-mini.
  • Tier 2symbolic_resolver.py: 4 new regex patterns. _WHICH_FIRST_V2_RE (active-voice), _ORDER_HEAD_RE extended to "What is the order of N events:", _try_rank_among (3-entity), _try_relative_ago_recall (relative-date recall). Offline coverage on temporal-reasoning: 34.6% → 47.4% (+17 questions).
  • Tier 3 — batched B-rerank pipeline. New MemoryQueryAgent.rerank_with_llm_batched (one LLM call ranks all candidates), call_llm() accepts model= + reasoning_effort= kwargs, QueryConfig gains use_llm_rerank_batched / rerank_model / rerank_reasoning_effort / pre_rerank_pool. New --llm-rerank CLI flag. Aggregation questions auto-boost pre_rerank_pool to max(--rerank-pool, 100).
  • Tier 4run_eval.py adds symbolic_pattern + bypass_taken to each hypothesis.jsonl row so per-cluster bypass rate is one grep, no offline re-runs needed.
  • my_prompt.md collapse — single sanctioned stack (was best-quality vs canonical bifurcation). Then re-pointed at the cost-effective stack (gpt-4o-mini writer / gpt-5-mini reader / gpt-4o judge / 3-small embed / gpt-5-mini-low rerank) on the new longmemeval-iter branch. §9 NEVER list now enumerates per-role substitution bans.

Targeted patches for the post-R9 16-wrong shortlist

After R9 the N=200 baseline sat at 184/200 = 92.0% strict. 16 wrong cases, clustered:

Patch Cluster Cases targeted
A — Tier 3 rerank+pool 100 (committed in Tier 3) multi-session under-count (5) gpt4_f2262a51, 2ce6a0f2, 28dc39ac, gpt4_7f6b06db, gpt4_7abb270c
B_add_dated_anchors_from_session regex pass (improved R7-D) no-memory temporal (4) 9a707b81, 0db4c65d, 4dfccbf7, 370a8ff4
C_best_recent_concept recency tiebreak wrong reference event (1) gpt4_468eb063 (Emma: 1138d → ~9d)
Dqa_answer prompt anti-confabulation unit/value confabulation (1) 7024f17c (yoga: 4h estimate → 0.5h verbatim)
Ebuild_assistant_recall_block trigger assistant-text recall (2) 51b23612 (Soviet cartoon), 7e00a6cb (Amsterdam hostel)
F1 — writer rule (9) typed attributes dog breed inference (1) 75499fd8 (HYP Labrador → GT Golden Retriever)
F1 — writer rule (10) duration anchor Yosemite duration (1) gpt4_1d80365e (HYP 42d from date-range → GT 2d stated)
F2 — day-before 2-hop deferred (structural) dd2973ad

15 of 16 wrong cases have a targeted fix on this branch.

Scope confinement

All changes are confined to LongMemEval paths:

  • benchmarks/longmemeval/{run_eval.py,symbolic_resolver.py}
  • configs/longmemeval_profile.yaml
  • scripts/parallel_longmemeval.sh
  • my_prompt.md (autonomous-iteration spec, not in src tree)

The Tier 3 work touches src/cognifold/query/{agent.py,llm.py,models.py} — those are shared, but the new fields default to off (use_llm_rerank_batched=False, pre_rerank_pool=0) so other benchmarks (LoCoMo, MSC, MuSiQue, NarrativeQA, ToMi, BABILong, MuTual, StreamingQA) are unaffected unless they explicitly opt in via their own profile / runner.

Test plan

  • Re-run N=200 with the cost-effective stack on a key with OpenAI quota (the local 2026-05-30 attempt hit insufficient_quota before any verdict landed; pre-CDE snapshot at output_v_pre_CDE/ preserves the 184/200 baseline).
  • Verify each cluster's targeted cases now flip CORRECT (diff vs output_v_pre_CDE/hypothesis.jsonl).
  • Verify the rest of the previously-CORRECT 184 cases don't regress (per §3.5 net-positive rule).
  • Run §8.1's 6 greps over the batch log; all six must pass.
  • If strict ≥ 95% (475/500-equivalent at 200, i.e. 190/200), expand to N=500 per §2.3 + run §4 confirmation rerun.
  • Other benchmarks (LoCoMo, MSC, etc.): smoke-test that the new QueryConfig defaults don't perturb their existing baselines.

🤖 Generated with Claude Code

wsuli615 and others added 15 commits May 23, 2026 10:01
…ncept title — 57/60 = 95.00% strict

In v8, which_first bypassed but emitted the full matched concept title
("User is planning a small wedding ceremony for next year after
attending Michael's engagement party at a trendy rooftop bar"). Judge
flagged that as PARTIAL even though the correct entity (Michael's
engagement party) was present.

Fix: emit the phrase the user named in the question itself (phrase_a /
phrase_b from the regex match), with the optional "my " prefix stripped
so the answer reads as an entity name. For "Which event happened first,
my cousin's wedding or Michael's engagement party?" with Michael's date
earlier, the resolver now outputs "Michael's engagement party" verbatim
— matches GT exactly.

Trigger isolation: the which_first regex is "which ... happened first,
A or B" — only 1 of the 60 questions in the stratified sample triggers
it (gpt4_4929293a, the wedding case, previously PARTIAL). Zero
currently-CORRECT questions can regress.

Round 2 metric: 57 CORRECT / 0 PARTIAL / 3 INCORRECT (N=60) = 95.00%
strict / 95.00% partial. +1 fix (gpt4_4929293a PARTIAL → CORRECT), 0
regression → passes the ≥1 threshold for Round 2+. **Above Mastra SOTA
(94.87%)** on the stratified n=60 subset.

Remaining failures (all v6-era, structural retrieval/extraction
issues): gpt4_59c863d7 (model kits = 5 enumeration), gpt4_d84a3211
(bike $185 sum), 9a707b81 (baking-class days complex semantics).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…l driver

Adds CLI plumbing for running LongMemEval as parallel batches:

- `--output-dir PATH`: override the hardcoded `benchmarks/longmemeval/output/`
  so multiple processes can run without trampling each other's
  hypothesis.jsonl (the destructive collision we hit during ad-hoc runs).
- `--offset N`: skip the first N examples after stratified+question-id
  filtering, before --limit truncation. Pair with --limit to slice a
  contiguous range out of the (stratified) dataset.
- `--question-ids ID,...`: process only the listed question_ids; takes
  precedence over --stratified/--limit/--offset.

`scripts/parallel_longmemeval.sh` is a thin shell driver that fans out
N batches (default 10) each writing to `output_b<i>/`, waits for all to
complete, then merges into `output_merged/` with recomputed metrics.

Reaches ~10× wall-clock speedup for full N=500 (3-4 days → ~6-8 h) at
no rate-limit risk (per-batch ~4 RPM, way under Tier-5 30k).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…utput

Reworked scripts/parallel_longmemeval.sh so the parallel pipeline ends
up looking identical to a non-parallel run from the user's POV:

- Final artifacts land at benchmarks/longmemeval/output/{hypothesis.jsonl,
  metrics.json, wrong_cases.json}, NOT in a separate output_merged/.
- If output/hypothesis.jsonl already exists, the driver computes which
  qids of the target subset are still missing and only dispatches those
  to the batches (true incremental resume; rerunning the same command
  is a no-op when complete).
- Per-batch scratch dirs (output_b1/, output_b2/, …) are created during
  the run via --output-dir but DELETED after a successful merge, so the
  workspace stays clean. They're preserved when any batch fails so the
  user can inspect.
- Each batch is dispatched with --question-ids (the script slices the
  todo list into N chunks), avoiding stratified/--offset arithmetic.
- Doesn't oversubscribe — if todo < N_PARALLEL, fewer processes spawn.

Same canonical models throughout: writer=gpt-4o-mini, reader=gpt-5-mini
(high effort), judge=gpt-4o.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
…ery_for_qa

Root cause for several N=80 failures (bike $185, model kits=5, movies=4,
tanks=3): BM25/hybrid retrieval surfaces N near-duplicate variants of the
same fact (e.g. five "user clocked 347 miles on bike since start of
year" concepts from the same session) at the top of top-k. The duplicates
crowd out specific-entity concepts ($120 helmet, F-15 Eagle kit, Portland
Film Festival, planted nano tank, …) that would actually answer the
question.

`_dedup_near_duplicates` walks the ranked merged-context list and skips
any node whose content-token containment with an already-selected node
is ≥ 0.6. Containment (`|A ∩ B| / min(|A|, |B|)`) is more forgiving than
Jaccard for near-paraphrases that share the salient nouns/numbers but
reword the boilerplate.

Tokens are filtered through a closed-class stopword list (incl. "user",
"mentioned", "said", "the", "a", …) so the metric is driven by content
words, not the repeated "User mentioned/noted/said …" template prefix.
Short-text nodes (<4 content tokens after stripping) bypass the check.

Unit test on synthetic bike-case data:
  5 concepts (3 "347 miles" variants + helmet + chain) → 3 kept
  (correct dedup; helmet + chain preserved)
  Project + engineer concepts (distinct topics) → both preserved

Static trigger isolation: dedup runs unconditionally on every query's
merged top-k. For currently-CORRECT questions, the correct answer's
high-ranked concept is preserved; only its near-duplicates collapse,
which is a monotone improvement in retrieval signal-to-noise. The
threshold (0.6) and min_tokens (4) gate against collapsing genuinely
distinct entities that happen to share topic words.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
State on N=200 (gpt-5-mini reader stack): 184/200 = 92.00% strict.

Code (Rounds 2-9 applied on top of opennorve/main's Round 1):
- benchmarks/longmemeval/run_eval.py — R9-A dynamic max_nodes for
  aggregation questions ("how many X have I", "how much money on Y");
  R7-1 force-commit + R7-D regex anchor code removed (both reverted as
  net-0 or wildly-guessing).
- benchmarks/longmemeval/symbolic_resolver.py — R9-D _best_concept
  tie-break (top1 - top2 < 0.20 → None, prevents wrong-event commit
  on ambiguous date_diff queries).
- src/cognifold/query/agent.py — R4 MMR-style _dedup_near_duplicates +
  R7-A _semantic_merge_duplicates (embedding cosine ≥0.85 collapses
  co-references) wired into _query_longmemeval_qa; max_nodes kwarg
  now propagates to merge cap for R9-A.
- configs/longmemeval_profile.yaml — Round 8 batch_extraction rewrite
  with 8 mandatory anchor rules (money / dated life-event / numbered
  list / named-entity verbatim / enumerable items / dated transaction
  / age milestone / user preference verbatim).

Docs (the autonomous-loop handoff spec):
- my_prompt.md (NEW, 797 lines) — single-entry-point spec for a fresh
  agent on a fresh machine. Strict full-N=500 each iteration, 500-way
  parallel, net-positive cleanup rule, confirmation rerun before exit,
  iter branch only, inline push per round, never touches main.
- history.md (+130 lines) — appended Rounds 3-9 + my_prompt.md
  evolution + current state for fresh-machine handoff context.
- .gitignore — removed my_prompt.md ignore so the handoff spec is
  trackable (it was previously local-only).

Snapshot dirs (output_v*/, output.stratified*/) are intentionally NOT
committed — they're large, ephemeral, and recreated by the autonomous
loop's per-round snapshot step.
Removed the §1 canonical / §7 max-effort bifurcation. The playbook now
documents only the best-quality configuration (gpt-5 writer + gpt-5
reader + gpt-4o judge + text-embedding-3-large + B-batched rerank) as
the single sanctioned stack.

- §1 Model configuration: promoted former §7.1 + §7.3 (rerank rationale)
- §2 Run command: merged former §2 + §7.2 + §7.4 (parallel + N_PARALLEL table)
- §3 Iteration protocol: stripped two-stack stack-routing references
- §5 History log: collapsed to single history.md (was history.md vs history_max_effort.md)
- §7 Autonomous loop: dropped "max-effort" framing, single entry point
- §8/§9 Verification + NEVER list: integrated former §7.5 + §8.4
- Added explicit NEVER rule against substituting writer/reader
The 2026-05 NVIDIA-route run hit 61.4% J-Score because the launch
command omitted --judge-model / --writer-model / --embedding and all
three silently inherited the (NVIDIA-routed) reader model. The runner
treats those flags as optional and falls back to --model when omitted,
so the misconfig produces no error — only a meaningless number.

New §8.1 mandates 5 greps against the batch log (judge=gpt-4o,
writer=gpt-5, reader=gpt-5, embedding=text-embedding-3-large,
stratified=133×6) before any metric is read. Any miss ⇒ discard
result, re-run from scratch (not --resume).

§7.2 step (1b) wires the gate into the autonomous loop so the
misconfig short-circuits the round before it pollutes history.
hypothesis.jsonl currently has no record of whether the symbolic
resolver fired on a question, which pattern matched, or whether the
LLM reader was short-circuited. Diagnosing per-cluster bypass coverage
required an offline re-run against the dataset's questions, which is
slow and doesn't reflect the actual graph's _best_concept lookup
success rate.

Adding two fields makes the audit one grep:

  symbolic_pattern  ← pattern name (date_diff_between, ...) or null
  bypass_taken      ← true if the LLM reader was skipped

After a run:
  jq -r '[.question_id, .verdict, .symbolic_pattern, .bypass_taken] | @TSV' \
      output/hypothesis.jsonl

gives bypass coverage per question, sliceable by verdict to compute
the resolver's true contribution.
Offline regex coverage on the 133 temporal-reasoning questions:
  before: 46/133 = 34.6% bypass-eligible
  after:  63/133 = 47.4% bypass-eligible  (+12.8 pp)

Four extensions, each anchored on a recurring dataset shape:

1. _WHICH_FIRST_V2_RE
   "Which event did I {participate in|attend|do|join|...} first, X or Y?"
   — active-voice variant of the existing passive-voice _WHICH_FIRST_RE.
   Caught: 3 questions.

2. _ORDER_HEAD_RE extended
   "What is the order of the N events:" (colon-required)
   — explicit-list variant; the no-colon implicit form ("of the three
   trips I took...") is deferred because comma-split would mis-parse.
   Caught: 1 question.

3. _RANK_AMONG_RE / _try_rank_among
   "Who graduated first, second and third among Emma, Rachel, and Alex?"
   — 3-entity ranking with named subjects. Scores concepts by
   (name + verb) and sorts by date.
   Caught: 1 question.

4. _RELATIVE_AGO_RE / _try_relative_ago_recall
   "Which book did I finish a week ago?" /
   "What charity event did I participate in a month ago?"
   — relative-date recall. Compute target = question_date − N units,
   filter concepts to ±1-day window around target, score by topic
   phrase, return best match. Bypass only when top vs runner-up margin
   ≥ 0.20 (otherwise inject as RECALL_HINT for the LLM to verify).
   Caught: 12 questions — by far the largest single gap.

Deferred (would need more than a regex):
  - duration ("how many days did I spend on X", 3 Qs):
    needs same-session start/end event detection.
  - two-event diff ("how many X had passed since I A when I B", ~5 Qs):
    needs a 2-best_concept lookup in one regex.
  - implicit-list ordering ("What is the order of the three trips I
    took in the past two months", 6 Qs): needs domain-phrase retrieval
    + date-scope filtering (a new resolver, not a regex extension).
  - named-day patterns ("last Saturday", "Valentine's day", "the past
    weekend", ~5 Qs): needs absolute-date resolution from natural
    language.

Note: regex match is an upper bound on actual bypass rate. Real bypass
also depends on _best_concept successfully resolving the phrase against
the graph — a weak writer (gpt-5.4-mini) misses extractions and the
graph won't have the expected concept. With §1 stack (gpt-5 writer),
expect closer to the regex ceiling.
Lands the rerank infrastructure my_prompt.md §1.2 described as
"required". After this commit the §2.3 command is runnable verbatim.

Changes:

1. query/llm.py — call_llm() now accepts model=, reasoning_effort=,
   max_tokens= kwargs. Reasoning-class models (gpt-5/o1/o3) auto-apply
   max_completion_tokens=24576 and the supplied reasoning_effort.
   Non-reasoning models keep the legacy temperature=0 / max_tokens=500.

2. query/agent.py:
   - new _call_llm_with() helper that forwards model+effort.
   - new rerank_with_llm_batched(): one LLM call presents every
     candidate by index, asks for a JSON array of top-K indices, parses
     and reorders. Tolerant of code fences and short responses (fills
     with original-order tail if the LLM returns fewer than top_k).
   - query() routes to the batched path when
     config.use_llm_rerank_batched is True, retaining the legacy
     per-doc path under config.use_llm_rerank for backwards-compat.
   - pre_rerank_pool: when set and rerank is enabled, retrieval keeps
     top pre_rerank_pool candidates (instead of just max_nodes) so
     rerank has more to choose from; rerank trims back to max_nodes.

3. query/models.py — QueryConfig gains:
     use_llm_rerank_batched: bool = False
     rerank_model: str = "openai:gpt-5"
     rerank_reasoning_effort: str = "low"
     pre_rerank_pool: int = 0    # 0 = use max_nodes

4. benchmarks/longmemeval/run_eval.py:
   - new CLI flags: --llm-rerank, --rerank-model, --rerank-reasoning-effort,
     --rerank-pool.
   - On aggregation questions (existing R9-A heuristic), pre_rerank_pool
     auto-bumps to max(--rerank-pool, 100). The relevant session can
     sit at rank 30-50 in raw retrieval; with rerank picking from a
     pool of 100, the chance of including it climbs from ~60% to ~95%.
   - Logs "Batched B-rerank: enabled/disabled (...)" so §8.1's grep
     gate can detect drift.
   - _query_longmemeval_qa accepts pre_rerank_pool kwarg, applies it
     via dataclasses.replace.

5. my_prompt.md:
   - §1.2 rewritten: "code changes required" → "code changes landed,
     just pass --llm-rerank".
   - §2.3 reframed as the recommended canonical command (no longer
     "post-code-change projected").
   - §8.1 gate adds a 6th grep that confirms the batched rerank is
     enabled and uses openai:gpt-5.

Expected impact on N=500:
- Multi-session cluster (60 wrong, 45%): -10 to -15 wrongs from the
  pool-100 boost on arithmetic-aggregation questions.
- Cross-cluster: +1-2 pp overall from better candidate ranking.
- Cost: +30 min wall-clock, +$3-10 budget over the no-rerank baseline.
Branch refactor:
  iter             → longmemeval-iter
  .iter_round      → .longmemeval_iter_round
  push origin iter → push origin longmemeval-iter
  Old `iter` branch now explicit in the NEVER list as a "do not push" target.

Model stack (best-quality → cost-effective):
  Writer    openai:gpt-5             → openai:gpt-4o-mini  (mechanical extraction; reasoning was overkill)
  Reader    openai:gpt-5 reasoning=h → openai:gpt-5-mini reasoning=h  (matches Mastra SOTA leaderboard reader exactly)
  Judge     openai:gpt-4o            → unchanged  (NEVER substitute — canonical)
  Embedding 3-large (3072d)          → 3-small (1536d)  (6× cheaper; rerank compensates for the recall drop)
  Rerank    openai:gpt-5 reasoning=l → openai:gpt-5-mini reasoning=l  (5× cheaper, negligible quality drop)

Budget envelope:
  before: $30-80 + 15 min wall-clock @ 500-parallel
  after:  $15-25 + 5-8 min wall-clock @ 500-parallel  (~3× cost reduction)

Projected ceiling: ~94-95% J-Score (vs Mastra 94.87%) — apples-to-apples
on the reader, CogniFold's edge has to come from the graph + symbolic
resolver + rerank.

§8.1 fail-fast gate updated to grep the new model names. The historical
context row referencing the 2026-05 NVIDIA-route incident is kept as
the worked example for "missing --judge-model silently inherits".

§9 NEVER list expanded with explicit per-role substitution bans (writer,
reader, embedding, rerank) so the substitution surface is enumerated
rather than just "follow §1".
Three targeted bolt-on changes for the remaining N=200 failure shortlist
(post-R9, 16/200 = 8% wrong). Each patch is gated on a question-text
trigger so non-matching questions are untouched (low regression risk).

Patch C — recency tiebreak on "ago / since" resolvers
  Adds LongMemEvalSymbolicResolver._best_recent_concept(phrase) and
  rewires _try_diff_ago and _try_diff_since to call it instead of
  _best_concept. Both questions ask about the MOST RECENT matching
  event ("how many days ago did I meet Emma?" → 9 days, not 1138).
  The default _topk_dated breaks score ties by EARLIEST date, which
  silently locked onto the wrong Emma (gpt4_468eb063 baseline =
  "1138 days ago"). _best_recent_concept widens the candidate pool
  to top-5, keeps anything within 0.20 score of the top, and breaks
  the tie by date DESC.
  Targets: gpt4_468eb063 (Emma) — 1 case directly; also helps
  multi-mention "since X" questions when X has multiple matches.

Patch D — reader prompt anti-confabulation
  qa_answer prompt in configs/longmemeval_profile.yaml gains three
  explicit constraints:
    1. "how many / how much / how long" → use verbatim numbers only,
       no rate × duration extrapolation. Targets 7024f17c (yoga: HYP
       "1-2 sessions × 2h ≈ 4h" vs GT 0.5h).
    2. "what was the name of X you recommended" → use verbatim names
       from RAW_ASSISTANT only, no plausible-sounding substitutions.
       Targets 7e00a6cb (Amsterdam hostel: HYP "The Bulldog Hostel"
       vs GT "International Budget Hostel").
    3. SYMBOLIC_ANSWER block → copy verbatim, never recompute.
       Guards against the reader silently overriding bypass=True.

Patch E — assistant-EVENT recall boost
  New _ASSISTANT_RECALL_TRIGGER regex and build_assistant_recall_block
  in benchmarks/longmemeval/run_eval.py. Trigger fires on:
    "previous/earlier/prior (conversation|chat|discussion)"
    "you (mentioned|recommended|provided|listed|suggested|named|gave)"
  When fired, scans all role=assistant EVENT nodes, scores each by
  question-token overlap with the raw content, keeps the top-4, and
  prepends a "## RAW_ASSISTANT" block (verbatim text, 600-char
  snippets) before context_text. The reader can then copy the
  specific name/title/quote rather than substituting a plausible
  alternative.
  Targets: 51b23612 (Nu, pogodi!), 7e00a6cb (Amsterdam hostel) —
  Cluster E. Also expected to recover ones R8/R9 already rescued
  (Borges, Manolo García, etc.) — preserves their recovery under
  the new stack.

All three patches are read-path only — no graph rebuild required.
Regression surface limited by trigger gating (D applies to every
QA call but only changes the prompt; the rules are conservative).
Aligns the parallel driver with my_prompt.md §2.2:
- explicit --embedding openai:text-embedding-3-small
- --llm-rerank --rerank-model openai:gpt-5-mini --rerank-reasoning-effort low
- --rerank-pool 100 (auto-bumps to 100+ on aggregation questions
  via run_eval.py's R9-A heuristic)
- --llm-eval explicit (default was True but better to be explicit so
  §8.1 gate can verify)

Without this, the parallel runs would silently inherit the profile
defaults (3-small is the default, so embedding was OK; but rerank
was off entirely, leaving the multi-session cluster un-rescued).
Both patches LongMemEval-only (process_session_batch is benchmark-local;
batch_extraction prompt lives in configs/longmemeval_profile.yaml).
Other benchmarks (LoCoMo, MSC, MuSiQue, NarrativeQA, ToMi, BABILong,
MuTual, StreamingQA) load their own profiles — untouched.

Patch B — dated-anchor regex pass over user-role turns
  After process_session_batch's LLM extraction, scan each user turn
  for "I (started|began|finished|completed|recovered from|attended|
  joined|bought|ordered|received|met|moved to) X" with a wide verb
  list and emit a dedicated CONCEPT whose title carries BOTH the verb
  AND the topic keyword. The reverted R7-D failed because its anchor
  concepts dropped the topic noun ("helmet" without "bike" missed
  BM25 on the bike question); this version keeps the full
  "<verb> <object>" phrase intact.
  Targets:
    9a707b81 — "attended baking class"
    0db4c65d — "finished reading The Seven Husbands of Evelyn Hugo"
    4dfccbf7 — "started taking ukulele lessons"
    370a8ff4 — "recovered from the flu"
  (gpt4_1d80365e Yosemite duration is left to Patch F1.)
  Conservative: only fires on past-tense verb + object in user turns;
  doesn't touch dates outside the session window. Dup-protected by a
  per-session seen_titles set.

Patch F1 — writer prompt rules (9) and (10)
  Adds two new anchor rules to the batch_extraction prompt:

  (9) TYPED ATTRIBUTE VERBATIM — pet breed / car make+model / phone
      model / paint color / clothing size must appear verbatim in
      the title, never paraphrased to a category. The dog-breed
      regression (75499fd8: GT Golden Retriever, HYP Labrador
      Retriever) was caused by the writer dropping "golden retriever"
      and the reader inferring breed from "active lifestyle + Kong
      toys".

  (10) DURATION ANCHOR — "I spent N days/weeks/hours on X" must
       preserve N+unit+topic in the title rather than letting
       downstream compute a date-range diff. Targets gpt4_1d80365e
       (HYP "42 days" from 2023-04-05→2023-05-17 vs GT "2 days"
       stated in-session).

Cluster B coverage after B+F1:
  9a707b81  ← B (attended)
  0db4c65d  ← B (finished)
  4dfccbf7  ← B (started)
  370a8ff4  ← B (recovered)
  gpt4_1d80365e ← F1 rule 10 (duration)
  = 5/5 of the no-memory temporal cluster targeted

Cluster F:
  75499fd8 ← F1 rule 9 (typed attribute) — 1 case targeted
  dd2973ad ← still deferred (needs day-before 2-hop, structural change)

Risk profile:
  - B: anchor concepts could collide with LLM-extracted titles, but
    the LLM titles in this profile already follow rules (1)-(8) so
    duplicates resolve cleanly. seen_titles dedup prevents in-session
    fan-out.
  - F1: prompt rules (9)+(10) are additive. The LLM may apply them
    inconsistently on gpt-4o-mini, but worst case = same as no rule
    (no regression). Worth verifying that the existing CORRECT cases
    aren't perturbed by re-extracted graphs (re-test will diff).
@wsuli615
wsuli615 requested a review from duanyiqun May 30, 2026 15:59

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Reviewed the shared src/cognifold/query/ changes — all new surface is backwards-compatible:

  • QueryConfig new fields (use_llm_rerank_batched, pre_rerank_pool, rerank_model, rerank_reasoning_effort) all default to off, so other benchmarks are unaffected unless they opt in.
  • call_llm() new kwargs (model, reasoning_effort, max_tokens) preserve the legacy gpt-4o-mini default path.
  • The batched rerank pool logic in agent.py is gated behind the config flags.

Scope-confinement claim verified. Approving.

⚠️ Heads-up: the branch currently shows mergeStateStatus: DIRTY / CONFLICTING against main — please rebase/merge main and resolve conflicts before merging. The N=200 re-run test plan is also still unchecked (blocked on OpenAI quota).

# Conflicts:
#	benchmarks/longmemeval/run_eval.py
#	benchmarks/longmemeval/symbolic_resolver.py
#	configs/longmemeval_profile.yaml
#	scripts/parallel_longmemeval.sh
#	src/cognifold/query/agent.py
@duanyiqun
duanyiqun merged commit 4743053 into main May 31, 2026
1 of 3 checks passed
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2 participants