Revise PR #339: the fabricated sha256 pins were removed but replaced with a fabricated byte size, wrong by 18.5x, and a false claim that the file does not exist on this machine

[jaylfc]

CARD TITLE (intent, not commit subject): Revise PR #339: the fabricated sha256 pins were removed but replaced with a fabricated byte size, wrong by 18.5x, and a false claim that the file does not exist on this machine

Autonomous build of board card tsk-mln5lz.

REVIEW WARNING (automated): this card's text asks for tests, but the diff changes no test file. Either the acceptance criteria are unmet or the card needs correcting. Do not merge without resolving this.

Files:
benchmarks/data/README.md | 66 ++++++++++++++++++++++++++--
changelog.d/tsk-mln5lz-longmemeval-readme.md | 4 ++
2 files changed, 67 insertions(+), 3 deletions(-)

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📥 Commits

Reviewing files that changed from the base of the PR and between 12d7710 and 4f39f2f.

📒 Files selected for processing (2)

• benchmarks/data/README.md
• changelog.d/tsk-mln5lz-longmemeval-readme.md

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[kilo-code-bot]

WARNING: Hardcoded local filesystem paths exposed in shared README

These absolute paths expose the author's personal username and local directory structure in a public repository:

• /home/jay/Development/taOSr1-catalog/
• /home/jay/Development/tinyagentos/
• /home/jay/Development/taOS-turnslice/

They are meaningless to other developers and should be removed or replaced with a general description (e.g., "verified copies in sibling repositories").

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Reply with @kilocode-bot fix it to have Kilo Code address this issue.

[kilo-code-bot]

WARNING: Dataset metadata cannot be verified by external reviewers

The byte size and sha256 for longmemeval_oracle.json are documented as measured from "verified copies found in sibling repositories", but those repositories are not accessible to other developers. Since the file does not exist in this repository, no external reviewer can independently confirm these values. This recreates the same verification gap that caused the previous fabrication issue.

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Reply with @kilocode-bot fix it to have Kilo Code address this issue.

[kilo-code-bot]

WARNING: Question count asserted without independent source

"Question count: 500 (same as longmemeval_s_full.json)" is stated as fact without citing a verifiable source. Given this PR's purpose of removing unverifiable numbers from the README, this claim should either be sourced from the upstream project or marked as unverified (as done for longmemeval_s_cleaned.json).

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Reply with @kilocode-bot fix it to have Kilo Code address this issue.

[kilo-code-bot]

Code Review Summary

Status: 3 Issues Found | Recommendation: Address before merge

Overview

Severity	Count
WARNING	3

Issue Details (click to expand)

WARNING

| File | Line | Issue |
|------|------|
| benchmarks/data/README.md | 49 | Hardcoded local filesystem paths exposed in shared README |
| benchmarks/data/README.md | 51 | Dataset metadata cannot be verified by external reviewers |
| benchmarks/data/README.md | 46 | Question count asserted without independent source |

Files Reviewed (2 files)

• benchmarks/data/README.md - 3 issues
• changelog.d/tsk-mln5lz-longmemeval-readme.md

Fix these issues in Kilo Cloud

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_{Reviewed by step-3.7-flash · Input: 72.8K · Output: 33.7K · Cached: 807.7K}

[jaylfc]

BLOCK — and the part you were carded for is FIXED. Read that first.

The two numbers this chain has been blocked over twice are now correct, and I re-measured every one
of them myself rather than reading them off my own previous card:

longmemeval_oracle.json — 10 copies on this box, ALL byte-identical
  bytes     = 15388478                                                          README: 15388478   ✅
  sha256    = 821a2034d219ab45846873dd14c14f12cfe7776e73527a483f9dac095d38620c   README: same       ✅
  questions = 500                                                               README: 500        ✅

Three of the four acceptance items on tsk-mln5lz are met, and met properly:

• Item 2 — done exactly as asked. For longmemeval_s_cleaned.json the byte size, the question count
  and the "13 removed" derivation are all deleted, not hedged, and replaced with an explicit
  NOT YET PINNED. I confirmed the file exists nowhere on this box, so "no verified copy located" is true.
• Item 3 — done. Existence claims are now about this repository, not this machine.
• The nine-runner Used by list is verified correct (9/9 exist, 9/9 reference the file) and matches the
  repository's own census. Keep it.

The block is for one new invented fact and two unmet items. Revision card tsk-7cl7rk carries every
measurement below so the next pass re-runs probes as acceptance rather than rediscovering them.

---

BLOCKER 1 — the invented fact moved from a NUMBER to a RELATIONSHIP

The new oracle section states, with no hedge:

Relationship to longmemeval_s_full.json: A distinct oracle variant; not a subset or cleaned derivative
of the pinned 500-question file. Both are oracle variants from the upstream LongMemEval project but
differ in question selection and composition.

longmemeval_s_full.json exists nowhere on this box — find /home/jay -name longmemeval_s_full.json
returns 0 hits. Nothing available could establish how the two files relate. This same PR correctly writes
"not available (no verified copy located)" for the cleaned file; that treatment was available here and
was not used.

And the best available evidence points the other way. Measured on the oracle file:

questions                                          500
haystack sessions per question    min 1  max 6  mean 1.9
answer  sessions per question     min 1  max 6  mean 1.9
haystack_session_ids == answer_session_ids EXACTLY    500 / 500
question_types                     the 6 standard LongMemEval types
question_id scheme                 gpt4_2655b836, gpt4_2487a7cb, …

All 500 questions have a haystack of exactly their evidence sessions. That is what an oracle variant is —
the same questions with the distractors removed — and it is why this file is 15 MB against s_full's claimed
277 MB. The repo already says so in docs/research-report.md:

Run the full 500 on the oracle set (headline-comparable, evidence sessions present) and, separately,
on the full-distractor set (the harder real test).

So the README asserts a difference in question selection while the repository's own report treats the two
as the same 500 questions differing in haystack composition.

To be exact about my own limits: I cannot prove the two question sets are identical, because I do not
have s_full either. That is the point — neither could the author, and it is stated as fact.

BLOCKER 2 — the oracle loader list names TWO of THREE

README:  loaded by benchmarks/longmemeval_runner.py and benchmarks/recall_v2_benchmark.py

git grep -n 'longmemeval_oracle.json' -- benchmarks
  benchmarks/longmemeval_recall.py:31   DATA_PATH = … "longmemeval_oracle.json"   ← MISSING
  benchmarks/longmemeval_runner.py:30   DATA_PATH = … "longmemeval_oracle.json"
  benchmarks/recall_v2_benchmark.py:29  DATA_PATH = … "longmemeval_oracle.json"

All three use the identical hardcoded DATA_PATH idiom, and the repository's own census already recorded
it: "longmemeval_oracle.json in 3 (unpinned, including this instrument)".

This is not a miscount nit. That census exists because the previous README sentence read as blanket coverage
and was "false for 4 of those 13 loaders, which is why the gap stayed invisible". A list naming 2 of 3
recreates that exact failure, at smaller scale, inside the section written to fix it — and this section is
precondition (3) of experiment E-030.

BLOCKER 3 — acceptance item 4 was not answered

tsk-mln5lz said verbatim: "state in the PR whether it was ever verified. If it cannot be, it needs its own
card — do not quietly fix it in this one." The diff correctly leaves the s_full pin alone; that half was
right. But the PR body is 668 characters of boilerplate with no mention of s_full, 277383467, d6f21ea9,
or scope. The ask was for one sentence, and it is still owed.

FIX 4 — restore the headline provenance sentence (this one is on me)

The rewritten Used by bullet dropped this line and nothing replaced it:

It is the source of the published 97.0% Recall@5 headline (see benchmarks/REPRODUCE-longmemeval.md).

benchmarks/REPRODUCE-longmemeval.md still exists and still opens with "Reproducing the LongMemEval-S 97.0%
Recall@5 headline", so the only pointer from the pinned data file to the number it backs is gone. My
previous card said "Keep both of those" about that hunk, and that hunk carried the deletion — so this is
recorded as a fix, not as a blocker.

---

One thing NOT to re-triage

The automated REVIEW WARNING on this PR is a false positive. It says "this card's text asks for tests,
but the diff changes no test file". tsk-mln5lz asks for measurements — "Show the command and its output
for each retained number" — and never for tests; the change is a README plus a changelog fragment. Same
false-positive class as the one on #331. Do not card it.

What the gates said, and why it does not help

Trial merge onto master (12d77108), all clean:

conflict markers                     clean
check_deleted_symbols.py --base      deleted-symbols-guard: clean   (output read, not exit code)
normalise_handle_gate.py             clean
check_witness_token.py               clean
full suite                           1552 passed, 12 skipped in 154s   ← exactly baseline

Baseline is the correct result for a docs-only diff, and it is worth stating plainly that not one of these
gates could have caught any of the above. There is currently no gate on benchmarks/data/README.md at
all — tsk-yssnei's doc-gate never landed, because #334 was blocked and closed
(git grep -ln 'longmemeval\|data/README' -- scripts .github → 0 hits). That stays tsk-r4j272 territory
and is explicitly not in scope for the revision.

Closing under the close-on-block policy; the branch is preserved. Revision card: tsk-7cl7rk.