Door B listed `inbox.iterdir()` and kept only top-level files. A file in a
subdirectory was neither ingested nor refused: it appeared in none of the
result's buckets, so a nested drop produced a bundle that was silently short
of what was dropped and no count said so. That broke the K1b identity for any
inbox with folders in it. Operator decision 2026-09-06.
- `walk_inbox` is the ONE walk rule, shared with `tools/okf_corpus_run.py`:
the denominator N is now counted over exactly the set of files the door
ingests, rather than over a second listing that happened to agree.
- Sorted on the whole relative path, not the basename, so the order is a
function of the tree; that is what keeps rebuild-from-scratch byte-equal to
an incremental update.
- A concept's `source_file` is the path relative to the inbox root,
`/`-separated. The concept NAME still comes from the basename, so two
folders holding one basename hit the existing §3 collision refusal instead
of one silently claiming the other's concept.
- Dot-directories and a bundle directory inside the inbox are skipped with a
CODE, in a new `InboxResult.skipped`. Recursion makes the door's own output
reachable as its own input; a silent skip would be the same
absence-without-a-denominator defect one level down.
- `--path-prefix` reduces per component and rejoins with `/`, so the caller
driving a nested corpus can carry the relative directory. Reducing the whole
string folded the separator into a `-` and flattened `sub/sub2`.
`tests/test_inbox_flow.py::test_subdirectories_are_not_walked` asserted the
opposite and is superseded in place, with the reason written down.
Measured on the K2 corpus (flat, N=43): 39/43 merged, 4 coded, K1b holds. The
bundle digest is
`1472e98aec8643c5beee540f4c42b5e437bd26e7c61d69a91bcff799f06a6d13` over 1108
files -- byte-identical to a run of the same corpus at 190086f WITHOUT this
change (`diff -r` exit 0), so recursion costs a flat inbox nothing. It differs
from the stored 2026-09-03 artifact by one line in `index.md`
(`- [Corpus run history](log.md)`), which 95eb271 added 15 hours after that
bundle was built.
Suite 1113 passed, `ruff` clean, `mypy --strict src/ tools/` clean.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The README told consumers that `docx` and `xlsx` ship no parser and always fail
fast. True when written; false the moment the converter seam landed -- and
false SILENTLY, because prose has no test. This repository has been bitten by
that exact shape before: a published guarantee is a test obligation.
So the correction comes with `tests/test_docs_promises.py`, which compares the
README's declared format list against the registries it describes and fails on
a format added without touching the README, on the old claim reappearing in any
wording, on an unmeasured row going unnamed, and on the exclusions being
dropped. Negative control: removing one format from the README's marker turns
it red.
The README now states which rows are measured and which are not. Three of the
five office rows have denominator ZERO in the corpus -- they work by
construction and have never met a document anyone wrote. They are not known to
be broken and not known to be right, and a reader should not have to open the
source to learn which.
The CHANGELOG's shipped entry is left as written, because a changelog records
what a release did; the correction is stated at that line instead so a reader
arriving there is not misled.
Suite 913 -> 917.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
