Add the engine's per-file commit subject to programming.zh-cn sync signatures - #13
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…gnatures The 2026-03/04 wave landed as per-file commits titled 'Update translation: lectures/<file>.md' under the maintainer identity the engine commits as (41 commits; no other author has used the shape). Without the signature they classified ai-assisted, overstating that tier at 6.8% and understating ai-sync at 9.9%; with it the corpus reads ai-initial 81.2 / ai-sync 17.5 / ai-assisted 1.3. Caught by the 2026-08-28 tier adjudication for the first three-edition report (textstrata run for #1). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Pull request overview
Updates the QuantEcon programming.zh-cn repository configuration so the provenance tiering rules correctly recognise the translation engine’s 2026-03/04 per-file commit subject format as a machine sync signature (thereby classifying those commits as ai-sync under rule-1 precedence).
Changes:
- Extend
machine.syncsubject regexes to include^Update translation:. - Add inline comments documenting why this signature exists and the specific wave it addresses.
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This was referenced Aug 28, 2026
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Found by the hand-adjudication pass for the first three-edition report (#1): ten of the 33 sampled tier assignments at programming.zh-cn disagreed with the rules' intent, all from one cause — the engine's 2026-03/04 wave landed as per-file commits titled
Update translation: lectures/<file>.mdunder the maintainer identity the engine commits as, a subject shape the sync signature list did not carry. All 41 such commits are that identity's; no human has used the shape in this repository (Humphrey's edits are titledUpdate lectures/<file>.md, without thetranslation:prefix).Effect at
b727528: composition moves from ai-initial 83.3 / ai-sync 9.9 / ai-assisted 6.8 to ai-initial 81.2 / ai-sync 17.5 / ai-assisted 1.3, and the wave's 2,651 mis-attributed pairs leave the pair corpus (2,906 → 255) foroverwrites.jsonwhere machine passes belong.autodiff.md's translation moment now readsai-syncby the documented rule-1-over-rule-2 precedence, the same aspolars.md. A re-drawn 31-row tier sample at the corrected config adjudicates 31/31.The signature is scoped to this repository's config, per the AGENTS.md rule that repo-specific shapes live in
configs/, never insrc/.🤖 Generated with Claude Code