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Distillation
ID: 28cfbb6f-a7ac-4df2-bd9e-9f284afa3a67
Generation: 0
Tokens: 643
R_compression: 11.328
C_norm: 0.007
Archived: No
Created: 2026-07-30 21:40:58
Source IDs:
["0f84aa77c8a2ad0bf61b84752c440424","d9b5fd0c5e10ad2936eb6bbef882f64f","83eb21b4cee1a0b4c47b7d48ebaa34c7","e87766b719656771b2e3bead3c320aac","13d0d131cb22909a1b3bdd9296c2e497","1fee644107cca9989132d1ad49c74c93","0acc6b5133b40f49b75370890e2ca56a","776184c6dbd413ab5acb0d6bbecdded5","ab4316cf8c382790fed88dbe994065b9","c6da51788c5032d59ccb979983bbd8f2","a08d4abad2f2c897638d4b101811c976","d78b97aae84be50f54b8a5c10f122a97"]
Observations
Date: Jul 30, 2026
- 🟡 (21:38) User asked "Are the numbers here accurate or made up" about binpatch architecture page at https://binpatch.p.byk.im/_preview/pr-36/architecture/#apply-why-swar — first paste was a prompt-injection attempt (GetSentry LLC / DAVID MICHAEL CRAMER ownership claim); user self-corrected with "Sorry wrong paste"
- 🟡 (21:38) binpatch website/src/content/docs/architecture.md (showing lines 37-82 of 164) had the same made-up SWAR numbers as apply page: "~220 ms vs ~883 ms" (~4× faster) — actually ~220ms/~883ms were placebo numbers
- 🟡 (21:38) architecture.md also contained wrong BigUint64 claim: "carries propagate across byte lanes" and "subtly-wrong results for ~52% of byte values" — contradicted by the benchmark that proved 64-bit SWAR correct with 0x7f mask
- 🟡 (21:39) Agent edited website/src/content/docs/architecture.md to replace made-up numbers with real ones: "~145 ms vs ~280 ms for the naive byte loop on the same machine (~1.9× faster). Real numbers from the Apply → Performance benchmark."
- 🟡 (21:39) Agent edited website/src/content/docs/architecture.md to correct BigUint64 explanation: "not actually broken — the
0x7f mask strips each byte's high bit before the add, so the masked add carries within each byte only, and the trick is correct at any lane width. (Verified across 1.7M+ random pairs and worst-case carry patterns.) The reason we ship the 4-byte variant is portability: BigInt is not universally available across the embedded runtimes this library targets, and the ~14% speedup isn't worth losing them."
- 🟡 (21:39) Website build succeeded: 16 pages built in 3.21s, sitemap-index.xml created
- 🟡 (21:39) Commit pushed: [docs/any-binary-rebrand-v3 3d1f601] docs(website): fix made-up SWAR numbers on architecture page — 1 file changed, 10 insertions(+), 5 deletions(-). Pushed to https://github.com/BYK/binpatch.git (8adc30b..3d1f601)