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skills: t27o -- the night lessons: review checklist, drafts hold PRs, sweep and Zig front end, build traps (Closes #10826) - #10827
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… sweep and Zig front end, build traps (Closes #10826) What the overnight loop of #10522 paid for after #10542: dupe_scan for bodies (#10801 passed a name check with 13 copied bodies), the own-language gate compiled from the merge base, devhome literals (#10646), seals of specs that use rust_convert, drafts as the only hold (auto-merge off did not stop #10801), the stacked-PR rebase recipe, a writable cloned CARGO_HOME, a private zig cache per lane, zsh traps, the splice that matches string literals (#10824); tri t27o-sweep and the Zig front end documented; stale timings updated. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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October 19, 2026 03:54
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This was referenced Oct 19, 2026
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Closes #10826. Part of #10522.
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.claude/skills/t27o/SKILL.mdwith what the overnight loop paid for after #10542:zig_convert.t27, t27o: a Zig front end (zig_convert.t27) -- 36,495 Zig fns on the roadmap repos, 10-38 % in a first subset, tests as the oracle (stage 5) #10597 / t27o: Zig front end step 1 -- zig_convert.t27 converts tier-1 leaf fns and translates the file own tests as the oracle (step 1 of #10597) #10765) andtri t27o-sweep(ledger.t27, tri t27o-sweep: t27o coverage over a tree, rows reused by the seal hashes of the converter (warm run in seconds) #10543,--repo[bug] tri t27o-sweep cannot sweep another repository: seals and git ls-files are read from the current directory #10638).tri t27o-sweepreplaces the per-file shell loop; the converter is near-linear since t27o: a declaration index, a line cache and a bounded for-search make tri t27o linear in the file; compiler.rs finishes in 1.3 s (Closes #10544) #10631 (1,388 files in 26 s, compiler.rs 1.4 s); how to profile a regression withsample.t27b test+ onetest-report, seal verify, gen byte-identity,tools/dupe_scan.pyfor bodies (t27o: the pure std methods convert -- bit counts, pow, saturating, div_ceil, sqrt, is_finite, to_bits, is_ascii, unwrap_or, get, contains (Closes #10764) #10801 passed a name-only check with 13 copied bodies), the own-language gate compiled from the merge base (exact commands), the devhome check (tri t27o-sweep --repo <dir>: sweep another checkout, one cache per repository, a missing seal names its path (Closes #10638) #10646), re-sealing specs thatuserust_convert.CARGO_HOMEfor crates the sandbox cannot fetch into~/.cargo; a privateZIG_LOCAL_CACHE_DIRper lane; zshechoof JSON,=expansion, backticks; the gen-rust splice matching string literals ([bug] t27c gen-rust: the use splice matches words inside string literals and pulls in a whole module (13,432 vs 4,111 lines) #10824); worktree disk cost.Checks:
python3 -I tools/check_documented_commands_exist.pyok (138 deadtrimentions = the ceiling, run with atrithat hast27o-sweep); ASCII only.🤖 Generated with Claude Code