agent: builder model: opus max_turns: 70 budget_usd: 15 —
sysroot.rs, modules.rs and the rest of emit/mod.rs (research, docs only, Part #125)Score: self-hosting lane (docs/priorities.md, owner’s direction 2026-10-27: moves first, the largest Rust files first; every batch carries at least two moves). The brief before this one (p1-large-files-plan.md) plans project.rs and parser/mod.rs; it also planned comptime_run.rs (rows K1, K2); this one plans the next three by size, so the batches after it have moves from four files to choose from without touching the same file twice in a row. S=2 (4 685 Rust lines without a plan), O~5 M (a planned slice costs about 10 k tokens a line, against 15+ unplanned, c7-rest-plan), C~2 M (reading and converter runs only).
crates/nikaia/src/sysroot.rs 1575, crates/nikaia/src/emit/mod.rs 1411 (after E12-1..4b), crates/nikaia/src/modules.rs 1398 (comptime_run.rs is planned already, K1/K2). Next by size: contracts/mod.rs 1326, check/mod.rs 1039.emit/mod.rs keeps Build, host_target(), default_target() in Rust on purpose (E12-4 row: the host triple from env!, the orphan rule): name them under Stays Rust, do not plan them.sysroot.rs holds the lowered-file cache (#667: per-file keys, LoweredBefore, in_parallel) and Cargo calls: separate the pure parts (key computation, table walks) from the file system and process parts.## C-7 rest and E12: what is left in docs/selfhosting-plan.md (columns, Stays Rust list with one-line reasons, known risk per slice). ## Large files: project.rs and parser/mod.rs is there (p1): append after it, do not change it.rs2nika draft (docs/builder-facts.md, The converter).docs/selfhosting-plan.md only)target/fast/nikaia run scripts/where.nika -- NAME..., not grep -r.rs2nika --profile check --file) over each candidate slice once (a scratch .rs per slice under your scratch dir, not committed) and note the share of lines it drafts without a TODO.## Large files 2: sysroot.rs, modules.rs, emit/mod.rs to docs/selfhosting-plan.md: one row per slice of 300-1200 Rust lines, in build order: id (M1.. for modules.rs, S1.. for sysroot.rs, E13-1.. for emit/mod.rs), the Rust functions (file:line ranges), the target tools/*.nika file (new or existing), host callbacks added/removed, prerequisite (another slice, an open issue, or none), Rust lines, and the converter’s draft share. Mark what must stay Rust with one line why each. Name the first two slices to brief, from different files, and the one known risk of each.
Nothing is built; Tests: none, docs only. Commit docs: selfhosting-plan, slices of sysroot.rs, modules.rs, emit/mod.rs (#125); no Fixes. Rs2nika: none (no move).A file turns out to be mostly what must stay Rust (then say so in the table and plan contracts/mod.rs instead); an error in another agent’s file.
Read docs/builder-facts.md.
docs/builder-facts.md first. develop in the main checkout; git status at start: other agents’ uncommitted files are not yours, never touch or stage them.git add <files> only; commit after each step; git push origin develop fast-forward, no rebase (rejected: report Pushed: rejected, go on committing).cargo fmt, cargo clippy --all-targets -- -D warnings, scripts/pre-push-check.sh, and the gate of .claude/agents/builder.md (#852).CHANGELOG.md, badges; no new NK code. New tests in Nikaia only; never the full suite. No foreground sleep, no polling; scripts in files.NIKAIA_CACHE_LIMIT=2G; at most two clones with target/ in the machine; delete your own clone’s target/ and target/release/nikaia-scratch at the end; report GB freed./home/user/Nikaia/docs/briefs/p2-large-files-plan.md.report.md)Fields of docs/architect.md, Briefs and reports: Result: done|noop|partial|blocked (the bare word alone on that line: Result: done, never a summary after it, which cuts the batch, b869a 2026-10-27; Owner: is a question for the owner or none, never a role), Files, Commit, Body (optional, one paragraph for the commit message), Fixes, Pushed, Tests, Gate (green|red), Deviation, Found, Needs, Changelog, Owner, Disk freed, and for a move Rs2nika: (the kept N of M lines of rs2nika --score, then the three costliest hand edits; none for a task that moves no Rust). none where nothing, and then the bare word: Deviation: none (a note) cuts the batch (batch.nika compares exactly); a note goes into the commit message. Found: is only for a defect outside your change (it cuts the batch); a converter draft that came out wrong is no Found:, it is one of the costliest edits under Rs2nika:, which the converter lane reads (e12-4b 2026-10-27); how you solved your own step goes into the commit message. Deviation: is only a step of the brief built otherwise than written or not built (a choice the brief left to you, such as keep what X needs and say so, is no deviation: it goes into the commit message; nor is building two steps in one commit when every step is built, e12-3a 2026-10-27, nor a step another commit on develop already built, shown by your test failing with that commit’s change reverted, b889 2026-10-27: name the commit in Body:); how you verified (e.g. a test not run against the unfixed compiler) goes under Tests:. A noop says why under Tests: (what was probed), not under Deviation:. Final answer, one line: done <sha>, report <path> (or BLOCKED: ... / PUSH REJECTED ...).
Attribution: Co-Authored-By: Claude Opus 5.5 noreply@anthropic.com Claude-Session: https://claude.ai/code/session_01GFeMqxRbtUMiGVyDMxsvEq