agent: builder model: sonnet max_turns: 70 budget_usd: 12 —
stored fold of infer_package_noted into ledger_items.nika; the dead LedgerOps::candidates goes (Part #125)Score: self-hosting lane, plan row C1 of docs/selfhosting-plan.md (second part; C1a built, 5bd603f3). Small: S=1, C~1 M. lookup is split off as C1c: it waits on #1107 (bug lane b26), a ref T? unwrapped by a match or ?? loses its ref, so (String, ref FnContract)? cannot be said yet. Do not move lookup. Touches no file of P5c (project.rs, project_drive.nika) nor of the bug lane’s queue.
Cut: crates/nikaia/src/contracts/mod.rs:444-455 Convert: –profile check Shape: faithful
Facts: Where things live, Traps already met, Moving Rust into Nikaia, Commands
contracts/mod.rs:444-455 (in infer_package_noted) that merges every Checked’s stored_code into one BTreeMap<String, StoredCode> (crate::check::StoredCode is the lowered CheckStoredCode, tools/check_state.nika:551, with empty()). New pub fn ledger_items_stored(codes: Vec[collections::BTreeMap[String, CheckStoredCode]]) -> collections::BTreeMap[String, CheckStoredCode] in ledger_items.nika (or the prefix that file uses for its public names; follow it), the same merge: resolved and free extended, unresolved or-ed, keyed entries made with CheckStoredCode::empty() (or_insert_with, or ADR-384’s or_default only if CheckStoredCode has a Default; say which in Body:). Rust keeps let stored = ledger_items_stored(checked.iter().map(|c| c.stored_code.clone()).collect()) (the Rust already clones each pair). The architect probed the merge shape (a for (key, code) in codes with entry(key.clone()).or_insert_with(..) and extend(code.resolved.iter().cloned())) on 7ad2ea08: it runs.LedgerOps::candidates (trait contracts/mod.rs:170, impl :554-584 with its doc comment) has no caller (scripts/where.nika -- candidates: only surface.nika’s own candidates and check_values.nika’s ledger_candidates, which is the Nikaia one the checker uses). Delete both.infer_package_noted; lookup (C1c).nikaia.contracts, nikaia.derived, nikaia.proofs a build writes stays byte for byte; git diff --stat tests/compiler/nikaia.* after the tests shows nothing.lower-std, only ledger_items.rs and lowered.rs differ from HEAD among the lowered files you produced; any other is Found: #1060 and stops the brief.crates/rs2nika/**, project.rs, comptime_run.rs, sysroot.rs, docs/briefs/* but your report, the uncommitted files git status shows at start (now tools/emit_core_leaves.nika and its lowered twin, the crates/rs2nika/{convert,facts}/nikaia.* files).ledger_items_stored in ledger_items.nika, the call in contracts/mod.rs, candidates deleted; lower-std and its fixpoint; cargo check -p nikaia.cargo test -p nikaia --test it -- throws locks touch ledger contract (anchored grep -E '^test result:|FAILED|panicked'), cargo test -p nikaia --lib contracts::, and nikaia test --project tests/compiler --both-settings on the tests whose names contain throws, stored, lock, ledger (by name); then the ledger check above. Commit contracts: the stored-code fold moves into ledger_items.nika; the dead LedgerOps::candidates goes (C1b), Part: #125; plan row C1 updated (C1b built; C1c = lookup, waits on #1107), self-hosting share in the body (scripts/self_hosting.py).Build, lower-std fixpoint, the tests of step 2 and the ledger check pass; fmt, clippy (1.97 and 1.99.1), pre-push-check.sh; committed locally; Rs2nika: with the score.
A form Nikaia lacks (Result: blocked, Found: with a probe); an edit outside contracts/mod.rs, ledger_items.nika, its lowered file, lowered.rs, docs/selfhosting-plan.md; an error in another agent’s file.
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 (scripts/commit.nika -- REPORT does it); commit locally after each step and never push: the driver runs the complete suite and pushes (.claude/agents/builder.md, Cheap checks only; owner, 2026-10-31).cargo build --profile fast -p nikaia, lower-std and its fixpoint when a tools/*.nika changed, cargo fmt, cargo clippy --all-targets -- -D warnings, scripts/pre-push-check.sh, the tests the brief names and the ones your change touches. No gate.nika.CHANGELOG.md, badges; no new NK code. New tests in Nikaia only; never the full suite. No foreground sleep, no polling; scripts in files.std or the toolchain lacks stops the work: no code around it unless an ADR or Part I-III refuses it (name it). Else Result: blocked, Found: gap + probe, Needs: architect decision (CLAUDE.md, A missing form stops the work).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.Result: partial with what you ruled out, the probe, and the suspected file and function (.claude/agents/builder.md).target/fast/nikaia run scripts/commit.nika -- REPORT, which writes Pushed: local <sha> into it. A report without a Pushed: line, or with a placeholder left in (TC, DISK), is not done and cuts the batch (k3a1 2026-10-29: Result: done, nothing committed)./home/user/Nikaia/docs/briefs/c1b-ledger-stored.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 or red <check>: your cheap checks, never none, which cuts the batch, j4 2026-10-31), 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 (redesign) for a brief with Shape: redesign and no Convert: line). 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 process event such as another session resetting or rewriting your files is no Found:, it goes under Needs: (m3a 2026-10-28); 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:, nor a test’s expected .stdout/.stderr taken from what the program really prints where the brief’s sketch of it was short or wrong, b934 2026-10-29: say so in Body:, nor a lowering that follows the ADR governing it where the brief’s expected lowering contradicts that ADR, b933 2026-10-29: name the ADR in Body:, nor a lowering other than the brief’s where rustc cannot take the brief’s, b1029 2026-10-31: say why in Body:, nor re-keying an allow-list entry (KNOWN) whose hash changed for the same program and the same reason, b-fixforward-sweep2 2026-10-28: say so in Body:, nor an existing test’s expected .stdout/.stderr updated because your change rightly changes the message it prints, b1012b 2026-10-31: name the test 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