agent: builder model: opus max_turns: 90 budget_usd: 20 —
develop: sequences::the_corpus_has_no_more_unanswered_method_calls_than_it_hadScore: a red develop is fixed forward first (CLAUDE.md); main and promote stand still until it is green.
crates/nikaia/tests/it/sequences.rs:306): it sums the checker’s unanswered method calls over examples/ and crates/nikaia-std/src/** and asserts <= 16.git log a5663bf6..75e25ed8): 43312d30 (prover: grammar actions, crates/nikaia-std/src/tools/prover_walk.nika +135 lines, prover_passes.nika), 7cde2178 (packages/yaml/ only: the test does not read it), 75e25ed8 (a report). So the suspect is 43312d30’s new code in prover_walk.nika (prover_action, prover_action_number, prover_action_locals, prover_bound_number). Likely candidates, unchecked: the tuple bound from a match (let (called, generics, args) = match pattern { .. }, then generics.len(), generics[0].generics.is_empty()), rule.ret_type ?? return null then ret.generics, the lambdas fn(name) { scope.ints.contains(name) }.crates/nikaia-std/src/tools/check_core_call_on.nika:107 (calls.unanswered += 1).examples::every_example_package_passes_its_own_tests on arm64 at e89554fd passed again at a5663bf6: not yours; mention it under Tests: if you see it again.)cargo test --profile fast -p nikaia --test it -- sequences::the_corpus_has_no_more_unanswered) to get today’s count. To name the calls, add a temporary eprintln! of the call’s written text in the lowered crates/nikaia-std/src/tools/lowered/check_core_call_on.rs where unanswered is incremented, run once, and restore that file by name (git checkout -- <that file>, your own file only). Compare with the same list on a5663bf6’s prover_walk.nika if needed (the count there was within 16).let from a match whose arms state the types, a ?? with return/continue, a lambda parameter typed by the fn type it fits): the checker’s typing in crates/nikaia-std/src/tools/check_*.nika (plus their lowered .rs, re-lowered as docs/builder-facts.md says). Do not rewrite prover_walk.nika to dodge the gap (CLAUDE.md, Fix, do not work around). Add a Nikaia test in tests/compiler/tests/ only if the fix changes what a program means (a call refused or lowered differently); the corpus test itself covers the count. If the count falls below 16, lower the ceiling to the new figure with a doc sentence above the test saying what answered the calls (the test’s own convention).Result: blocked, Found: the list of calls and the receiver form that leaves them untyped (a five-line probe), Needs: architect — the architect then decides between a fix brief and a revert of 43312d30.Stop about 15 turns before max_turns: commit what is verified and report partial.
cargo test --profile fast -p nikaia --test it -- sequences:: (the corpus test and its neighbours) must pass..claude/agents/builder.md (guard set; a tools/check_*.nika change also runs target/fast/nikaia test --both-settings --project tests/compiler).check: <what is now typed> (fix forward: corpus unanswered calls).May change: crates/nikaia-std/src/tools/check_*.nika, their lowered/*.rs, the lowered files a re-lower changes, crates/nikaia/tests/it/sequences.rs (ceiling and its doc only), new files in tests/compiler/tests/. Not yours: crates/rs2nika/convert/nikaia.*, docs/selfhosting-plan.md, any other uncommitted file in the checkout (git status at start).
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.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: owner 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. The disk has about 3.5 GB free: no second clone.Pushed: line names the pushed sha. 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/b-fixforward-corpus-unanswered.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 (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 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:); 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