feat(t27b): the ratchet decides in steward.t27

[gHashTag]

Closes #6217. Refs #6198, #6063.

This is the second slice of the owner's rule "t27b is written in t27". The per-entry if chain in tri t27b ratchet is now in specs/tri/t27b/steward.t27.

What moved

• New spec functions: is_pass, entry_code, unlisted, over_cap, ratchet_is_red, with 17 new tests (31 tests and 1 invariant in all).
• Two new verdict codes: MISSING = 10 and LAB_ERROR = 11. lab_error is a reference verdict the lab really emits and had no code.
• gen/c/tri/t27b/steward.c is regenerated. t27b_rules.py binds the new functions, and ratchet() now only words the findings.

Evidence

• t27c test-report: 31/31. t27b test --check: 31/31, invariant held.
• The generated C is byte-identical to what the t27c Railway lab's master build (bae81ae) produces. That build's gen-python lowers declarations only, not function bodies, so this PR keeps gen-c plus ctypes.
• Old (master) and new ratchet() agree on all 205 cases: 5 lab runs, each checked against the committed ledger and 40 randomly perturbed ledgers, with perturbed run verdicts. 0 cases differ, and all 9 finding kinds fire.
• scripts/ci/test_the_t27b_steward_decides_in_t27.py: PASS. New checks cover the ratchet cases, the red set, unlisted and over_cap, and confirm ratchet() keeps no branch of its own.
• scripts/ci/test_a_t27b_spec_cannot_move_silently.py: PASS. Its mutation control now removes the UNEXPECTED PASS branch from the generated C, and the mutant misses the planted case.

Not done

• bless, doctor and status reading are still Python (epic: t27b in t27 -- port the backend and its tooling from Rust/Python into .t27 #6198).

🤖 Generated with Claude Code

[github-actions]

PR Dashboard

Generated at: 2026-10-04 17:57:58 UTC

• feat(t27b): the ratchet decides in steward.t27 #6218 feat(t27b): the ratchet decides in steward.t27 | Created: 2026-10-04 | Updated: 2026-10-04 | 25 failing / 26 total
• spec(crm-story-reel): v25 -- a client's end card is never drawn in the house's gold #6209 spec(crm-story-reel): v25 -- a client's end card is never drawn in the house's gold | Created: 2026-10-04 | Updated: 2026-10-04 | 7 failing / 25 total
• Port bootstrap/src/ternary/mod.rs (Rust, 3 functions) to specs/port/bootstrap/src/ternary/mod.t27 #6208 Port bootstrap/src/ternary/mod.rs (Rust, 3 functions) to specs/port/bootstrap/src/ternary/mod.t27 | Created: 2026-10-04 | Updated: 2026-10-04 | 6 failing / 25 total
• Port tools/check_devhome_paths.py (Python, 6 functions) to specs/port/tools/check_devhome_paths.t27 #6206 Port tools/check_devhome_paths.py (Python, 6 functions) to specs/port/tools/check_devhome_paths.t27 | Created: 2026-10-04 | Updated: 2026-10-04 | 7 failing / 25 total
• Port tools/c_error_classes.py (Python, 6 functions) to specs/port/tools/c_error_classes.t27 #6205 Port tools/c_error_classes.py (Python, 6 functions) to specs/port/tools/c_error_classes.t27 | Created: 2026-10-04 | Updated: 2026-10-04 | 5 failing / 25 total
• fix(t27c): gen-c arithmetic traps where t27 traps, with no C undefined behaviour #6181 fix(t27c): gen-c arithmetic traps where t27 traps, with no C undefined behaviour | Created: 2026-10-04 | Updated: 2026-10-04 | 0 failing / 3 total
• fix(t27c): read a dotted module name and use path whole #6102 fix(t27c): read a dotted module name and use path whole | Created: 2026-10-04 | Updated: 2026-10-04 | 0 failing / 2 total
• fix(xilinx7): bitwalk prints usage and clean errors instead of panicking (Closes #6039) #6073 fix(xilinx7): bitwalk prints usage and clean errors instead of panicking (Closes #6039) | Created: 2026-10-04 | Updated: 2026-10-04 | 2 failing / 25 total
• self-host: give Gamma (agent C) a /self-host skill for epic #5980 #6057 self-host: give Gamma (agent C) a /self-host skill for epic #5980 | Created: 2026-10-04 | Updated: 2026-10-04 | 1 failing / 25 total
• hooks: pre-commit trusts a PATH tri only if it has hooks pre-commit (#6009) #6011 hooks: pre-commit trusts a PATH tri only if it has hooks pre-commit (#6009) | Created: 2026-10-04 | Updated: 2026-10-04 | 0 failing / 25 total
• ci: every check is a .t27 card -- schema, generator, three pilots (P1 of #5933) #5970 ci: every check is a .t27 card -- schema, generator, three pilots (P1 of #5933) | Created: 2026-10-04 | Updated: 2026-10-04 | 1 failing / 30 total
• fpga: elaboration ratchet back to 176 -- ternary_isa (W459), uart (spec), adapter (NEW-clean) (Closes #5908) #5948 fpga: elaboration ratchet back to 176 -- ternary_isa (W459), uart (spec), adapter (NEW-clean) (Closes #5908) | Created: 2026-10-04 | Updated: 2026-10-04 | 1 failing / 46 total
• CI: spec-guards and emit-bitexact restore master cargo caches; cancel superseded emit-bitexact runs (B25) #5924 CI: spec-guards and emit-bitexact restore master cargo caches; cancel superseded emit-bitexact runs (B25) | Created: 2026-10-04 | Updated: 2026-10-04 | 1 failing / 32 total
• ring-096 and formats.t27 agree on f32 (Closes #5746) #5921 ring-096 and formats.t27 agree on f32 (Closes #5746) | Created: 2026-10-04 | Updated: 2026-10-04 | 1 failing / 56 total
• Port gHashTag/BrowserOS:trios/agent-server/apps/server/src/api/services/queen-lane-credits.ts (TypeScript, 4 functions)  #5778 Port gHashTag/BrowserOS:trios/agent-server/apps/server/src/api/services/queen-lane-credits.ts (TypeScript, 4 functions) | Created: 2026-10-03 | Updated: 2026-10-03 | 3 failing / 32 total
• bees/merger/publisher: reviewer bee as a service, merger reads discounted checks, publisher heading passes check (Closes #5776) #5777 bees/merger/publisher: reviewer bee as a service, merger reads discounted checks, publisher heading passes check (Closes #5776) | Created: 2026-10-03 | Updated: 2026-10-04 | 0 failing / 3 total
• fix(tri): gates preview asks the contexts the ruleset requires, parse-ratchet among them (Closes #5725) #5732 fix(tri): gates preview asks the contexts the ruleset requires, parse-ratchet among them (Closes #5725) | Created: 2026-10-03 | Updated: 2026-10-04 | 0 failing / 7 total
• docs(igla): re-take the corpus figures on master, 1150 specs (Refs #5497) #5610 docs(igla): re-take the corpus figures on master, 1150 specs (Refs #5497) | Created: 2026-10-02 | Updated: 2026-10-02 | 1 failing / 34 total
• The Queen's accept is the merge: dispatch.t27 says so, and its harness measures it #5452 The Queen's accept is the merge: dispatch.t27 says so, and its harness measures it | Created: 2026-10-01 | Updated: 2026-10-02 | 6 failing / 36 total
• docs(tri): mark the Solana tri-mining program and depin.prove rewards superseded by mint-on-acceptance (Closes #5412) #5413 docs(tri): mark the Solana tri-mining program and depin.prove rewards superseded by mint-on-acceptance (Closes #5412) | Created: 2026-10-01 | Updated: 2026-10-02 | 6 failing / 32 total
• Port gHashTag/BrowserOS:trios/agent-server/apps/server/src/lib/container/image-loader.ts (TypeScript, 2 functions) to sp #5320 Port gHashTag/BrowserOS:trios/agent-server/apps/server/src/lib/container/image-loader.ts (TypeScript, 2 functions) to sp | Created: 2026-09-30 | Updated: 2026-10-03 | 0 failing / 3 total
• A "using" in prose became an import; and the per-spec delta check compared strings #5215 A "using" in prose became an import; and the per-spec delta check compared strings | Created: 2026-09-29 | Updated: 2026-10-03 | 10 failing / 42 total
• Auto-loop 2026-09-29: silent-discard parser family + loop infrastructure #5084 Auto-loop 2026-09-29: silent-discard parser family + loop infrastructure | Created: 2026-09-28 | Updated: 2026-10-02 | 10 failing / 45 total
• Carry wave-loop-898's stranded work: green lean 24/24 (fixes red lean CI), mcp registry spec, research corpus #5081 Carry wave-loop-898's stranded work: green lean 24/24 (fixes red lean CI), mcp registry spec, research corpus | Created: 2026-09-28 | Updated: 2026-10-02 | 10 failing / 36 total
• Port gHashTag/BrowserOS:trios/agent-server/apps/server/src/api/services/queen-brief-shape.ts (TypeScript, 2 functions) t #4911 Port gHashTag/BrowserOS:trios/agent-server/apps/server/src/api/services/queen-brief-shape.ts (TypeScript, 2 functions) t | Created: 2026-09-27 | Updated: 2026-10-03 | 0 failing / 3 total
• Seals: 0 of 1072 specs verify, 928 with an unchanged spec_hash — gate it or remove it #4887 Seals: 0 of 1072 specs verify, 928 with an unchanged spec_hash — gate it or remove it | Created: 2026-09-27 | Updated: 2026-10-03 | 10 failing / 41 total
• Wave Loop 473 — compiler-backend aggregate tail / live cold-POR CCLK sweep #4801 Wave Loop 473 — compiler-backend aggregate tail / live cold-POR CCLK sweep | Created: 2026-09-24 | Updated: 2026-10-03 | 0 failing / 3 total
• Bare for statements: 2 loops recovered, and 235 of the 240 sites I cited were out of scope #4777 Bare for statements: 2 loops recovered, and 235 of the 240 sites I cited were out of scope | Created: 2026-09-24 | Updated: 2026-10-03 | 6 failing / 32 total
• Generic type parameters dropped from the declaration and kept in the body: -23 errors #4745 Generic type parameters dropped from the declaration and kept in the body: -23 errors | Created: 2026-09-24 | Updated: 2026-10-03 | 0 failing / 3 total
• Implement the 8 empty function bodies in specs/vsa/packed_vsa.t27 #4729 Implement the 8 empty function bodies in specs/vsa/packed_vsa.t27 | Created: 2026-09-24 | Updated: 2026-10-03 | 7 failing / 32 total
• Wave 684: occlusion four deep, and the two files no list ever reached #4660 Wave 684: occlusion four deep, and the two files no list ever reached | Created: 2026-09-23 | Updated: 2026-10-03 | 7 failing / 32 total
• Capture given/when/then and render them: 6540 clauses, and 169 specs share one unfilled placeholder #4642 Capture given/when/then and render them: 6540 clauses, and 169 specs share one unfilled placeholder | Created: 2026-09-23 | Updated: 2026-10-03 | 7 failing / 32 total
• Implement part 2 of 2 of the empty bodies in specs/git/diff.t27 (7 functions) #4634 Implement part 2 of 2 of the empty bodies in specs/git/diff.t27 (7 functions) | Created: 2026-09-23 | Updated: 2026-10-03 | 0 failing / 3 total
• Port part 1 of 2 of tools/check_withdrawn_live.py to specs/port/tools/check_withdrawn_live.t27 (8 functions) #4581 Port part 1 of 2 of tools/check_withdrawn_live.py to specs/port/tools/check_withdrawn_live.t27 (8 functions) | Created: 2026-09-22 | Updated: 2026-10-03 | 6 failing / 31 total
• Port part 1 of 2 of tools/check_coq_in_build.py to specs/port/tools/check_coq_in_build.t27 (8 functions) #4578 Port part 1 of 2 of tools/check_coq_in_build.py to specs/port/tools/check_coq_in_build.t27 (8 functions) | Created: 2026-09-22 | Updated: 2026-10-03 | 6 failing / 32 total
• Implement the 1 empty function body in specs/test_framework/verilog_bench_harness.t27 #4565 Implement the 1 empty function body in specs/test_framework/verilog_bench_harness.t27 | Created: 2026-09-21 | Updated: 2026-10-03 | 0 failing / 3 total
• Implement part 2 of 2 of the empty bodies in specs/vm/jit_semantics.t27 (4 functions) #4563 Implement part 2 of 2 of the empty bodies in specs/vm/jit_semantics.t27 (4 functions) | Created: 2026-09-21 | Updated: 2026-10-03 | 7 failing / 32 total
• Implement the 1 empty function body in specs/test_framework/graph_drift_detection.t27 #4536 Implement the 1 empty function body in specs/test_framework/graph_drift_detection.t27 | Created: 2026-09-21 | Updated: 2026-10-03 | 0 failing / 3 total
• Feed the swarm from CI, with fuel that does not run out #3978 Feed the swarm from CI, with fuel that does not run out | Created: 2026-09-17 | Updated: 2026-10-02 | 6 failing / 28 total
• coq(CorePhi): replace proofs that were never checked by a compiler #3343 coq(CorePhi): replace proofs that were never checked by a compiler | Created: 2026-09-06 | Updated: 2026-10-02 | 5 failing / 32 total
• Land the formal verification harness on master (it has never run) #2727 Land the formal verification harness on master (it has never run) | Created: 2026-08-27 | Updated: 2026-10-02 | 5 failing / 24 total

Summary

Status	Count
Total Open PRs	41
PRs with Failing Checks	28
PRs with All Checks Green	13
READY	12
FAILING	28
PENDING	0
NO CHECKS YET	0

These columns do not partition: 12 + 28 + 0 + 0 = 40, and there are 41 open PRs. A PR is being counted twice or not at all.

Seal Status

• ⚠️ STALE -- sha256(compiler.rs)=8597b6ded596 != manifest seal=87e5cbd3ad94.
  The committed NMSE numbers were certified against an older compiler.rs.
  Run scripts/reseal-check.sh locally for the two-step reseal command (advisory; not a merge gate).

[gHashTag]

Steward note before merge: required checks validate / check-linked-issue / parse-ratchet are SUCCESS. Non-required reds: Corpus ratchet, coverage, duplicate-bodies and gate-topology are red on master too. spec-guards fails on stale seals of other specs (none of them steward.t27) and does not run on master. Check L1 TRACEABILITY fails only its L2 step, because gen/c/tri/t27b/steward.c is modified. That file is t27c gen-c specs/tri/t27b/steward.t27, byte-identical (sha256 b103e280... at the 30-test revision) to the output of the t27c Railway lab's master build bae81ae, and it passes the spec's 31 tests in loop-tools-gate. The L2 step cannot tell a regenerated file from a hand edit; that gap is filed separately.

[gHashTag]

Follow-up: the merged gen/c/tri/t27b/steward.c (31-test revision, sha256 89770fdc...) was regenerated after merge by the t27c Railway lab's master build. /data/target/release/t27c gen-c gives the same sha256.