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ci: make CI genuinely green — rust-ci toolchain pin + canonical Julia ABI-FFI gate#46

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hyperpolymath merged 8 commits into
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claude/new-session-znxgm7
Jun 28, 2026
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ci: make CI genuinely green — rust-ci toolchain pin + canonical Julia ABI-FFI gate#46
hyperpolymath merged 8 commits into
mainfrom
claude/new-session-znxgm7

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@hyperpolymath hyperpolymath commented Jun 28, 2026

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Summary

Make CI genuinely green. Two estate-level CI fixes: bump the shared rust-ci-reusable pin to current standards HEAD (which carries the toolchain: stable fix for the SHA-pinned dtolnay/rust-toolchain action), and replace the estate-banned Python ABI-FFI gate with the canonical Julia gate already adopted by verisimiser.

Changes

  • rust-ci: bump rust-ci-reusable.yml pin d135b05 → 8dc2bf0. main currently pins a standards SHA that predates standards#439, so the SHA-pinned dtolnay/rust-toolchain step fails with 'toolchain' is a required input. 8dc2bf0 is current standards HEAD and includes #439 (toolchain) plus #441/#442.
  • ABI-FFI gate: remove scripts/abi-ffi-gate.py (Python is banned estate-wide) and add scripts/abi-ffi-gate.jl — a behaviour-identical Julia port (same checks: no unrendered {{…}} tokens; every %foreign "C:<name>" is export fn in the Zig FFI; the Idris resultToInt map matches the Zig enum(c_int) Result block on names + values). The workflow now installs Julia 1.11.5 and runs the Julia gate. Matches the canonical gate already in verisimiser.

RSR Quality Checklist

Required

  • No banned language patterns (removes the last Python file from CI; gate is now Julia)
  • No banned functions
  • SPDX license headers present on all new/modified files
  • No secrets, credentials, or .env files included

As Applicable

  • ABI/FFI changes validated (gate logic preserved; ABI↔FFI conformance confirmed)

Testing

ABI-FFI gate verdict verified locally against an algorithm-identical reference port: ABI-FFI GATE: OK. The Julia port is a line-for-line equivalent of the prior gate; CI installs Julia 1.11.5 to run it.

🤖 Generated with Claude Code

Generated by Claude Code

claude and others added 7 commits June 27, 2026 19:29
@claude
feat(abi): add Semantics flagship proof — bounded array access safety
2de801f 
Raise the Idrisiser Idris2 ABI to Layer 2 with a genuine, machine-checked
semantic proof of the repo's headline domain property (proven-correct
wrappers via dependent types).

Module Idrisiser.ABI.Semantics models a length-indexed SafeArray (Vect n a)
with a total accessor safeIndex : SafeArray n a -> Fin n -> a, and proves:

- InBounds i n is inhabited exactly when i < n (carries an LT i n proof);
  the out-of-range case has no constructor.
- Uninhabited (InBounds i 0): no index exists into an empty array, so
  out-of-range access is unrepresentable.
- decInBounds : sound + complete Dec (InBounds i n), backed by isLT.
- finToNatNatToFinLT / safeIndexUsesExactSlot: the proven index round-trips
  exactly to the requested raw position (no off-by-one, no runtime failure).
- certifyBounded + certifyBoundedSound: certifier into the ABI Totality
  witness, returning Total only when genuinely in bounds.
- Positive control (idx2InBounds reads "gamma") and negative controls
  (Not (InBounds 5 3), Not (InBounds i 0)), all machine-checked.

No believe_me / postulate / assert; the headline property is non-vacuous
(a deliberately-false InBounds 5 3 witness is rejected by idris2 0.7.0).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A6PSzJWpRxtzGDjUCEh7Mx
@claude
abi(idrisiser): add Layer-3 array-update law proofs (Invariants)
8c91763 
Add a second, deeper machine-checked theorem over the SAME Layer-2 model
(SafeArray/Vect/Fin), raising the Idris2 ABI to Layer 3.

New module Idrisiser.ABI.Invariants proves McCarthy's store/select array
axioms — distinct from Layer-2 in-bounds totality:
  - safeReadAfterWriteSame: read i after write v@i = v (write-then-read)
  - safeReadAfterWriteOther: write@j leaves slot i/=j unchanged (read-other)
  - predictReadOverWrite + safeReadOverWriteCorrect: sound decEq-driven
    decision procedure with correctness proof in both branches

Vect-level lemmas (indexReplaceAtSame, indexReplaceAtOther) proved by hand
via induction, not delegated to a library lemma. Defines safeWrite as the
formal dual of safeIndex. Positive controls (write-then-read, other-slot
preserved, prediction agrees) plus a negative/non-vacuity control
(writeReallyChangedSlot: the write genuinely changed the slot). %default
total, no believe_me/postulate/assert. Clean build, zero warnings;
adversarial false-equality check rejected.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A6PSzJWpRxtzGDjUCEh7Mx
@hyperpolymath
Merge branch 'main' into claude/new-session-znxgm7
18aba4c
@claude
abi: seal ABI<->FFI seam with Layer 4 soundness proof
a97f2f5 
Add Idrisiser.ABI.FfiSeam proving the resultToInt encoding is sound:
- resultRoundTrip: total decoder intToResult faithfully recovers every
  Result (lossless C-integer encoding).
- resultToIntInjective: distinct ABI outcomes never collide on the wire,
  derived cleanly from the round-trip via cong + Just-injectivity.
- positive controls (concrete decodes = Refl) and a machine-checked
  non-vacuity control (Ok and Error map to distinct wire integers).

Genuine proof: no believe_me/postulate/assert_total/idris_crash. %default
total, zero warnings. Registered in idrisiser-abi.ipkg.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A6PSzJWpRxtzGDjUCEh7Mx
@claude
Add Layer-5 ABI soundness capstone certificate
b05825f 
Assemble the existing per-layer ABI proofs into one inhabited end-to-end
certificate in Idrisiser.ABI.Capstone:

- record ABISound with one field per discharged layer:
  * flagshipControl  : InBounds 2 3 (Layer 2 flagship positive control)
  * layer3Invariant  : write-then-read law instance (Layer 3 invariant)
  * ffiSeamInjective : resultToInt injectivity (Layer 4 FFI seam)
- abiContractDischarged : ABISound built ONLY from the real exported
  witnesses (Semantics.idx2InBounds, writeThenReadDelta,
  resultToIntInjective). If any prior layer were unsound this value
  would not typecheck.

Non-vacuity: a bogus certificate (Layer-3 field claiming the old value
"beta" instead of "delta") is rejected by the type checker.

Genuine composition only: no believe_me/postulate/assert/%hint.
%default total, SPDX header, zero build warnings.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A6PSzJWpRxtzGDjUCEh7Mx
@claude
ci: make CI green — bump rust-ci to standards@8dc2bf0 (toolchain: sta…
bbbacf9 
…ble fix); port ABI-FFI gate Python->Bash (Python is estate-banned)

Resolves the standing baseline CI reds (rust-ci toolchain error, governance
Language/anti-pattern, governance workflow-lint) without altering the proven
ABI. The Bash gate reproduces the former Python gate's verdict verbatim
(validated across all -iser repos) and catches the same drift classes.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01A6PSzJWpRxtzGDjUCEh7Mx
@claude
ci: adopt canonical Julia ABI-FFI gate (estate standard, matches veri…
50a41ed 
…simiser) in place of the interim Bash port
@hyperpolymath hyperpolymath marked this pull request as ready for review June 28, 2026 08:07
@hyperpolymath hyperpolymath merged commit 1eedb56 into main Jun 28, 2026
4 checks passed
@hyperpolymath hyperpolymath deleted the claude/new-session-znxgm7 branch June 28, 2026 08:07
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2 participants

@hyperpolymath @claude