[joshlf]

Add an inline Rust assertion harness that selects the production cast plan,
requires checked metadata arithmetic to succeed, invokes the actual unchecked
conversion, and compares complete sizes using the independent remainder-based
reference. Cover sized-to-sized, sized-to-DST and affine DST-to-DST plans.

Prove metadata representability from the accepted plan and a complete source
size fitting usize, covering the stronger isize-bound caller domain. Retain
independent contract checks and explicit witness guards. Pointer provenance,
reference validity and KnownLayout implementations remain separate obligations.

Validation: fresh required proofs and axiom audit, all170 library tests, and
MSRV/stable/nightly and workspace Clippy checks. Both complete final models
reject an incorrect arithmetic model and a failing root assertion.

Agent-authored-by: AI agent acting on joshlf's behalf

---

• 　  Prove record construction against independent Rust references #3744
• 👉 Prove cast metadata composition against reference sizes #3777
• 　  Prove numerical cast plan selection and metadata conversion #3776
• 　  Prove cast validation and exact metadata inference #3755
• 　  Prove allocation size preparation and tail containment #3790
• 　  Prove the concrete CastUnsized layout gate #3789
• 　  Prove split lengths and non-overlapping numerical regions #3788
• 　  Prove byte advancement and padding sequence queries #3754
• 　  Prove normalized layout padding and field extension #3753
• 　  Prove concrete pointer metadata operations #3787
• 　  Prove exact trailing sizes, padding and capacity #3752
• 　  Prove primitive layout constructors with recursive mathematical models #3751
• 　  Compare nested DST sizes with a recursive Rust oracle #3749
• 　  Model alignment and phase encoding as a bounded mathematical pair #3747
• 　  Refine recursive record semantics into normalized layouts #3743
• 　  Prove trailing-layout normalization and capacity arithmetic #3742
• 　  Reuse Aeneas specifications for views and indexed loops #3745
• 　  Strengthen arithmetic specifications and prove arithmetic corollaries #3746
• 　  Check native total and partial Aeneas specifications #3739
• 　  Prove unsigned byte-order reads, writes and updates #3800
• 　  Verify doc-owned specifications over recursive mathematical models #3738
• 　  Separate numerical cast planning from typed pointer projection #3774
• 　  Move pointer cast implementation into its own source file #3773
• 　  Share Rust mathematical models across Anneal frontends #3799

Latest Update: v8 — Compare vs v7

📚 Full Patch History

Links show the diff between the row version and the column version.

Version	v7	v6	v5	v4	v3	v2	v1	Base
v8	vs v7	vs v6	vs v5	vs v4	vs v3	vs v2	vs v1	vs Base
v7		vs v6	vs v5	vs v4	vs v3	vs v2	vs v1	vs Base
v6			vs v5	vs v4	vs v3	vs v2	vs v1	vs Base
v5				vs v4	vs v3	vs v2	vs v1	vs Base
v4					vs v3	vs v2	vs v1	vs Base
v3						vs v2	vs v1	vs Base
v2							vs v1	vs Base
v1								vs Base

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[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-05T17:21:11.111844Z	981ac78	PR opened
🔒 Security Review	✅ Completed 2026-10-05T17:22:11.016975Z	981ac78	PR opened

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 58 lines in your changes missing coverage. Please review.
✅ Project coverage is 51.50%. Comparing base (000a31f) to head (f6cb425).

Files with missing lines	Patch %	Lines
zerocopy/src/layout/cast_from.rs	0.00%	53 Missing ⚠️
zerocopy/src/layout/tail_transform_checks.rs	0.00%	5 Missing ⚠️

Additional details and impacted files

@@                          Coverage Diff                          @@
##           Gdbl6xaqz63ttxnug4rlquswinz6f64o6    #3777      +/-   ##
=====================================================================
- Coverage                              52.17%   51.50%   -0.67%     
=====================================================================
  Files                                     27       27              
  Lines                                   4393     4450      +57     
=====================================================================
  Hits                                    2292     2292              
- Misses                                  2101     2158      +57     

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