Revise unsafe Rust skill to V2 after V1 evaluation failures

[joshlf]

Translate the V1 evaluation failures into general proof rules rather than
adding fixture-specific hazard trivia.

Require CONTRACT-BROKEN to have a valid UB-free falsifying execution. An
execution that contains UB may prove UNSOUND, but it cannot establish a defined
observation before or after the UB; without a separate UB-free witness, the
corresponding behavioral promise remains UNPROVED.

Require an explicit supported toolchain and configuration predicate, preserve
conflicting controlling policy sources, distinguish a conservative audit domain
from the project's unresolved support promise, and reject an earliest version,
CI sample, or convenient policy interpretation as proof of the whole domain.

Forbid promotion of one constructor, conversion, deserializer, or other
producer's precondition into a universal invariant of its output type. Require
an authoritative universal premise, enforced construction-and-preservation
closure, a verified theorem or explicit TCB premise, or a derivation specific
to the values actually consumed.

Strengthen literal-clause closure, full supported-domain composition, and
boundary and adversarial falsification before PROVED. Update the report
template and proof, configuration, API, and reporting references to carry the
same rules.

Agent-Authored-By: AI agent acting on Josh Liebow-Feeser's behalf

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This PR is on branch codex/unsafe-rust-stack.

• 　  Harden V5 staged runtime and recovery #3607
• 　  Authenticate V5 review evidence through aggregation #3604
• 　  Make the V5 diagnostic harness executable and fail closed #3603
• 　  Draft and validate the V5 diagnostic-prequalification harness #3601
• 　  Harden V5 evaluation and terminal confirmation #3537
• 　  Require evidence-bearing proof kernels in unsafe Rust V5 #3536
• 　  Analyze why the V4 focused gate failed #3535
• 　  Blind-score and aggregate the V4 focused evaluation #3534
• 　  Collect all V4 focused audit reports #3533
• 　  Freeze the V4 focused confirmation protocol #3532
• 　  Revise the unsafe Rust skill after the V3 evaluation #3531
• 　  Analyze the V3 targeted confirmation failures #3530
• 　  Blind-score the V3 targeted confirmation #3529
• 　  Collect the V3 targeted confirmation reports #3528
• 　  Freeze the V3 targeted confirmation protocol #3527
• 　  Revise unsafe Rust skill around domain and verdict certificates #3524
• 　  Evaluate V2 against V1 and the V1 core ablation #3523
• 👉 Revise unsafe Rust skill to V2 after V1 evaluation failures #3522

Latest Update: v11 — Compare vs v10

📚 Full Patch History

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

Version	v10	v9	v8	v7	v6	v5	v4	v3	v2	v1	Base
v11	v10	v9	v8	v7	v6	v5	v4	v3	v2	v1	Base
v10		v9	v8	v7	v6	v5	v4	v3	v2	v1	Base
v9			v8	v7	v6	v5	v4	v3	v2	v1	Base
v8				v7	v6	v5	v4	v3	v2	v1	Base
v7					v6	v5	v4	v3	v2	v1	Base
v6						v5	v4	v3	v2	v1	Base
v5							v4	v3	v2	v1	Base
v4								v3	v2	v1	Base
v3									v2	v1	Base
v2										v1	Base
v1											Base

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.85%. Comparing base (1bfbbdf) to head (96bc345).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3522   +/-   ##
=======================================
  Coverage   91.85%   91.85%           
=======================================
  Files          20       20           
  Lines        6093     6093           
=======================================
  Hits         5597     5597           
  Misses        496      496           

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