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Raise docstring coverage for APIs touched by spelling migration #398

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Description

@coderabbitai

Summary

Raise docstring coverage for functions touched by pull request #363 to the required 80% threshold.

Rationale

The docstring coverage check reports 69.07% coverage. It analyzed 97 functions across 50 files. The coverage gate requires at least 80%.

Affected areas

Required changes

  • Identify each changed function that lacks a required docstring.
  • Add accurate Rust documentation comments that describe the function contract, inputs, outputs, and relevant failure or boundary behavior.
  • Keep comments synchronized with the renamed public APIs and current module layout.

Acceptance criteria

  • The docstring coverage check reports at least 80% for the pull-request scope.
  • Added docstrings describe behavior rather than restating identifiers.
  • Documentation validation passes.

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Activity

  1. added
    documentationImprovements or additions to documentation
    enhancementNew feature or request
    lowBacklog work, hygiene, or technical debt planned opportunistically, without a strict deadline.
    on Sep 4, 2026
  2. added a commit that references this issue on Sep 27, 2026
  3. buzzybee-df12 commented on Oct 17, 2026

    @buzzybee-df12
    Collaborator

    #398 acceptance evidence for candidate ff994dfbecf3c729f41dc183dcef714edb0337d6 (base f7a5a93132e989490021cbacbb9cc865e40a467f):

    The fresh rename-aware Rust source census counted every surviving touched function/method, including two definitions inside proptest!: 264/264 documented (100.00%), zero undocumented, and zero AST parse errors. It excluded only unchanged definitions, removed base-only definitions, generated expansions, non-definitions, and non-Rust files. The assessment also checked the 20 new behavioral comments and five corrections. Exact-head Rustdoc generation and doctests passed in CI run 39024186519; the seven local gates passed sequentially.

    The assessor could not obtain CodeRabbit's separate internal coverage-check metric. The issue's acceptance criteria require a PR-scope coverage result of at least 80%, but do not require that particular internal checker; the reproducible exact-head census is 100%. I am therefore closing #398 on the documented acceptance evidence.

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documentationImprovements or additions to documentationenhancementNew feature or requestlowBacklog work, hygiene, or technical debt planned opportunistically, without a strict deadline.

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