# CSProj Remediation Plan

## Goals
- Apply safe, deterministic fixes first, then expand to reviewed automation and manual refactors.
- Maintain offline posture and preserve build/test determinism.
- Use staged scope expansion (file -> project -> module -> repo) with validation gates.

## Tier Mapping

### Tier 0 (safe automation)
- UsingNotSorted: sort using directives alphabetically (global using first, then using).
- UsingInsideNamespace: move using directives to top-level only when a single namespace is present.
- Using directives inside conditional preprocessor blocks are skipped for manual review.

### Tier 1 (reviewed automation)
- NamespaceNotFileScoped: convert to file-scoped only with single-namespace files and a validated transform plan.
- PrivateFieldNaming: symbol-aware rename to _camelCase.
- ConstNaming: symbol-aware rename to PascalCase.
- AsyncNaming: symbol-aware rename to *Async suffix.
- ConfigureAwaitMissing: add ConfigureAwait(false) for library-like projects only, with review.

### Tier 2 (manual remediation)
- FileLength>100: refactor/split files.
- NamespaceMissing: determine correct StellaOps namespace and add.
- NamespaceNotStellaOps: update namespace with module/domain decision.
- BlockingAsync: remove .Result/.Wait/GetAwaiter().GetResult() usage.
- ServiceLocator: replace with constructor injection/composition root.
- AssemblyLoadFrom: replace with approved plugin loader paths.
- Test gaps: add missing layers per TEST_COVERAGE_MATRIX.md.

## Guardrails
- No new dependencies unless BUSL-compatible and license-gated.
- Deterministic, offline tooling only.
- AST or symbol-aware edits for renames; avoid regex-only renames.
- Each change must log: file path, action, outcome, and before/after issue counts.

## Scope Ramp Gates
- Stage 0 (single file): project builds; re-audit shows zero new issues and at least one issue reduced.
- Stage 1 (5-10 files in same project): project builds; re-audit deltas positive; no new issue categories introduced.
- Stage 2 (single project): build + existing project tests (if any) pass; re-audit deltas positive.
- Stage 3 (module-wide): module build/tests pass; re-audit deltas positive.
- Stage 4 (repo-wide): only after Stage 3 is stable; full re-audit required.

## Logging Schema
- CSV log under `docs/implplan/audits/csproj-standards/remediation/`:
  - timestamp_utc, scope, file_path, project_path, issues_before, actions, status, notes
- Markdown summary per run with:
  - scope, files touched, issue deltas, skipped reasons, validation results