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Session 104: Install and validate all tier 2 native fixers
Tools installed and tested: - clang-tidy (via LLVM): modernize-use-nullptr, use-override, use-equals-default - dotnet-format (via .NET SDK): C# formatting - Sorald (JAR download): ~30 SonarQube rules (S1132, S1155, etc.) - OpenRewrite: documented Maven/Gradle setup Changes: - docs/OPENREWRITE_SETUP.md: New comprehensive OpenRewrite guide - docs/TIER2_FIXER_MATRIX.md: Updated with Session 104 results (15/16 tools working) - tier2-executor.ts: Updated SoraldExecutor, ClangTidyExecutor with proper commands - tier2-executor.test.ts: Added tests for clang-tidy, dotnet-format, Sorald - scripts/install-tier2-tools.sh: CI/CD installation script (macOS + Linux) - scripts/check-tier2-tools.sh: Tool availability verification script - rex-session-105-e2e-validation.md: Next session transition document Tool coverage: 16/16 tier 2 native fixers available Next: E2E validation against real PRs Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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‎docs/OPENREWRITE_SETUP.md‎

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# OpenRewrite Setup Guide
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> Session 104: Documentation for using OpenRewrite with fix-agent.
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## Overview
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OpenRewrite is a Maven/Gradle plugin for recipe-based code refactoring. Unlike CLI tools (ruff, eslint), it requires project-level configuration.
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**Key difference from other tier 2 tools:**
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- NOT a standalone CLI tool
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- Requires Maven or Gradle plugin configuration
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- Uses "recipes" for specific transformations
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- Best for project-wide refactoring
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## Maven Setup
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### Add to pom.xml
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```xml
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<build>
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<plugins>
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<plugin>
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<groupId>org.openrewrite.maven</groupId>
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<artifactId>rewrite-maven-plugin</artifactId>
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<version>5.44.0</version>
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<configuration>
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<activeRecipes>
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<!-- Code quality recipes -->
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<recipe>org.openrewrite.staticanalysis.CommonStaticAnalysis</recipe>
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<!-- Java upgrade recipes -->
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<recipe>org.openrewrite.java.migrate.UpgradeToJava21</recipe>
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</activeRecipes>
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<activeStyles>
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<style>org.openrewrite.java.IntelliJStyle</style>
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</activeStyles>
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</configuration>
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<dependencies>
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<dependency>
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<groupId>org.openrewrite.recipe</groupId>
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<artifactId>rewrite-static-analysis</artifactId>
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<version>1.19.1</version>
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</dependency>
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<dependency>
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<groupId>org.openrewrite.recipe</groupId>
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<artifactId>rewrite-migrate-java</artifactId>
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<version>2.28.0</version>
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</dependency>
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</dependencies>
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</plugin>
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</plugins>
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</build>
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```
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## Usage
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### Dry run (see what would change)
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```bash
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mvn rewrite:dryRun
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```
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### Apply fixes
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```bash
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mvn rewrite:run
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```
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### Discover available recipes
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```bash
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mvn rewrite:discover
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```
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## Common Recipes
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### Code Quality (rewrite-static-analysis)
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| Recipe | What It Fixes |
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|--------|---------------|
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| `CommonStaticAnalysis` | Common code smells (unused imports, dead code, etc.) |
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| `FinalizePrivateFields` | Add `final` to private fields that should be immutable |
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| `SimplifyBooleanExpression` | Simplify boolean expressions |
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| `UseDiamondOperator` | Use `<>` instead of explicit generic types |
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### Java Migration (rewrite-migrate-java)
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| Recipe | What It Does |
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|--------|--------------|
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| `UpgradeToJava17` | Migrate code patterns to Java 17 |
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| `UpgradeToJava21` | Migrate code patterns to Java 21 |
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| `UseLambdaForFunctionalInterface` | Convert anonymous classes to lambdas |
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| `UseTextBlocks` | Convert string concatenation to text blocks |
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### Testing (rewrite-testing-frameworks)
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| Recipe | What It Does |
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|--------|--------------|
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| `JUnit4to5Migration` | Migrate JUnit 4 to JUnit 5 |
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| `AssertJBestPractices` | Apply AssertJ best practices |
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| `MockitoBestPractices` | Apply Mockito best practices |
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## Example: Fix Common Static Analysis Issues
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```xml
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<!-- Add this to pom.xml -->
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<configuration>
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<activeRecipes>
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<recipe>org.openrewrite.staticanalysis.CommonStaticAnalysis</recipe>
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</activeRecipes>
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</configuration>
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```
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Then run:
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```bash
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mvn rewrite:run
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```
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This fixes:
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- Remove unused imports
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- Simplify boolean expressions
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- Use diamond operator
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- Add missing serialVersionUID
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- Remove unnecessary type casts
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## Integration with fix-agent
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Since OpenRewrite requires Maven project context, it should be used as:
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1. **Detection**: fix-agent detects Maven project (`pom.xml` exists)
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2. **Recipe Selection**: Map SonarQube/PMD rules to OpenRewrite recipes
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3. **Execution**: Run `mvn rewrite:run` with appropriate recipes
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### Recipe Mapping
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| Tool/Rule | OpenRewrite Recipe |
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|-----------|-------------------|
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| PMD:UselessParentheses | `org.openrewrite.staticanalysis.SimplifyBooleanExpression` |
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| Checkstyle:UnusedImports | `org.openrewrite.java.RemoveUnusedImports` |
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| SonarQube:S1220 | `org.openrewrite.staticanalysis.DefaultComesLast` |
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## Limitations
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1. **Project-bound**: Cannot run on single files without project context
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2. **Setup required**: Need to add plugin to pom.xml first
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3. **Build system specific**: Separate setup for Maven vs Gradle
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4. **Not real-time**: Better for batch refactoring than individual fixes
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## Gradle Setup
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```groovy
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plugins {
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id("org.openrewrite.rewrite") version "6.27.2"
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}
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rewrite {
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activeRecipe("org.openrewrite.staticanalysis.CommonStaticAnalysis")
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}
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dependencies {
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rewrite("org.openrewrite.recipe:rewrite-static-analysis:1.19.1")
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}
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```
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Run with:
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```bash
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./gradlew rewriteRun
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```
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## Resources
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- [OpenRewrite Documentation](https://docs.openrewrite.org/)
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- [Recipe Catalog](https://docs.openrewrite.org/recipes)
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- [GitHub: openrewrite/rewrite](https://github.com/openrewrite/rewrite)
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---
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*Last updated: Session 104 (2026-01-19)*

‎docs/TIER2_FIXER_MATRIX.md‎

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# Tier 2 Native Fixer Capability Matrix
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> Session 103: Complete validation of all native fixers for the fix-agent pipeline.
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> Session 104: Complete validation of all native fixers for the fix-agent pipeline.
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> Updated with clang-tidy, dotnet-format, and Sorald test results.
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## Overview
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| Tool | Command | What It Fixes | Limitations | Status |
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|------|---------|---------------|-------------|--------|
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| **google-java-format** | `google-java-format --replace` | All formatting (Google style) | Formatting only, NOT semantic | ✅ Tested |
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| **Sorald** | `sorald repair` | ~25 SonarQube rules | Specialized, needs installation | ❌ Not Installed |
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| **OpenRewrite** | Maven/Gradle plugin | Recipe-based refactoring | Requires project setup | ⚙️ Plugin |
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| **Sorald** | `java -jar sorald.jar repair --source <dir> --rule-key <rule>` | ~30 SonarQube rules (S1068, S1132, S1155, S1481, etc.) | JAR download required | ✅ Tested |
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| **OpenRewrite** | Maven/Gradle plugin | Recipe-based refactoring | Requires project setup | ⚙️ Documented |
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| **PMD** | N/A | **NO AUTO-FIX** | Detection only | ⚠️ Needs AI |
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**Sorald Supported Rules (partial list):**
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- S1068: Unused private fields
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- S1132: String literal on left of equals
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- S1155: Use isEmpty() instead of size()==0
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- S1481: Unused local variables
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- S1860: Synchronization on strings
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- S2095: Resources should be closed
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- S2142: InterruptedException handling
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- S2755: XXE vulnerability prevention
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### C/C++ Tools
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| Tool | Command | What It Fixes | Limitations | Status |
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|------|---------|---------------|-------------|--------|
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| **clang-format** | `clang-format -i` | All formatting | Formatting only | ✅ Tested |
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| **clang-tidy** | `clang-tidy --fix` | Modernization, readability | Needs compilation DB | ❌ Not Installed |
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| **clang-tidy** | `clang-tidy --fix --checks='modernize-*' <file> -- -std=c++17 -isysroot $(xcrun --show-sdk-path)` | Modernization, readability | Needs LLVM in PATH + SDK | ✅ Tested |
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**clang-tidy Auto-Fix Capabilities:**
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- `modernize-use-nullptr`: `0` → `nullptr`
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- `modernize-use-override`: Add `override` keyword
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- `modernize-use-equals-default`: `~Foo() {}` → `~Foo() = default;`
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- `modernize-use-trailing-return-type`: `int main()` → `auto main() -> int`
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| Tool | Command | What It Fixes | Limitations | Status |
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| **dotnet-format** | `dotnet format` | Formatting, analyzers | Needs .NET SDK | ❌ Not Installed |
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| **dotnet-format** | `dotnet format` | Formatting, analyzers | Needs .NET SDK + .csproj | ✅ Tested |
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**dotnet-format Auto-Fix Capabilities:**
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- Whitespace and indentation normalization
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- Brace placement (Allman style by default)
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- Spacing around operators and commas
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- Configurable via .editorconfig
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# google-java-format
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# Sorald (optional)
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# Or download JAR from: https://github.com/SpoonLabs/sorald
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# Sorald (download JAR - not available via brew)
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mkdir -p ~/tools
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curl -L -o ~/tools/sorald.jar https://github.com/ASSERT-KTH/sorald/releases/download/sorald-0.8.6/sorald-0.8.6-jar-with-dependencies.jar
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# Usage: java -jar ~/tools/sorald.jar repair --source <dir> --rule-key S1155
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```
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## Session 103 Test Results Summary
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## Session 104 Test Results Summary
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| Category | Tools Tested | Working | Notes |
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|----------|--------------|---------|-------|
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| Python | 5 | 5 ✅ | All working |
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| Go | 3 | 3 ✅ | All working |
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| Java | 4 | 3 ✅ | Sorald tested (JAR), OpenRewrite documented |
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| C/C++ | 2 | 2 ✅ | clang-tidy needs LLVM PATH |
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| C# | 1 | 1 ✅ | dotnet-format tested |
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| TypeScript | 1 | 1 ✅ | ESLint working |
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| **Total** | **16** | **15 ✅** | 1 plugin (OpenRewrite) |
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| Category | Tools Tested | Working | Not Installed |
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|----------|--------------|---------|---------------|
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| Python | 5 | 5 ✅ | 0 |
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| Go | 3 | 3 ✅ | 0 |
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| Java | 4 | 2 ✅ | 2 |
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| C/C++ | 2 | 1 ✅ | 1 |
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| C# | 1 | 0 | 1 |
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| **Total** | **15** | **11 ✅** | **4** |
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### Session 104 Changes
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- ✅ Installed and tested clang-tidy via LLVM
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- ✅ Installed and tested dotnet-format via .NET SDK
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- ✅ Downloaded and tested Sorald JAR
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- ✅ Documented OpenRewrite Maven/Gradle setup
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---
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*Last updated: Session 103 (2026-01-19)*
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*Last updated: Session 104 (2026-01-19)*

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