Update docs for --rules and --summary CLI options

🤖 Co-Authored-By: Claude Code <noreply@anthropic.com>

Author: lucaspimentel

CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## [Unreleased]
+
+### Added
+- Add `--rules` CLI option to run specific rules ignoring `.editorconfig` (e.g., `--rules CSLINT266,CSLINT268` or `--rules all`)
+- Add `--summary` CLI option to show diagnostics grouped by rule ID
+
 ## [1.4.1] - 2026-03-22
 
 ### Fixed

CLAUDE.md

@@ -16,6 +16,8 @@ dotnet test --filter "FullyQualifiedName~TrailingWhitespaceRuleTests.DetectsTrai
 dotnet run --project src/CsLint.Cli -- [path...]  # lint files or directories (defaults to CWD)
 dotnet run --project src/CsLint.Cli -- --list-rules  # list all available rules
 dotnet run --project src/CsLint.Cli -- --semantic [path...]  # lint with semantic analysis (Tier 4 rules)
+dotnet run --project src/CsLint.Cli -- --rules CSLINT266,CSLINT268 [path...]  # run only specific rules, ignoring .editorconfig
+dotnet run --project src/CsLint.Cli -- --rules all [path...]  # run all rules, ignoring .editorconfig
 dotnet run --project src/CsLint.Cli -- --show-config [path]  # show resolved .editorconfig settings for a path
 ```
 

README.md

@@ -73,6 +73,12 @@ cslint src/ --exclude "**/Generated/*.cs" --exclude "**/*.g.cs"
 # Enable semantic analysis (Tier 4 rules)
 cslint src/ --semantic
 
+# Run only specific rules, ignoring .editorconfig
+cslint src/ --rules CSLINT266,CSLINT268
+
+# Run all rules, ignoring .editorconfig
+cslint src/ --rules all
+
 # List all available rules
 cslint --list-rules