Per-language linting rules reference — Python Ruff, JS/TS ESLint, Java Checkstyle/PMD/SpotBugs, C# dotnet format/Roslyn/StyleCop: rules, configs, error guidance. Triggers: ruff rules, eslint config, checkstyle. Loaded by linting-workflow-skill and linting-subagent (the executor); gate semantics live in verification-loop-skill.
Scanned 9/20/2026
Install to Claude Code
Skills Directorynpx -y skills add darellchua2/opencode-config-template --skill language-linting-skill --agent claude-codeInstalls into .claude/skills of the current project.
Are you the author of Language Linting Skill?
Add the live security badge to your README — it updates automatically with every re-scan.
[](https://www.skillsdirectory.com/skills/darellchua2-language-linting-skill)More formats (shields.io, HTML) on the badges page.
---
name: language-linting-skill
description: "Per-language linting rules reference — Python Ruff, JS/TS ESLint, Java Checkstyle/PMD/SpotBugs, C# dotnet format/Roslyn/StyleCop: rules, configs, error guidance. Triggers: ruff rules, eslint config, checkstyle. Loaded by linting-workflow-skill and linting-subagent (the executor); gate semantics live in verification-loop-skill."
license: Apache-2.0
compatibility: opencode
category: Language-Specific
---
## What I do
Per-language lint execution and error resolution on top of `linting-workflow-skill` (which owns the generic detect→fix loop and delegation). This file maps languages → linters, detection commands, and the fix guidance that actually needs saying.
## When to use me
Linting a polyglot codebase; decoding a specific linter error; configuring lint in CI.
**Language detection**: file extensions + manifests (`.py`/pyproject → Ruff; `.ts/.tsx/.js/.jsx`/package.json → ESLint; `.java`/pom.xml|build.gradle → Checkstyle+PMD+SpotBugs; `.cs`/`.csproj` → dotnet format + Roslyn analyzers). Orchestration + subagent delegation → `linting-workflow-skill`.
## Command matrix
| Language | Linter(s) | Commands |
|---|---|---|
| Python | Ruff | `ruff check .` · `ruff check --fix` · `ruff format .` (config in pyproject `[tool.ruff]`) |
| JS/TS | ESLint (+Prettier) | `npx eslint . --ext .ts,.tsx,.js,.jsx` · `--fix` for autofixables; package manager via lockfile (pnpm-lock/yarn.lock/package-lock); Prettier for formatting, ESLint for correctness |
| Java | Checkstyle (style) + PMD (design) + SpotBugs (bytecode bugs) | Maven: `mvn checkstyle:check pmd:check spotbugs:check` · Gradle: `./gradlew checkstyleMain pmdMain spotbugsMain` |
| C# | dotnet format + Roslyn/StyleCop analyzers | `dotnet format --verify-no-changes` (CI) · `dotnet format` (fix); severity via `.editorconfig` |
## House rules
- **Fix semantics**: autofix for mechanical issues (`--fix`, `ruff format`); manual review for semantic findings (PMD design, SpotBugs correctness, Roslyn analyzers) — never blanket-suppress.
- **Zero NEW errors on changed files** is the gate (pre-existing noted, not blocked) — matches `plan-execution-skill` --gate semantics.
- Suppressions carry a reason and scope (`// noqa: E501 # long URL in docstring`), never bare `// eslint-disable-next-line`.
- Error-code decoding: match the code to the rule family (Ruff `E/F/I/N/UP/B/SIM/C4`, ESLint plugin prefixes, Checkstyle module names) and fix the pattern, not the instance.
- Spring Boot: enable Bean Validation + actuator health checks as part of the lint pass config (house standard for Java services).
**Related:** `security-audit-skill` (security scanning, not lint) · `linting-workflow-skill` (generic loop).
> Removed 2026-09: per-linter config file listings, per-error-code explanation tables, package-manager detection walkthroughs, Spring/Gradle XML config dumps, worked fix transcripts — each linter's rule catalog is model-known; the matrix + fix semantics + suppression discipline are the durable content.
Is this your skill, or is something wrong with this listing? Request removal or report an issue. Author removals are honored within 72 hours.
No comments yet. Be the first to comment!
