Entry point for everything MegaLinter. An agent skill from nvuillam/npm-groovy-lint.
$ npx skills add nvuillam/npm-groovy-lint --skill megalinter -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install nvuillam/npm-groovy-lint megalinter --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/nvuillam/npm-groovy-lint.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/megalinter .claude/skills/megalinter && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "megalinter" agent skill from https://github.com/nvuillam/npm-groovy-lint/tree/main/.claude/skills/megalinter into .claude/skills/megalinter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "megalinter", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/nvuillam/npm-groovy-lint/tree/main/.claude/skills/megalinterType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add nvuillam/npm-groovy-lint --skill megalinter -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install nvuillam/npm-groovy-lint megalinter --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nvuillam/npm-groovy-lint.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/megalinter .agents/skills/megalinter && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "megalinter" agent skill from https://github.com/nvuillam/npm-groovy-lint/tree/main/.claude/skills/megalinter into .agents/skills/megalinter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "megalinter", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add nvuillam/npm-groovy-lint --skill megalinter -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install nvuillam/npm-groovy-lint megalinter --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nvuillam/npm-groovy-lint.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/megalinter .cursor/skills/megalinter && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "megalinter" agent skill from https://github.com/nvuillam/npm-groovy-lint/tree/main/.claude/skills/megalinter into .cursor/skills/megalinter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "megalinter", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/nvuillam/npm-groovy-lint.git --path .claude/skills/megalinter--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add nvuillam/npm-groovy-lint --skill megalinter -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install nvuillam/npm-groovy-lint megalinter --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nvuillam/npm-groovy-lint.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/megalinter .gemini/skills/megalinter && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "megalinter" agent skill from https://github.com/nvuillam/npm-groovy-lint/tree/main/.claude/skills/megalinter into .gemini/skills/megalinter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "megalinter", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install nvuillam/npm-groovy-lint megalinterInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add nvuillam/npm-groovy-lint --skill megalinter -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/nvuillam/npm-groovy-lint.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/megalinter .github/skills/megalinter && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "megalinter" agent skill from https://github.com/nvuillam/npm-groovy-lint/tree/main/.claude/skills/megalinter into .github/skills/megalinter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "megalinter", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add nvuillam/npm-groovy-lint --skill megalinter -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install nvuillam/npm-groovy-lint megalinter --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/nvuillam/npm-groovy-lint.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/megalinter .opencode/skills/megalinter && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "megalinter" agent skill from https://github.com/nvuillam/npm-groovy-lint/tree/main/.claude/skills/megalinter into .opencode/skills/megalinter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "megalinter", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
megalinterEntry point for everything MegaLinter. An agent skill from nvuillam/npm-groovy-lint.
Megalinter is an agent skill from nvuillam/npm-groovy-lint. Entry point for everything MegaLinter. Use when the user wants to lint their repository, set up MegaLinter, check or fix lint errors, make CI lint jobs pass, or says "run megalinter", "fix lint errors", "make the linters happy", "clean up code quality". Detects the repository state and orchestrates the megalinter-setup, megalinter-check and megalinter-fix skills in a loop until the repository is clean.
Its SKILL.md is about 920 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Linting and formatting. It works with Docker. The repository describes itself as: Lint, format and auto-fix your Groovy / Jenkinsfile / Gradle files using command line. The licence is MIT.
6 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 2080dff. It shows what the files ask for, not the result of running them.
Pre-approves these tools, so the agent can use them without asking each time:
BashReadGrepGlobSkillAgentAskUserQuestionFrom allowed-tools in the SKILL.md frontmatter.
Shell commands in SKILL.md call:
npxFrom the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md. Its commands use npx, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Megalinter loads about 915 tokens when it runs. Until then it costs about 104 tokens; SKILL.md has 414 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check noted patterns worth knowing about, such as sudo or a known installer.
allowed-tools: Bash, Read, Grep, Glob, Skill, Agent, AskUserQuestionAutomated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from nvuillam/npm-groovy-lint at commit 2080dff, republished under its MIT licence (© nvuillam). 414 words, ~915 tokens.
.claude/skills/megalinter/SKILL.md (or your agent's skills folder).You orchestrate MegaLinter on this repository. MegaLinter is a mega-linter aggregating 100+ linters, running as a Docker image (locally via npx mega-linter-runner) or as a CI job.
.mega-linter.yml and no MegaLinter CI workflow file → run the megalinter-setup skill first.megalinter-check skill:megalinter-fix skill with the collected error list.megalinter-check again — in local mode, prefer its targeted re-check (parallel standalone linter runs restricted to previously-failing linters and fixed files).megalinter-check reported slow_linters (even on a green run), relay its performance suggestions to the user at the end of the loop — speed wins are proposed, never applied without agreement.main/master): create a branch like megalinter/fix-<topic> first.If your environment supports spawning sub-agents (e.g. a Task/Agent tool) and the megalinter-watcher, megalinter-runner, megalinter-fixer agent definitions are installed (the megalinter-setup skill installs them in your platform's agents folder, e.g. .claude/agents/, .opencode/agent/, .github/agents/):
megalinter-watcher and local runs to megalinter-runner — they keep the large logs out of your context and return only a compact error list.megalinter-fixer per failing linter to fix several linters in parallel.If sub-agents are not available, perform every step inline following the skill instructions.
© nvuillam, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Just SKILL.md in .claude/skills/megalinter of nvuillam/npm-groovy-lint.
Open the folder on GitHubat commit 2080dff
We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in nvuillam/npm-groovy-lint, which our catalogue first saw on October 7, 2026.
Megalinter next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Megalinter this skillnvuillam/npm-groovy-lint | 248 | 1 repos | ~915 | Automated safety check: Notes | MIT | |
| Golang Continuous Integrationsamber/cc-skills-golang | 3.4k | — | ~3.7k | Automated safety check: Pass | MIT | |
| Debug CIweb-infra-dev/rslint | 460 | — | ~2.8k | Automated safety check: Pass | MIT | |
| Kouchou AI Developmentdigitaldemocracy2030/kouchou-ai | 171 | — | ~540 | Automated safety check: Notes | AGPL-3.0 | |
| Verifygocronx-team/gocron | 808 | — | ~529 | Automated safety check: Pass | MIT | |
| Dev Verifyclassmethod/tsumiki | 974 | — | ~848 | Automated safety check: Pass | MIT |
samber/cc-skills-golang
GitHub Actions CI/CD pipeline configuration for Golang projects — workflow files for test, lint, SAST, coverage and vulnerability-scan jobs, Dependabot and Renovate config files, GoReleaser release…
web-infra-dev/rslint
Reproduce Linux CI failures locally using Docker when the same tests pass on the host, especially Go platform differences and VS Code extension tests requiring xvfb.
digitaldemocracy2030/kouchou-ai
Local development setup, build and lint commands, environment configuration, and deployment helpers for the kouchou-ai repo.
gocronx-team/gocron
Reproduce the complete gocron CI pipeline locally and report every result.
classmethod/tsumiki
This skill should be used when the user asks to "dev-verify", "実装の検証", "完了チェック", "verify implementation", "全テスト実行", "run all tests", "dev-verify auth".
GPTomics/bioSkills
Authors bioinformatics pipelines in WDL (Workflow Description Language) run by Cromwell or miniwdl, targeting the GATK/Broad and Terra/AnVIL/BioData Catalyst cloud ecosystem, with tasks, workflows…
nvuillam/npm-groovy-lint
Collect MegaLinter lint errors for the current repository. An agent skill from nvuillam/npm-groovy-lint.
nvuillam/npm-groovy-lint
Install or upgrade MegaLinter on a repository. An agent skill from nvuillam/npm-groovy-lint.
nvuillam/npm-groovy-lint
Upgrade CodeNarc and the bundled Java dependencies (jackson, logback, slf4j, janino, GMetrics, Groovy libs) that ship inside lib/java/, rebuild the deterministic CodeNarcServer.jar, and verify…
nvuillam/npm-groovy-lint
Fix the errors reported by MegaLinter. An agent skill from nvuillam/npm-groovy-lint.
nvuillam/npm-groovy-lint
Watch the GitHub PR for the current branch, wait for CI to finish, and autonomously fix failing jobs by reading logs, editing sources, and pushing.
Works with
Categories
Entry point for everything MegaLinter. An agent skill from nvuillam/npm-groovy-lint. Megalinter is an agent skill from nvuillam/npm-groovy-lint. Entry point for everything MegaLinter.
Megalinter fits situations like: the user wants to lint their repository; set up MegaLinter; fix lint errors; make CI lint jobs pass.
Run `npx skills add nvuillam/npm-groovy-lint --skill megalinter -a claude-code`. Or copy the skill folder (.claude/skills/megalinter in nvuillam/npm-groovy-lint) into .claude/skills/megalinter in your project. Claude Code loads it when a task matches its description.
Run `npx skills add nvuillam/npm-groovy-lint --skill megalinter -a codex`. Or copy the skill folder (.claude/skills/megalinter in nvuillam/npm-groovy-lint) into .agents/skills/megalinter in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add nvuillam/npm-groovy-lint --skill megalinter -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/megalinter, .gemini/skills/megalinter, .github/skills/megalinter and .opencode/skills/megalinter in your project.
Going by SKILL.md and its folder, Megalinter needs the command-line tools its instructions call (npx). Our summary lists: Node.js; Docker. Its frontmatter pre-approves these tools: Bash, Read, Grep, Glob, Skill, Agent, AskUserQuestion.
SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
Megalinter is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 915 tokens (SKILL.md is roughly 3.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
Skills that share tags, products or a category with Megalinter: Golang Continuous Integration (samber/cc-skills-golang, 3.4k stars), Debug CI (web-infra-dev/rslint, 460 stars), Kouchou AI Development (digitaldemocracy2030/kouchou-ai, 171 stars) and Verify (gocronx-team/gocron, 808 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
nvuillam (a GitHub user) maintains it in nvuillam/npm-groovy-lint, which has 248 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on October 4, 2026.
Source: nvuillam/npm-groovy-lint on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.
