Docker Jfr Benchmark Loop
eclipse-rdf4j/rdf4j
Run a repeatable RDF4J performance loop against one JMH benchmark in Docker with Linux Java 26 and JFR CPU-time profiling.
Use IntelliJ EEL APIs for process execution, paths, WSL, or Docker.
Install Eel
$ npx skills add JetBrains/intellij-community --skill eel -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install JetBrains/intellij-community eel --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/JetBrains/intellij-community.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/eel .claude/skills/eel && 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 "eel" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/eel into .claude/skills/eel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "eel", 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/JetBrains/intellij-community/tree/master/.agents/skills/eelType 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 JetBrains/intellij-community --skill eel -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install JetBrains/intellij-community eel --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/eel .agents/skills/eel && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "eel" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/eel into .agents/skills/eel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "eel", 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 JetBrains/intellij-community --skill eel -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install JetBrains/intellij-community eel --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/eel .cursor/skills/eel && 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 "eel" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/eel into .cursor/skills/eel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "eel", 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/JetBrains/intellij-community.git --path .agents/skills/eel--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 JetBrains/intellij-community --skill eel -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install JetBrains/intellij-community eel --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/eel .gemini/skills/eel && 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 "eel" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/eel into .gemini/skills/eel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "eel", 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 JetBrains/intellij-community eelInstalls 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 JetBrains/intellij-community --skill eel -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/eel .github/skills/eel && 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 "eel" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/eel into .github/skills/eel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "eel", 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 JetBrains/intellij-community --skill eel -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install JetBrains/intellij-community eel --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/JetBrains/intellij-community.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/eel .opencode/skills/eel && 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 "eel" agent skill from https://github.com/JetBrains/intellij-community/tree/master/.agents/skills/eel into .opencode/skills/eel/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "eel", 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.
Facts
- Skill name
eel- GitHub stars
- 21k
- Token cost
- ~504 tokens
- SKILL.md length
- 223 words
- Files
- 1
- Skills in repo
- 38
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Use IntelliJ EEL APIs for process execution, paths, WSL, or Docker.
- Tasks that involve Containers
- SKILL.md covers Key Rules and Documentation
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Eel is an agent skill from JetBrains/intellij-community, published by the product's own GitHub organization. Use IntelliJ EEL APIs for process execution, paths, WSL, or Docker.
Its SKILL.md is about 500 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 DevOps & Cloud, covering Containers. It works with JetBrains IDEs, Docker and Java. The repository describes itself as: IntelliJ IDEA & IntelliJ Platform.
When your agent uses it
- Tasks that involve Containers
Example prompts
- “/eel”
Requirements
- Docker
What it can do on your machine
Read from SKILL.md and the folder at commit 562e3a2. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Eel loads about 504 tokens when it runs. Until then it costs about 18 tokens; SKILL.md has 223 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.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated 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.
SKILL.md
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 223 words (~504 tokens).
“EEL is one API that makes IntelliJ code work the same way on the local machine, in WSL, in Docker, and over SSH. It replaces scattered WSL checks, java.io.File, System.getenv, ProcessBuilder, and SystemInfo with a single abstraction.”
- name
- eel
Files
Just SKILL.md in .agents/skills/eel of JetBrains/intellij-community.
Open the folder on GitHubat commit 562e3a2
Compare with similar skills
Eel 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 |
|---|---|---|---|---|---|---|
| Eel this skillJetBrains/intellij-community | 21k | — | ~504 | Automated safety check: Pass | Custom licence | |
| Docker Jfr Benchmark Loopeclipse-rdf4j/rdf4j | 420 | — | ~945 | Automated safety check: Pass | BSD-3-Clause | |
| Opik Local Dev Environmentcomet-ml/opik | 22k | — | ~734 | Automated safety check: Pass | Apache-2.0 | |
| Oci Functions Deployoracle/skills | 873 | — | ~4.6k | Automated safety check: Pass | UPL-1.0 | |
| Writing Dockerfilesancoleman/ai-design-components | 526 | — | ~3.2k | Automated safety check: Notes | MIT | |
| 706 Technologies Containers Dockerjabrena/plinth | 446 | — | ~1.4k | Automated safety check: Pass | Apache-2.0 |
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- Official
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Writing optimized, secure, multi-stage Dockerfiles with language-specific patterns (Python, Node.js, Go, Rust), BuildKit features, and distroless images.
706 Technologies Containers Docker
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Related
Works with
Categories
Questions about Eel
What does Eel do?
Use IntelliJ EEL APIs for process execution, paths, WSL, or Docker. Eel is an agent skill from JetBrains/intellij-community, published by the product's own GitHub organization. Use IntelliJ EEL APIs for process execution, paths, WSL, or Docker.
When should I use Eel?
Eel fits situations like: tasks that involve Containers.
How do I install Eel in Claude Code?
Run `npx skills add JetBrains/intellij-community --skill eel -a claude-code`. Or copy the skill folder (.agents/skills/eel in JetBrains/intellij-community) into .claude/skills/eel in your project. Claude Code loads it when a task matches its description.
How do I install Eel in Codex?
Run `npx skills add JetBrains/intellij-community --skill eel -a codex`. Or copy the skill folder (.agents/skills/eel in JetBrains/intellij-community) into .agents/skills/eel in your project. Codex loads it when a task matches its description.
Can I use Eel in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add JetBrains/intellij-community --skill eel -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/eel, .gemini/skills/eel, .github/skills/eel and .opencode/skills/eel in your project.
What does Eel need to run?
SKILL.md names no scripts, command-line tools or credentials: Eel is instructions for the agent only. Our summary lists: Docker.
Does Eel access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Eel safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Eel use?
Eel has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Eel use?
About 504 tokens (SKILL.md is roughly 2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Eel?
Skills that share tags, products or a category with Eel: Docker Jfr Benchmark Loop (eclipse-rdf4j/rdf4j, 420 stars), Opik Local Dev Environment (comet-ml/opik, 22k stars), Oci Functions Deploy (oracle/skills, 873 stars) and Writing Dockerfiles (ancoleman/ai-design-components, 526 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Eel?
JetBrains (a GitHub organization, an official publisher) maintains it in JetBrains/intellij-community, which has 20,613 GitHub stars. The repository holds 38 skills in this directory. The repository was last updated on October 8, 2026.
Source: JetBrains/intellij-community on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.