MCPInstall

jules

Delegate coding tasks to Google Jules AI agent for asynchronous execution. Use when user says: 'have Jules fix', 'delegate to Jules', 'send to Jules', 'ask Jules to', 'check Jules sessions', 'pull Jules results', 'jules add tests', 'jules add docs', 'jules review pr'. Handles: bug fixes, documentation, features, tests, refactoring, code reviews. Works with GitHub repos, creates PRs.

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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/sanjay3290/ai-skills --skill jules
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads jules automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Jules Task Delegation

Delegate coding tasks to Google's Jules AI agent on GitHub repositories.

Environment Variables

VariableRequiredDescription
JULES_API_KEYFor API authAPI key from jules.google.com/settings

Setup (Run Before First Command)

Two auth paths are available. Use Path 1 for interactive use, Path 2 for headless/agent use.

Path 1: CLI (Interactive)

1. Install CLI

which jules || npm install -g @google/jules

2. Check Auth

jules remote list --repo

If fails → tell user to run jules login (or --no-launch-browser for headless)

Path 2: API Key (Headless / Agent Use)

1. Get API Key

Get key from jules.google.com/settings (3-key limit per account).

2. Set Environment Variable

export JULES_API_KEY="your-api-key"

3. Verify

curl -s -H "x-goog-api-key: $JULES_API_KEY" \
  "https://jules.googleapis.com/v1alpha/sessions?pageSize=1" | head -20

Common Setup (Both Paths)

Auto-Detect Repo

git remote get-url origin 2>/dev/null | sed -E 's#.*(github\.com)[/:]([^/]+/[^/.]+)(\.git)?#\2#'

If not GitHub or not in git repo → ask user for --repo owner/repo

Verify Repo Connected

Check repo is in jules remote list --repo. If not → direct to https://jules.google.com

Commands (CLI)

Create Tasks

jules new "Fix auth bug"                                   # Auto-detected repo
jules new --repo owner/repo "Add unit tests"               # Specific repo
jules new --repo owner/repo --parallel 3 "Implement X"     # Parallel sessions
cat task.md | jules new --repo owner/repo                  # From stdin

Monitor

jules remote list --session    # All sessions
jules remote list --repo       # Connected repos

Retrieve Results

jules remote pull --session <id>         # View diff
jules remote pull --session <id> --apply # Apply locally
jules teleport <id>                      # Clone + apply

Latest Session Shortcut

LATEST=$(jules remote list --session 2>/dev/null | awk 'NR==2 {print $1}')
jules remote pull --session $LATEST

Commands (API)

Create a Task

curl -s -X POST "https://jules.googleapis.com/v1alpha/sessions" \
  -H "x-goog-api-key: $JULES_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "title": "Fix auth bug",
    "prompt": "Fix the authentication timeout issue in src/auth.ts",
    "sourceContext": {
      "repository": "owner/repo",
      "branchName": "main"
    },
    "automationMode": "AUTO_CREATE_PR",
    "requirePlanApproval": false
  }'

Key fields:

  • prompt — The task description (required)
  • sourceContext.repository — GitHub owner/repo (required)
  • sourceContext.branchName — Target branch (default: repo default)
  • automationMode — "AUTO_CREATE_PR" to auto-create PRs, omit for manual
  • title — Display name for the session
  • requirePlanApproval — true to pause for plan review before execution

List Sessions

curl -s -H "x-goog-api-key: $JULES_API_KEY" \
  "https://jules.googleapis.com/v1alpha/sessions?pageSize=10"

Get Session Status

curl -s -H "x-goog-api-key: $JULES_API_KEY" \
  "https://jules.googleapis.com/v1alpha/sessions/SESSION_ID"

Poll Until Complete (API)

SESSION_ID="<id>"
while true; do
  STATE=$(curl -s -H "x-goog-api-key: $JULES_API_KEY" \
    "https://jules.googleapis.com/v1alpha/sessions/$SESSION_ID" \
    | python3 -c "import sys,json; print(json.load(sys.stdin).get('state','UNKNOWN'))")
  case "$STATE" in
    COMPLETED)
      echo "Done!"
      break ;;
    FAILED)
      echo "Failed. Check: https://jules.google.com/session/$SESSION_ID"
      break ;;
    *)
      echo "State: $STATE - waiting 30s..."
      sleep 30 ;;
  esac
done

Smart Context Injection

Enrich prompts with current context for better results:

BRANCH=$(git branch --show-current)
RECENT_FILES=$(git diff --name-only HEAD~3 2>/dev/null | head -10 | tr '\n' ', ')
RECENT_COMMITS=$(git log --oneline -5 | tr '\n' '; ')
STAGED=$(git diff --cached --name-only | tr '\n' ', ')

Use when creating tasks (CLI):

jules new --repo owner/repo "Fix the bug in auth module. Context: branch=$BRANCH, recently modified: $RECENT_FILES"

Use when creating tasks (API):

curl -s -X POST "https://jules.googleapis.com/v1alpha/sessions" \
  -H "x-goog-api-key: $JULES_API_KEY" \
  -H "Content-Type: application/json" \
  -d "{
    \"prompt\": \"Fix the bug in auth module. Context: branch=$BRANCH, recently modified: $RECENT_FILES\",
    \"sourceContext\": {\"repository\": \"owner/repo\", \"branchName\": \"$BRANCH\"},
    \"automationMode\": \"AUTO_CREATE_PR\"
  }"

Template Prompts

Quick commands for common tasks:

Add Tests

FILES=$(git diff --name-only HEAD~3 2>/dev/null | grep -E '\.(js|ts|py|go|java)$' | head -5 | tr '\n' ', ')
jules new "Add unit tests for recently modified files: $FILES. Include edge cases and mocks where needed."

Add Documentation

FILES=$(git diff --name-only HEAD~3 2>/dev/null | grep -E '\.(js|ts|py|go|java)$' | head -5 | tr '\n' ', ')
jules new "Add documentation comments to: $FILES. Include function descriptions, parameters, return values, and examples."

Fix Lint Errors

jules new "Fix all linting errors in the codebase. Run the linter, identify issues, and fix them while maintaining code functionality."

Review PR

PR_NUM=123
PR_INFO=$(gh pr view $PR_NUM --json title,body,files --jq '"\(.title)\n\(.body)\nFiles: \(.files[].path)"')
jules new "Review this PR for bugs, security issues, and improvements: $PR_INFO"

Git Integration (Apply + Commit)

After Jules completes, apply changes to a new branch:

SESSION_ID="<id>"
TASK_DESC="<brief description>"

# Create branch, apply, commit
git checkout -b "jules/$SESSION_ID"
jules remote pull --session "$SESSION_ID" --apply
git add -A
git commit -m "feat: $TASK_DESC

Jules session: $SESSION_ID"

# Optional: push and create PR
git push -u origin "jules/$SESSION_ID"
gh pr create --title "$TASK_DESC" --body "Automated changes from Jules session $SESSION_ID"

Poll Until Complete (CLI)

Wait for session to finish:

SESSION_ID="<id>"
while true; do
  STATUS=$(jules remote list --session 2>/dev/null | grep "$SESSION_ID" | awk '{print $NF}')
  case "$STATUS" in
    Completed)
      echo "Done!"
      jules remote pull --session "$SESSION_ID"
      break ;;
    Failed)
      echo "Failed. Check: https://jules.google.com/session/$SESSION_ID"
      break ;;
    *User*)
      echo "Needs input: https://jules.google.com/session/$SESSION_ID"
      break ;;
    *)
      echo "Status: $STATUS - waiting 30s..."
      sleep 30 ;;
  esac
done

AGENTS.md Template

Create in repo root to improve Jules results:

# AGENTS.md

## Project Overview
[Brief description]

## Tech Stack
- Language: [TypeScript/Python/Go/etc.]
- Framework: [React/FastAPI/Gin/etc.]
- Testing: [Jest/pytest/go test/etc.]

## Code Conventions
- [Linter/formatter used]
- [Naming conventions]
- [File organization]

## Testing Requirements
- Unit tests for new features
- Integration tests for APIs
- Coverage target: [X]%

## Build & Deploy
- Build: `[command]`
- Test: `[command]`

Session States

StatusAction
Planning / In ProgressWait
Awaiting User FRespond at web UI
CompletedPull results
FailedCheck web UI

Notes

  • No CLI reply → Use web UI for Jules questions
  • No CLI cancel → Use web UI to cancel
  • GitHub only → GitLab/Bitbucket not supported
  • AGENTS.md → Jules reads from repo root for context
  • API vs CLI → Use API (JULES_API_KEY) for headless/agent automation; use CLI for interactive sessions

FAQ

What does the jules skill do?

Delegate coding tasks to Google Jules AI agent for asynchronous execution. Use when user says: 'have Jules fix', 'delegate to Jules', 'send to Jules', 'ask Jules to', 'check Jules sessions', 'pull Jules results', 'jules add tests', 'jules add docs', 'jules review pr'. Handles: bug fixes, documentation, features, tests, refactoring, code reviews. Works with GitHub repos, creates PRs.

How do I install jules?

Run npx skills add https://github.com/sanjay3290/ai-skills --skill jules in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/jules/ (personal) or .claude/skills/jules/ (project).

Which AI agents can use jules?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is jules safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains jules?

It is published by sanjay3290 in sanjay3290/ai-skills. It has 400 recorded installs.

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