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claude-code-headless

Run Claude Code programmatically without interactive UI. Triggers on: headless, CLI automation, --print, output-format, stream-json, CI/CD, scripting.

The English summary is being prepared. Showing the original description.

aiskillstore/marketplace

See how to install

Files included (5)

SKILL.md3.2 KB
references/cli-options.md4.2 KB
references/integration-patterns.md8.3 KB
references/output-formats.md4.6 KB
skill-report.json102.5 KB

SKILL.md (original)

Review the instructions the agent will receive before you install.

Claude Code Headless Mode

Run Claude Code from scripts without interactive UI.

Quick Start

# Basic headless execution
claude -p "Explain this code" --allowedTools "Read,Grep"

# JSON output for parsing
claude -p "List files" --output-format json

# Continue conversation
claude -p "Start analysis" --output-format json > result.json
session=$(jq -r '.session_id' result.json)
claude --resume "$session" "Now fix the issues"

Essential CLI Options

Flag	Description
`-p`, `--print`	Non-interactive (headless) mode
`--output-format`	text, json, stream-json
`-r`, `--resume`	Resume by session ID
`-c`, `--continue`	Continue most recent session
`--allowedTools`	Comma-separated allowed tools
`--disallowedTools`	Comma-separated denied tools
`--mcp-config`	Path to MCP server config JSON
`--verbose`	Enable verbose logging
`--append-system-prompt`	Add to system prompt

Permission Modes

Mode	Flag	Effect
Default	(none)	Prompt for permissions
Accept edits	`--permission-mode acceptEdits`	Auto-accept file changes
Bypass	`--permission-mode bypassPermissions`	Skip all prompts

Output Formats

Text (default)

claude -p "Hello"
# Outputs: Human-readable response

JSON

claude -p "Hello" --output-format json

{
  "type": "result",
  "subtype": "success",
  "result": "Hello! How can I help?",
  "session_id": "abc123",
  "total_cost_usd": 0.001,
  "duration_ms": 1234,
  "num_turns": 1
}

Stream-JSON

claude -p "Hello" --output-format stream-json
# Real-time JSONL output for each message

Common Patterns

Script with tool restrictions

claude -p "Analyze the codebase" \
  --allowedTools "Read,Grep,Glob" \
  --disallowedTools "Write,Edit,Bash"

CI/CD integration

claude -p "Review this PR diff" \
  --permission-mode acceptEdits \
  --output-format json \
  --append-system-prompt "Focus on security issues"

Multi-turn automation

session=$(claude -p "Start task" --output-format json | jq -r '.session_id')
claude --resume "$session" "Continue with step 2"
claude --resume "$session" "Finalize and report"

Error Handling

result=$(claude -p "Task" --output-format json)
if [[ $(echo "$result" | jq -r '.is_error') == "true" ]]; then
    echo "Error: $(echo "$result" | jq -r '.result')" >&2
    exit 1
fi

Official Documentation

https://code.claude.com/docs/en/headless - Headless mode reference
https://code.claude.com/docs/en/settings - Settings and permissions

Additional Resources

./references/cli-options.md - Complete CLI flag reference
./references/output-formats.md - Output format schemas
./references/integration-patterns.md - CI/CD and scripting examples

See Also: claude-code-hooks for automation events, claude-code-debug for troubleshooting

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Install

Install with a command

npx skills add https://github.com/aiskillstore/marketplace --skill claude-code-headless

Paste it into your terminal and run it (requires Node.js). You can choose which agents to install it for, such as Claude Code or Codex.

Ask your agent

Please install the following Agent Skill.
https://github.com/aiskillstore/marketplace/tree/main/skills/0xdarkmatter/claude-code-headless

First review SKILL.md and the bundled files and confirm there is nothing suspicious (such as sending data externally or reading credentials). Then place it in ~/.claude/skills/claude-code-headless/ for Claude Code, or ~/.agents/skills/claude-code-headless/ for Codex.

Send this text to Claude Code or Codex as is. It checks the contents before installing.

View source on GitHub

Repository: aiskillstore/marketplace
Stars: 439
Forks: 47
Category: Development
Original language: English
Last updated: Oct 19, 2026

A skill is a set of instructions and scripts for an agent. cccskills does not guarantee that skills are safe. Review the contents before you install.