Claude Code --print Flag Explained: Build Restart-Safe AI Automation Pipelines (Lesson 3.1)

Lesson Link : https://systemdrd.com/lessons/day-11-print-automation-2/
Full course: https://systemdrd.com/courses/hands-on-to-ai-claude-code-claude-skills/
Visit our website : https://systemdrd.com/

Most developers try to automate Claude Code the wrong way — and they never
figure out why it breaks. In this lesson, you'll learn exactly how the
Claude Code --print flag works, why interactive mode is architecturally
incompatible with scripting, and how to build a production-grade, restart-safe
batch automation pipeline from scratch.

We cover:
→ Why claude interactive mode corrupts piped output (ANSI escape sequences)
→ The --print flag (single-shot mode) as a proper UNIX filter
→ --output-format json vs stream-json — when to use each
→ Parsing the JSON envelope: result, num_turns, duration_ms, cost_usd
→ --max-turns 1, --allowedTools, and heredoc prompts for CI-safe execution
→ Building a state file (processed.log) for restart-safe batch processing
→ Exit code contract: 0 (success) · 1 (retry/backoff) · 2 (abort)
→ ANTHROPIC_API_KEY override — the silent billing trap every team hits
→ CLAUDE.md as a persistent project-level instruction layer
→ Live implementation of single_shot.sh with real Python files

This is Lesson 3.1 of the ClaudeForge course: "Hands-On Claude Code &
Claude Skills: From Zero to Production-Ready AI Workflows." Every agentic
workflow in Module 3 — piping stdin, batch loops, self-healing pipelines,
GitHub Actions PR review — builds on the --print primitive you learn here.

If this lesson helped you, subscribe for the rest of Module 3 — we cover
stdin piping, batch type-hint automation, and GitHub Actions PR review next.

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Видео Claude Code --print Flag Explained: Build Restart-Safe AI Automation Pipelines (Lesson 3.1) канала SystemDR - Scalable System Design