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codex-cli

@GantisStorm/claude-code-pair-planning-framework
3
0

Reference for Codex CLI usage patterns. Consult before calling codex via Bash.

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SKILL.md

name codex-cli
description Reference for Codex CLI usage patterns. Consult before calling codex via Bash.

Codex CLI Reference

Quick reference for Codex CLI commands.

Basic Command

codex exec "[prompt]" -m gpt-5.2 --reasoning-effort high --sandbox read-only --ask-for-approval never 2>&1

Common Flags

Flag Purpose
exec Non-interactive execution mode
-m gpt-5.2 Model selection
--reasoning-effort high Reasoning effort (minimal, low, medium, high, xhigh)
--sandbox read-only Prevent file modifications
--sandbox workspace-write Allow writes within workspace
--ask-for-approval never Non-interactive mode
--search Enable web search
-C DIR Set working directory

Session Continuation

# Resume a previous session
codex resume [session-id] "[prompt]" --sandbox read-only --ask-for-approval never 2>&1

Note: Session IDs are returned in Codex output.

Bash Execution Notes

  • Use dangerouslyDisableSandbox: true for Bash calls
  • Always append 2>&1 to capture all output
  • Use timeout of 300000ms (5 min) or longer for complex tasks

Safety Requirements

NEVER use these flags:

  • --dangerously-bypass-approvals-and-sandbox - FORBIDDEN
  • --sandbox danger-full-access - FORBIDDEN

Troubleshooting

Timeout: Complex analysis may take 5-10 minutes. Use longer timeout values.

Authentication: Codex CLI must be authenticated via codex login.

Flag errors: Run codex --help to verify correct flag usage.

More Information