codex

Codex Bridge

Invoke OpenAI Codex CLI for cross-model collaboration.

Current Configuration

!"${CLAUDE_PLUGIN_ROOT}/scripts/codex" --info 2>&1 || echo "(codex CLI not found -- install with: npm install -g @openai/codex)"

Execution

Use the configuration above to determine the current default model and available overrides. Do NOT guess model names.

# Run with prompt
"${CLAUDE_PLUGIN_ROOT}/scripts/codex" exec "$ARGUMENTS"

# Or with overrides (use values from Current Configuration above)
CODEX_MODEL=<model> CODEX_REASONING=<level> "${CLAUDE_PLUGIN_ROOT}/scripts/codex" exec "$ARGUMENTS"

# Resume a previous conversation
"${CLAUDE_PLUGIN_ROOT}/scripts/codex" exec resume <SESSION_ID> "Follow up prompt..."

Resuming Conversations

Codex returns a session ID after each run. To continue that conversation:

"${CLAUDE_PLUGIN_ROOT}/scripts/codex" exec resume <SESSION_ID> "Follow up prompt..."

When to resume:

• Follow-up questions about previous work
• Iterating on generated code
• Asking for clarifications or modifications
• Building on prior context

Important: Capture the session ID from the previous run's output to enable resumption.

Configuration (env vars)

Variable	Description
CODEX_MODEL	Model override
CODEX_REASONING	Reasoning effort: low, medium, high, xhigh
CODEX_SANDBOX	Sandbox mode: read-only, workspace-write, danger-full-access (exec only)

When to Use

• Code review: Second opinion from GPT
• Debugging: Different perspective on errors
• Architecture: Cross-validate design decisions