Codex CLI: Multi-Agent CSV Fan-Out & Sub-Agent Workflow Improvements
CodexCodex CLI 0.105.0 significantly improves multi-agent workflows, introducing spawn_agents_on_csv to fan out parallel tasks from a CSV file with built-in progress tracking and ETA estimation. Sub-agents are now easier to manage and monitor with assignable nicknames, a redesigned picker interface, and visible child-thread approval prompts.
Sources & Mentions
3 external resources covering this update
Multi-Agent Workflows Get Batch Processing and Better Visibility
Codex CLI 0.105.0 advances the platform's multi-agent capabilities with tooling designed for teams running large parallel workloads from the terminal.
CSV-Based Agent Fan-Out with spawn_agents_on_csv
The new spawn_agents_on_csv capability allows a session to read a CSV file and spawn a separate agent for each row, distributing work automatically across the defined inputs. Each spawned agent runs concurrently, and the TUI displays a real-time progress indicator with ETA estimates.
Sub-Agent Nicknames and Improved Navigation
Sub-agents can now be assigned custom nicknames, making it significantly easier to track which agent is handling which task in sessions with many parallel threads. The sub-agent picker interface was redesigned for clarity, and child-thread approval prompts are now visible within the parent session.
App-Server Thread Management
The app-server received several enhancements:
thread/listnow accepts a title search parameter.- Thread status is exposed in
read,list, and notification responses. thread/resumereturns the latest turn inline, reducing data lost during reconnection.
Approval Controls
Flexible approval handling received additional granularity: Codex can now request extra sandbox permissions for specific commands on an ad-hoc basis, and users can configure auto-rejection for particular approval prompt types.