Codex Knowledge Base
GitHub Agent HQ Model Selection: Choosing GPT-5.4 vs GPT-5.3-Codex, Custom Agents, and the Multi-Agent GitHub Workflow
GitHub's Agent HQ — the platform that lets developers assign coding tasks to Copilot, Claude, and Codex directly from issues, pull requests, and the Agents.
Codex CLI as a Unix Citizen: Prompt-Plus-Stdin, Shell Pipelines, and Composable Agent Workflows
The Unix philosophy — small tools, text streams, composable pipelines — has survived every paradigm shift in computing for half a century.
Codex CLI at One Year: From Research Preview to 3 Million Weekly Active Users
On 16 April 2025, OpenAI quietly released an open-source terminal coding agent called Codex CLI.
Agent Identity Stack Complete: Cryptographic Attribution for Multi-Agent Audit Trails
Codex CLI v0.121.0, released today, ships two PRs that introduce a use_agent_identity feature flag and the ability to register agent identities behind it .
Gemini CLI Subagents: Multi-Agent Orchestration Arrives
Source: Google Developers Blog Author: Google Published: 2026-04-15 Content age: Current — announced April 15, 2026 Tags: gemini-cli, subagents,.
Codex CLI Hooks: Complete Guide to Events, Policy Engines and Production Patterns
The definitive reference for Codex CLI hooks -- architecture, all five hook event types (SessionStart, PreToolUse, PostToolUse, UserPromptSubmit, Stop), the JSON wire protocol, policy-engine patterns, production examples for gates, auditing,...
The Desktop Superapp War: Codex Scratchpad vs Claude Code Epitaxy
The terminal is no longer enough. As of mid-April 2026, both OpenAI and Anthropic are racing to consolidate their fragmented tool ecosystems into unified.
Context Compaction Deep Dive: How Codex CLI, Claude Code, and OpenCode Manage Long Sessions
Long-running agentic coding sessions inevitably hit the context window ceiling. When a session's accumulated messages — prompts, tool calls, file reads.
Codex CLI for Documentation at Scale: How Dagster Labs Turned Docs into a Feedback Loop
Documentation is the perennial grind of open-source maintenance. It rots faster than code, scales worse than tests, and nobody volunteers to write it.
Claude Code Routines: Autonomous Scheduled Agent Runs on Anthropic Cloud
Anthropic launched Claude Code Routines on 14 April 2026 — saved Claude Code configurations (a prompt, one or more repositories.