Codex System Prompt
OpenAI has released Codex CLI, an open-source terminal-based coding assistant. The system prompt defines the agent's capabilities, personality, and workflow, including handling AGENTS.md files for rep…
OpenAI has released Codex CLI, an open-source terminal-based coding assistant. The system prompt defines the agent's capabilities, personality, and workflow, including handling AGENTS.md files for rep…
OpenAI's GPT-5.6, accessed May 27, initially impressed reviewer Matt Shumer with its goal mode, which autonomously iterates until completion criteria are met, enabling projects like a 3D voxel Manhatt…
Lilian Weng published a survey on harness engineering for self-improving agents, documenting how agents that optimize their own scaffolding face provenance and trust issues. The Darwin Gödel Machine p…
OpenAI's technical post on Codex CLI and Philip Zeyliger's work at Sketch.dev demonstrate that AI agents using iterative loops outperform single-shot prompts for complex tasks. The agent loop, where t…
Apify released CLI version 1.7.0 with improvements for AI coding agents, including clearer guidance for `apify call`, explicit final-status summaries for builds and runs, a new `apify mcp install` com…
A developer created a Claude Code skill for the Mac screenshot app SlimSnap that dynamically reads the user's screenshot folder from a config file, avoiding hardcoded paths. The skill reads ~/.slimsna…
Theo Browne published a guide for running GPT-5.5 as a subagent within Claude Code workflows, ranking models by cost, intelligence, and taste. The approach uses GPT-5.5 for bulk mechanical work via th…
Developer Aakash Desai released CTOP, a terminal pane for monitoring AI coding agents including Claude Code, Codex CLI, OpenCode, and Devin, providing real-time CPU, memory, token usage, context windo…
Christopher Karani released Orca, an open-source safety layer that intercepts and enforces policies on autonomous AI agents before they execute destructive commands like file deletion or secret leaks.…
A developer released Earshot, an open-source Slack bot that uses Anthropic's Claude to autonomously scope, delegate, and track tasks from Slack threads, with state-machine durability and safety guards…
Backboard R-CLI, a small open-source terminal agent, achieved the #1 published score on Terminal-Bench 2.1 with 84.3% accuracy (75/89 tasks), beating larger competitors like Codex CLI and Claude Code.…
Fable has implemented a model routing system in its CLAUDE.md file that prioritizes intelligence and taste over cost. The system delegates bulk mechanical work to gpt-5.5 via Codex CLI, while user-fac…
A software bug in OpenAI's Codex CLI tool caused 37 terabytes of excessive write operations in 21 days, severely degrading high-performance SSDs and shortening their lifespan. Japanese media framed th…
Warp CEO Zach Lloyd announced at the AI Engineer World's Fair that the company is pivoting to a software factory platform called Oz, which automates the entire software development loop from triage to…
A developer built chatgpt2codex, a CLI tool that imports shared ChatGPT conversations into local Codex CLI sessions. The tool preserves context from ChatGPT discussions, allowing developers to resume …
PromptOT launched a prompt management platform that replaces monolithic system prompts with typed, independently versioned blocks. The platform, born from a costly production bug caused by a hardcoded…
NVIDIA released the BioNeMo Agent Toolkit, an open-source repository that packages its biomolecular models as callable skills for AI agents in drug discovery. The toolkit improved task completion from…
Developer John Pellew launched Katra, an open-source self-hosted memory appliance for AI agents that provides episodic recall, semantic search, knowledge graphs, and temporal analysis via the Model Co…
Developer Simon Willison built agent-historian, a tool that lets AI coding agents query their own session history, after repeatedly encountering agents that forget solutions from previous sessions. Th…
An open-source MCP server called codebase-memory-mcp, built by DeusData, cuts the token cost of structural code queries by up to 121x by using a persistent knowledge graph. The tool, trending #1 on Gi…