Codex: rust-v0.86.0 Release

New Features

• Skill metadata can now be defined in SKILL.toml (names, descriptions, icons, brand color, default prompt) and surfaced in the app server and TUI (#9125)
• Clients can explicitly disable web search and signal eligibility via a header to align with server-side rollout controls (#9249)

Bug Fixes

• Accepting an MCP elicitation now sends an empty JSON payload instead of null to satisfy servers expecting content (#9196)
• Input prompt placeholder styling is back to non-italic to avoid terminal rendering issues (#9307)
• Empty paste events no longer trigger clipboard image reads (#9318)
• Unified exec cleans up background processes to prevent late End events after listeners stop (#9304)

Chores

• Refresh the orchestrator prompt to improve internal routing behavior (#9301)
• Reduce noisy needs_follow_up error logging (#9272)

Changelog

Full Changelog: https://github.com/openai/codex/compare/rust-v0.85.0...rust-v0.86.0

• #9301 chore: better orchestrator prompt @jif-oai
• #9304 nit: clean unified exec background processes @jif-oai
• #9307 Revert recent styling change for input prompt placeholder text @etraut-openai
• #9125 Support SKILL.toml file. @xl-openai
• #9249 [search] allow explicitly disabling web search @sayan-oai
• #9272 remove needs_follow_up error log @pap-openai
• #9318 Revert empty paste image handling @aibrahim-oai
• #9196 fix: send non-null content on elicitation Accept @yuvrajangadsingh