{"slug": "claude-code-merged-support-for-osc-7501", "title": "Claude Code merged support for OSC 7501", "summary": "Anthropic's Claude Code v2.1.295 added support for OSC 7501 (program status), a terminal escape sequence that reports an application's status, according to a post by Mitchell Hashimoto on X. Hashimoto said the protocol support \"will help hundreds or thousands of downstream applications\" and that Anthropic verified it works through Rex, a tool he referenced. A commenter offered to commit to adding OSC 7501 support to their own harness within 4 hours of receiving Rex beta access.", "body_md": "Mitchell Hashimoto on X: \"Claude Code v2.1.295 supports OSC 7501 (program status). Incredible speed @AnthropicAI supporting this protocol which will help hundreds or thousands of downstream applications! They had access to Rex and verified through Rex it works. 🥰\"\n\nClaude Code v2.1.295 supports OSC 7501 (program status). Incredible speed @AnthropicAI supporting this protocol which will help hundreds or thousands of downstream applications! They had access to Rex and verified through Rex it works. 🥰\n\nClaude Code v2.1.295 supports OSC 7501 (program status). Incredible speed @AnthropicAI supporting this protocol which will help hundreds or thousands of downstream applications! They had access to Rex and verified through Rex it works. 🥰\n\nYeah this is great can I get access to Rex to make sure OpenCode works through it, don't worry about contacting any of my coworkers you can just contact me\n\nI will commit to turning around OSC 7501 support in my harness within 4 hours of getting access to the Rex beta.\n(My harness has 1 user but we're growing fast.)", "url": "https://wpnews.pro/news/claude-code-merged-support-for-osc-7501", "canonical_source": "https://twitter.com/mitchellh/status/2108296550405619967", "published_at": "2026-10-08 21:25:31+00:00", "updated_at": "2026-10-08 21:47:30.381305+00:00", "lang": "en", "topics": ["developer-tools", "ai-tools"], "entities": ["Anthropic", "Claude Code", "Mitchell Hashimoto", "OSC 7501", "Rex", "OpenCode"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/claude-code-merged-support-for-osc-7501", "markdown": "https://wpnews.pro/news/claude-code-merged-support-for-osc-7501.md", "text": "https://wpnews.pro/news/claude-code-merged-support-for-osc-7501.txt", "jsonld": "https://wpnews.pro/news/claude-code-merged-support-for-osc-7501.jsonld"}}