Cursor (@cursor_ai)Startups · Oct 26, 2026
3.9K likes · 279 reposts · 417 replies · 400K views (as reported on Oct 29, 2026)
Cursor & IDE agents
Community · 157 posts · 285 accounts
What the people building agent harnesses are saying on X, filed under 16 topics. Profiles are in People.
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157 of 157 posts
Cursor (@cursor_ai)Startups · Oct 26, 2026
3.9K likes · 279 reposts · 417 replies · 400K views (as reported on Oct 29, 2026)
Cursor & IDE agents
OpenAI (@OpenAI)Labs · Oct 26, 2026
27.9K likes · 2.5K reposts · 1.7K replies · 6.5M views (as reported on Oct 29, 2026)
Launches & announcements
Codex Releases (@CodexReleases)Startups · Oct 26, 2026
268 likes · 21 reposts · 19 replies · 40.4K views (as reported on Oct 29, 2026)
Launches & announcements
Teknium 🪽 (@Teknium)Open source · Oct 26, 2026
4 likes · 0 reposts · 6 replies · 772 views (as reported on Oct 29, 2026)
OpenClaw, Hermes & personal agents
dax (@thdxr)Open source · Oct 25, 2026
597 likes · 8 reposts · 70 replies · 42.3K views (as reported on Oct 29, 2026)
Open harnesses
Kimi Developers (@KimiDevs)Open source · Oct 25, 2026
940 likes · 26 reposts · 91 replies · 74.1K views (as reported on Oct 29, 2026)
Multi-agent orchestration · Open harnesses
Arindam Majumder 𝕏 (@Arindam_1729)Independent · Oct 24, 2026
597 likes · 82 reposts · 57 replies · 31.2K views (as reported on Oct 29, 2026)
Harness engineering
LangChain (@LangChain)Open source · Oct 23, 2026
62 likes · 5 reposts · 5 replies · 11.2K views (as reported on Oct 29, 2026)
Context engineering & memory
Gaurav Sen (@gkcs_)Independent · Oct 23, 2026
906 likes · 95 reposts · 10 replies · 43.6K views (as reported on Oct 29, 2026)
Harness engineering
Boris Cherny (@bcherny)Labs · Oct 22, 2026
2.6K likes · 100 reposts · 270 replies · 291K views (as reported on Oct 29, 2026)
Skills, plugins & mods
Dmitry Lyalin (@LyalinDotCom)Independent · Oct 22, 2026
1.9K likes · 151 reposts · 147 replies · 266K views (as reported on Oct 29, 2026)
Open harnesses
Claude Code Changelog (@ClaudeCodeLog)Labs · Oct 21, 2026
303 likes · 16 reposts · 25 replies · 28.8K views (as reported on Oct 29, 2026)
Launches & announcements
OpenAI Developers (@OpenAIDevs)Labs · Oct 19, 2026
1.4K likes · 77 reposts · 306 replies · 2.0M views (as reported on Oct 29, 2026)
Codex & OpenAI agents
Teknium 🪽 (@Teknium)Open source · Oct 19, 2026
1.9K likes · 58 reposts · 187 replies · 82.5K views (as reported on Oct 29, 2026)
OpenClaw, Hermes & personal agents
Theo - t3.gg (@theo)Startups · Oct 19, 2026
2.5K likes · 27 reposts · 366 replies · 119K views (as reported on Oct 29, 2026)
Claude Code · Codex & OpenAI agents
OpenAI Developers (@OpenAIDevs)Labs · Oct 16, 2026
1.9K likes · 100 reposts · 108 replies · 216K views (as reported on Oct 29, 2026)
Codex & OpenAI agents
Boris Cherny (@bcherny)Labs · Oct 16, 2026
5.0K likes · 179 reposts · 355 replies · 464K views (as reported on Oct 29, 2026)
Claude Code
Factory (@FactoryAI)Startups · Oct 16, 2026
161 likes · 13 reposts · 14 replies · 19.8K views (as reported on Oct 29, 2026)
Open harnesses
Nous Research (@NousResearch)Open source · Oct 16, 2026
1.4K likes · 102 reposts · 81 replies · 84.6K views (as reported on Oct 29, 2026)
Launches & announcements
OpenAI Developers (@OpenAIDevs)Labs · Oct 15, 2026
1.3K likes · 92 reposts · 92 replies · 129K views (as reported on Oct 29, 2026)
Codex & OpenAI agents
raw = log10(1 + followers) + log2(1 + posts) + log10(1 + engagement); score = 100 × raw ÷ the highest raw. Posts are verified posts in this feed; engagement is their likes, reposts, replies and quotes as reported when the post was found. The logs keep the biggest accounts from drowning out people who post about harnesses often: ten times the followers adds one point, and so does each doubling of posts. Topic lists use only that topic's posts. People and official accounts are ranked separately.
Every post is checked against X's public embed endpoint. We leave out 30 accounts that mostly repost news, use engagement-bait formats or share no original harness work. Accounts are listed for their public work; listing is not an endorsement. Request a correction or removal.