{"slug": "show-hn-posecode-a-text-language-and-renderer-for-human-movement", "title": "Show HN: Posecode, a text language and renderer for human movement", "summary": "Posecode, a text language and renderer for human movement, has been released on Show HN. The language uses commands like ground-lock, reach, pin, grip, and cue to animate movements such as deadlifts or stretches, with an LLM prompt available to generate valid .posecode documents.", "body_md": "-\n1\n**Copy the prompt.** Click *Copy LLM prompt* (top right). It teaches\na capable model how to write the Posecode language.\n\n-\n2\n**Ask an LLM for a movement.** Paste the prompt, then ask for what you want:\n*“write a deadlift”*, *“a hamstring stretch”*, *“cat-cow”*.\nFor a representable request, it should reply with only the raw\n`.posecode`\n\ndocument.\n\n-\n3\n**Paste it here.** Drop the raw `.posecode`\n\ntext into the editor on\nthe left. Valid documents animate; parse errors, range clamps, and unresolved\nreach targets appear below the editor.\n\n### Authoring reference\n\nThe [language specification](/spec.html) is the normative\nPosecode contract. The [LLM guide](/llm-guide.html) is a\nself-contained authoring aid built from that contract.\n\n`ground-lock`\n\npreserves an existing floor support;\n`reach`\n\nmoves a limb; `pin`\n\nmoves the whole body\naround one anchor; and `grip`\n\nsolves hands onto a bar or\nrails. A `cue`\n\nis display-only coaching text and never\nchanges the animation.\n\nThe prompt you’ll paste into the LLM", "url": "https://wpnews.pro/news/show-hn-posecode-a-text-language-and-renderer-for-human-movement", "canonical_source": "https://www.posecode.org/play", "published_at": "2026-07-21 19:29:11+00:00", "updated_at": "2026-07-21 19:43:29.744984+00:00", "lang": "en", "topics": ["developer-tools"], "entities": ["Posecode"], "alternates": {"html": "https://wpnews.pro/news/show-hn-posecode-a-text-language-and-renderer-for-human-movement", "markdown": "https://wpnews.pro/news/show-hn-posecode-a-text-language-and-renderer-for-human-movement.md", "text": "https://wpnews.pro/news/show-hn-posecode-a-text-language-and-renderer-for-human-movement.txt", "jsonld": "https://wpnews.pro/news/show-hn-posecode-a-text-language-and-renderer-for-human-movement.jsonld"}}