Show HN: Anima, interactive biology models from plain English (open source)

Anima is an open-source Claude Code skill that generates interactive, isometric biology figures from plain English prompts. Each figure shows real cellular or anatomical structure, an explicit mechanism you can toggle or animate, interactive controls (sliders, hoverable elements), and an on-screen citation for every numeric value including species, experimental conditions, and units. Numbers that lack verifiable sources are omitted. Drug depictions are strictly mechanistic and educational - no dosing, routes, or clinical advice. The interface emphasizes clarity about certainty, keeping established biology, one leading models, rodent work, and human evidence distinct.

Live examples include D1 versus D2 dopamine receptor signaling with full G‑protein cycles and a dopamine slider; cocaine and amphetamine actions at the dopamine transporter; a sagittal mesolimbic reward pathway model; semaglutide acting on pancreatic beta cells; aromatase conversion of testosterone to estradiol; saltatory conduction in a myelinated neuron; and a sunflower seedling bending model from BendLab. The project is MIT‑licensed, available on GitHub, and installable via a single npx command for Claude Code. The maintainers encourage starring the repo to increase discoverability and shareability.