Build typed, React-like HTML components in Python with Ludic — uses PEP 750 t-strings (Python 3.14+) and pairs with htmx. Use this skill whenever the user is writing or modifying Ludic component code: subclassing Component or ComponentStrict, declaring Attrs TypedDicts, composing HTML elements from ludic.html (div, a, html, head, body, table, form, ...), mixing markup with interpolation via t"...", reaching for catalog widgets (Table, PageLayout, Form, Button, Navigation), wiring htmx attributes (hx_get, hx_post, hx_target, hx_swap) on elements, defining Themes or CSS styles on components, or anything involving the trusted-vs-untrusted (Safe) content boundary. Also trigger on questions about why mypy is flagging a component's children/attrs. Prefer this skill even when the user does not explicitly say "Ludic" — the import `from ludic ...` or any usage of t-strings to build HTML is a strong signal. For building endpoints, request handling, FastAPI/Django integration, or URL generation, use the companion `ludic
Build web apps with Ludic's web integration — Starlette-based LudicApp, typed Endpoint classes, and the FastAPI / Django integrations. Use this skill whenever the user is wiring Ludic components into HTTP handlers: routing requests with LudicApp, declaring async endpoints that return components, subclassing ludic.web.endpoints.Endpoint, parsing form data or query params, returning htmx partials, handling redirects, mounting Ludic inside an existing FastAPI or Django app, or generating URLs from a request (request.url_for / request.url_path_for). Always trigger this skill on any code that generates absolute URLs from request data — there is a host header poisoning class of vulnerability that affects every Ludic web app and needs explicit guarding. Also trigger on questions about LudicRequest, LudicResponse, the Starlette/FastAPI/Django bridge, or htmx response patterns (HX-Trigger, HX-Redirect, HX-Push-Url headers). For pure component authoring without an HTTP layer, use the companion `ludic-components` skill.