Explains how the Jac compiler infers client, server, and native code placement.
npx skills add https://github.com/PMN123/trapdoor --skill jac-codespaces-pmn123
Please help me install this Agent Skill. Skill: jac-codespaces Source: https://github.com/PMN123/trapdoor/tree/main/.agents/skills/jac-codespaces Command: npx skills add https://github.com/PMN123/trapdoor --skill jac-codespaces-pmn123
def:pub endpoints, walkers, and node/edge archetypes never relocate; shared objects referenced from both sides become auto-shared wire types. - Explicit overrides: Use cl/sv/na block, statement, or file-extension markers to pin placement, such as keeping secrets server-side with sv glob. - Use Case: A client component throws JobProgress is not defined at mount because it constructs a shared archetype client-side — this Skill explains why and shows the T | None = None fix. ## Quick Start Ask the AI to explain why a Jac declaration landed in the wrong bundle or how to pin a helper server-side with sv.High-intent search queries and answers about installing and using this skill.
Jac infers placement structurally: JSX and string-path npm imports mark code as client, extern C declarations seed native, and everything else defaults to server. References propagate placement to helpers within a module, but never across module boundaries.
Pin the declaration with the `sv` marker, for example `sv glob API_KEY` or `sv def summarize(...)`. Client calls to sv-pinned functions compile to RPC bridge calls instead of shipping the code in the JS bundle.
E5082 means a client module imported a helper from a plain server-default module, and inference does not cross module boundaries. Pin the target module with the `.cl.jac` extension so it gains client-side presence.
No. Shared archetypes referenced from client code get a wire-codec class for receiving and reading, but constructing one client-side throws at mount. Hold them as `T | None = None` and let the server construct instances.
Markers are optional overrides, not requirements — markerless code compiles byte-identical to marker-annotated equivalents. Use them when you want the boundary visible in source or need to override inference, such as pinning secrets server-side.
nihalnihalaniExplains how the Jac compiler infers client, server, and native code placement.
nihalnihalaniWire main.jac entry modules, endpoints, and client-server imports for fullstack Jac applications.
nihalnihalaniSplits Jac backends into microservices using sv import compile-time HTTP clients.
cas-bigdatalabAdd 10 to an integer input via command-line integration.