Use whenever working in a project that has a `.linear_canal_data/` folder — this signals Linear Canal has indexed the codebase. Invoke before any Glob, Grep, or raw file reads. Covers: "how does X work", "where is Y defined", "what files handle Z", explaining architecture, fixing bugs, adding features, or any file edit. The ctx files contain pre-compiled insights — reading them first saves 80-95% of tokens vs raw source exploration. If you see `.linear_canal_data/` in the project root, use this skill first.
Use at the start of every session or task in any project — checks whether Linear Canal has indexed this codebase and activates the right workflow. MANDATORY: invoke before any Glob, Grep, Read, or file exploration. Trigger on: session start, first user message, any question about the project, any coding task, any file edit request.
Use at the start of every session or task in a project that has a `.linear_canal_data/` folder. This is a mandatory orientation check — invoke it before any file read, Glob, Grep, or codebase action. The folder signals that Linear Canal has pre-compiled the entire codebase into ctx files, which means raw exploration is unnecessary and expensive. Trigger on: session start, first user message, any question about the project, any task involving code.