/**
 * context-usage — a Pi extension that analyzes current context usage,
 * similar to Claude Code's context meter.
 *
 * Commands:
 *  - `/context`          overview (tokens / window / percent / compaction
 *                        threshold) + breakdown by section: system prompt,
 *                        messages by role, tools by source
 *  - `/context skills`   scrollable list of loaded skills, sorted by
 *                        estimated prompt footprint
 *  - `/context tools`    scrollable list of registered tools with their
 *                        source, sorted by estimated definition size
 *  - `/context files`    list of loaded context files (AGENTS.md etc.)
 *
 * Structure: this file is a thin registration stub. The implementation lives
 * in `src/`:
 *  - `src/command.ts`    subcommand routing + output-sink selection
 *  - `src/breakdown/`    per-section data collectors (system prompt, messages,
 *                        tools) — pure functions, unit-tested in `test/`
 *  - `src/report.ts`     renders the overview report as plain text
 *  - `src/ui/`           TUI panels (static panel, scrollable list)
 *  - `src/estimate.ts`   token estimation — the seam for a future real
 *                        tokenizer (currently chars/4, see `src/format.ts` for
 *                        rendering helpers and `src/types.ts` for the data model)
 */
import type { ExtensionAPI } from "@earendil-works/pi-coding-agent";
import { contextCommand } from "./src/command";

export default function (pi: ExtensionAPI) {
	pi.registerCommand("context", {
		description: "Show context usage: overview + breakdown, or lists (skills/tools/files)",
		handler: contextCommand(pi),
	});
}