import type { DevToolsAction, DevToolsResolvedToolMap } from "./types.js";
const CANDIDATES: Record<DevToolsAction, string[]> = {
navigate: ["navigate_page", "browser_navigate"],
snapshot: ["take_snapshot", "browser_snapshot"],
listNetwork: ["list_network_requests", "browser_network_requests"],
listConsole: ["list_console_messages", "browser_console_messages"],
screenshot: ["take_screenshot", "browser_take_screenshot"],
};
function pickCandidate(candidates: string[], available: Set<string>): string | null {
for (const candidate of candidates) {
if (available.has(candidate)) return candidate;
}
return null;
}
export function resolveToolMap(availableTools: string[]): DevToolsResolvedToolMap {
const available = new Set(availableTools);
const resolved = {
navigate: pickCandidate(CANDIDATES.navigate, available),
snapshot: pickCandidate(CANDIDATES.snapshot, available),
listNetwork: pickCandidate(CANDIDATES.listNetwork, available),
listConsole: pickCandidate(CANDIDATES.listConsole, available),
screenshot: pickCandidate(CANDIDATES.screenshot, available),
};
const missing: string[] = [];
if (!resolved.navigate) missing.push("navigate");
if (!resolved.snapshot) missing.push("snapshot");
if (!resolved.listNetwork) missing.push("listNetwork");
if (!resolved.listConsole) missing.push("listConsole");
if (!resolved.screenshot) missing.push("screenshot");
if (missing.length > 0) {
const preview = availableTools.slice(0, 30).join(", ");
throw new Error(
`chrome-devtools-mcp is missing required tools: ${missing.join(", ")}. ` +
`Available tools (first 30): ${preview || "(none)"}`,
);
}
return {
navigate: resolved.navigate!,
snapshot: resolved.snapshot!,
listNetwork: resolved.listNetwork!,
listConsole: resolved.listConsole!,
screenshot: resolved.screenshot!,
};
}
