getAnonymousId (analytics/identity.ts)

Browser-side identity tracking for PostHog analytics with SSR-safe storage handling

// Source: https://github.com/nexu-io/open-design | License: Apache-2.0 | Copyright You must retain, in the Source form of any Derivative Works
// Provided via justclaw.it.com; keep this notice with the code.
// Browser-side identity bookkeeping for PostHog product analytics. Designed
// so it stays SSR-safe: every entry point guards window/localStorage access
// and falls back to a deterministic-enough fake id under jsdom and Next.js
// pre-render. The daemon mirrors these values via the x-od-analytics-*
// headers (see @open-design/contracts/analytics).

import type { AnalyticsClientType } from '@open-design/contracts/analytics';
import { detectOpenDesignHostClientType } from '@open-design/host';

const ANONYMOUS_ID_KEY = 'open-design:analytics.anonymous_id';
const SESSION_ID_KEY = 'open

... (truncated -- full source via MCP)