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Two OSS products on one rrweb substrate: tracelane (self-contained HTML test-failure replays for WDIO/Playwright/Cypress
Two OSS products on one rrweb-based substrate. Both ship as npm packages today.
| Product | One line | Install |
|---|---|---|
| tracelane | The recorder for your WebdriverIO and Playwright tests — Cypress on the roadmap. Self-contained HTML for every run — replay failures, audit successes, attach to any bug tracker. No SaaS, no dashboard, no signup. | npx @tracelane/cli init |
| peek | Your real browser, exposed to your AI coding agent over MCP — capture once, query forever, never leaves your machine. | npm install -g @peekdev/cli && npx peek init |
Above: npx @tracelane/cli init in a real WebdriverIO project — detect runner, install, edit wdio.conf.ts, ignore reports dir.
Above: peek sessions list then peek sessions show ... --format markdown — a recorded browser session as queryable structured output, AI-ready.
| Package | Status | What it does |
|---|---|---|
@tracelane/wdio | alpha | WebdriverIO Service — capture + write HTML report |
@tracelane/playwright | alpha | Playwright Reporter + auto-fixture — capture + write HTML report |
@tracelane/cypress | planned (Q4 2026) | JSON-output adapter (no Test Replay overlap) |
@tracelane/core | alpha | Framework-agnostic capture engine — depended on by the adapters |
@tracelane/report | alpha | Self-contained HTML report builder |
Docs: tracelane.cubenest.in (source under apps/tracelane-docs/). The tracelane-wdio README is the right starting point.
| Package | Status | What it does |
|---|---|---|
@peekdev/cli | alpha | peek init installer + peek sessions query / export |
@peekdev/mcp | alpha | stdio MCP server — exposes captured sessions to Claude Code, Cursor, Cline, Windsurf |
peek-extension | alpha (CWS submission pending) | Chrome MV3 extension — the real browser, recorded |
Docs: peek.cubenest.in (source under apps/peek-docs/).
peek requires Node.js ≥ 22. Its native
better-sqlite3dependency only ships prebuilt binaries for Node 22+; on older Node (notably Windows, which has no C/C++ toolchain by default) the install falls back to compiling from source and fails.
@cubenest/rrweb-core — vendored PostHog rrweb fork, PII masking primitives, large-DOM throttling, screenshot fallback, network/console capture abstractions, compression helpers. Used by both products. The fork is pinned by SHA + the substrate's NOTICE attributes both PostHog's plugin lineage and the upstream rrweb roots.
Same recording engine, same trust model, two different consumer surfaces:
Shared upstream means one fork to track, one masking surface to harden, one license + DCO + security policy.
Pre-1.0. Alpha packages live on npm. Branch protection is on main (PR + CI + DCO + linear history). All workflows use Trusted Publishing OIDC + SLSA provenance. Renovate runs with a 7-day cooldown (21 days for the @posthog/rrweb lineage) and config:best-practices. Public launch motion is in progress.
Apache 2.0. DCO sign-off required on all contributions. See CONTRIBUTING.md, CODE_OF_CONDUCT.md, SECURITY.md.
docs/SUSTAINABILITY.md for the maintenance cadence.Run Claude Code as an MCP server so any agent can delegate coding tasks to it
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