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peek

cubenest/rrweb-stack
STDIOregistry active
Summary

Connects Claude to browser sessions you've already recorded with the peek Chrome extension. Exposes three main operations: list all captured sessions, fetch full session details (DOM snapshots, console logs, network waterfalls), and export sessions as markdown or JSON. Useful when you need your AI agent to debug frontend behavior based on real user flows instead of guessing from source code alone. Everything stays local, uses rrweb's event format under the hood, and requires Node 22+ because of the sqlite dependency. Part of a larger monorepo that also ships tracelane, a WebdriverIO test reporter using the same recording substrate. Still in alpha but the MCP interface is straightforward stdio transport.

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Categories
Web & Browser Automation
Registryactive
Package@peekdev/mcp
TransportSTDIO
UpdatedJun 10, 2026
View on GitHub

tracelane  peek

rrweb-stack

Two OSS products on one rrweb-based substrate. Both ship as npm packages today.

ProductOne lineInstall
tracelaneThe reporter for your WebdriverIO tests — Playwright and 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
peekYour 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

tracelane install — one command

Above: npx @tracelane/cli init in a real WebdriverIO project — detect runner, install, edit wdio.conf.ts, ignore reports dir.

peek query — sessions are structured data

Above: peek sessions list then peek sessions show ... --format markdown — a recorded browser session as queryable structured output, AI-ready.

CI OpenSSF Scorecard License

What's where

tracelane

PackageStatusWhat it does
@tracelane/wdioalphaWebdriverIO Service — capture + write HTML report
@tracelane/playwrightplanned (Q3 2026)Playwright Reporter implementing onTestEnd + onAttachment
@tracelane/cypressplanned (Q4 2026)JSON-output adapter (no Test Replay overlap)
@tracelane/corealphaFramework-agnostic capture engine — depended on by the adapters
@tracelane/reportalphaSelf-contained HTML report builder

Docs: tracelane.cubenest.in (source under apps/tracelane-docs/). The tracelane-wdio README is the right starting point.

peek

PackageStatusWhat it does
@peekdev/clialphapeek init installer + peek sessions query / export
@peekdev/mcpalphastdio MCP server — exposes captured sessions to Claude Code, Cursor, Cline, Windsurf
peek-extensionalpha (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-sqlite3 dependency 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.

Shared substrate

@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.

Why two products, one repo

Same recording engine, same trust model, two different consumer surfaces:

  • tracelane ships test-time captures into a self-contained HTML artifact your team and AI agents can read offline.
  • peek ships live-browser captures into an MCP server your AI coding agent can query.

Shared upstream means one fork to track, one masking surface to harden, one license + DCO + security policy.

Pre-launch state

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.

Contributing

Apache 2.0. DCO sign-off required on all contributions. See CONTRIBUTING.md, CODE_OF_CONDUCT.md, SECURITY.md.

Sponsor / support

  • GitHub Sponsors — github.com/sponsors/harry-harish (opening for launch)
  • The work is open-source and sustainable; sponsorship keeps it that way. See docs/SUSTAINABILITY.md for the maintenance cadence.

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