pcl-carbon

pcl-carbon

A Claude Code plugin for analyzing Carbon workflow recording exports.

Carbon is a browser extension that captures a user's workflow — DOM events, network traffic, input sequences, WebSocket frames, storage writes — and emits a JSON export. This plugin consumes the export and surfaces the signal: interaction timeline, network timeline, API surface grouped by host, auth surface (cookies and auth headers seen per host), storage writes, and an app fingerprint.

Built by Papercut Labs.

Install

In Claude Code:

/plugin marketplace add [email protected]:teren-papercutlabs/pcl-carbon-plugin.git
/plugin install pcl-carbon@pcl-carbon-plugin
/pcl-carbon:doctor

The doctor check must print ✓ on all four steps. If it doesn't, the error message tells you exactly what to fix.

Usage

/pcl-carbon:inspect /path/to/carbon-export.json
/pcl-carbon:analyze /path/to/carbon-export.json

The inspect command prints a structured summary (interactions, network, auth surface, app fingerprint). The analyze command writes a domain-analysis markdown next to the source file.

Flags for inspect (pass after the file path):

• --events — raw event dump
• --network — network section only
• --auth — auth surface only
• --storage — storage writes only
• --json — machine-readable JSON output

Supported inputs

Unencrypted Carbon JSON exports. Use the auth'd "download unencrypted" path in the Carbon extension. Encrypted .carbon files are not supported — they route through Papercut Labs' pipeline.

Support

[email protected]