DebugBundle

Production debugging bundles for AI agents, with runtime error reporting and incident response.

DebugBundle provides runtime error reporting, crash reporting, incident response, endpoint health checks, and product analytics for humans and AI agents. It captures runtime failures, groups them into incidents, and publishes deterministic debug bundles. Its monitoring scope is customer-facing runtime behavior and endpoint health, not generic infrastructure metrics.

Works with AI coding agents including Codex, Claude Code, Cursor, and GitHub Copilot. See the Codex and Claude Code setup guides for developer plugins and direct MCP connections.

Why DebugBundle?

Modern AI agents are useful only when they get enough trustworthy context. DebugBundle packages the facts around a production incident into a versioned bundle instead of leaving agents to scrape dashboards, logs, traces, and chat threads.

Key properties:

• Agent-native bundles: deterministic failure and improvement bundles with errors, requests, responses, logs, frontend context, deploy metadata, runtime details, and reproduction hints.
• Interface parity: API, CLI, and MCP expose the same incident, bundle, probe, webhook, alert, project, and automation workflows.
• Local-first setup: start without a cloud account by writing events to .debugbundle/local/events/, then connect to DebugBundle Cloud when ready.
• Safe SDKs: SDK failures are swallowed internally, sensitive fields are redacted before transport, and duplicate storms are suppressed locally.
• Self-hostable core: Compose-based stack for the web app, API, worker, Postgres, Redis, and S3-compatible object storage.

AnalyticsBundle

AnalyticsBundle extends debugging from incident evidence to product-usage evidence without turning DebugBundle into a long-term raw-event store. It is opt-in browser analytics for the questions a human or agent needs to improve a product: visits and active users, routes and funnels, device/browser/OS/language segments, feature use, friction markers, incident impact, and bounded structured journey replay.

• Ask directly: API, CLI, and MCP expose aggregate metrics, journey patterns, opportunities, and generated AnalyticsBundles through the same project-authorized surface.
• Generate by analysis unit: bundles describe a usage, funnel, route, friction, conversion, deploy, or incident-impact question. DebugBundle does not create one AnalyticsBundle per visit.
• Keep evidence explainable: a generated bundle includes aggregate metrics, linked incidents/deploys, privacy-safe journey timelines, and deterministic journey-selection rank/basis for agent review.
• Stay privacy- and cost-conscious: raw analytics inputs and retained journey samples expire; long-lived usage is aggregate rollups. Debug capture remains independent when analytics is disabled, unavailable, sampled out, quota-limited, or unhealthy.

See the repository public interface contract for API/CLI/MCP parity and the self-host guide for retention and upgrade behavior.

Quick Start

Choose the path that matches how you want to evaluate DebugBundle.

Cloud

Use Cloud when you are preparing a hosted deployment or want team-visible incidents, alerts, webhooks, GitHub automation, API access, and MCP access.

npm install -g @debugbundle/cli
debugbundle setup
debugbundle login
debugbundle connect

debugbundle connect creates or selects a cloud project, creates a write-only project token, and updates .debugbundle/local/connection.json. Put the shown project token in your hosted environment:

DEBUGBUNDLE_PROJECT_TOKEN=dbundle_proj_xxxxxxxxxxxx

Add the smallest SDK or ingestion path that matches your app, deploy it with the token configured, then verify ingestion:

debugbundle verify cloud --project-id proj_01HXYZ... --trigger-5xx
debugbundle incidents --source cloud
debugbundle inspect inc_01HXYZ...

See the full Cloud quickstart and connect-to-cloud guide.

Local-only

Use local-only mode when you want captured data and bundles to stay on the machine or storage volume where the SDK and CLI run.

npm install -g @debugbundle/cli
debugbundle setup --project-mode local-only

Initialize an SDK in local mode where supported, or use debugbundle watch for existing logs. After triggering a test error:

debugbundle process
debugbundle incidents --source local
debugbundle inspect inc_local_...

Local events are written under .debugbundle/local/events/; generated bundles are written under .debugbundle/bundles/. See the local-only guide.

Install an SDK

All SDKs follow the same universal interface: init, captureException, captureError, captureLog, captureRequest, captureMessage, setContext, probe, and flush.

Node.js

npm install @debugbundle/sdk-node

import { debugbundle } from "@debugbundle/sdk-node";

debugbundle.init({
  projectToken: process.env.DEBUGBUNDLE_PROJECT_TOKEN,
  environment: "production",
  service: "api"
});

debugbundle.captureExceptions();
debugbundle.captureRejections();

Express, Fastify, Next.js, pino, winston, bunyan, local file transport, remote capture policy, probes, and browser relay handlers are supported.

Browser

npm install @debugbundle/sdk-browser

import { createDebugBundleBrowserSdk } from "@debugbundle/sdk-browser";

const debugbundle = createDebugBundleBrowserSdk();

debugbundle.init({
  transportMode: "relay",
  endpoint: "/debugbundle/browser",
  environment: "production",
  service: "web"
});

For full-stack apps, prefer a backend browser relay so project tokens stay server-side. Same-origin relay paths are simplest; split frontend/backend deployments can use explicit browser relay mode with an absolute backend relay URL and backend origin allowlisting. Frontend-only deployments can send directly to DebugBundle Cloud with a dedicated public write-only token and an allowed-origin restriction. See Browser Relay Setup.

Python

pip install debugbundle-python

import os
import debugbundle

debugbundle.init(
    project_token=os.environ["DEBUGBUNDLE_PROJECT_TOKEN"],
    environment="production",
    service="api",
)

debugbundle.capture_exceptions()
debugbundle.capture_logging()

Django, Flask, FastAPI, Python logging, structlog, loguru, local file transport, remote capture policy, probes, and browser relay helpers are supported.

PHP