typescript-sentry

TypeScript Sentry

When to Use This Skill

Use this skill when...	Use another approach when...
Adding error monitoring to a project	Setting up logging (use a logger library)
Instrumenting performance spans	Monitoring infrastructure metrics (use Prometheus/Grafana)
Setting up cron job monitoring	Setting up uptime monitoring (use Pingdom/UptimeRobot)
Configuring source maps for Sentry	Debugging errors locally (use debugger)
Adding structured logging to Sentry	Configuring project-level Sentry compliance (use /configure:sentry)
Setting up profiling, replay, or enrichment helpers	Managing Sentry project settings in the dashboard
Implementing error/transaction filtering	Creating Sentry alerting rules

Core Expertise

Sentry provides error monitoring and performance tracking:

• Automatic error capture with stack traces
• Performance monitoring with distributed tracing
• Cron job monitoring for scheduled tasks
• Source map integration for readable TypeScript traces
• Rich context with tags, breadcrumbs, and user data
• Structured logging forwarded to Sentry (enableLogs)
• CPU/JS profiling (Node.js + browser)
• Session replay with privacy controls
• User feedback widget
• Enrichment helpers (custom contexts, breadcrumb categories, fingerprinting)

Installation

Bun

bun add @sentry/bun

Node.js

bun add @sentry/node

Next.js

bun add @sentry/nextjs @sentry/profiling-node

React/Browser

bun add @sentry/react
# or
bun add @sentry/browser

Error Capturing

captureException

try {
  await riskyOperation();
} catch (error) {
  Sentry.captureException(error);
  throw error; // Re-throw if needed
}

With Context

Sentry.captureException(error, {
  tags: {
    feature: "checkout",
    paymentProvider: "stripe",
  },
  extra: {
    orderId: order.id,
    userId: user.id,
    cartItems: cart.items.length,
  },
  level: "error", // fatal, error, warning, info, debug
});

captureMessage

// Simple message
Sentry.captureMessage("User completed onboarding");

// With level
Sentry.captureMessage("Rate limit approaching", "warning");

// With context
Sentry.captureMessage("Payment failed", {
  level: "error",
  tags: { gateway: "stripe" },
  extra: { errorCode: "card_declined" },
});

Agentic Optimizations

Context	Command
Install Bun	bun add @sentry/bun
Install Node	bun add @sentry/node
Install Next.js	bun add @sentry/nextjs @sentry/profiling-node
Install React	bun add @sentry/react
Install CLI	bun add -D @sentry/cli
Upload maps	npx sentry-cli sourcemaps inject ./dist && npx sentry-cli sourcemaps upload ./dist
Setup wizard	npx @sentry/wizard@latest -i sourcemaps
Test capture	Sentry.captureMessage("Test from dev")

Quick Reference

Capture Methods

Method	Purpose
captureException(error)	Capture error with stack trace
captureMessage(msg)	Capture text message
captureCheckIn(opts)	Cron job check-in
addBreadcrumb(crumb)	Add navigation/action trail

Context Methods

Method	Purpose
setTag(key, value)	Add filterable tag
setExtra(key, value)	Add debug data
setUser(user)	Set user context
withScope(callback)	Scoped context

Performance Methods

Method	Purpose
startSpan(opts, callback)	Create performance span
withMonitor(slug, callback)	Monitor cron job

Severity Levels

Level	Use Case
fatal	App crash, unrecoverable
error	Error requiring attention
warning	Potential issue
info	Informational
debug	Debugging only

Configuration Options

Option	Description
dsn	Project data source name
environment	Environment name (production, staging)
release	Application version
tracesSampleRate	Transaction sample rate (0.0-1.0)
tracesSampler	Dynamic sampling function
sendDefaultPii	Capture IP/headers
integrations	SDK integrations array
enableLogs	Forward structured logs to Sentry
profileSessionSampleRate	Profiling sample rate (0.0-1.0)
profileLifecycle	"trace" profiles every traced request
replaysSessionSampleRate	Session replay sample rate
replaysOnErrorSampleRate	Replay capture rate on errors
ignoreErrors	Array of error patterns to suppress
beforeSend	Filter/modify events before sending
beforeSendTransaction	Filter transactions before sending
beforeSendLog	Filter structured logs before sending

For detailed examples, advanced patterns, and best practices, see REFERENCE.md.