error-tracking

error-tracking is a skill for Claude Code, Codex from diet103/claude-code-infrastructure-showcase. It costs 55 tokens per session (2,166 once invoked), scanned A, original, MIT.

Instructions for adding Sentry, an error-reporting and performance-monitoring service, to application services using its version 8 patterns.

In plain words
What is it for?
Use it when adding error handling, controllers, routes, scheduled jobs, background workflows, or database-performance tracking.
Why use it?
They make sure errors and selected performance data are captured consistently instead of being left only in console logs.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/diet103/claude-code-infrastructure-showcase/error-tracking
Any agent
npx skills add diet103/claude-code-infrastructure-showcase --skill error-tracking
Clone the repo
git clone --depth 1 https://github.com/diet103/claude-code-infrastructure-showcase

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for error-tracking

README.md
[![agentmods](https://agentmods.dev/badge/skills/diet103/claude-code-infrastructure-showcase/error-tracking.svg)](https://agentmods.dev/skills/diet103/claude-code-infrastructure-showcase/error-tracking)
Your own site
<a href="https://agentmods.dev/skills/diet103/claude-code-infrastructure-showcase/error-tracking"><img src="https://agentmods.dev/badge/skills/diet103/claude-code-infrastructure-showcase/error-tracking.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,166 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00055 $0.02166
Opus 5 $0.00028 $0.01083
Sonnet 5 $0.00011 $0.00433
Haiku 4.5 $0.00006 $0.00217

Measured 4d ago against content hash 39c218d9dec4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

error-tracking scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl http://localhost:3000/api/sentry/test-error
.agents/skills/error-tracking/SKILL.md · 363 lines

How it starts

The opening of the file, as written. The whole thing — 363 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Sentry Integration Skill

Purpose

This skill enforces comprehensive Sentry error tracking and performance monitoring across all services following Sentry v8 patterns.

When to Use This Skill

  • Adding error handling to any code
  • Creating new controllers or routes
  • Instrumenting cron jobs
  • Tracking database performance
  • Adding performance spans
  • Handling workflow errors

🚨 CRITICAL RULE

ALL ERRORS MUST BE CAPTURED TO SENTRY - No exceptions. Never use console.error alone.

Current Status

Example: API Service ✅ Complete

  • Sentry v8 fully integrated
  • All workflow errors tracked
  • Background job processors instrumented
  • Test endpoints available

Sentry Integration Patterns

1. Controller Error Handling

// ✅ CORRECT - Use BaseController
import { BaseController } from '../controllers/BaseController';

export class MyController extends BaseController {
    async myMethod() {
        try {
            // ... your code
        } catch (error) {
            this.handleError(error, 'myMethod'); // Automatically sends to Sentry
        }
    }
}

2. Route Error Handling (Without BaseController)

import * as Sentry from '@sentry/node';

router.get('/route', async (req, res) => {
    try {
        // ... your code
    } catch (error) {
        Sentry.captureException(error, {
            tags: { route: '/route', method: 'GET' },
            extra: { userId: req.user?.id }
        });
        res.status(500).json({ error: 'Internal server error' });
    }
});

3. Workflow Error Handling

Example of a domain-specific Sentry helper from the original production project. If you build a helper like this for your domain, the call site looks like:

import { WorkflowSentryHelper } from '../workflow/utils/sentryHelper';

WorkflowSentryHelper.captureWorkflowError(error, {
    workflowCode: 'INVOICE_APPROVAL',
    instanceId: 123,
    stepId: 456,
    userId: 'user-123',
    operation: 'stepCompletion',
    metadata: { additionalInfo: 'value' }
});

Read the full file on GitHub · 363 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 363 lines · 55 tokens per session scan A 39c218d9dec4

Subscribe to this mod's changes

error-tracking is a skill published in the GitHub repository diet103/claude-code-infrastructure-showcase (10,016 stars, last pushed 1mo ago), licensed MIT. It adds 55 tokens to every session and 2,166 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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