Install the "sentry-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/sentry-hello-world into .claude/skills/sentry-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sentry-hello-world", then confirm the skill loads.
Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill sentry-hello-world -a codex
Project install goes to .agents/skills/; add -g for ~/.codex/skills/.
Install the "sentry-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/sentry-hello-world into .agents/skills/sentry-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sentry-hello-world", then confirm the skill loads.
Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill sentry-hello-world -a cursor
Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.
Install the "sentry-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/sentry-hello-world into .cursor/skills/sentry-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sentry-hello-world", then confirm the skill loads.
Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill sentry-hello-world -a gemini-cli
Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.
Install the "sentry-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/sentry-hello-world into .gemini/skills/sentry-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sentry-hello-world", then confirm the skill loads.
Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill sentry-hello-world -a github-copilot
Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.
Install the "sentry-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/sentry-hello-world into .github/skills/sentry-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sentry-hello-world", then confirm the skill loads.
GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill sentry-hello-world -a opencode
OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
Install the "sentry-hello-world" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/sentry-hello-world into .opencode/skills/sentry-hello-world/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sentry-hello-world", then confirm the skill loads.
OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
Skill name
sentry-hello-world
GitHub stars
2.8k
Token cost
~3.5k tokens
SKILL.md length
657 words
Files
4 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT
At a glance
Capture your first test error with Sentry and verify it appears in the dashboard.
Works in 6 steps: Verify the SDK Is Active → Capture a Test Message → Capture a Test Exception → …
Testing a new Sentry integration
SKILL.md covers Overview, Prerequisites, Instructions and Examples, plus 4 more sections
Calls node, python and curl; reaches sentry.io
What it does
Sentry Hello World is an agent skill from jeremylongshore/tons-of-skills-marketplace. Capture your first test error with Sentry and verify it appears in the dashboard. Use when testing a new Sentry integration, verifying error capture works after install-auth, or learning how to enrich events with user context, tags, and breadcrumbs. Trigger with phrases like "test sentry", "sentry hello world", "verify sentry", "first sentry error", "sentry capture test".
Its SKILL.md is about 3.5k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including reference files (for example `references/errors.md`, `references/examples.md` and `references/implementation.md`). Compatibility notes: Designed for Claude Code
It works with Sentry, TypeScript, Python and Node.js. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.
When your agent uses it
Testing a new Sentry integration
Verifying error capture works after install-auth
Learning how to enrich events with user context
With phrases like test sentry
Example prompts
“test sentry”
“sentry hello world”
“verify sentry”
“/sentry-hello-world”
Requirements
Python 3
Node.js
Compatibility (from SKILL.md): Designed for Claude Code
Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
Read
Write
Edit
Bash(node:*)
Bash(python:*)
Bash(npm:*)
Grep
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
node
python
curl
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
sentry.io
Also links to:
docs.sentry.io
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Compatibility
Designed for Claude Code
From compatibility in the SKILL.md frontmatter.
Context cost
Sentry Hello World loads about 3.5k tokens when it runs, and up to ~4.1k if it reads all its reference files. Until then it costs about 98 tokens; SKILL.md has 657 words of instructions outside code blocks.
Always· name and description, kept in context so the agent knows when to use it
~98
When it runs· the whole SKILL.md, loaded when a task matches
~3.5k
With references· SKILL.md plus every file in references/, read only if the agent opens them
~4.1k
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
Download SKILL.mdSave it as .claude/skills/sentry-hello-world/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
sentry-hello-world
description
Capture your first test error with Sentry and verify it appears in the dashboard.
Use when testing a new Sentry integration, verifying error capture works after
install-auth, or learning how to enrich events with user context, tags, and breadcrumbs.
Trigger with phrases like "test sentry", "sentry hello world",
"verify sentry", "first sentry error", "sentry capture test".
Send your first test events to Sentry — a captured message, a captured exception, and a fully-enriched error with user context, tags, and breadcrumbs — then verify each one appears in the Sentry dashboard. This skill covers both Node.js (@sentry/node) and Python (sentry-sdk).
instrument.mjs loaded before app code (Node.js) or sentry_sdk.init() called (Python)
Network access to *.ingest.sentry.io
Instructions
Step 1 — Verify the SDK Is Active
Before sending test events, confirm the SDK initialized correctly. If getClient() returns undefined, the SDK was never initialized — go back to sentry-install-auth.
TypeScript (Node.js):
typescript
import * as Sentry from '@sentry/node';
const client = Sentry.getClient();
if (!client) {
console.error('Sentry SDK not initialized. Ensure instrument.mjs is loaded first.');
console.error('Run with: node --import ./instrument.mjs your-script.mjs');
process.exit(1);
}
console.log('Sentry SDK active — DSN configured');
Python:
python
import sentry_sdk
client = sentry_sdk.Hub.current.client
if client is None or client.dsn is None:
print("Sentry SDK not initialized. Call sentry_sdk.init() first.")
exit(1)
print("Sentry SDK active — DSN configured")
Step 2 — Capture a Test Message
captureMessage sends an informational event without a stack trace. Use it to verify basic connectivity between your app and Sentry.
TypeScript:
typescript
import * as Sentry from '@sentry/node';
// captureMessage returns the event ID (a 32-char hex string)
const eventId = Sentry.captureMessage('Hello Sentry! SDK verification test.', 'info');
console.log(`Message sent — Event ID: ${eventId}`);
// Also test 'warning' level — appears with yellow indicator in dashboard
Sentry.captureMessage('Warning-level test message', 'warning');
// IMPORTANT: flush before process exits or events may be lost
await Sentry.flush(2000);
Python:
python
import sentry_sdk
event_id = sentry_sdk.capture_message("Hello Sentry! SDK verification test.", level="info")
print(f"Message sent — Event ID: {event_id}")
sentry_sdk.capture_message("Warning-level test message", level="warning")
# Flush to ensure delivery before process exits
sentry_sdk.flush()
Step 3 — Capture a Test Exception
captureException sends a full error with stack trace. Always pass an actual Error object (not a string) so Sentry generates a proper stack trace.
TypeScript:
typescript
import * as Sentry from '@sentry/node';
try {
throw new Error('Hello Sentry! This is a test exception.');
} catch (error) {
const eventId = Sentry.captureException(error);
console.log(`Exception sent — Event ID: ${eventId}`);
}
await Sentry.flush(2000);
Python:
python
import sentry_sdk
try:
raise ValueError("Hello Sentry! This is a test exception.")
except Exception as e:
event_id = sentry_sdk.capture_exception(e)
print(f"Exception sent — Event ID: {event_id}")
sentry_sdk.flush()
Step 4 — Add User Context and Tags
Enrich events with identity and metadata so you can filter and search in the dashboard. setUser attaches to all subsequent events in the current scope. setTag creates indexed, searchable key-value pairs.
TypeScript:
typescript
import * as Sentry from '@sentry/node';
// Attach user identity — appears in the "User" section of every event
Sentry.setUser({
id: 'test-user-001',
email: 'dev@example.com',
username: 'developer',
});
// Tags are indexed and searchable — use for filtering in Issues view
Sentry.setTag('test_run', 'hello-world');
Sentry.setTag('team', 'platform');
// setContext adds structured data (not indexed, but visible in event detail)
Sentry.setContext('test_metadata', {
ran_at: new Date().toISOString(),
node_version: process.version,
purpose: 'SDK verification',
});
// This event will carry user, tags, and context
Sentry.captureMessage('Test event with full context attached', 'info');
await Sentry.flush(2000);
Breadcrumbs record a trail of events leading up to an error. They appear in the event detail view, giving you the chronological context of what happened before the crash.
TypeScript:
typescript
import * as Sentry from '@sentry/node';
Sentry.addBreadcrumb({
category: 'auth',
message: 'User authenticated successfully',
level: 'info',
});
Sentry.addBreadcrumb({
category: 'http',
message: 'GET /api/users returned 200',
level: 'info',
data: { status_code: 200, url: '/api/users', method: 'GET' },
});
Sentry.addBreadcrumb({
category: 'ui',
message: 'User clicked "Submit Order" button',
level: 'info',
});
// This exception will carry all three breadcrumbs above
try {
throw new Error('Order processing failed — breadcrumb trail attached');
} catch (error) {
Sentry.captureException(error);
}
await Sentry.flush(2000);
Sentry Hello World next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
Sentry Hello World compared with similar skills
Skill
Stars
Used in
Tokens
Auto-check
Licence
Repo updated
Sentry Hello World this skilljeremylongshore/tons-of-skills-marketplace
Capture your first test error with Sentry and verify it appears in the dashboard. Sentry Hello World is an agent skill from jeremylongshore/tons-of-skills-marketplace. Capture your first test error with Sentry and verify it appears in the dashboard.
When should I use Sentry Hello World?
Sentry Hello World fits situations like: testing a new Sentry integration; verifying error capture works after install-auth; learning how to enrich events with user context; with phrases like test sentry.
How do I install Sentry Hello World in Claude Code?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill sentry-hello-world -a claude-code`. Or copy the skill folder (skills/.curated/sentry-hello-world in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/sentry-hello-world in your project. Claude Code loads it when a task matches its description.
How do I install Sentry Hello World in Codex?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill sentry-hello-world -a codex`. Or copy the skill folder (skills/.curated/sentry-hello-world in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/sentry-hello-world in your project. Codex loads it when a task matches its description.
Can I use Sentry Hello World in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill sentry-hello-world -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sentry-hello-world, .gemini/skills/sentry-hello-world, .github/skills/sentry-hello-world and .opencode/skills/sentry-hello-world in your project.
What does Sentry Hello World need to run?
Going by SKILL.md and its folder, Sentry Hello World needs the command-line tools its instructions call (node, python and curl). Our summary lists: Python 3; Node.js. Its frontmatter pre-approves these tools: Read, Write, Edit, Bash(node:*), Bash(python:*), Bash(npm:*), Grep. Compatibility (from SKILL.md): Designed for Claude Code.
Does Sentry Hello World access the network?
SKILL.md names 2 domains. In commands or code: sentry.io; the agent is likely to contact it when it follows the instructions. As links in the text: docs.sentry.io. This is read from the text; nothing was executed.
Is Sentry Hello World safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Sentry Hello World use?
Sentry Hello World is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Sentry Hello World use?
About 3.5k tokens (SKILL.md is roughly 14k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 643 tokens, read only when the agent opens those files.
What are the alternatives to Sentry Hello World?
Skills that share tags, products or a category with Sentry Hello World: Node Backend Development Guidelines (diet103/claude-code-infrastructure-showcase, 10k stars), Dbg (theodo-group/debug-that, 158 stars), Brightdata SDK JS (brightdata/skills, 264 stars) and Full Stack Scaffold (Dokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI, 508 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Sentry Hello World?
jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.