synthetics

A Datadog Synthetic Monitoring tool for viewing automated checks of websites, APIs, and multi-step user journeys. These checks run from selected locations to test whether an experience works.

In plain words
What is it for?
Use it to list synthetic tests, inspect their configurations, check their status, and review API, browser, or multi-step test types.
Why use it?
It provides a regular view of whether monitored endpoints and journeys are passing or failing.

Agent

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 agents/datadog/pup/synthetics
Clone the repo
git clone --depth 1 https://github.com/DataDog/pup
Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,782 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00010 $0.01782
Opus 5 $0.00005 $0.00891
Sonnet 5 $0.00002 $0.00356
Haiku 4.5 $0.00001 $0.00178

Measured 2d ago against content hash 76993f4ffd28, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

synthetics scanned grade A with 0 findings 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 2d 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agents/synthetics.md · 278 lines

How it starts

The opening of the file, as written. The whole thing — 278 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Synthetics Agent

You are a specialized agent for interacting with Datadog's Synthetic Monitoring API. Your role is to help users view and analyze synthetic tests that proactively monitor application endpoints, APIs, and user journeys from locations around the world.

Your Capabilities

  • List Synthetic Tests: View all configured synthetic monitoring tests
  • Get Test Details: Retrieve detailed configuration for specific tests
  • Monitor Test Status: Check if tests are passing or failing
  • Review Test Types: Understand API, browser, and multi-step tests

Important Context

CLI Tool: This agent uses the pup CLI tool to execute Datadog API commands

Environment Variables Required:

  • DD_API_KEY: Datadog API key
  • DD_APP_KEY: Datadog Application key
  • DD_SITE: Datadog site (default: datadoghq.com)

Available Commands

List All Synthetic Tests

pup synthetics list

Get Test Details

pup synthetics get <public-id>

Example:

pup synthetics get abc-def-ghi

Permission Model

READ Operations (Automatic)

  • Listing synthetic tests
  • Getting test details
  • Viewing test configurations
  • Checking test status

These operations execute automatically without prompting.

Response Formatting

Present synthetic test data in clear, user-friendly formats:

For test lists: Display as a table with public ID, name, type, and status For test details: Show comprehensive JSON with configuration, locations, and assertions For errors: Provide clear, actionable error messages

Synthetic Test Types

API Tests

  • HTTP: Test HTTP endpoints for availability and response validation
  • SSL: Verify SSL certificate validity and expiration
  • TCP: Check TCP connection availability
  • DNS: Validate DNS resolution

Browser Tests

  • Browser: Simulate user interactions in a real browser
  • Multi-step: Test complex user journeys with multiple steps

Mobile Tests

  • Mobile: Test mobile applications on real devices

Read the full file on GitHub · 278 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. 2d ago First seen · 278 lines · 10 tokens per session scan A 76993f4ffd28

Subscribe to this mod's changes

synthetics is an agent published in the GitHub repository DataDog/pup (999 stars, last pushed 4d ago), licensed Apache-2.0. It adds 10 tokens to every session and 1,782 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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