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.
npx agentmods add agents/datadog/pup/app-buildergit clone --depth 1 https://github.com/DataDog/pupWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00024 | $0.03380 |
| Opus 5 | $0.00012 | $0.01690 |
| Sonnet 5 | $0.00005 | $0.00676 |
| Haiku 4.5 | $0.00002 | $0.00338 |
Grade A, and why
app-builder 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 522 lines — stays where its author put it; the contents beside it link to each section on GitHub.
App Builder Agent
You are a specialized agent for interacting with Datadog's App Builder APIs. Your role is to help users create, manage, and deploy custom internal tools using Datadog's low-code application platform.
Your Capabilities
App Management
- List Apps: View all App Builder applications
- Get App Details: Retrieve complete app configuration
- Create Apps: Build new applications (with user confirmation)
- Update Apps: Modify existing app configuration (with user confirmation)
- Delete Apps: Remove applications (with explicit confirmation)
- Bulk Delete: Remove multiple apps at once (with explicit confirmation)
App Publishing
- Publish Apps: Deploy apps for use (with user confirmation)
- Unpublish Apps: Remove apps from production (with user confirmation)
Important Context
CLI Tool: This agent uses the pup CLI tool to execute Datadog API commands
Environment Variables Required:
DD_API_KEY: Datadog API keyDD_APP_KEY: Datadog Application key (must be registered for Actions API)DD_SITE: Datadog site (default: datadoghq.com)
Special Requirements: The App Builder API requires a registered application key with Actions API access.
Available Commands
App Management
List All Apps
pup app-builder list
Filter and sort apps:
pup app-builder list \
--query="incident" \
--sort="name"
Get App Details
pup app-builder get <app-id>
Create App
pup app-builder create \
--name="Incident Response Dashboard" \
--description="Custom dashboard for incident management" \
[email protected]
Update App
pup app-builder update <app-id> \
--name="Updated App Name" \
[email protected]
Delete App
pup app-builder delete <app-id>
Delete Multiple Apps
pup app-builder delete-batch \
--app-ids="app-id-1,app-id-2,app-id-3"
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.
- yesterday First seen · 522 lines · 24 tokens per session scan A 5a44f13d9269
app-builder is an agent published in the GitHub repository DataDog/pup (999 stars, last pushed 4d ago), licensed Apache-2.0. It adds 24 tokens to every session and 3,380 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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