Claude Quickstarts is a collection of starter projects for building applications with the Claude API, including customer support, financial analysis, and computer-use examples. Developers use them as foundations to customize for their own deployable applications, and the catalogue add-ons provide workflows for working with these quickstarts.
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 skills add anthropics/claude-quickstarts --skill setupgit clone --depth 1 https://github.com/anthropics/claude-quickstartsWrote 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.
[](https://agentmods.dev/skills/anthropics/claude-quickstarts/setup)<a href="https://agentmods.dev/skills/anthropics/claude-quickstarts/setup"><img src="https://agentmods.dev/badge/skills/anthropics/claude-quickstarts/setup/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/anthropics/claude-quickstarts/setup"><img src="https://agentmods.dev/badge/skills/anthropics/claude-quickstarts/setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00087 | $0.04519 |
| Opus 5.5 | $0.00035 | $0.01808 |
| Sonnet 5.5 | $0.00017 | $0.00904 |
| Haiku 4.5 | $0.00009 | $0.00452 |
Grade A, and why
openshell-sandbox 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 15d 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 -LsSf https://raw.githubusercontent.com/NVIDIA/OpenShell/v0.1.2/install.sh | OPENSHELL_VERSION=v0.1.2 sh Copies of this mod
1 near-identical copy found in the catalogue:
- openshell-sandbox — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 372 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Setup walkthrough: NVIDIA OpenShell as a sandbox for Claude Managed Agents
Walk the user through these steps in order, from this directory. Each step
says what to run, what a healthy result looks like, and what to do when it is
not. Finish a step before you start the next. README.md has
the design and ../CLAUDE.md has the full debugging table.
Ground rules
- Never print the environment key or a session token. Ask the user to
paste the key into
.envthemselves. - Ask before you install anything. The OpenShell installer adds a system package and starts a service.
- Do not loosen the policy to make an error go away. Three of the five
commands in step 6 are supposed to fail. Keep
enforcement: enforceandcompatibility: hard_requirement: the defaults for both let violations through. - Shell variables do not outlive a shell. Steps 6 to 8 share
$session,$environment, and$sandbox. A person keeps one terminal open. If you are Claude Code, each command runs in a new shell, so start every command that uses them with the "set the variables again" lines in step 6, and run./start.shin the background with its output in a file you can read. - Look fields up, do not guess them. The policy reference at the end lists where each one is documented.
What you are building
your machine Anthropic
┌────────────────────────────────────────┐ ┌──────────────────────┐
│ start.sh │ │ self-hosted │
│ └─ ant beta:worker poll ──────────────┼─────▶│ environment │
│ │ environment key │ │ (a work queue) │
│ └─ on-work.sh, once per work item│ │ │
│ │ session token, on stdin │ │ agent loop │
│ ┌─────────▼──────────────────────┐ │ │ │
│ │ OpenShell sandbox, one/session │ │ │ │
│ │ ant beta:worker run ──────────┼────┼─────▶│ six routes: 4 on its │
│ │ └─ the agent's bash, files │ │ │ session, 2 on work │
│ └────────────────────────────────┘ │ │ items in its env │
│ policy.yaml, enforced outside it │ └──────────────────────┘
└────────────────────────────────────────┘
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.
- 15d ago First seen · 372 lines · 87 tokens per session scan A 627aef7cd8c5
openshell-sandbox is a skill published in the GitHub repository anthropics/claude-quickstarts (18,012 stars, last pushed 8d ago), licensed MIT. It adds 87 tokens to every session and 4,519 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-10-01.
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