clarinet-cli

clarinet-cli is a skill for Claude Code from stx-labs/clarity-claude-plugin. It costs 22 tokens per session (338 once invoked), scanned A, original, MIT.

A command-line tool for creating, testing, and deploying Clarity smart contracts, which are programs that run on the Stacks blockchain. It manages contract projects and their dependencies.

In plain words
What is it for?
Use it to create Clarinet projects and contracts, add contract dependencies, run TypeScript unit tests, and discover more commands from the CLI help. Commands should be run from the project root containing Clarinet.toml.
Why use it?
It gives Stacks developers a standard workflow for setting up projects and running tests without manually maintaining project configuration.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the clarity-plugin plugin — 1 skill shipped together

Good fit Use it to create Clarinet projects and contracts, add contract dependencies, run TypeScript unit tests, and discover more commands from the CLI help. Commands should be run from the project root containing Clarinet.toml.

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Install with agentmods
npx agentmods add skills/stx-labs/clarity-claude-plugin/clarinet-cli
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.

Any agent
npx skills add stx-labs/clarity-claude-plugin --skill clarinet-cli
Clone the repo
git clone --depth 1 https://github.com/stx-labs/clarity-claude-plugin

Made for: Claude Code.

Or install clarity-plugin, the plugin that ships this one along with the rest of its 1 skill.

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 clarinet-cli

README.md
[![agentmods](https://agentmods.dev/badge/skills/stx-labs/clarity-claude-plugin/clarinet-cli/github.svg)](https://agentmods.dev/skills/stx-labs/clarity-claude-plugin/clarinet-cli)
Your own site
<a href="https://agentmods.dev/skills/stx-labs/clarity-claude-plugin/clarinet-cli"><img src="https://agentmods.dev/badge/skills/stx-labs/clarity-claude-plugin/clarinet-cli/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.

agentmods 80×15 button for clarinet-cli

Your own site · 80×15
<a href="https://agentmods.dev/skills/stx-labs/clarity-claude-plugin/clarinet-cli"><img src="https://agentmods.dev/badge/skills/stx-labs/clarity-claude-plugin/clarinet-cli.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 22 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 338 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00022 $0.00338
Opus 5 $0.00011 $0.00169
Sonnet 5 $0.00004 $0.00068
Haiku 4.5 $0.00002 $0.00034

Measured 8d ago against content hash 573c9ef70bc0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

clarinet-cli 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 8d 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.

skills/clarinet-cli/SKILL.md · 29 lines

What it actually says

Clarinet CLI

You have access to the clarinet CLI — the primary tool for building, testing, and deploying Clarity smart contracts on the Stacks blockchain.

Core commands

Project management

  • clarinet new <project-name> — Create a new Clarinet project with the standard directory structure
  • clarinet contracts new <contract-name> — Create a new contract within an existing project (generates the .clar file and test file)
  • clarinet requirements add <contract-address> — Add a contract dependency (e.g. a trait or deployed contract your project depends on)

Testing

  • Unit tests are written in TypeScript — use the package manager matching the project's lockfile (package-lock.json, pnpm-lock.yaml, yarn.lock, bun.lockb), defaulting to npm if none is present

Discovering more commands

  • Run clarinet --help to see all available commands
  • Run clarinet <command> --help to see detailed usage for any specific command

Usage guidelines

  • Always run clarinet commands from the project root (the directory containing Clarinet.toml)
  • Never manually edit Clarinet.toml to add contracts or requirements — always use clarinet contracts new and clarinet requirements add instead, which handle all necessary scaffolding
  • When creating a new project with clarinet new, cd into the new directory before running further commands
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. 8d ago First seen · 29 lines · 22 tokens per session scan A 573c9ef70bc0

Subscribe to this mod's changes

clarinet-cli is a skill published in the GitHub repository stx-labs/clarity-claude-plugin (2 stars, last pushed 6mo ago), licensed MIT. It adds 22 tokens to every session and 338 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 2026-08-31.

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