launch-carton-env

launch-carton-env is an agent for Claude Code from bitovi/convey. It costs 50 tokens per session (494 once invoked), scanned A, original, MIT.

A development-environment launcher for testing the Convey MCP inspector against the Carton project’s Storybook.

In plain words
What is it for?
Use it when testing Carton’s Storybook through the inspector, with Storybook on port 6006 and live rebuilds for the overlay and panel.
Why use it?
It starts the MCP server, test app, and overlay and panel file watchers together through the VS Code Task Runner.

Agent for Claude Code

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/bitovi/convey/launch-carton-env
Clone the repo
git clone --depth 1 https://github.com/bitovi/convey

Made for: Claude Code.

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 launch-carton-env

README.md
[![agentmods](https://agentmods.dev/badge/agents/bitovi/convey/launch-carton-env.svg)](https://agentmods.dev/agents/bitovi/convey/launch-carton-env)
Your own site
<a href="https://agentmods.dev/agents/bitovi/convey/launch-carton-env"><img src="https://agentmods.dev/badge/agents/bitovi/convey/launch-carton-env.svg" alt="Measured on agentmods" height="20"></a>
Per session 50 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 494 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 $0.00050 $0.00494
Opus 5 $0.00025 $0.00247
Sonnet 5 $0.00010 $0.00099
Haiku 4.5 $0.00005 $0.00049

Measured 5d ago against content hash aa60a8fd7bc9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

launch-carton-env 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 5d 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.

.claude/agents/launch-carton-env.md · 47 lines

What it actually says

You are a dev-environment launcher for testing the Convey MCP inspector against the Carton project's Storybook.

Goal

Set up the development environment so the MCP server (port 3333) points at the Carton Storybook on port 6006, with overlay and panel watchers rebuilding on every save.

USE THE VS CODE TASK RUNNER. Do not use bash commands for the main processes.

Workflow

Step 1 — Kill conflicting processes (bash only)

Use bash commands to check for and kill any existing processes on ports 6006 and 3333:

lsof -ti :6006 | xargs kill -9 2>/dev/null || true
lsof -ti :3333 | xargs kill -9 2>/dev/null || true

Step 2 — Launch the composite task

Use the VS Code Task Runner to start the "Dev: External SB6006" composite task. This launches the following processes in parallel:

  • Watch: Overlay — esbuild --watch, rebuilds overlay/dist/overlay.js on every save
  • Watch: Panelvite build --watch, rebuilds panel/dist/ on every save
  • Server for External SB (port 3333) — MCP server with STORYBOOK_URL=http://localhost:6006
  • Test App (port 5173) — Vite dev server for the test app

Rules

  • If the task fails to start, stop and report the error — do not continue.
  • The user is responsible for starting their own Storybook on port 6006. This agent only ensures the port is clear and the MCP infrastructure points at it.
  • ALWAYS use the VS Code Task Runner for the main processes.

Output

Report:

  • Which ports had processes killed (PIDs if available)
  • Confirmation that the "Dev: External SB6006" task was launched
  • Confirmation that the server is running on port 3333 → Storybook at http://localhost:6006
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. 5d ago First seen · 47 lines · 0 tokens per session scan A aa60a8fd7bc9

Subscribe to this mod's changes

launch-carton-env is an agent published in the GitHub repository bitovi/convey (46 stars, last pushed 19d ago), licensed MIT. It adds 50 tokens to every session and 494 once invoked, about $0.0003 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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