A group of commands for managing environment variables in Vercel. Environment variables are configuration values, such as keys and URLs, kept outside the source code.

Use it to list, download, add, remove, or compare environment variables between Vercel and local development.

It helps keep local and Vercel configuration in sync and makes differences easier to spot.

env — Command for Claude Code by vercel/vercel-plugin

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo

git clone --depth 1 https://github.com/vercel/vercel-plugin

agentmods

npx agentmods add commands/vercel/vercel-plugin/env

Made for: Claude Code.

Or install vercel, the plugin that ships this one along with the rest of its 41 skills, 5 commands, 3 agents, 3 hooks, 1 MCP server.

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/vercel/vercel-plugin/env/github.svg)](https://agentmods.dev/commands/vercel/vercel-plugin/env)

Your own site

<a href="https://agentmods.dev/commands/vercel/vercel-plugin/env"><img src="https://agentmods.dev/badge/commands/vercel/vercel-plugin/env/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.

Your own site · 80×15

<a href="https://agentmods.dev/commands/vercel/vercel-plugin/env"><img src="https://agentmods.dev/badge/commands/vercel/vercel-plugin/env.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 2,672 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 unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.00035	$0.02672
Opus 5.5	$0.00014	$0.01069
Sonnet 5.5	$0.00007	$0.00534
Haiku 4.5	$0.00003	$0.00267

Measured 21d ago against content hash 066a9db49480, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

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 21d 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.

commands/env.md · 290 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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.

21d ago Changed · +15 lines 066a9db49480
28d ago Changed · +11 lines b5fee61f45ca
1mo ago First seen · 264 lines · 35 tokens per session scan A cb1a0174593e

Subscribe to this mod's changes

env is a command published in the GitHub repository vercel/vercel-plugin (308 stars, last pushed today), with no licence file. It adds 35 tokens to every session and 2,672 once invoked, about $0.0001 per session on Opus 5.5. 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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