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 skills/dhaupin/vant/vant-skill-environmentnpx skills add dhaupin/vant --skill vant-skill-environmentgit clone --depth 1 https://github.com/dhaupin/vantWrote 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/dhaupin/vant/vant-skill-environment)<a href="https://agentmods.dev/skills/dhaupin/vant/vant-skill-environment"><img src="https://agentmods.dev/badge/skills/dhaupin/vant/vant-skill-environment.svg" alt="Measured on agentmods" 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 | $0.00005 | $0.00223 |
| Opus 5 | $0.00003 | $0.00112 |
| Sonnet 5 | $0.00001 | $0.00045 |
| Haiku 4.5 | $0.00001 | $0.00022 |
Grade A, and why
environment 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 4d 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.
What it actually says
Environment
Environment variables.
When To Use
- Config secrets
- API keys
- Environment-specific settings
What To Do
1. Files
| File | What |
|---|---|
| .env | Local (gitignore) |
| .env.local | Local override |
| .env.production | Production |
2. Syntax
API_KEY=secret123
DATABASE_URL=postgres://localhost
DEBUG=true
3. Load
// Node
require('dotenv').config()
process.env.API_KEY
# Python
from dotenv import load_dotenv
load_dotenv()
os.environ['API_KEY']
4. Best Practice
- Never commit secrets
- Use different values per env
- Validate required vars
Role: Environment Manager
Input: .env files
Output: Config
Secrets.
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.
- 4d ago First seen · 67 lines · 5 tokens per session scan A 3708427c4134
environment is a skill published in the GitHub repository dhaupin/vant (9 stars, last pushed 5d ago), licensed MIT. It adds 5 tokens to every session and 223 once invoked, about $0.0000 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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