Varlock is a configuration system for environment-variable files that gives coding agents schemas and validation rules without revealing secret values. Developers use it to manage, validate, load, and protect application configuration across environments.
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/dmno-dev/varlock/varlock-agent-readinessnpx skills add dmno-dev/varlock --skill varlock-agent-readinessgit clone --depth 1 https://github.com/dmno-dev/varlockWrote 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/dmno-dev/varlock/varlock-agent-readiness)<a href="https://agentmods.dev/skills/dmno-dev/varlock/varlock-agent-readiness"><img src="https://agentmods.dev/badge/skills/dmno-dev/varlock/varlock-agent-readiness.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 | $0.00000 | $0.00309 |
| Opus 5 | $0.00000 | $0.00154 |
| Sonnet 5 | $0.00000 | $0.00062 |
| Haiku 4.5 | $0.00000 | $0.00031 |
Grade A, and why
varlock-agent-readiness 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.
What it actually says
Varlock Agent Discovery
Use this skill to discover machine-readable metadata published by varlock.dev.
Discovery locations
- Docs index for agents:
https://varlock.dev/llms.txt(topic bundles are linked from it under/_llms-txt/; full and abridged dumps at/llms-full.txtand/llms-small.txt) - AI catalog (ARD manifest):
https://varlock.dev/.well-known/ai-catalog.json - API Catalog (RFC 9727 linkset):
https://varlock.dev/.well-known/api-catalog - MCP Server Card:
https://varlock.dev/.well-known/mcp/server-card.json(aliases:/.well-known/mcp.json,/.well-known/mcp/server-cards.json) - Skills index:
https://varlock.dev/.well-known/agent-skills/index.json - Sitemap:
https://varlock.dev/sitemap-index.xml
Guidance
- Start from
llms.txtfor a summary of what varlock is and when to use it, then follow the topic bundle you need. - Start from the skills index and verify digest integrity before loading a SKILL.md.
- Follow API catalog relations to find service documentation and descriptors.
- Use Link response headers on the homepage for bootstrap discovery.
- Any docs page returns markdown when requested with
Accept: text/markdown. Missing paths return a 404 with a short markdown body listing recovery links.
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.
- 5d ago First seen · 21 lines · 0 tokens per session scan A 3c5f4efde9d8
varlock-agent-readiness is a skill published in the GitHub repository dmno-dev/varlock (4,251 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 309 tokens. 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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