Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add AppsVortex/arness/plugin install arn-infraWrote 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/appsvortex/arness/arn-infra-verify)<a href="https://agentmods.dev/skills/appsvortex/arness/arn-infra-verify"><img src="https://agentmods.dev/badge/skills/appsvortex/arness/arn-infra-verify/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.
<a href="https://agentmods.dev/skills/appsvortex/arness/arn-infra-verify"><img src="https://agentmods.dev/badge/skills/appsvortex/arness/arn-infra-verify.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00161 | $0.02933 |
| Opus 5.5 | $0.00064 | $0.01173 |
| Sonnet 5.5 | $0.00032 | $0.00587 |
| Haiku 4.5 | $0.00016 | $0.00293 |
Grade A, and why
arn-infra-verify scanned grade A with 1 finding 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 yesterday.
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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl: [available/unavailable] How it starts
The opening of the file, as written. The whole thing — 293 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Arness Infra Verify
Run post-deployment verification against a target environment to confirm that infrastructure is healthy, endpoints are reachable, DNS resolves correctly, SSL certificates are valid, and resource state matches the expected topology. Updates issue labels and environments.md with verification results.
This skill invokes the arn-infra-verifier agent to perform the actual health checks and produces a structured verification report.
Prerequisites
Read ## Arness from the project's CLAUDE.md. If no ## Arness section exists or Arness Infra fields are missing, inform the user: "Arness Infra is not configured for this project yet. Run /arn-infra-wizard to get started — it will set everything up automatically." Do not proceed without it.
Check the Deferred field. If Deferred: yes, inform the user: "Infrastructure is in deferred mode. Verification is not available until infrastructure is fully configured. Run /arn-infra-assess to un-defer." Stop.
Extract:
- Experience level -- derived from user profile. Read
~/.arness/user-profile.yaml(or.claude/arness-profile.local.mdif it exists — project override takes precedence). Apply the experience derivation mapping from${CLAUDE_PLUGIN_ROOT}/skills/arn-infra-ensure-config/references/experience-derivation.md. If no profile exists, check for legacyExperience levelin## Arnessas fallback. - Environments -- environment names for target selection
- Environments config -- path to
environments.mdfor deployment state - Resource manifest -- path to
active-resources.jsonfor expected resource state - Tooling manifest -- path to
tooling-manifest.jsonfor available CLIs - Providers -- which cloud providers are configured
- Providers config -- path to
providers.md - Platform -- for issue label management
- Issue tracker -- for label updates and issue lifecycle
- Infra specs directory -- from
## Arnessconfig, for locating handoff files (default:.arness/infra-specs) - Reference overrides -- path to local reference override directory (for evolving reference reads)
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- yesterday First seen · 293 lines · 161 tokens per session scan A c2c58c2e132d
arn-infra-verify is a skill published in the GitHub repository AppsVortex/arness (33 stars, last pushed yesterday), licensed MIT. It adds 161 tokens to every session and 2,933 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-25.
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