app_verification

app_verification is a skill for Claude Code, Codex from rome-os/rome. It costs 0 tokens per session (1,407 once invoked), scanned A, original, MIT.

A second-pass check for a newly installed Rome app, using the running app and its local dashboard or API to test the expected behavior.

In plain words
What is it for?
Confirming that an installed app starts, its main user flow works, and its APIs or dashboard behave as expected.
Why use it?
It finds problems that code inspection or the creator's report may miss. The checks use safe probes and do not modify the app.

Skill for Claude CodeCodex

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 skills/rome-os/rome/app_verification
Any agent
npx skills add rome-os/rome --skill app_verification
Clone the repo
git clone --depth 1 https://github.com/rome-os/rome

Made for: Claude Code, Codex.

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 app_verification

README.md
[![agentmods](https://agentmods.dev/badge/skills/rome-os/rome/app_verification.svg)](https://agentmods.dev/skills/rome-os/rome/app_verification)
Your own site
<a href="https://agentmods.dev/skills/rome-os/rome/app_verification"><img src="https://agentmods.dev/badge/skills/rome-os/rome/app_verification.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,407 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 5.1 $0.00000 $0.01407
Opus 5 $0.00000 $0.00704
Sonnet 5 $0.00000 $0.00281
Haiku 4.5 $0.00000 $0.00141

Measured 6d ago against content hash ff6617b31cbf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

app_verification 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 6d 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.

rome_apps/coding/src/skills/app_verification/SKILL.md · 157 lines

How it starts

The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.

App Verification

Use this skill after app creation has finished commit and system:app_management { op: "install", ... }. Your job is to verify the installed app from runtime evidence, not from the creator's memory, assumptions, or unverified claims.

The parent/creator should pass only the verification handoff:

  • appId
  • <app-root> absolute path
  • packed artifact path, normally <app-root>/.rome/artifact (daemon-managed output of a mode: "source" install)
  • dashboard base URL and internal API base URL, if known
  • the user's original intent and the expected happy path
  • any required credentials or external connections already known to be missing
  • safe sample inputs for actions/API calls, if the app needs inputs

If any of those are missing, infer what you can from <app-root> and the local Rome runtime. Ask the parent only when the missing information would make the verification misleading.

Verification contract

You are a verifier, not the author. Default to read-only inspection plus safe runtime probes. Do not edit the app, commit, install, or paper over failures. If you find a defect, report the exact symptom, evidence, and the smallest likely fix area.

Before testing behavior, establish the app shape:

  1. Read <app-root>/app.yaml, .rome_store/rome_store.yaml when present, README.md, and relevant files under src/.
  2. Identify declared surfaces: web, api, actions, agents, skills, hooks, and db.
  3. Confirm the expected behavior from the handoff maps to those surfaces.

Required checks

1. Build and install evidence

From <app-root>:

pnpm build
git status --short
test -d .rome/artifact
test -f .rome/artifact/app.yaml

The build must pass. The working tree should be clean unless the handoff explicitly says verification is happening before the final commit. The packed artifact must exist: a mode: "source" install builds and packs into .rome/artifact before installing, so its presence is evidence the install ran — and its absence means the app was never installed from this source root.

Read the full file on GitHub · 157 lines

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. 6d ago First seen · 157 lines · 0 tokens per session scan A ff6617b31cbf

Subscribe to this mod's changes

app_verification is a skill published in the GitHub repository rome-os/rome (471 stars, last pushed today), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,407 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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