monorepo: Skill for Codex

.agents/skills/create-verification-skill/SKILL.md

create-verification-skill is a skill for Codex from lootlog/monorepo. It costs 51 tokens per session (392 once invoked), scanned A, original, MIT.

A method for creating a repeatable way to verify one running application through real user paths. It documents how to check the app, drive it through a browser, HTTP request, command-line tool, or integration test, and capture evidence.

In plain words
What is it for?
Use it when an app lacks a documented workflow for checking routes, requests, commands, visible results, side effects, authentication, test data, and cleanup.
Why use it?
It removes guesswork from checking whether an application actually works. Repeatable steps and recorded results make later verification easier.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents); mentions Codex.

This is lootlog/monorepo's own configuration. It tells Codex how to work on monorepo itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything monorepo configures →

Reuse

Borrowing it

Nothing to install: this file belongs to lootlog/monorepo. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/lootlog/monorepo/main/.agents/skills/create-verification-skill/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/lootlog/monorepo

Made for: 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 create-verification-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/lootlog/monorepo/create-verification-skill/github.svg)](https://agentmods.dev/skills/lootlog/monorepo/create-verification-skill)
Your own site
<a href="https://agentmods.dev/skills/lootlog/monorepo/create-verification-skill"><img src="https://agentmods.dev/badge/skills/lootlog/monorepo/create-verification-skill/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.

agentmods 80×15 button for create-verification-skill

Your own site · 80×15
<a href="https://agentmods.dev/skills/lootlog/monorepo/create-verification-skill"><img src="https://agentmods.dev/badge/skills/lootlog/monorepo/create-verification-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 392 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 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 $0.00051 $0.00392
Opus 5.5 $0.00020 $0.00157
Sonnet 5.5 $0.00010 $0.00078
Haiku 4.5 $0.00005 $0.00039

Measured 1mo ago against content hash 3627d4dea257, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

create-verification-skill 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 1mo 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.

.agents/skills/create-verification-skill/SKILL.md · 37 lines

What it actually says

Create a verification skill

Create .agents/skills/verify-<app>/ for one application at a time.

Interview the repository

Determine from code and configuration:

  • the user-facing surface;
  • the existing development command and expected URL, port, or socket;
  • stable ways to drive it, preferring current browser, HTTP, CLI, or test harnesses;
  • observable evidence and side effects;
  • authentication, seed-data, environment, and isolation constraints.

Do not start the application. This repository assumes it already runs. Ask only for information that code, configuration, process state, and the visible application cannot provide.

Generate

Use the client's available skill-creation mechanism. In Codex, use the system skill-creator initializer. When no initializer exists, create the same SKILL.md and optional agents/openai.yaml structure directly. The generated skill must contain:

  • Doctor: a read-only check that confirms the expected instance and version are reachable.
  • Drive: exact selectors, routes, commands, or requests from this repository.
  • Evidence: the action, resulting UI or response, and relevant side effects.
  • Cleanup: only resources created by the verification run. Never kill processes by name.
  • Feature map: the top three to five user-facing flows, each with entry path and observable success.

Store temporary evidence in an ignored location. Do not commit screenshots, credentials, tokens, or personal data.

Prove the skill

Validate the skill folder, run Doctor, drive one mapped feature against the existing instance, capture evidence, and execute cleanup. A generated skill that has not completed this loop is a draft.

Files

What ships with it

1 file 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.

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. 1mo ago First seen · 37 lines · 51 tokens per session scan A 3627d4dea257

Subscribe to this mod's changes

create-verification-skill is a skill published in the GitHub repository lootlog/monorepo (29 stars, last pushed yesterday), licensed MIT. It adds 51 tokens to every session and 392 once invoked, about $0.0002 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 2026-08-31.

Related

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