A verification procedure for checking whether code meets its specification and is ready for production, meaning suitable for real users and operations.

Use it to run the project’s test and security checks, record what they prove, and evaluate each example or acceptance criterion in the specification.

It prevents readiness claims based only on descriptions by requiring actual commands and their results for each checked condition.

ai-verify — Skill for Claude Code and Codex by arcasilesgroup

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.

Any agent

npx skills add arcasilesgroup/ai-engineering --skill ai-verify

Clone the repo

git clone --depth 1 https://github.com/arcasilesgroup/ai-engineering

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/arcasilesgroup/ai-engineering/ai-verify/github.svg)](https://agentmods.dev/skills/arcasilesgroup/ai-engineering/ai-verify)

Your own site

<a href="https://agentmods.dev/skills/arcasilesgroup/ai-engineering/ai-verify"><img src="https://agentmods.dev/badge/skills/arcasilesgroup/ai-engineering/ai-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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/arcasilesgroup/ai-engineering/ai-verify"><img src="https://agentmods.dev/badge/skills/arcasilesgroup/ai-engineering/ai-verify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,014 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. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00087	$0.01014
Opus 5.5	$0.00035	$0.00406
Sonnet 5.5	$0.00017	$0.00203
Haiku 4.5	$0.00009	$0.00101

Measured 27d ago against content hash a681767829e0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ai-verify 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 27d ago.

The scan reads SKILL.md. This mod also ships 8 executable files (evals/fixtures/node-web/src/api/orders.ts, evals/fixtures/node-web/src/auth/session.ts, evals/fixtures/node-web/src/db/queries.ts, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/ai-verify/SKILL.md · 55 lines

How it starts

The opening of the file, as written. The whole thing — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ai-verify — verification in three tiers (Graph Engineering)

Three ways to verify, depending on who fires them: skills you run on purpose, skills that fire themselves mid-workflow, and a chain of review lanes. The chain's router decides which lanes run from the evidence in the diff, never from its size.

Tier 1 — standalone (you run it on purpose)

Per-requirement verdict against what was actually asked, with a list of gaps → tiers/1-standalone/verify-feature/SKILL.md
Extract the requirements from the conversation into numbered, falsifiable claims → tiers/1-standalone/spec-extract/SKILL.md

Tier 2 — embedded (fires by itself, mid-workflow)

Browser verification of the finished feature + blast radius of the routes that depend on the change → tiers/2-embedded/feature-verify/SKILL.md, with blast_radius.ts, setup_harness.sh and references/
A second opinion from a fresh model instance with no visibility into your reasoning → tiers/2-embedded/second-opinion/SKILL.md

Tier 3 — chain (review lanes picked by evidence)

Router that picks lanes, estimates cost, and executes → tiers/3-chain/review-router/SKILL.md
Lanes: code-audit · security-audit · a11y-audit · perf-audit · design-check · build-check
Merge of all lanes into one deduplicated report → full-review; scope and diff conventions → CONVENTIONS.md

Read the full file on GitHub · 55 lines

Files

What ships with it

29 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.

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.

27d ago Changed a681767829e0
1mo ago Changed · +2 lines 5b49f34a32b2
1mo ago Changed · -22 lines · -75 tokens per session 29d30edd0673
1mo ago First seen · 75 lines · 162 tokens per session scan A 36c05de1f3e0

Subscribe to this mod's changes

ai-verify is a skill published in the GitHub repository arcasilesgroup/ai-engineering (61 stars, last pushed 5d ago), licensed Apache-2.0. It adds 87 tokens to every session and 1,014 once invoked, about $0.0003 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 2026-08-30.

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