aoa-verification

aoa-verification is a skill for Codex from 8Dionysus/aoa-skills. It costs 86 tokens per session (856 once invoked), scanned A, original, Apache-2.0.

A workflow for turning one stable technical behavior into limited, meaningful evidence through a contract check, coverage review, or property check.

In plain words
What is it for?
Use it to define checks across an interface or data handoff, audit what current checks actually cover, or express a broad rule after manual examples establish its meaning.
Why use it?
It helps ensure that a passing check supports a clearly stated claim instead of producing a green result with no useful meaning.

Skill for Codex

Written for Codex: agents/openai.yaml present.

Good fit Use it to define checks across an interface or data handoff, audit what current checks actually cover, or express a broad rule after manual examples establish its meaning.

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Install with agentmods
npx agentmods add skills/8dionysus/aoa-skills/aoa-verification
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 8Dionysus/aoa-skills --skill aoa-verification
Clone the repo
git clone --depth 1 https://github.com/8Dionysus/aoa-skills

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 aoa-verification

README.md
[![agentmods](https://agentmods.dev/badge/skills/8dionysus/aoa-skills/aoa-verification/github.svg)](https://agentmods.dev/skills/8dionysus/aoa-skills/aoa-verification)
Your own site
<a href="https://agentmods.dev/skills/8dionysus/aoa-skills/aoa-verification"><img src="https://agentmods.dev/badge/skills/8dionysus/aoa-skills/aoa-verification/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 aoa-verification

Your own site · 80×15
<a href="https://agentmods.dev/skills/8dionysus/aoa-skills/aoa-verification"><img src="https://agentmods.dev/badge/skills/8dionysus/aoa-skills/aoa-verification.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 856 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 $0.00086 $0.00856
Opus 5 $0.00043 $0.00428
Sonnet 5 $0.00017 $0.00171
Haiku 4.5 $0.00009 $0.00086

Measured 11d ago against content hash 77575089f4e3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

aoa-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 11d 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.

skills/core/engineering/aoa-verification/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

aoa-verification

Intent

Start from owner meaning and observed behavior, then choose the smallest evidence form whose green result has an explicit claim limit.

Trigger boundary

Use this skill when:

  • a stable producer-consumer seam, an important invariant, or a property across many inputs/states needs evidence that can reveal a meaningful break

Do not use this skill when:

  • behavior or ownership is undefined, the change is private, the request is a generic test strategy, or automation would exist only to produce green status

Inputs

  • owner rule, system/boundary under review, named consumers where relevant
  • manual cases or failures, current checks, and available oracle

Outputs

  • exactly one typed mode result: evidence package, gaps, smallest authorized durable check or no-check decision, claim limit, and termination

Procedure

  1. Read references/contract.yaml and choose exactly one mode:

    Mode Select when Required procedure
    contract A named consumer relies on a stable ABI, receipt, schema, tool result, or handoff. references/contract.md
    coverage-audit Checks exist and the question is what stable invariant they truly constrain. references/coverage-audit.md
    property Correctness must hold across many inputs or states. references/property.md
  2. Read the selected reference completely. Do not load unrelated mode procedures.

  3. Read the authoritative owner rule before the subject implementation, checks, examples, or generated views. Use exact supplied paths directly; search only for a missing required input, not for ritual workspace orientation. Exercise expected, rejected, and motivating failure cases manually and state the oracle. Do not collect repository-wide inventories, hashes, or status unless the claim or effect boundary needs them.

  4. When the exact evaluation surface is unknown or must be selected/applied, use a task-local DAG: aoa-eval.select -> aoa-eval.apply -> the chosen verification mode. A named check may be run directly as evidence inside a verification task; cross-surface discovery and application remain aoa-eval responsibilities.

  5. Create durable automation only after manual evidence establishes a repeated or owner-declared long-lived rule and the active task authorizes the write. Remove session-only probes after learning.

Read the full file on GitHub · 91 lines

Files

What ships with it

5 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.

  1. 11d ago First seen · 91 lines · 86 tokens per session scan A 77575089f4e3

Subscribe to this mod's changes

aoa-verification is a skill published in the GitHub repository 8Dionysus/aoa-skills (4 stars, last pushed 3d ago), licensed Apache-2.0. It adds 86 tokens to every session and 856 once invoked, about $0.0004 per session on Opus 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.

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