validation-self-audit

validation-self-audit is a skill for Claude Code, Codex from OutlineDriven/odin-claude-plugin. It costs 53 tokens per session (913 once invoked), scanned A, original, Apache-2.0.

A checklist for finding flaws in validation plans and results that may make success look more certain than it is.

In plain words
What is it for?
Use it to review A/B tests, holdout tests, scores, controls, sampling, evaluators, and raw evidence before trusting their conclusions.
Why use it?
It exposes problems such as biased comparisons, dependent evidence, or stopping rules that can make a test self-confirming. It also checks whether the audit itself is independent.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present.

Part of the odin-agent plugin — 46 skills shipped together

Good fit Use it to review A/B tests, holdout tests, scores, controls, sampling, evaluators, and raw evidence before trusting their conclusions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/outlinedriven/odin-claude-plugin/validation-self-audit
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 OutlineDriven/odin-claude-plugin --skill validation-self-audit
Clone the repo
git clone --depth 1 https://github.com/OutlineDriven/odin-claude-plugin

Made for: Claude Code, Codex.

Or install odin-agent, the plugin that ships this one along with the rest of its 46 skills.

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 validation-self-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/validation-self-audit.svg)](https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/validation-self-audit)
Your own site
<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/validation-self-audit"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/validation-self-audit.svg" alt="Measured on agentmods" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 913 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00053 $0.00913
Opus 5 $0.00026 $0.00456
Sonnet 5 $0.00011 $0.00183
Haiku 4.5 $0.00005 $0.00091

Measured 4d ago against content hash 2ed3a9401470, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

validation-self-audit 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 4d 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.

plugins/odin-agent/skills/validation-self-audit/SKILL.md · 42 lines

How it starts

The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Validation self audit

Contract

Field Bound contract
Trigger Before trusting a validation plan or result meant to show whether something worked, such as an A/B test, holdout, or score, or when its result looks too clean or self-confirming.
Authority Read-only: inspect supplied validation design and evidence without changing files, VCS, credentials, paid services, published material, deployments, or remote state.
Side effect None; names only the independence failures that fire and the corresponding fixes.
Done Every firing pattern is named with an independence fix, patterns 3–5 are applied to the audit itself, and one root failure is identified instead of returning a laundry list.

Inputs

  • The validation claim, design, and observed result. Required.
  • The intervention, baseline or control, sampling method, evaluator, metric, stopping rule, and raw evidence. Supply every item that exists; identify missing items rather than inventing them.
  • An independent auditor's assessment. Optional; use it as the N=1 auditor check when available.

Procedure

  1. Bound the claim being validated, the intervention, the comparison, the measured outcome, and the decision the result is meant to support. Done when: the claim, intervention, comparison, outcome, and decision are all bounded.
  2. Trace independence through eight patterns: shared data between construction and evaluation; shared implementation between intervention and control; evaluator awareness of the expected result; metric selection after observing outcomes; optional stopping or selective reporting; contamination between treatment and holdout; dependence between observations presented as independent; and a benchmark or score that restates the system's own assumptions. Done when: every pattern is classified as firing, not firing, or unclassifiable.
  3. Report only patterns supported by supplied evidence. For each supported pattern, name the evidence and prescribe the smallest independence fix: a fresh holdout, separately implemented control, blinded evaluator, preregistered metric and stopping rule, contamination barrier, correct unit of analysis, or external ground truth. Done when: every firing pattern has evidence and a prescribed fix.
  4. Apply patterns 3–5 to this audit: check whether the auditor knows the desired verdict, chose criteria after seeing the result, or stopped after finding a convenient explanation. If any fires, mark the audit non-independent and prescribe its fix. Done when: the self-audit is complete and any non-independence is marked.
  5. When an independent assessment is available, compare it as an N=1 auditor check. Treat disagreement as evidence requiring resolution, not a majority vote. Done when: the N=1 comparison is completed or noted as unavailable.
  6. Identify the single root independence failure that best explains the supported findings. Keep secondary patterns only when they require a distinct fix. Done when: one root failure is identified.
  7. Stop with a blocked result when evidence needed to distinguish firing from non-firing patterns is unavailable; do not widen scope or infer clean validation from missing evidence. Done when: the blocked result names the exact missing artifact and unclassifiable patterns.

Read the full file on GitHub · 42 lines

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. 4d ago First seen · 42 lines · 53 tokens per session scan A 2ed3a9401470

Subscribe to this mod's changes

validation-self-audit is a skill published in the GitHub repository OutlineDriven/odin-claude-plugin (35 stars, last pushed yesterday), licensed Apache-2.0. It adds 53 tokens to every session and 913 once invoked, about $0.0003 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 2026-09-04.

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