currency-audit

currency-audit is a skill for Claude Code, Codex from fabioc-aloha/Alex_Skill_Mall. It costs 24 tokens per session (2,566 once invoked), scanned A, original, MIT.

A review procedure for checking whether a project guidance file is current, internally consistent, and factually accurate. It includes checking outside sources, missing information, evidence quality, and outdated advice.

In plain words
What is it for?
For auditing guidance files, verifying their claims, checking dates, and deciding when they can be marked as reviewed.
Why use it?
It helps prevent teams from approving documentation that is technically valid in places but incomplete, contradictory, or no longer correct.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node scripts/brain-qa.cjs.

Good fit For auditing guidance files, verifying their claims, checking dates, and deciding when they can be marked as reviewed.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/fabioc-aloha/Alex_Skill_Mall
agentmods
npx agentmods add skills/fabioc-aloha/alex_skill_mall/currency-audit

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 currency-audit

README.md
[![agentmods](https://agentmods.dev/badge/skills/fabioc-aloha/alex_skill_mall/currency-audit/github.svg)](https://agentmods.dev/skills/fabioc-aloha/alex_skill_mall/currency-audit)
Your own site
<a href="https://agentmods.dev/skills/fabioc-aloha/alex_skill_mall/currency-audit"><img src="https://agentmods.dev/badge/skills/fabioc-aloha/alex_skill_mall/currency-audit/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 currency-audit

Your own site · 80×15
<a href="https://agentmods.dev/skills/fabioc-aloha/alex_skill_mall/currency-audit"><img src="https://agentmods.dev/badge/skills/fabioc-aloha/alex_skill_mall/currency-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 24 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,566 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 $0.00024 $0.02566
Opus 5 $0.00012 $0.01283
Sonnet 5 $0.00005 $0.00513
Haiku 4.5 $0.00002 $0.00257

Measured 11d ago against content hash c1d8657a05d7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

currency-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 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.

.github/skills/currency-audit/SKILL.md · 225 lines

How it starts

The opening of the file, as written. The whole thing — 225 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Currency Audit

Full assessment: external freshness + internal consistency + semantic accuracy. Stamp only when all pass.

brain-qa.cjs checks the date mechanically (the lastReviewed field). This skill defines the full review that earns that date. A re-stamp means both "content matches external reality" AND "content is internally consistent."


Critical Thinking Discipline

Every audit item must pass through critical thinking — not just mechanical verification. Apply these disciplines throughout:

Discipline Application to Currency Audit
Alternative hypotheses "This API exists" isn't enough — is the usage correct? Could the documented pattern be outdated even if the API isn't?
Missing data What's NOT in the file that should be? Missing caveats, undocumented prerequisites, absent error handling?
Evidence quality Is the file's advice based on official docs, or a single blog post from 2021?
Self-report skepticism "Best practice" claims — verified against what source? "Works on current versions" — actually tested?
Bias detection Anchoring on the file's current content. Challenge: would you write this the same way from scratch today?
Falsifiability What would prove this advice wrong? If nothing could, the claim may be unfalsifiable hand-waving
Materiality gate If this item were stale, would it cause real harm? Prioritize fixes that affect decisions over cosmetic accuracy

The key question at every checklist item: "Am I verifying this is correct, or am I assuming it's correct because it looks plausible?"


When to Use

  • brain-qa shows files with expired or missing lastReviewed dates
  • Before a release that ships brain files to heirs
  • On a scheduled cadence (target: full audit every 90 days)
  • After a major external change (new API version, deprecated pattern, VS Code update)

Quick Reference

Step Action Outcome
Triage Run node scripts/brain-qa.cjs, read the stale-file output Ordered work list
Research Check latest docs, changelogs, releases for the file's domain Delta list
Compare Diff current content against latest practices Stale advice identified
Audit Check terminology, cross-references, claims, process logic Internal consistency verified
Update Fix stale content, wrong terms, broken references, contradictions Full assessment complete
Stamp Set lastReviewed: YYYY-MM-DD to today in frontmatter Pass restored
Verify Re-run brain-qa, confirm file passes Clean output

Read the full file on GitHub · 225 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. 11d ago First seen · 225 lines · 24 tokens per session scan A c1d8657a05d7

Subscribe to this mod's changes

currency-audit is a skill published in the GitHub repository fabioc-aloha/Alex_Skill_Mall (4 stars, last pushed today), licensed MIT. It adds 24 tokens to every session and 2,566 once invoked, about $0.0001 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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