audit-numeric-precision

audit-numeric-precision is a skill for Claude Code, Codex from danygiguere/audit-skills. It costs 49 tokens per session (122 once invoked), scanned A, original, MIT.

A checklist for finding errors in numeric calculations, especially calculations involving money, totals, taxes, or splits.

In plain words
What is it for?
Use it to review code that calculates prices, payments, taxes, balances, allocations, or other financial values.
Why use it?
It helps catch unsafe floating-point currency math, incorrect rounding, overflow, leftover remainders, and mismatched units or currencies.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it to review code that calculates prices, payments, taxes, balances, allocations, or other financial values.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/danygiguere/audit-skills/audit-numeric-precision
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 danygiguere/audit-skills --skill audit-numeric-precision
Clone the repo
git clone --depth 1 https://github.com/danygiguere/audit-skills

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 audit-numeric-precision

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/danygiguere/audit-skills/audit-numeric-precision"><img src="https://agentmods.dev/badge/skills/danygiguere/audit-skills/audit-numeric-precision.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 122 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 $0.00049 $0.00122
Opus 5 $0.00024 $0.00061
Sonnet 5 $0.00010 $0.00024
Haiku 4.5 $0.00005 $0.00012

Measured 10d ago against content hash bb4906d1cbec, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

audit-numeric-precision 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 10d 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/audit-numeric-precision/SKILL.md · 10 lines

What it actually says

Read ../audit/references/correctness/numeric-precision.md and apply its checklist to the code the user specified (or the current diff if none was given). Verify each candidate with ../audit/references/methodology/verify.md before reporting. Report findings with severity and file:line references.

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. 10d ago First seen · 10 lines · 49 tokens per session scan A bb4906d1cbec

Subscribe to this mod's changes

audit-numeric-precision is a skill published in the GitHub repository danygiguere/audit-skills (5 stars, last pushed 2mo ago), licensed MIT. It adds 49 tokens to every session and 122 once invoked, about $0.0002 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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