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Numeric and money precision checklist. Use when code computes money, totals, taxes, or splits — float used for currency, ad hoc rounding, integer overflow, division remainders, or unit/currency mismatches.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Full security, correctness, and operability audit of code. Use when reviewing a diff, endpoint, or feature for vulnerabilities or bugs without a specific topic in mind — security review, audit, code review for safety, "check this for issues".
Inbound token and webhook verification checklist. Use when code verifies JWTs, API keys, signed URLs, or webhook signatures — decode-without-verify, alg confusion, missing exp/aud/iss checks, kid/JWKS handling, HMAC over raw body, replay windows.
Insecure deserialization checklist. Use when untrusted bytes (request bodies, cookies, sessions, cache entries, queue messages, uploaded files) are deserialized — native object deserializers, polymorphic JSON/XML typing, unsafe YAML, or missing type allowlists.
Time, timezone, and clock-correctness checklist. Use when code stores or computes timestamps, durations, timeouts, or expiry — naive vs aware datetimes, server-local now(), wall-clock for elapsed time, DST and calendar math, cross-zone comparisons.
Caching correctness checklist. Use when reviewing caches — keys missing a user/tenant dimension, stale data after writes, cache stampede, cached errors, or per-user responses landing in a shared or CDN cache.
Query cardinality checklist. Use when an UPDATE or DELETE keys on a non-unique column (e.g. WHERE name = ?) and may hit the wrong rows, when findOne/.single()/.first() runs on a non-unique field, or when a column is treated as unique in app code without a database UNIQUE constraint.
| name | audit-numeric-precision |
| description | Numeric and money precision checklist. Use when code computes money, totals, taxes, or splits — float used for currency, ad hoc rounding, integer overflow, division remainders, or unit/currency mismatches. |
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.
