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Input validation and API contract checklist. Use when reviewing request validation, DTOs, public endpoints, types, bounds, or unknown-field handling.
Codex 또는 Claude로 설치 이 Prompt를 복사해 Codex, Claude 또는 다른 어시스턴트에 붙여 넣으면 Skill 페이지를 검토하고 설치를 진행할 수 있습니다.
SOC 직업 분류 기준
| name | audit-api-validation |
| description | Input validation and API contract checklist. Use when reviewing request validation, DTOs, public endpoints, types, bounds, or unknown-field handling. |
Read ../audit/references/input-api-dependency/api-contract-validation.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.
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.
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.
