🛡️ Sentinel: [MEDIUM] Fix input validation missing in main functions

[seonghobae]

Severity: MEDIUM
Vulnerability: Missing argument validation in exported vuongtest() and icci() functions allows invalid inputs (e.g. vectors instead of scalars) to bypass initial checks, which leads to raw internal R errors deep inside the execution logic (e.g. "the condition has length > 1"). This could leak the internal execution context and stack traces.
Impact: Attackers or malformed scripts can trigger unexpected application state and deduce internal details through raw error tracebacks.
Fix: Added strict length and type validation checks for the nested, adj, and conf.level arguments at the beginning of the functions, using stop(..., call. = FALSE) to fail securely and hide the stack trace.
Verification: Verified locally by running test_validation_fix.R with deliberately malformed arguments and observing the expected safe error message instead of an internal crash. Passed all existing R package tests.

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PR created automatically by Jules for task 16976398977829694673 started by @seonghobae

Summary by CodeRabbit

• 버그 수정

  • icci()의 신뢰수준이 단일 숫자이며 0과 1 사이인지 검증합니다.
  • vuongtest()의 주요 옵션이 단일 값이고 허용된 값인지 확인합니다.
  • 잘못된 입력에는 명확한 오류를 표시합니다.

• 문서

  • 보안 관련 입력 검증 지침을 업데이트했습니다.

[google-labs-jules]

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No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 505b1ea7-0d6c-40e1-b461-43d5e51f13ea

📥 Commits

Reviewing files that changed from the base of the PR and between 807e940 and e2ede99.

📒 Files selected for processing (3)

• .jules/sentinel.md
• R/icci.R
• R/vuongtest.R

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📝 Walkthrough

Walkthrough

icci()와 vuongtest()에 최상위 인자 검증이 추가되었습니다. 잘못된 입력은 호출자 프레임 없이 오류를 발생시킵니다. 관련 보안 학습 항목도 문서화되었습니다.

Changes

입력 검증

Layer / File(s)	Summary
공개 함수 인자 검증 R/icci.R, R/vuongtest.R, .jules/sentinel.md	icci()는 conf.level이 단일 숫자이고 0과 1 사이인지 검증합니다. vuongtest()는 nested와 adj의 형식과 허용값을 검증합니다. 인자 검증과 stop(msg, call. = FALSE) 사용 요구사항을 문서화했습니다.

Estimated code review effort: 2 (Simple) | ~5 minutes

Merge Risk: ⚪ Minimal · up to e2ede

The PR adds localized input validation to prevent malformed arguments from reaching internal execution errors; no actionable merge-blocking risk remains after normal checks and review.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	제목은 내보낸 주요 함수의 누락된 입력 검증을 수정하는 변경 사항을 명확하고 간결하게 설명합니다.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch sentinel-argument-validation-16976398977829694673

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