Tools: add prompt-injection-shield and vector-poison-score

[MukundaKatta]

Adding two zero-dependency JavaScript libraries for the Tools section:

• prompt-injection-shield scans untrusted retrieved text for prompt-injection patterns (instruction overrides, system-prompt impersonation, tool-call hijack, URL-based exfil, secret patterns) and returns typed risk reasons so callers can log, gate, or strip lines before they hit the prompt.
• vector-poison-score scores retrieved RAG chunks for oversized payloads, secret-exfiltration patterns, suspicious link clusters, and mixed-language anomalies. Returns a 0..1 poison score with explicit signals.

Both are MIT, npm-published as @mukundakatta/prompt-injection-shield and @mukundakatta/vector-poison-score. Backed by a preprint in the small-rule guardrails space: https://doi.org/10.5281/zenodo.20057056

Inserted alphabetically near Open-Prompt-Injection.

Summary by CodeRabbit

릴리스 노트

• 문서
  • README 파일의 Tools 섹션이 업데이트되었습니다. prompt-injection-shield와 vector-poison-score라는 두 개의 새로운 도구가 기존 도구 목록에 추가되었습니다. 이번 업데이트를 통해 사용자들이 활용할 수 있는 도구의 개수가 증가하였으며, 각 도구가 제공하는 기능의 다양성이 더욱 풍부해졌습니다.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: cbd8ec22-e109-4893-9bd5-4f8a95afa144

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Reviewing files that changed from the base of the PR and between c8ae124 and 5c5ded0.

📒 Files selected for processing (1)

• README.md

📜 Recent review details

🔇 Additional comments (1)

README.md (1)

120-121: 좋은 추가입니다.

두 항목 모두 도구 목적이 명확하고, Tools 섹션 문맥에 자연스럽게 맞습니다. README 품질 관점에서 문제 없어 보입니다.

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개요

README 파일의 "Tools" 섹션에 prompt-injection-shield와 vector-poison-score 두 항목이 추가되었습니다. 추가적인 코드 변경 사항은 없습니다.

변경 사항

문서 업데이트

계층 / 파일(s)	요약
Tools 섹션 확장 README.md	"Tools" 섹션에 prompt-injection-shield와 vector-poison-score 항목 2개가 Open-Prompt-Injection 항목 다음에 추가되었습니다.

예상 코드 리뷰 노력

🎯 1 (사소함) | ⏱️ ~2분

🚥 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	The title accurately summarizes the main change—adding two new tools (prompt-injection-shield and vector-poison-score) to the Tools section of the README.
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.

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⚠️ This pull request might be slop. It has been flagged by CodeRabbit slop detection and should be reviewed carefully.