resend@1.0.5
VERIFIEDPublisher claims: "Agent skills for working with Resend to send and receive emails — email API integration, agent inbox, CLI, React Email components, and deliverability best practices. Includes the Resend MCP server." Observed in sandbox: no network, touches nothing outside the project, writes no memory.
Registry Claude Code plugin marketplacePublisher resend · joined 0 days agoInstalls 0Last detonated 2 h ago
Is [email protected] safe to install?
KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario) on 2026-10-27 and scored it 81/100 (Verified). It did what it claims and nothing else we could detect: no undeclared network egress, no credential reads, no persistent instruction writes. Summary: no network, touches nothing outside the project, writes no memory.
Behavior trace
Honeypot run · 0 s · 1 scenarios · 0 deviationst+CategoryObserved action
0.0sprocessno install scripts in bundle
0.0sprocessscript backend runs setup only
0.0sprocessscript backend runs setup only
Static findings
LOW
Unpinned dependencyskills/react-email/SKILL.md:376 · Unpinned dependencyFix: Pin the exact version (`[email protected]`, `==1.2.3`) so every install gets the bytes that were reviewed.
AST06MEDIUM
File type combined with upload actionskills/agent-email-inbox/SKILL.md:375 · File type combined with upload action — agent may exfiltrate local data filesFix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07HIGH
Persistence: instructs the agent to auto-load this skill in future sessionsskills/agent-email-inbox/SKILL.md:3 · Persistence: instructs the agent to auto-load this skill in future sessionsFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01MEDIUM
npx invocation of non-well-known packageskills/react-email/SKILL.md:33 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.
AST06HIGH
Account verification phishing language detectedskills/email-best-practices/references/email-capture.md:111 · Account verification phishing language detectedFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01HIGH
False authorization claimskill-evals/resend/evals.json:308 · False authorization claim — impersonating privileged roleFix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.
AST01HIGH
Access to sensitive file pathsskill-evals/agent-email-inbox/evals.json:43 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05HIGH
Persistence: instructs the agent to auto-load this skill in future sessionsskills/resend/SKILL.md:3 · Persistence: instructs the agent to auto-load this skill in future sessionsFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01CRITICAL
Prompt injectionskills/agent-email-inbox/references/security-levels.md:85 · Prompt injection — explicit attempt to bypass safety measuresFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01MEDIUM
File type combined with upload actionskills/agent-email-inbox/SKILL.md:232 · File type combined with upload action — agent may exfiltrate local data filesFix: Remove the call, or declare the host in frontmatter and explain in the README what is sent and why.
AST07HIGH
Access to sensitive file pathsskill-evals/agent-email-inbox/evals.json:47 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05HIGH
Account verification phishing language detectedskills/email-best-practices/references/transactional-emails.md:20 · Account verification phishing language detectedFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01HIGH
Access to sensitive file pathsskills/agent-email-inbox/SKILL.md:125 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05HIGH
Persistence: instructs the agent to auto-load this skill in future sessionsskills/resend-cli/SKILL.md:8 · Persistence: instructs the agent to auto-load this skill in future sessionsFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01HIGH
Access to sensitive file pathsskill-evals/agent-email-inbox/evals.json:42 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05HIGH
Account verification phishing language detectedskills/react-email/SKILL.md:97 · Account verification phishing language detectedFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01