Is sign-safe@0.6.4 safe to install?

sign-safe@0.6.4

VERIFIED

Publisher claims: "v0.6 signing-time gate for Solana: decode any base64 tx offline, classify 37 danger primitives + Native Stake + bounded ATA/Memo recognition + a 14-program DeFi/NFT clear-signing registry, resolve ALTs and clear-sign Squads proposals with --rpc, optionall" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher lrafasouza · joined 7 days agoInstalls 429Last detonated 7d ago

$claude mcp add sign-safe -- npx -y sign-safe

Watch Report an issue

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (1 scenario) on 2026-10-27 and scored it 82/100 (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 deviations

t+CategoryObserved action

0.0sprocessno install scripts in bundle

0.0sprocessscript backend runs setup only

Static findings

CRITICAL

Rule modification attemptskill/rules/governance-signing.md:56 · Rule modification attempt — overwriting existing instructionsFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.

AST01

MEDIUM

npx invocation of non-well-known packagedist/src/cli.js:289 · npx invocation of non-well-known package — may execute untrusted codeFix: Pin versions and sources; vendor anything fetched at install time.

AST06

CRITICAL

Rule modification attemptskill/rules/governance-signing.md:81 · Rule modification attempt — overwriting existing instructionsFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.

AST01

HIGH

Authorization escalation languageskill/catalog/program-registry.json:315 · Authorization escalation languageFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.

AST01

CRITICAL

Rule modification attemptskill/rules/governance-signing.md:8 · Rule modification attempt — overwriting existing instructionsFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.

AST01

CRITICAL

Rule modification attemptskill/rules/governance-signing.md:30 · Rule modification attempt — overwriting existing instructionsFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.

AST01

HIGH

Authorization escalation languagedist/catalog/program-registry.json:315 · Authorization escalation languageFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.

AST01

CRITICAL

Rule modification attemptskill/rules/governance-signing.md:45 · Rule modification attempt — overwriting existing instructionsFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.

AST01