Is core@2.77.0 safe to install?

core@2.77.0

VERIFIED

Publisher claims: "AI-authored 2D rigging and animation, verified before it is written. rigc compiles a rig spec into skeleton data in the Spine 4.3 format, gates it with named assertions held to a spine-core round trip's verdicts, and emits nothing that fails. Ships as an " Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry npm (MCP server)Publisher rig-c · joined 7 days agoInstalls 10,214Last detonated 7d ago

$claude mcp add core -- npx -y @rig-c/core

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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

MEDIUM

File type combined with upload actionsrc/cli/repack.ts:19 · 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.

AST07

HIGH

Destructive file system command detectedsrc/cli/shared.ts:1089 · Destructive file system command detectedFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.

AST05

MEDIUM

File type combined with upload actionsrc/cli/shared.ts:1565 · 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.

AST07

MEDIUM

File type combined with upload actionsrc/cli/shared.ts:1551 · 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.

AST07

MEDIUM

File type combined with upload actionsrc/cli/shared.ts:1516 · 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.

AST07

MEDIUM

File type combined with upload actionsrc/cli/repack.ts:466 · 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.

AST07

MEDIUM

File type combined with upload actionsrc/cli/shared.ts:1250 · 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.

AST07

MEDIUM

File type combined with upload actionsrc/cli/repack.ts:347 · 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.

AST07

MEDIUM

File type combined with upload actionsrc/cli/shared.ts:1458 · 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.

AST07

MEDIUM

File type combined with upload actionsrc/cli/repack.ts:348 · 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.

AST07

MEDIUM

File type combined with upload actionsrc/deformbuild.ts:24 · 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.

AST07

MEDIUM

File type combined with upload actionsrc/cli/repack.ts:458 · 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.

AST07