Skills/Glama/efferent

efferent@1.0.0

VERIFIED

Publisher claims: "A local MCP server that lets Claude (or any MCP client) drive the user's own browser — with their existing sign-ins — in a separate window of its own, so pages can be opened, read, and acted on without stealing focus or interrupting the user's work." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry GlamaPublisher brandonmlicea · joined 0 days agoInstalls 0Last detonated 1 h ago
$npx skills add efferent
WatchReport an issue

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios) on 2026-11-06 and scored it 83/100 (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 · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.2sprocessexec /usr/bin/date
0.2sprocessexec /usr/bin/timeout
0.2sclaimed8 tools: browsers, tabs, open, read, act, screenshot, eval, close
0.2sprocessscript backend runs setup only
0.2sprocessno install scripts to re-run

Static findings

LOW
Prompt injectionREADME.md:35 · Prompt injection — known jailbreak technique reference · informational: not an instruction fileFix: Keep SKILL.md to visible, descriptive text. Remove comments and encoded text that address the agent.
AST01
MEDIUM
URL using raw IP addresseval/run.mjs:27 · URL using raw IP address — may bypass domain-based filteringFix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.
AST07
HIGH
Outbound HTTP to raw IP addresseval/run.mjs:27 · Outbound HTTP to raw IP address — may bypass domain-based monitoringFix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.
AST07
LOW
Authorization escalation languageREADME.md:35 · Authorization escalation language · informational: not an instruction fileFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01

Cost to the agent

Instructions loaded
≈35 tok
1 file · 31 in bundle
Tool list per prompt
≈1,091 tok
8 tools · 136 per tool
Handshake
164 ms
launch to tools/list, stdio
Undocumented tools
1
description under 20 chars · avg 202

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

Vulnerability advisories (OSV) cover npm and PyPI packages; this registry has no advisory database.