Skills/PyPI/mcp-clipboard

mcp-clipboard@2.6.3

VERIFIED· not started

Publisher claims: "MCP server that reads and writes the system clipboard — tables, text, code, JSON, URLs, images, and more." Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher cmeans · publishing for 272 daysInstalls 130Last detonated 7d ago
$claude mcp add mcp-clipboard -- uvx mcp-clipboard
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Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

Code inventory arrives with this version's next honeypot run.
It will ask for
unknown until the next run
Where it talks to
unknown until the next run
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Not enough was observed to say yet. Not started: dependency install failed; the server itself was not observed. This version's code has not been inventoried for credentials and hosts either; both arrive with its next honeypot run (popular servers first). `vet-skills try mcp-clipboard` runs it now and prints the full answer.

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-07 and scored it 84/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. 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
0.1sprocessdependency install exit 1
0.2sprocessexec /usr/bin/date
0.2sprocessexec /usr/bin/timeout
0.2sprocessexec .venv/bin/mcp-clipboard
0.2sclaimedno tools/list reply (exit 0)
0.2sprocessscript backend runs setup only
0.2sprocessno install scripts to re-run

Static findings

MEDIUM
Python subprocess execution detectedtests/test_server.py:198 · Python subprocess execution detectedproc = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Process kill commandsrc/mcp_clipboard/clipboard.py:99 · Process kill command — agent can terminate processes# kill above -- specifically asyncio.CancelledError (BaseException)Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Privileged sudo command.github/workflows/ci.yml:90 · Privileged sudo command — agent may execute with elevated privilegesrun: sudo apt-get update && sudo apt-get install -y xvfb xclipFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Hex-encoded string detectedtests/test_integration_x11.py:100 · Hex-encoded string detected — may contain obfuscated payloadspayload = b"\x89PNG\r\n\x1a\n\x00\x01\x02\x03\x04\x05\xff\xfe"Fix: Put hosts, commands and strings in plain source. Decoding at runtime looks identical to malware and costs points on its own.
AST07
LOW
Instructs the agent to modify its persistent memory or instruction filesPKG-INFO:92 · Instructs the agent to modify its persistent memory or instruction files · informational: not an instruction file · informational: not an instruction file · informational: not an instruction file**Tip:** To make this automatic, add a line to your project or global `CLAUDE.md`:Fix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
MEDIUM
Python subprocess execution detectedtests/test_server.py:215 · Python subprocess execution detectedproc = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
HIGH
Privileged sudo commandsrc/mcp_clipboard/clipboard.py:265 · Privileged sudo command — agent may execute with elevated privileges" Fedora: sudo dnf install wl-clipboard # or xclip\n"Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
MEDIUM
Privileged sudo commandtests/test_integration_x11.py:7 · Privileged sudo command — agent may execute with elevated privilegessudo apt-get install -y xvfb xclipFix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
HIGH
Privileged sudo commandsrc/mcp_clipboard/clipboard.py:266 · Privileged sudo command — agent may execute with elevated privileges" Ubuntu: sudo apt install wl-clipboard # or xclip"Fix: Build commands from fixed arguments; do not interpolate untrusted strings into a shell.
AST05
LOW
Instructs the agent to modify its persistent memory or instruction filesPKG-INFO:329 · Instructs the agent to modify its persistent memory or instruction files · informational: not an instruction file · informational: not an instruction file · informational: not an instruction file> **Tip: auto-copy behavior.** By default the agent only copies to the clipboard when you ask. If you want commands and code blocks copied automatically, add this to your system prompt (e.g. in a ClauFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
LOW
Instructs the agent to modify its persistent memory or instruction filesREADME.md:297 · Instructs the agent to modify its persistent memory or instruction files · informational: not an instruction file · informational: not an instruction file · informational: not an instruction file> **Tip: auto-copy behavior.** By default the agent only copies to the clipboard when you ask. If you want commands and code blocks copied automatically, add this to your system prompt (e.g. in a ClauFix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01
LOW
Instructs the agent to modify its persistent memory or instruction filesREADME.md:60 · Instructs the agent to modify its persistent memory or instruction files · informational: not an instruction file · informational: not an instruction file · informational: not an instruction file**Tip:** To make this automatic, add a line to your project or global `CLAUDE.md`:Fix: Remove the text that addresses the agent rather than the reader; describe behavior, do not instruct.
AST01

Cost to the agent

Instructions loaded
≈2,065 tok
2 files · 47 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

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

No advisories in OSV for mcp-clipboard@2.6.3 as of 3 h ago. This is the package itself, not its dependencies.