Klyk MCP Server
klyk
PyPI
v0.3.0
Published by legetdev — no publish provenance, so origin is unverified, but the source is public: the repository link below is self-declared yet readable, so you can inspect the code before adopting it.
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 7 = 93. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −6 | capability blast radius (high) — client exposure if the model is manipulated |
| −1 | publisher verification (public source) — no provenance, but the source is public and inspectable |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 7
high Shell/command execution in server code (klyk/capture.py)MTC-SRC-002
In the server's implementation (`klyk/capture.py:585`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: try: result = subprocess.run( ["system_profiler", "SPDisplaysDataType"], capture_outpu
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server klyk/capture.py
high Shell/command execution in server code (klyk/cli.py)MTC-SRC-002
In the server's implementation (`klyk/cli.py:172`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: e) try: r = subprocess.run(cmd, capture_output=True, text=True) except FileNotFoundError: print(
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server klyk/cli.py
high Shell/command execution in server code (klyk/client.py)MTC-SRC-002
In the server's implementation (`klyk/client.py:73`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: ) self._proc = subprocess.Popen( self._cmd, stdin=subprocess.PIPE, stdout=s
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server klyk/client.py
high Shell/command execution in server code (klyk/computer.py)MTC-SRC-002
In the server's implementation (`klyk/computer.py:520`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: ( None, lambda: subprocess.run(["osascript", "-e", script], capture_output=True, timeout=3) ) await asyn
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server klyk/computer.py
high Shell/command execution in server code (klyk/doctor.py)MTC-SRC-002
In the server's implementation (`klyk/doctor.py:314`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: f.name result = subprocess.run( ["screencapture", "-x", "-t", "png", tmp_path], capture_
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server klyk/doctor.py
high Shell/command execution in server code (klyk/launcher.py)MTC-SRC-002
In the server's implementation (`klyk/launcher.py:175`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: n None result = subprocess.run( ["osascript", "-e", script], capture_output=True, text=T
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server klyk/launcher.py
high Shell/command execution in server code (klyk/session.py)MTC-SRC-002
In the server's implementation (`klyk/session.py:315`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: result = subprocess.run( ["mdfind", f"kMDItemFSName == '{fs_name}'"],
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server klyk/session.py
Tools 48
Each tool and what it can reach — statically extracted from the published source.
get_logsreads sensitive dataax_actionno sensitive capabilityax_snapshotno sensitive capabilityclickno sensitive capabilityclick_elementno sensitive capabilityclick_menuno sensitive capabilityclose_appno sensitive capabilityclose_appsno sensitive capabilitycontext_menu_selectno sensitive capabilitydouble_clickno sensitive capability
Show 38 more tools ↓
dragno sensitive capabilitydrag_to_elementno sensitive capabilityfill_fieldno sensitive capabilityfind_templateno sensitive capabilityfocus_windowno sensitive capabilityget_clipboardno sensitive capabilityget_escalation_logno sensitive capabilityget_pixelno sensitive capabilityget_pixelsno sensitive capabilityget_templateno sensitive capabilityhandle_system_dialogno sensitive capabilityhold_keyno sensitive capabilityinspectno sensitive capabilitylist_sessionsno sensitive capabilitylist_windowsno sensitive capabilitylong_pressno sensitive capabilitymove_cursorno sensitive capabilitypress_keyno sensitive capabilitypress_system_keyno sensitive capabilityread_elementno sensitive capabilityread_gridno sensitive capabilityread_textno sensitive capabilityresumeno sensitive capabilityrunno sensitive capabilityscreen_infono sensitive capabilityscreenshotno sensitive capabilityscrollno sensitive capabilityselect_optionno sensitive capabilityset_clipboardno sensitive capabilityset_modeno sensitive capabilityset_window_boundsno sensitive capabilitytake_controlno sensitive capabilitytriple_clickno sensitive capabilitytype_textno sensitive capabilityverdictno sensitive capabilitywaitno sensitive capabilitywait_forno sensitive capabilitywait_for_visualno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (48 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 1
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v0.3.0 latest |
A 93/100 | 7 | 1.8.0 | 2026-07-23 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
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