Pixelle MCP Server
pixelle
PyPI
v0.1.16
Published by aidc-ai — 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.
Pixelle MCP: Convert ComfyUI workflows into MCP Tools with a single command, providing an MCP server and a Chainlit-based web UI.
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 6
high Shell/command execution in server code (pixelle/cli/commands/logs.py)MTC-SRC-002
In the server's implementation (`pixelle/cli/commands/logs.py:42`): 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: 2": subprocess.run(["tail", "-f", str(log_file)]) else: # For Wi
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 pixelle/cli/commands/logs.py
high Shell/command execution in server code (pixelle/cli/commands/workflow.py)MTC-SRC-002
In the server's implementation (`pixelle/cli/commands/workflow.py:304`): 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: ": # macOS subprocess.run(["open", str(custom_workflows_dir)], check=True) console.print("🍎 [g
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 pixelle/cli/commands/workflow.py
high Shell/command execution in server code (pixelle/cli/interactive/menu.py)MTC-SRC-002
In the server's implementation (`pixelle/cli/interactive/menu.py:103`): 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: # macOS subprocess.run(["open", str(env_path)]) elif platform.system() == "Windows":
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 pixelle/cli/interactive/menu.py
high Shell/command execution in server code (pixelle/cli/utils/server_utils.py)MTC-SRC-002
In the server's implementation (`pixelle/cli/utils/server_utils.py:126`): 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: process = subprocess.Popen( [sys.executable, "-m", "pixelle.main"],
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 pixelle/cli/utils/server_utils.py
high Shell/command execution in server code (pixelle/manager/workflow_manager.py)MTC-SRC-002
In the server's implementation (`pixelle/manager/workflow_manager.py:208`): 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: environment exec(func_def, { "metadata": metadata, "logger": logger,
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 pixelle/manager/workflow_manager.py
high Shell/command execution in server code (pixelle/utils/process_util.py)MTC-SRC-002
In the server's implementation (`pixelle/utils/process_util.py:82`): 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: rt time os.system(f"kill -TERM {target_proc.pid}") time.sleep(2) if not
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 pixelle/utils/process_util.py
Tools 6
Each tool and what it can reach — statically extracted from the published source.
get_workflow_tool_detailno sensitive capabilityi_cropno sensitive capabilitylist_workflows_toolno sensitive capabilityreload_workflows_toolno sensitive capabilityremove_workflow_toolno sensitive capabilitysave_workflow_toolno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (6 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 |
|---|---|---|---|---|
v0.1.16 latest |
A 93/100 | 6 | 1.13.0 | 2026-08-25 |
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.
npx mcptrustchecker scan pixelle --online --registry pypiMore in Developer Tools
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