MCP Server Code Execution Mode
by elusznikAn MCP server that executes Python code in isolated rootless containers with optional MCP server proxying. Implementation of Anthropic's and Cloudflare's ideas for reducing MCP tool definitions context bloat.
MCP Server Code Execution Mode is an open-source mcp server by elusznik, written mainly in Python, with 340 GitHub stars and the GPL-3.0 license. Its code was last updated Dec 5, 2025.
Scan summary: scanned Nov 5, 2026 at commit 27d23b8. No capabilities flagged by our checks. Scan policy
ScannedScanned. The automated checks below ran on the commit shown. Read each line for what was and was not covered.
Full scan at
27d23b8 · Nov 5, 2026 ScannedStatic, secrets and dependency checks completed with no critical findings. BuildsIt installed from a fresh machine.
Passed. This check ran and found nothing it flags.Static code scanpassPassed. This check ran and found nothing it flags.
Passed. This check ran and found nothing it flags.Secrets scanpassPassed. This check ran and found nothing it flags.
Flagged. This check found an issue. See the findings below.Dependency audit58 known vulnerabilitiesfailFlagged. This check found an issue. See the findings below.
Warning. This check found something worth reading in the findings below. It is not proof of a problem.ManifestnonewarnWarning. This check found something worth reading in the findings below. It is not proof of a problem.
Passed. This check ran and found nothing it flags.BuildpassPassed. This check ran and found nothing it flags.
Flagged. This check found an issue. See the findings below.Boot & handshakefailFlagged. This check found an issue. See the findings below.
Not applicable. This check does not apply to this kind of project, or it was not run in this scan.Network egressn/aNot applicable. This check does not apply to this kind of project, or it was not run in this scan.
Not applicable. This check does not apply to this kind of project, or it was not run in this scan.Reproducible (×3)n/aNot applicable. This check does not apply to this kind of project, or it was not run in this scan.
Findings (15)
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.python-multipart@0.0.9: 8 known vulnerabilitiesPYSEC-2026-1851, PYSEC-2026-1852, PYSEC-2026-3036, PYSEC-2026-3037, PYSEC-2026-3038 +3 more
requirements.txt - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.mcp@1.21.0: 7 known vulnerabilitiesPYSEC-2026-1617, PYSEC-2026-3482, PYSEC-2026-3483, GHSA-5h93-6whr-6q8j, GHSA-84m7-p3x7-pcfv +2 more
uv.lock - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.python-multipart@0.0.20: 7 known vulnerabilitiesPYSEC-2026-1852, PYSEC-2026-3036, PYSEC-2026-3037, PYSEC-2026-3038, PYSEC-2026-3039 +2 more
uv.lock - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.starlette@0.50.0: 5 known vulnerabilitiesPYSEC-2026-161, PYSEC-2026-2280, PYSEC-2026-2281, PYSEC-2026-248, PYSEC-2026-249
uv.lock - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.MCP server didn't complete the protocol handshakeserver exited early with code 1
- lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
GUIDE.md:836 - lowLow. Minor, or common in normal tools. Shown for information.idna@3.11: 1 known vulnerabilityPYSEC-2026-215
uv.lock - lowLow. Minor, or common in normal tools. Shown for information.pygments@2.19.2: 1 known vulnerabilityPYSEC-2026-2987
uv.lock - lowLow. Minor, or common in normal tools. Shown for information.pytest@9.0.1: 1 known vulnerabilityPYSEC-2026-1845
uv.lock - lowLow. Minor, or common in normal tools. Shown for information.python-dotenv@1.2.1: 1 known vulnerabilityPYSEC-2026-2270
uv.lock - lowLow. Minor, or common in normal tools. Shown for information.No manifest declaring network access and environment variables (agent.json)
Network activity
During install
files.pythonhosted.orgpypi.org
While running
Not run — the code wasn't started in this scan
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MCP Server Code Execution Mode alternatives
View more →Similar mcp servers in Coding Agents, ranked by GitHub stars. Compare licence, recent activity and scan status before you choose.
| Name | Stars | Licence | Last updated | Scan |
|---|---|---|---|---|
| MCP Server Code Execution Mode (this page) elusznik | 340 | GPL-3.0 | Dec 5, 2025 | Scanned, no flagged issues |
| Context Mode mksglu | 33k | None found | Nov 1, 2026 | Not scanned yet |
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| MCP For Beginners microsoft | 18k | MIT | Oct 30, 2026 | Scanned, no flagged issues |