modelcontextprotocol/python-sdk

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https://github.com/modelcontextprotocol/python-sdk · scanned 2026-05-31 01:27 UTC (1 week, 6 days ago) · 10 languages

331 raw signals (144 security + 187 graph) 99th percentile · Python · medium (20-100K LoC) System graph score 94 (lower by 4)

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Complete repo analysis

Last scanned 1 week, 6 days ago · v2 · last Δ -4.3 (diff) · 122 actionable findings from 2 signal sources. 96 repeated signals grouped for readability. Security checks, system graph analysis, and verified AI-agent feedback are merged into one review queue.

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100.0% cov · 64 findings

Score breakdown â 2026-05-18-v5

Component	Sub-score	Weight	Contribution
`structure_score`	85.0	0.15	12.75
`security_score`	95.9	0.25	23.98
`testing_score`	100.0	0.20	20.00
`documentation_score`	96.0	0.15	14.40
`practices_score`	77.0	0.15	11.55
`code_quality`	77.7	0.10	7.77
Overall		1.00	90.4

Severity distribution — click a segment to filter

Active filters: excluding tests × Reset all

Severity: Critical 0 High 5 Medium 8 Low 48 9-Layer: Software Security Quality Integrity Frontend Hardware Data Network Cicd Source: Security checks 58 System graph 64 Crowd 0 Layer: Quality 85 Software 32 Security 2 Api 1 Frontend 1 Cicd 1

Exclude dismissed / FP Exclude test files

Top 10 actions, ranked by impact × ease. Severity drives impact; tag-based fix-clarity drives ease.

Insecure pattern 'subprocess_shell_true' in src/mcp/cli/cli.py:48

GapSeverity.MEDIUM Layer.SECURITY score 0.248

Why: medium severity · OWASP-class risk

src/mcp/cli/cli.py:48

GitHub Actions workflow grants broad write permissions

GapSeverity.MEDIUM Layer.CICD score 0.225

Why: medium severity

.github/workflows/publish-pypi.yml

GitHub Actions workflow grants broad write permissions

GapSeverity.MEDIUM Layer.CICD score 0.225

Why: medium severity

.github/workflows/weekly-lockfile-update.yml

GitHub Actions workflow grants broad write permissions

GapSeverity.MEDIUM Layer.CICD score 0.225

Why: medium severity

.github/workflows/claude.yml

GitHub Actions workflow grants broad write permissions

GapSeverity.MEDIUM Layer.CICD score 0.225

Why: medium severity

.github/workflows/deploy-docs.yml

Network/subprocess call without timeout or try/except — src/mcp/cli/cli.py:276

GapSeverity.MEDIUM Layer.QUALITY score 0.225

Why: medium severity · crashes are likely without this

Fix: Add a `timeout=N` argument and wrap in `try/except` in src/mcp/cli/cli.py:276 to prevent hung calls.

Network/subprocess call without timeout or try/except — src/mcp/os/win32/utilities.py:220

GapSeverity.MEDIUM Layer.QUALITY score 0.225

Why: medium severity · crashes are likely without this

Fix: Add a `timeout=N` argument and wrap in `try/except` in src/mcp/os/win32/utilities.py:220 to prevent hung calls.

Possibly dead Python function: init

GapSeverity.LOW Layer.SOFTWARE score 0.140

Why: low severity · clean removal is a safe PR

Fix: If genuinely unused, remove the function in examples/mcpserver/memory.py:75; if framework-registered, add a docstring.

examples/mcpserver/memory.py:75

Possibly dead Python function: handle_list_resources

GapSeverity.LOW Layer.SOFTWARE score 0.140

Why: low severity · clean removal is a safe PR

Fix: If genuinely unused, remove the function in examples/servers/simple-resource/mcp_simple_resource/server.py:24; if framework-registered, add a docstring.

examples/servers/simple-resource/mcp_simple_resource/server.py:24

#10

Possibly dead Python function: handle_read_resource

GapSeverity.LOW Layer.SOFTWARE score 0.140

Why: low severity · clean removal is a safe PR

Fix: If genuinely unused, remove the function in examples/servers/simple-resource/mcp_simple_resource/server.py:41; if framework-registered, add a docstring.

examples/servers/simple-resource/mcp_simple_resource/server.py:41

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