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

Bug-class explainers. Each card groups findings of the same shape — these are the patterns most likely to ship to prod and reappear in future scans unless you systematically fix the cause, not just the instance.

Duplicates & near-duplicates 4 findings

What it is: Same function copy-pasted into multiple modules with minor variations.

Why it matters: Each copy drifts independently — bug fixes apply to one, miss the others.

How AI causes it: AI completes the same pattern in each file rather than refactoring to a shared helper.

Fix approach: Extract the duplicated logic into the most general module both call sites already import. Add tests at the helper level.

4 matching findings on this repo

low Near-duplicate function bodies in 2 places repo-level
low Near-duplicate function bodies in 4 places
low Near-duplicate function bodies in 5 places
low Near-duplicate function bodies in 3 places repo-level

View all duplicates & near-duplicates findings →

Legacy markers 1 finding

What it is: TODO, FIXME, XXX, HACK comments. Often indicate a known-broken path the author meant to fix.

Why it matters: Each marker is an unfinished thought. Production code shouldn't ship with debt that's documented but not tracked.

How AI causes it: AI mirrors the style of the codebase, so existing TODOs propagate into new code.

Fix approach: Convert each into a ticket. Delete the comment when the ticket lands. Use a pre-commit hook to block new TODOs without an issue link.

1 matching finding on this repo

low Old/deprecated-named symbol `select_color_legacy` in tests/server/mcpserver/tes…

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Commented-out code 16 findings

What it is: Lines of source that were intentionally disabled but never deleted.

Why it matters: Git already remembers history — commented code rots, becomes wrong, and adds noise to diffs.

How AI causes it: AI sometimes comments out broken code instead of fixing it. Reviewers approve out of inertia.

Fix approach: Delete. Trust `git log`. If you really need to remember, save it in a notes file under `docs/`.

12 matching findings on this repo

info Commented-code block (5 lines) in tests/test_examples.py:2
info Commented-code block (7 lines) in tests/client/test_transport_stream_cleanup.py…
info Commented-code block (7 lines) in tests/client/test_stdio.py:235
info Commented-code block (5 lines) in tests/shared/test_streamable_http.py:1998
info Commented-code block (5 lines) in tests/shared/test_auth.py:66
info Commented-code block (5 lines) in tests/interaction/_helpers.py:19
info Commented-code block (6 lines) in tests/interaction/lowlevel/test_timeouts.py:99
info Commented-code block (5 lines) in tests/server/test_lowlevel_exception_handling…
info Commented-code block (5 lines) in tests/server/test_session.py:350
info Commented-code block (5 lines) in tests/server/mcpserver/test_integration.py:6
info Commented-code block (5 lines) in tests/server/mcpserver/test_func_metadata.py:1
info Commented-code block (5 lines) in examples/servers/simple-streamablehttp/mcp_si…

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