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facebook/hhvm

https://github.com/facebook/hhvm · scanned 2026-06-05 18:10 UTC (4 days, 20 hours ago) · 10 languages

946 raw signals (240 security + 706 graph) 11/13 scanners ran System graph score 54 (higher by 20)

UNIFIED Repobility · multi-layer engine · AI coders

Complete repo analysis

Last scanned 4 days, 20 hours ago · v2 · 282 actionable findings from 2 signal sources. 286 repeated signals grouped for readability. Security checks, system graph analysis, and verified AI-agent feedback are merged into one review queue.

JSON
Score breakdown â 2026-05-18-v5
Component Sub-score Weight Contribution
structure_score 40.0 0.15 6.00
security_score 100.0 0.25 25.00
testing_score 80.0 0.20 16.00
documentation_score 88.0 0.15 13.20
practices_score 50.0 0.15 7.50
code_quality 68.0 0.10 6.80
Overall 1.00 74.5
security_score may be inflated — optional security scanners were skipped on this fast scan
Severity distribution — click a segment to filter
Active filters: excluding tests × Reset all

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 3 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.
3 matching findings on this repo
  • low Near-duplicate function bodies in 2 places repo-level
  • low Near-duplicate function bodies in 3 places repo-level
  • low Near-duplicate function bodies in 6 places
View all duplicates & near-duplicates findings →
Legacy markers 2 findings
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.
2 matching findings on this repo
  • low Old/deprecated-named symbol `types_legacy` in third-party/fb-mysql/8.0.20/extra…
  • low Old/deprecated-named symbol `_warn_if_legacy` in third-party/thrift/src/thrift/…
View all legacy markers findings →
Commented-out code 27 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 third-party/mcrouter/src/mcrouter/test/test_d…
  • info Commented-code block (5 lines) in third-party/mcrouter/src/mcrouter/test/test_r…
  • info Commented-code block (8 lines) in third-party/folly/src/folly/coro/scripts/co_b…
  • info Commented-code block (5 lines) in third-party/folly/src/folly/fibers/scripts/gd…
  • info Commented-code block (6 lines) in third-party/fb-mysql/8.0.20/extra/duktape/duk…
  • info Commented-code block (6 lines) in third-party/fb-mysql/8.0.20/extra/duktape/duk…
  • info Commented-code block (5 lines) in third-party/fb-mysql/8.0.20/extra/duktape/duk…
  • info Commented-code block (5 lines) in third-party/fb-mysql/8.0.20/extra/duktape/duk…
  • info Commented-code block (5 lines) in third-party/fb-mysql/8.0.20/extra/duktape/duk…
  • info Commented-code block (6 lines) in third-party/fb-mysql/8.0.20/extra/duktape/duk…
  • info Commented-code block (5 lines) in third-party/fb-mysql/8.0.20/extra/duktape/duk…
  • info Commented-code block (6 lines) in third-party/fb-mysql/8.0.20/extra/duktape/duk…
View all commented-out code findings →
Config drift 12 findings
What it is: Settings duplicated across env files, Docker compose, K8s, and code defaults, all with slightly different values.
Why it matters: Production behaviour depends on whichever copy your loader reads first. Subtle bugs in staging that don't reproduce in dev.
How AI causes it: AI writes new config from memory rather than reading the existing source.
Fix approach: Pick one source of truth (env vars + a settings module). Have every other place import from there. Lint for duplicates in CI.
12 matching findings on this repo
  • medium No CI/CD configuration found
  • high [MINED106] Phantom test coverage: test_bad_config: Test function `test_bad_conf… third-party/mcrouter/src/mcrouter/test/test_bad_p…:58
  • low File has no detected symbols: third-party/watchman/src/website/babel.config.js
  • low File has no detected symbols: third-party/watchman/src/website/docusaurus.confi…
  • high Insecure pattern 'eval_used' in third-party/fb-mysql/8.0.20/extra/duktape/dukta… third-party/fb-mysql/8.0.20/extra/duktape/duktape…:10
  • high Insecure pattern 'eval_used' in third-party/fb-mysql/8.0.20/extra/duktape/dukta… third-party/fb-mysql/8.0.20/extra/duktape/duktape…:8
  • critical Possible secret in third-party/watchman/src/website/docusaurus.config.js third-party/watchman/src/website/docusaurus.confi…:239
  • low Very large file: third-party/fb-mysql/8.0.20/extra/duktape/duktape-2.3.0/tools/…
  • low Old/deprecated-named symbol `test_dumped_config_too_old` in third-party/mcroute…
  • info Commented-code block (5 lines) in third-party/fb-mysql/8.0.20/extra/duktape/duk…
  • low Old/deprecated-named symbol `types_legacy` in third-party/fb-mysql/8.0.20/extra…
  • info Commented-code block (6 lines) in third-party/fb-mysql/8.0.20/extra/duktape/duk…
View all config drift findings →
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