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EvanBacon/serve-sim

https://github.com/EvanBacon/serve-sim · scanned 2026-05-16 22:30 UTC (18 hours, 51 minutes ago) · 10 languages

74 findings (9 legacy + 65 scanner) 65th percentile · Typescript · medium (20-100K LoC) Scanner says 89 (lower by 13)

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UNIFIED Repobility · multi-layer engine · AI coders

Complete repo analysis

Last scanned 18 hours, 51 minutes ago · v1 · 74 findings from 2 sources. Findings combine the legacy security pipeline AND the multi-layer engine (atlas, wiring, flows, ranked) AND verified AI agent contributions.

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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.

Fragile runtime 14 findings

What it is: Code that runs but breaks under predictable input — division by zero, missing keys, unbounded loops, off-by-one slicing.

Why it matters: Reaches production undetected because happy-path tests pass. First user with a weird input crashes the request.

How AI causes it: AI loves writing the happy path; doesn't probe edge cases unless explicitly asked.

Fix approach: Add property-based tests. Wrap external inputs with explicit validators. Use the framework's typed deserializer (Pydantic, attrs).

12 matching findings on this repo

medium [ERR002] Empty Catch Block: Empty catch blocks hide errors. packages/serve-sim/src/client/hooks/use-mjpeg-str…:44
medium [ERR002] Empty Catch Block: Empty catch blocks hide errors. packages/serve-sim/src/client/client.tsx:536
medium [ERR002] Empty Catch Block: Empty catch blocks hide errors. packages/serve-sim-client/src/simulator/Simulator…:311
medium localStorage write failures are swallowed silently packages/serve-sim/src/client/hooks/use-simulator…:100
medium localStorage write failures are swallowed silently packages/serve-sim/src/client/hooks/use-resizable…:45
medium `fetch()` without try/.catch or AbortSignal — packages/serve-sim/dev.ts:333
medium `fetch()` without try/.catch or AbortSignal — packages/serve-sim/src/middleware…
medium `fetch()` without try/.catch or AbortSignal — packages/serve-sim/src/__tests__/…
medium `fetch()` without try/.catch or AbortSignal — packages/serve-sim/src/__tests__/…
medium `fetch()` without try/.catch or AbortSignal — packages/serve-sim/src/client/uti…
medium `fetch()` without try/.catch or AbortSignal — packages/serve-sim/src/client/hoo…
medium `fetch()` without try/.catch or AbortSignal — packages/serve-sim-client/src/__t…

View all fragile runtime findings →

Commented-out code 10 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/`.

10 matching findings on this repo

info Commented-code block (6 lines) in packages/serve-sim/src/debug.ts:3
info Commented-code block (5 lines) in packages/serve-sim/src/permissions.ts:313
info Commented-code block (5 lines) in packages/serve-sim/src/index.ts:104
info Commented-code block (8 lines) in packages/serve-sim/src/middleware.ts:418
info Commented-code block (5 lines) in packages/serve-sim/src/__tests__/permissions.…
info Commented-code block (6 lines) in packages/serve-sim/src/client/location-emulat…
info Commented-code block (6 lines) in packages/serve-sim/src/client/trails.ts:259
info Commented-code block (5 lines) in packages/serve-sim/src/client/utils/sim-endpo…
info Commented-code block (6 lines) in packages/serve-sim/src/client/components/simu…
info Commented-code block (5 lines) in packages/serve-sim-client/src/simulator/Simul…

View all commented-out code findings →

{# ── 2026-05-17 Round 14: AI-agent bridge footer ────────────────────── Discoverability: the /agents/voting/ guide + MCP manifest exist but aren't linked from anywhere users actually land. Small, opt-in footer. #}

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