AI Slop Code Risk Monitor

hydro-dev/Hydro

SlopCodeMonitor badge for hydro-dev/Hydro Adjusted legacy signal; badge bands: 25 / 50 / 75 (different from dashboard bands).

Hydro - Next generation high performance online-judge platform - 新一代高效强大的信息学在线测评系统 (a.k.a. vj5)

0.5 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for hydro-dev/Hydro, a TypeScript project with 7,182 GitHub stars. SynthScan examined 76,298 lines of code across 717 source files, recording 33 pattern matches distributed across 4 syntactic categories. The legacy adjusted pattern signal is 0.5 (Low pattern signal); it is not an authorship estimate.

Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.

0.5
Adjusted Signal
0.5
Raw Pattern Score
100%
Time Factor
2026-10-31
Last Push
7.2K
Stars
TypeScript
Language
76.3K
Lines of Code
717
Files
33
Pattern Hits
2026-10-31
Scan Date
0.00
HC Hit Rate

Risk Review · Payload v1

Use each vector to guide manual verification of the underlying findings.

Payload schema: 1.0.0 · Engine: 2.0.0 · Scoring: heuristic-density-v1 · Scan date: 2026-10-31.

Cognitive Ownership Risk 1.9/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 30 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.7/100 · LOW

Are imports declared and package/API names verified? 3 finding(s).

Agent Over-Engineering Ratio 1.6/100 · LOW

Are wrappers, guards, and repeated structures necessary? 24 finding(s).

PR Review Velocity Impact 2.8/100 · LOW

Which changes need focused human review? 33 finding(s).

What These Metrics Mean

Adjusted Signal
Legacy pattern score normalized per 1,000 scanned lines and multiplied by the repository-level time factor. It is not an estimate of AI authorship.
Raw Pattern Score
Sum of severity- and context-weighted pattern findings before applying the time factor.
Time Factor
A coarse multiplier based on repository last-push metadata. It does not identify when individual code was written.
Pattern Hits
Count of configured pattern findings. Review each location and surrounding code before acting.
HC Hit Rate
High- and critical-severity findings per scanned file. Severity is a configured detector weight, not proof of a vulnerability or authorship.
Lines / Files
Scan coverage denominators used by the legacy normalized score.

Pattern-Signal History

This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.

Severity Breakdown

Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.

CRITICAL 0HIGH 2MEDIUM 0LOW 31

Directory Score Breakdown

This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.

Pattern Findings

The scanner identified 33 distinct pattern matches across 4 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.

Reading the findings table: The Severity column indicates the configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.

Hyper-Verbose Identifiers24 hits · 24 pts
SeverityFileLineSnippetContext
LOWinstall/install.ts302function removeOptionalEsbuildDeps() {CODE
LOWpackages/hydrooj/src/pipelineUtils.ts49export async function iterateAllProblemInDomain(CODE
LOWpackages/hydrooj/src/model/contest.ts1002export async function getAndListStatus(domainId: string, tid: ObjectId): Promise<[Tdoc, any[]]> {CODE
LOWpackages/hydrooj/src/service/storage.ts26function parseAlternativeEndpointUrl(endpoint: string): (originalUrl: string) => string {CODE
LOWpackages/ui-default/utils/base.ts206export async function setTemporaryViewTransitionNames(entries, vtPromise: Promise<void>) {CODE
LOW…ui-default/components/form/multiSelectCheckbox.page.js30function onToggleRoleCheckboxClick(ev) {CODE
LOW…lt/components/messagepad/DialogueListItemComponent.jsx4export default function DialogueListItemComponent(props) {CODE
LOW…ges/ui-default/components/discussion/comments.page.tsx73async function onCommentClickReplyComment(ev, options: any = {}) {CODE
LOW…ges/ui-default/components/discussion/comments.page.tsx153function onCommentClickEditComment(ev) {CODE
LOW…ges/ui-default/components/discussion/comments.page.tsx174function onCommentClickDeleteComment(ev) {CODE
LOW…ges/ui-default/components/discussion/comments.page.tsx178function onCommentClickDeleteReply(ev) {CODE
LOWpackages/ui-default/pages/problem_files.page.tsx14function ensureAndGetSelectedFiles(type = '') {CODE
LOWpackages/ui-default/pages/problem_files.page.tsx25 async function handleClickDownloadSelected(ev) {CODE
LOWpackages/ui-default/pages/problem_detail.page.tsx114 async function handleClickDownloadProblem() {CODE
LOWpackages/ui-default/pages/problem_main.page.tsx116function buildLegacyCategoryFilter() {CODE
LOWpackages/ui-default/pages/domain_user.page.js61 function ensureAndGetSelectedUsers() {CODE
LOWpackages/ui-default/pages/domain_user.page.js73 async function handleClickRemoveSelected() {CODE
LOWpackages/ui-default/pages/domain_role.page.js27 function ensureAndGetSelectedRoles() {CODE
LOWpackages/ui-default/pages/domain_role.page.js54 async function handleClickDeleteSelected() {CODE
LOWpackages/ui-default/pages/domain_group.page.ts87 function ensureAndGetSelectedGroups() {CODE
LOWpackages/ui-default/pages/domain_group.page.ts112 async function handleClickDeleteSelected() {CODE
LOWpackages/ui-default/pages/files.page.tsx31function ensureAndGetSelectedFiles(type = '') {CODE
LOWpackages/ui-default/pages/files.page.tsx85async function handleClickRenameSelected(ev) {CODE
LOWpackages/ui-default/pages/files.page.tsx288async function handleClickRemoveSelected(ev: JQuery.ClickEvent<Document, undefined, HTMLElement, HTMLElement>) {CODE
Cross-Language Confusion (JS/TS)2 hits · 10 pts
SeverityFileLineSnippetContext
HIGHpackages/hydrojudge/src/checkers.ts89elif [ "$usrsize" -lt "$stdsize" ]; thenCODE
HIGHpackages/hydrojudge/src/checkers.ts98elif [ -n "$result" ]; thenCODE
Over-Commented Block6 hits · 6 pts
SeverityFileLineSnippetContext
LOWinstall/install.ts241 reverse_proxy http://127.0.0.1:8888COMMENT
LOWpackages/components/frontend/common.scss161$syntax-hl-bg-color: #F8F8F8;COMMENT
LOWpackages/ui-default/components/editor/index.tsx201 // 'orderedList',COMMENT
LOW.github/workflows/build.yml81 # run: yarn benchmarkCOMMENT
LOW.github/workflows/build.yml101 # uses: docker/login-action@v1COMMENT
LOW.github/workflows/build.yml121 # steps:COMMENT
Fake / Example Data1 hit · 1 pts
SeverityFileLineSnippetContext
LOWpackages/ui-default/pages/home_settings.page.ts51 $text.attr('placeholder', i18n(placeholder));CODE