AI Slop Code Risk Monitor

resend/react-email

SlopCodeMonitor badge for resend/react-email Adjusted legacy signal; badge bands: 25 / 50 / 75 (different from dashboard bands).

💌 Build and send emails using React

0.9 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for resend/react-email, a TypeScript project with 19,901 GitHub stars. SynthScan examined 152,813 lines of code across 1342 source files, recording 106 pattern matches distributed across 4 syntactic categories. The legacy adjusted pattern signal is 0.9 (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.

0.9
Adjusted Signal
0.9
Raw Pattern Score
100%
Time Factor
2026-10-30
Last Push
19.9K
Stars
TypeScript
Language
152.8K
Lines of Code
1.3K
Files
106
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 1.3/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 41 finding(s).

Hallucinated Dependency & Supply Chain Risk 2.9/100 · LOW

Are imports declared and package/API names verified? 65 finding(s).

Agent Over-Engineering Ratio 1.1/100 · LOW

Are wrappers, guards, and repeated structures necessary? 35 finding(s).

PR Review Velocity Impact 4.0/100 · LOW

Which changes need focused human review? 106 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 2HIGH 0MEDIUM 0LOW 104

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 106 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.

Fake / Example Data63 hits · 70 pts
SeverityFileLineSnippetContext
LOW…ipts/utils/default-seed/communications/team-invite.tsx74 inviterName: 'John Doe',CODE
LOW…c/utils/caniemail/tailwind/get-tailwind-config.spec.ts11 './tests/dummy-email-template.tsx',CODE
LOW…c/utils/caniemail/tailwind/get-tailwind-config.spec.ts30 './tests/dummy-email-template-inline-config.tsx',CODE
LOW…c/utils/caniemail/tailwind/get-tailwind-config.spec.ts49 './tests/dummy-email-template-shadowed-config.tsx',CODE
LOW…c/utils/caniemail/tailwind/get-tailwind-config.spec.ts68 './tests/dummy-email-template-empty-config.tsx',CODE
LOW…c/utils/caniemail/tailwind/get-tailwind-config.spec.ts85 './tests/dummy-email-template-plugin-import.tsx',CODE
LOW⚡…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts41 const cfg = await cssConfigsFor('dummy-email-template-theme-inline.tsx');CODE
LOW⚡…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts48 'dummy-email-template-theme-variable.tsx',CODE
LOW⚡…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts55 const cfg = await cssConfigsFor('dummy-email-template-theme-import.tsx');CODE
LOW⚡…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts64 'dummy-email-template-utility-inline.tsx',CODE
LOW⚡…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts72 'dummy-email-template-utility-variable.tsx',CODE
LOW⚡…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts80 'dummy-email-template-utility-import.tsx',CODE
LOW⚡…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts88 const cfg = await cssConfigsFor('dummy-email-template.tsx');CODE
LOW⚡…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts93 const cfg = await cssConfigsFor('dummy-email-template-combined.tsx');CODE
LOW…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts105 const cfg = await cssConfigsFor('dummy-email-template-unresolvable.tsx');CODE
LOW…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts117 'dummy-email-template-theme-inline.tsx',CODE
LOW…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts125 'dummy-email-template-utility-inline.tsx',CODE
LOW⚡…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts137 'dummy-email-template-combined.tsx',CODE
LOW⚡…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts143 'dummy-email-template-combined.tsx',CODE
LOW⚡…ls/caniemail/tailwind/get-tailwind-css-configs.spec.ts149 'dummy-email-template-combined.tsx',CODE
LOW…l/tailwind/tests/dummy-email-template-theme-import.tsx2import customTheme from './dummy-email-template-theme-import.css?inline';CODE
LOW…tailwind/tests/dummy-email-template-utility-import.tsx2import customUtility from './dummy-email-template-utility-import.css?inline';CODE
LOW…es/react-email/src/components/section/section.spec.tsx6 const actualOutput = await render(<Section>Lorem ipsum</Section>);CODE
LOW…es/react-email/src/components/section/section.spec.tsx8 `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitioCODE
LOW⚡…es/react-email/src/components/section/section.spec.tsx32 <div>Lorem ipsum</div>CODE
LOW⚡…es/react-email/src/components/section/section.spec.tsx41 <td>Lorem ipsum</td>CODE
LOW⚡…es/react-email/src/components/section/section.spec.tsx50 <div>Lorem ipsum</div>CODE
LOW⚡…es/react-email/src/components/section/section.spec.tsx51 <p>Lorem ipsum</p>CODE
LOW…es/react-email/src/components/heading/heading.spec.tsx25 Lorem ipsumCODE
LOW…es/react-email/src/components/heading/heading.spec.tsx29 `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitioCODE
LOWpackages/react-email/src/components/body/body.spec.tsx24 const actualOutput = await render(<Body>Lorem ipsum</Body>);CODE
LOWpackages/react-email/src/components/body/body.spec.tsx26 `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitioCODE
LOW…ages/react-email/src/components/column/column.spec.tsx23 const actualOutput = await render(<Column>Lorem ipsum</Column>);CODE
LOW…ages/react-email/src/components/column/column.spec.tsx25 `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitioCODE
LOW…es/react-email/src/components/preview/preview.spec.tsx42 'Lorem ipsum dolor sit amet consectetur adipisicing elit. Tenetur dolore mollitia dignissimos itaque. At excepturiCODE
LOW…es/react-email/src/components/preview/preview.spec.tsx42 'Lorem ipsum dolor sit amet consectetur adipisicing elit. Tenetur dolore mollitia dignissimos itaque. At excepturiCODE
LOWpackages/react-email/src/components/text/text.spec.tsx30 const actualOutput = await render(<Text>Lorem ipsum</Text>);CODE
LOWpackages/react-email/src/components/text/text.spec.tsx32 `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitioCODE
LOWpackages/render/src/browser/render-web.spec.tsx204 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed doCODE
LOWpackages/render/src/browser/render-web.spec.tsx204 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed doCODE
LOWpackages/render/src/browser/render-web.spec.tsx221 `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitioCODE
LOWpackages/render/src/browser/render-web.spec.tsx221 `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitioCODE
LOWpackages/render/src/node/render-edge.spec.tsx214 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed doCODE
LOWpackages/render/src/node/render-edge.spec.tsx214 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed doCODE
LOWpackages/render/src/node/render-edge.spec.tsx231 `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitioCODE
LOWpackages/render/src/node/render-edge.spec.tsx231 `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitioCODE
LOWpackages/render/src/node/render-node.spec.tsx167 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed doCODE
LOWpackages/render/src/node/render-node.spec.tsx167 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed doCODE
LOWpackages/render/src/node/render-node.spec.tsx184 `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitioCODE
LOWpackages/render/src/node/render-node.spec.tsx184 `"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitioCODE
LOWskills/react-email/SKILL.md120 name: 'John Doe',CODE
LOWskills/react-email/SKILL.md288 to: ['user@example.com'],CODE
LOWskills/react-email/references/I18N.md150 to: ['user@example.com'],CODE
LOWskills/react-email/references/SENDING.md40 to: ['user@example.com'],CODE
LOWskills/react-email/references/SENDING.md69 to: ['user@example.com'],CODE
LOWskills/react-email/references/SENDING.md95 to: 'user@example.com',CODE
LOWskills/react-email/references/SENDING.md119 to: ['user@example.com'],CODE
LOWskills/react-email/references/SENDING.md136 to: 'user@example.com',CODE
LOWskills/react-email/references/PATTERNS.md75 email: 'user@example.com',CODE
LOWskills/react-email/references/PATTERNS.md273 name: 'John Doe',CODE
3 more matches not shown…
Hyper-Verbose Identifiers35 hits · 35 pts
SeverityFileLineSnippetContext
LOW…arks/ui/src/utils/run-server-and-fetch-preview-page.ts6export function runServerAndFetchPreviewPage(pathToCliScript: string) {CODE
LOWpackages/ui/src/utils/get-email-component.ts26function describeBundledModuleExports(value: unknown): string {CODE
LOW…i/src/utils/caniemail/ast/get-used-style-properties.ts53export function writtenMemberExpressionTo(CODE
LOW…/react-email/src/components/tailwind/tailwind.spec.tsx779 function renderComplexEmailWithoutHead() {CODE
LOW…/react-email/src/components/tailwind/tailwind.spec.tsx822 function renderEmailWithHeadOutsideTailwind() {CODE
LOW…ents/tailwind/utils/css/downlevel-for-email-clients.ts194function downlevelRangeMediaQueries(styleSheet: StyleSheet): void {CODE
LOW…s/tailwind/utils/css/strip-empty-tailwind-vars.spec.ts111function walkDeclarationsInNonInlinableRules(CODE
LOW…nts/tailwind/utils/css/sanitize-non-inlinable-rules.ts21export function sanitizeNonInlinableRules(node: CssNode) {CODE
LOW…components/tailwind/utils/css/sanitize-declarations.ts126function separteShorthandDeclaration(CODE
LOW…utils/tailwindcss/clone-element-with-inlined-styles.ts10export function cloneElementWithInlinedStyles(CODE
LOWpackages/react-email/src/components/button/button.tsx14function computeFontWidthAndSpaceCount(expectedWidth: number) {CODE
LOWpackages/editor/src/ui/editor-focus-scope.spec.tsx17 function ManuallyForwardedRefChild(_, forwardedRef) {CODE
LOWpackages/editor/src/ui/slash-command/root.spec.tsx65async function expectArrowKeysToFollowTheRows() {CODE
LOWpackages/editor/src/ui/inspector/document.tsx268function InspectorDocumentDefaults({CODE
LOW…ditor/src/ui/inspector/utils/resolve-theme-defaults.ts64export function normalizeInlineStyleUnits(CODE
LOW…s/editor/src/ui/inspector/hooks/use-document-colors.ts102function extractColorsFromInlineStyle(CODE
LOWpackages/editor/src/ui/bubble-menu/image-default.tsx27function BubbleMenuImageDefaultInner({CODE
LOWpackages/editor/src/ui/bubble-menu/button-default.tsx24function BubbleMenuButtonDefaultInner({CODE
LOWpackages/editor/src/plugins/image/file-handler.ts6export function createImageFileHandlerPlugin(CODE
LOW…ages/editor/src/plugins/email-theming/normalization.ts116export function inferThemeFromPanelStyles(CODE
LOW…ages/editor/src/plugins/email-theming/normalization.ts141export function normalizeThemePanelStyles(CODE
LOW…kages/editor/src/plugins/email-theming/theme-config.ts55export function themeStylesToPanelOverrides(CODE
LOWpackages/editor/src/utils/styles.ts103export function expandShorthandProperties(CODE
LOWpackages/editor/src/utils/styles.ts271export function ensureBorderStyleFallback(CODE
LOWpackages/editor/src/utils/is-collaboration.ts8export function hasCollaborationExtension(exts: Extensions): boolean {CODE
LOWpackages/editor/src/extensions/container.spec.tsx354 function createFakeLiveblocksExtension(getContent: (schema: any) => any) {CODE
LOWpackages/editor/src/extensions/global-content.ts22function findGlobalContentPositions(doc: Editor['state']['doc']) {CODE
LOWpackages/editor/src/extensions/global-content.ts34function getCachedGlobalContentPosition(doc: Editor['state']['doc']) {CODE
LOWpackages/editor/src/extensions/columns.tsx159function handleNodeSelectionBackspace(CODE
LOWpackages/editor/src/extensions/columns.tsx217function handleBackspaceInsideColumn(CODE
LOW…ditor/src/__tests__/inspector-padding.browser.spec.tsx83async function waitForPaddingInputWithValue(expected: string) {CODE
LOW…s/Community/notifications/papermark-year-in-review.tsx34export default function PapermarkYearInReviewEmail({CODE
LOW…src/app/editor/standalone-editor-inspector/example.tsx15export function StandaloneEditorInspector() {CODE
LOWapps/web/src/webgl/Billboard.tsx19function setupCylinderTextureMapping(CODE
LOWapps/web/src/webgl/getCanvasTexture.js34function calculateCanvasDimensions(CODE
Hallucination Indicators2 hits · 20 pts
SeverityFileLineSnippetContext
CRITICALpackages/ui/src/actions/render-email-by-path.tsx338 const sourceFileAttributeMatches = cause.span.start.file.content.matchAll(CODE
CRITICALpackages/ui/src/actions/render-email-by-path.tsx357 const attributeMatches = cause.span.start.file.content.matchAll(CODE
Over-Commented Block6 hits · 6 pts
SeverityFileLineSnippetContext
LOWexamples/scaleway/next/next-env.d.ts1/// <reference types="next" />COMMENT
LOWexamples/resend/next-env.d.ts1/// <reference types="next" />COMMENT
LOWpackages/ui/src/app/preview/[...slug]/email-frame.tsx21 // - This is a characteristic from Outlook iOSCOMMENT
LOW…t-email/src/components/tailwind/utils/css/constants.ts1// At-rules whose contents are conditional, so their declarations can't beCOMMENT
LOWpackages/editor/src/utils/styles.spec.ts341COMMENT
LOWpackages/editor/src/extensions/container.tsx141 if (newState.doc.eq(oldState.doc)) {COMMENT