AI Slop Code Risk Monitor

vercel-labs/json-render

SlopCodeMonitor badge for vercel-labs/json-render Adjusted legacy signal; badge bands: 25 / 50 / 75 (different from dashboard bands).

The Generative UI framework

1.2 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for vercel-labs/json-render, a TypeScript project with 18,866 GitHub stars. SynthScan examined 202,911 lines of code across 1546 source files, recording 115 pattern matches distributed across 11 syntactic categories. The legacy adjusted pattern signal is 1.2 (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.

1.2
Adjusted Signal
1.2
Raw Pattern Score
100%
Time Factor
2026-10-30
Last Push
18.9K
Stars
TypeScript
Language
202.9K
Lines of Code
1.5K
Files
115
Pattern Hits
2026-10-31
Scan Date
0.01
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 3.2/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 55 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.6/100 · LOW

Are imports declared and package/API names verified? 26 finding(s).

Agent Over-Engineering Ratio 2.9/100 · LOW

Are wrappers, guards, and repeated structures necessary? 59 finding(s).

PR Review Velocity Impact 5.6/100 · LOW

Which changes need focused human review? 115 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 12MEDIUM 30LOW 73

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 115 distinct pattern matches across 11 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.

Decorative Section Separators30 hits · 90 pts
SeverityFileLineSnippetContext
MEDIUMpackages/shadcn/src/components.tsx174 // ── Layout ────────────────────────────────────────────────────────────COMMENT
MEDIUMpackages/shadcn/src/components.tsx437 // ── Data Display ──────────────────────────────────────────────────────COMMENT
MEDIUMpackages/shadcn/src/components.tsx665 // ── Form Inputs ───────────────────────────────────────────────────────COMMENT
MEDIUMpackages/shadcn/src/components.tsx1002 // ── Actions ───────────────────────────────────────────────────────────COMMENT
MEDIUMpackages/yaml/src/prompt.ts31// ── Zod introspection (local, minimal) ──────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx98 // ── Primitives ─────────────────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx229 // ── Lights ─────────────────────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx274 // ── Container ──────────────────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx289 // ── Model ──────────────────────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx304 // ── Environment ────────────────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx339 // ── Text ───────────────────────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx391 // ── Effects / Atmosphere ──────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx449 // ── Special Materials ───────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx538 // ── Extended Geometry ───────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx577 // ── Shadows / Staging ───────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx654 // ── Crazy / Magic ─────────────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx689 // ── Post-Processing ────────────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx740 // ── Animation Wrappers ──────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx914 // ── Camera / Controls ──────────────────────────────────────────────COMMENT
MEDIUMpackages/react-three-fiber/src/components.tsx948 // ── Gaussian Splatting ──────────────────────────────────────────────COMMENT
MEDIUMapps/web/lib/render/registry.tsx116 // ── Layout ────────────────────────────────────────────────────────COMMENT
MEDIUMapps/web/lib/render/registry.tsx395 // ── Data Display ──────────────────────────────────────────────────COMMENT
MEDIUMapps/web/lib/render/registry.tsx820 // ── Charts ────────────────────────────────────────────────────────COMMENT
MEDIUMapps/web/lib/render/registry.tsx1000 // ── Form Inputs ───────────────────────────────────────────────────COMMENT
MEDIUMapps/web/lib/render/registry.tsx1267 // ── Actions ───────────────────────────────────────────────────────COMMENT
MEDIUMapps/web/lib/render/catalog.ts16 // ── Layout ──────────────────────────────────────────────────────────COMMENT
MEDIUMapps/web/lib/render/catalog.ts134 // ── Data Display ────────────────────────────────────────────────────COMMENT
MEDIUMapps/web/lib/render/catalog.ts303 // ── Charts ──────────────────────────────────────────────────────────COMMENT
MEDIUMapps/web/lib/render/catalog.ts330 // ── Form Inputs ─────────────────────────────────────────────────────COMMENT
MEDIUMapps/web/lib/render/catalog.ts447 // ── Actions ─────────────────────────────────────────────────────────COMMENT
Synthetic Comment Markers12 hits · 82 pts
SeverityFileLineSnippetContext
HIGH…lls/technical-writer/references/editorial-standards.md3Apply these standards to the passage and its surrounding section. They are editing criteria, not proof of authorship. A CODE
HIGHexamples/stripe-app/README.md3[Stripe Apps](https://stripe.com/docs/stripe-apps) examples demonstrating how to use json-render to build dynamic, AI-geCODE
HIGHexamples/stripe-app/drawer-app/README.md3A [Stripe App](https://stripe.com/docs/stripe-apps) example demonstrating how to use json-render to build dynamic, AI-geCODE
HIGHpackages/ink/src/schema.ts11 // What the AI-generated SPEC looks likeCOMMENT
HIGHpackages/ink/src/components/standard.tsx18// Props that must never be forwarded from AI-generated specs to React/Ink elements.COMMENT
HIGHpackages/ink/src/components/standard.tsx39// and block dangerous or web-only props from AI-generated specs.COMMENT
HIGHpackages/svelte/src/schema.ts12 // What the AI-generated SPEC looks likeCOMMENT
HIGHpackages/react-native/src/schema.ts12 // What the AI-generated SPEC looks likeCOMMENT
HIGHpackages/vue/src/schema.ts12 // What the AI-generated SPEC looks likeCOMMENT
HIGHpackages/solid/src/schema.ts12 // What the AI-generated SPEC looks likeCOMMENT
HIGHpackages/react/src/schema.ts12 // What the AI-generated SPEC looks likeCOMMENT
HIGHpackages/remotion/src/schema.ts146 // What the AI-generated SPEC looks like (timeline-based)COMMENT
Fake / Example Data25 hits · 25 pts
SeverityFileLineSnippetContext
LOWexamples/next-website-builder/lib/website-catalog.ts23 brand: "Acme Inc",CODE
LOWexamples/next-website-builder/lib/website-catalog.ts162 brand: "Acme Inc",CODE
LOWexamples/next-website-builder/lib/default-spec.ts6 default: "Acme Inc",CODE
LOWexamples/next-website-builder/lib/default-spec.ts32 brand: "Acme Inc",CODE
LOWexamples/next-website-builder/lib/default-spec.ts48 brand: "Acme Inc",CODE
LOWexamples/react-pdf/lib/examples.ts24 props: { title: "Invoice #1042", author: "Acme Corp", subject: null },CODE
LOWexamples/react-pdf/lib/examples.ts68 text: "Acme Corp",CODE
LOWexamples/react-pdf/lib/examples.ts163 text: "Acme Corp",CODE
LOWexamples/react-pdf/lib/examples.ts1089 author: "Acme Corp",CODE
LOWexamples/react-pdf/lib/examples.ts1144 text: "Acme Corp",CODE
LOWexamples/no-ai/lib/examples.ts587 placeholder: "Jane Doe",CODE
LOWpackages/directives/src/directives.test.ts227 ).toBe("John Doe");CODE
LOWpackages/shadcn-svelte/src/catalog.ts209 example: { name: "Jane Doe", size: "md" },CODE
LOWpackages/core/README.md400 "placeholder": "Email"CODE
LOWpackages/core/src/props.test.ts526 ).toBe("Jane Doe");CODE
LOWpackages/vue/README.md157 "placeholder": "Enter name"CODE
LOWpackages/vue/src/dynamic-forms.test.ts218 expect(wrapper.find("[data-testid='text']").text()).toBe("Jane Doe");CODE
LOWpackages/react-pdf/src/catalog.ts23 example: { title: "Invoice #1234", author: "Acme Corp" },CODE
LOWpackages/shadcn/src/catalog.ts212 example: { name: "Jane Doe", size: "md" },CODE
LOWpackages/solid/src/dynamic-forms.test.tsx363 expect(screen.getByTestId("text").textContent).toBe("Jane Doe");CODE
LOWpackages/react/README.md148 "placeholder": "Enter name"CODE
LOWpackages/react/src/dynamic-forms.test.tsx217 expect(screen.getByTestId("text").textContent).toBe("Jane Doe");CODE
LOWskills/react-native/SKILL.md128 "placeholder": "Email"CODE
LOWskills/react/SKILL.md161 "placeholder": "Email"CODE
LOWapps/web/lib/render/catalog.ts201 example: { name: "Jane Doe", size: "md" },CODE
Hyper-Verbose Identifiers25 hits · 25 pts
SeverityFileLineSnippetContext
LOWexamples/chat/components/ui/chart.tsx312function getPayloadConfigFromPayload(CODE
LOWexamples/game-engine/components/game/player.tsx271function AnimatedCharacterModelInner({CODE
LOWexamples/game-engine/lib/defaults.ts37export function createDefaultAmbientLight(): SceneObject {CODE
LOWexamples/game-engine/lib/defaults.ts66export function createDefaultDirectionalLight(): SceneObject {CODE
LOWexamples/game-engine/lib/defaults.ts123export function createDefaultSceneSettings(): SceneSettings {CODE
LOWexamples/game-engine/lib/defaults.ts143export function createDefaultEnvironmentSettings(): EnvironmentSettings {CODE
LOWexamples/dashboard/components/ui/chart.tsx312function getPayloadConfigFromPayload(CODE
LOWpackages/ink/src/renderer.tsx496function ConfirmationDialogManager() {CODE
LOWpackages/svelte/src/contexts/ValidationProvider.svelte56 export function getOptionalValidationContext(): ValidationContext | null {CODE
LOWpackages/core/src/schema.ts484function buildZodSchemaFromDefinition(CODE
LOWpackages/core/src/schema.ts1188function generateExamplePropsFromZod(CODE
LOWpackages/core/src/schema.test.ts706 function allObjectsHaveAdditionalPropertiesFalse(obj: unknown): boolean {CODE
LOWpackages/core/src/schema.test.ts717 function allObjectPropertiesRequired(obj: unknown): boolean {CODE
LOWpackages/core/src/schema.test.ts799 function noAdditionalPropertiesSchema(obj: unknown): boolean {CODE
LOWpackages/core/src/devtools-flag.ts59function notifyDevtoolsActiveChange() {CODE
LOWpackages/core/src/types.ts332export function resolveRepeatItemStatePath(CODE
LOWpackages/core/src/types.ts1104export function createJsonRenderTransform(): TransformStream<CODE
LOWpackages/react-native/src/renderer.tsx493function ConfirmationDialogManager() {CODE
LOWpackages/react-native/src/components/standard.tsx969export function createStandardActionHandlers(options?: {CODE
LOWpackages/vue/src/renderer.ts196async function resolveAndExecuteBindings(CODE
LOWpackages/solid/src/renderer.tsx597function ConfirmationDialogManager() {CODE
LOWpackages/mcp/src/server.ts73export async function registerJsonRenderResource(CODE
LOWpackages/codegen/src/traverse.ts127function collectPathsFromCondition(CODE
LOWpackages/react/src/renderer.tsx1010function ConfirmationDialogManager() {CODE
LOWapps/web/lib/jev/response.ts24export function createCompositionResponse(CODE
Structural Annotation Overuse10 hits · 15 pts
SeverityFileLineSnippetContext
LOWexamples/chat/lib/tools/weather.ts18 // Step 1: Geocode the city name to coordinatesCOMMENT
LOWexamples/chat/lib/tools/weather.ts42 // Step 2: Get weather dataCOMMENT
LOWexamples/svelte-chat/src/lib/tools/weather.ts18 // Step 1: Geocode the city name to coordinatesCOMMENT
LOWexamples/svelte-chat/src/lib/tools/weather.ts42 // Step 2: Get weather dataCOMMENT
LOWskills/skill-creator/SKILL.md215### Step 1: Understanding the Skill with Concrete ExamplesCOMMENT
LOWskills/skill-creator/SKILL.md232### Step 2: Planning the Reusable Skill ContentsCOMMENT
LOWskills/skill-creator/SKILL.md256### Step 3: Initializing the SkillCOMMENT
LOWskills/skill-creator/SKILL.md279### Step 4: Edit the SkillCOMMENT
LOWskills/skill-creator/SKILL.md320### Step 5: Packaging a SkillCOMMENT
LOWskills/skill-creator/SKILL.md347### Step 6: IterateCOMMENT
Verbosity Indicators4 hits · 6 pts
SeverityFileLineSnippetContext
LOWexamples/chat/lib/tools/weather.ts18 // Step 1: Geocode the city name to coordinatesCOMMENT
LOWexamples/chat/lib/tools/weather.ts42 // Step 2: Get weather dataCOMMENT
LOWexamples/svelte-chat/src/lib/tools/weather.ts18 // Step 1: Geocode the city name to coordinatesCOMMENT
LOWexamples/svelte-chat/src/lib/tools/weather.ts42 // Step 2: Get weather dataCOMMENT
Excessive Try-Catch Wrapping4 hits · 4 pts
SeverityFileLineSnippetContext
LOWskills/skill-creator/scripts/init_skill.py217 except Exception as e:CODE
LOWskills/skill-creator/scripts/init_skill.py232 except Exception as e:CODE
LOWskills/skill-creator/scripts/init_skill.py259 except Exception as e:CODE
LOWskills/skill-creator/scripts/package_skill.py80 except Exception as e:CODE
Over-Commented Block2 hits · 2 pts
SeverityFileLineSnippetContext
LOWpackages/core/src/devtools-flag.ts1// =============================================================================COMMENT
LOWpackages/core/src/action-observer.ts1// =============================================================================COMMENT
Redundant / Tautological Comments1 hit · 2 pts
SeverityFileLineSnippetContext
LOWskills/skill-creator/scripts/init_skill.py208 # Check if directory already existsCOMMENT
Deep Nesting1 hit · 1 pts
SeverityFileLineSnippetContext
LOWskills/skill-creator/scripts/package_skill.py19CODE
Unused Imports1 hit · 1 pts
SeverityFileLineSnippetContext
LOWskills/skill-creator/scripts/quick_validate.py7CODE