AI Slop Code Risk Monitor

projen/projen

SlopCodeMonitor badge for projen/projen Adjusted legacy signal; badge bands: 25 / 50 / 75 (different from dashboard bands).

Rapidly build modern applications with advanced configuration management

0.3 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for projen/projen, a TypeScript project with 2,961 GitHub stars. SynthScan examined 336,325 lines of code across 623 source files, recording 70 pattern matches distributed across 5 syntactic categories. The legacy adjusted pattern signal is 0.3 (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.

0.3
Adjusted Signal
0.3
Raw Pattern Score
100%
Time Factor
2026-10-31
Last Push
3.0K
Stars
TypeScript
Language
336.3K
Lines of Code
623
Files
70
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 0.8/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 42 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.6/100 · LOW

Are imports declared and package/API names verified? 28 finding(s).

Agent Over-Engineering Ratio 0.5/100 · LOW

Are wrappers, guards, and repeated structures necessary? 31 finding(s).

PR Review Velocity Impact 1.4/100 · LOW

Which changes need focused human review? 70 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 6LOW 62

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 70 distinct pattern matches across 5 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 Identifiers31 hits · 31 pts
SeverityFileLineSnippetContext
LOWtest/javascript/node-package-inference.test.ts15function createProjectWithPackageJson(CODE
LOWtest/docker-compose/docker-compose.test.ts954function assertDockerComposeFileValidates(dir: string) {CODE
LOWdocusaurus/sidebars/api-sidebar.js4function sortGroupsInFrontOfTLTopics(a, b) {CODE
LOWsrc/inventory.ts482function isPrimitiveOrPrimitiveArray(type: JsiiPropertyType) {CODE
LOWsrc/ai-instructions.ts255function bestPracticesInstructions(project: Project): string {CODE
LOWsrc/runner-options.ts57export function filteredWorkflowRunsOnOptions(CODE
LOWsrc/util.ts89export function decamelizeKeysRecursively(CODE
LOWsrc/util.ts455export function assertExecutablePermissions(CODE
LOWsrc/awscdk/awscdk-deps.ts242function determineFrameworkVersion(options: AwsCdkDepsOptions) {CODE
LOWsrc/awscdk/internal.ts59export function toDeterministicSingletonUuid(CODE
LOWsrc/util/path.ts19export function ensureRelativePathStartsWithDot(path: string): string {CODE
LOWsrc/util/path.ts67export function realpathOfClosestExisting(p: string): string {CODE
LOWsrc/util/synth.ts170function isCommentArrayWithoutComments(obj: any): boolean {CODE
LOWsrc/cdktf/cdktf-construct.ts39 function getDefaultConstructVersion() {CODE
LOWsrc/release/publisher.ts1526export function isAwsCodeArtifactRegistry(CODE
LOWsrc/release/publisher.ts1548function awsCodeArtifactInfoFromUrl(url?: string): AwsCodeArtifactInfo {CODE
LOWsrc/github/private/util.ts47export function projectPathRelativeToRepoRoot(project: Project): string {CODE
LOWsrc/javascript/util.ts69export function executeCommandPriorInstallation(CODE
LOWsrc/javascript/util.ts128export function extractCodeArtifactDetails(registryUrl: string) {CODE
LOWsrc/javascript/util.ts173export function tryResolveModuleManifestPath(CODE
LOWsrc/javascript/util.ts190export function tryResolveManifestPathFromDefaultExport(CODE
LOWsrc/javascript/util.ts215export function tryResolveManifestPathFromPath(CODE
LOWsrc/javascript/util.ts235export function tryResolveManifestPathFromSearch(CODE
LOWsrc/javascript/util.ts292export function tryResolveDependencyVersion(CODE
LOWsrc/javascript/util.ts396export function installedVersionProbablyMatches(CODE
LOWsrc/javascript/render-options.ts288function renderCommentedOptionsByModule(CODE
LOWsrc/javascript/render-options.ts329function renderCommentedOptionsInOrder(CODE
LOWsrc/javascript/node-package.ts2578function inferPackageManagerFromPkgJson(CODE
LOWsrc/javascript/node-package.ts2623function inferPackageManagerFromLockfile(CODE
LOWsrc/docker-compose/docker-compose-render.ts193function shouldDecamelizeDockerComposeKey(path: string[]) {CODE
LOWsrc/cdk8s/cdk8s-deps.ts342function determineFrameworkVersion(options: Cdk8sDepsOptions) {CODE
Fake / Example Data26 hits · 26 pts
SeverityFileLineSnippetContext
LOWtest/license.test.ts30 copyrightOwner: "John Doe",CODE
LOWtest/license.test.ts41 copyrightOwner: "John Doe",CODE
LOWtest/license.test.ts64 copyrightOwner: "John Doe",CODE
LOWtest/license.test.ts75 copyrightOwner: "John Doe",CODE
LOWtest/ai-instructions.test.ts44 authorName: "John Doe",CODE
LOWtest/toml.test.ts51 authorName: "John Doe",CODE
LOWtest/cli/macros.test.ts63 jest.spyOn(git, "tryCapture").mockReturnValue("Jane Doe");CODE
LOWtest/cli/macros.test.ts64 expect(tryProcessMacro(cwd, "$GIT_USER_NAME")).toBe("Jane Doe");CODE
LOWtest/github/pull-request-lint.test.ts90 contributorStatement: "Lorem ipsum dolor sit amet",CODE
LOWtest/github/pull-request-lint.test.ts90 contributorStatement: "Lorem ipsum dolor sit amet",CODE
LOWtest/github/pull-request-lint.test.ts105 const contributorStatement = "Lorem ipsum dolor sit amet";CODE
LOWtest/github/pull-request-lint.test.ts105 const contributorStatement = "Lorem ipsum dolor sit amet";CODE
LOWtest/github/pull-request-lint.test.ts126 const contributorStatement = "Lorem ipsum dolor sit amet";CODE
LOWtest/github/pull-request-lint.test.ts126 const contributorStatement = "Lorem ipsum dolor sit amet";CODE
LOWtest/github/pull-request-lint.test.ts145 const contributorStatement = "Lorem ipsum dolor sit amet";CODE
LOWtest/github/pull-request-lint.test.ts145 const contributorStatement = "Lorem ipsum dolor sit amet";CODE
LOWtest/javascript/license-checker.test.ts115 copyrightOwner: "Jane Doe",CODE
LOWtest/javascript/upgrade-dependencies.test.ts738 email: "foo@bar.com",CODE
LOWtest/javascript/upgrade-dependencies.test.ts751 'git config user.email "foo@bar.com"',CODE
LOWtest/cdk8s/cdk8s-construct.test.ts13 authorAddress: "test@test.com",CODE
LOWtest/cdk8s/cdk8s-construct.test.ts32 authorAddress: "test@test.com",CODE
LOWtest/cdk8s/cdk8s-construct.test.ts53 authorAddress: "test@test.com",CODE
LOWtest/cdk8s/cdk8s-construct.test.ts72 authorAddress: "test@test.com",CODE
LOWtest/cdk8s/cdk8s-construct.test.ts100 authorAddress: "test@test.com",CODE
LOWtest/cdk8s/cdk8s-construct.test.ts122 authorAddress: "test@test.com",CODE
LOWtest/cdk8s/cdk8s-construct.test.ts145 authorAddress: "test@test.com",CODE
Self-Referential Comments6 hits · 18 pts
SeverityFileLineSnippetContext
MEDIUMscripts/integ-java.sh33# Create a Maven project structureCOMMENT
MEDIUMscripts/integ-java.sh83# Create a simple projenrc.javaCOMMENT
MEDIUMscripts/integ-common.sh68# Create a temp directory and set up cleanup trapCOMMENT
MEDIUMscripts/integ-go.sh27# Create a simple projenrc.go (Go doesn't recognize dotfiles as source)COMMENT
MEDIUMscripts/integ-eject.sh14# Create a new TypeScript projectCOMMENT
MEDIUMscripts/integ-node.sh14# Create a new TypeScript projectCOMMENT
Magic Placeholder Names2 hits · 12 pts
SeverityFileLineSnippetContext
HIGHdocs/introduction/getting-started.md289 'API_KEY=your_api_key',CODE
HIGHdocs/custom/custom-projects.md595//npm.pkg.github.com/:_authToken=YOUR_TOKEN_HERECOMMENT
Over-Commented Block5 hits · 5 pts
SeverityFileLineSnippetContext
LOWprojenrc/integ-test.ts121 // Create individual tasks for each languageCOMMENT
LOWsrc/util/exec.ts1import * as child_process from "child_process";COMMENT
LOWsrc/util/exec.ts221 */COMMENT
LOWsrc/typescript/typescript.ts861 ? undefinedCOMMENT
LOWsrc/github/auto-queue.ts181 },COMMENT