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AI Slop Code RIsk Monitor

google/auto

A collection of source code generators for Java.

8.9 Moderate pattern signal View on GitHub

Maintenance and Governance Review

This report summarizes scanner evidence for google/auto, a Java project with 10,561 GitHub stars. SynthScan examined 68,080 lines of code across 363 source files, recording 62 pattern matches distributed across 2 syntactic categories. The legacy adjusted pattern signal is 8.9 (Moderate 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.

8.9
Adjusted Signal
8.9
Raw Pattern Score
100%
Time Factor
2026-10-10
Last Push
10.6K
Stars
Java
Language
68.1K
Lines of Code
363
Files
62
Pattern Hits
2026-10-12
Scan Date
0.12
HC Hit Rate

Risk Review · v3

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

Cognitive Ownership Risk 1.2/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 17 finding(s).

Hallucinated Dependency & Supply Chain Risk 35.2/100 · MEDIUM

Are imports declared and package/API names verified? 45 finding(s).

Agent Over-Engineering Ratio 0.0/100 · LOW

Are wrappers, guards, and repeated structures necessary? 0 finding(s).

PR Review Velocity Impact 29.0/100 · MEDIUM

Which changes need focused human review? 62 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 45HIGH 0MEDIUM 0LOW 17

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 62 distinct pattern matches across 2 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.

Hallucination Indicators45 hits · 590 pts
SeverityFileLineSnippetContext
CRITICAL…value/extension/toprettystring/ToPrettyStringTest.java682 com.google.common.base.Optional.of("hello, world"));CODE
CRITICAL…value/extension/toprettystring/ToPrettyStringTest.java694 new AutoValue_ToPrettyStringTest_GuavaOptional(com.google.common.base.Optional.absent());CODE
CRITICAL…value/extension/toprettystring/ToPrettyStringTest.java707 com.google.common.base.Optional.of("optional\nwith\nnewline"));CODE
CRITICAL…value/extension/toprettystring/ToPrettyStringTest.java749 com.google.common.base.Optional.of(CODE
CRITICAL…src/test/java/com/google/auto/value/AutoValueTest.java1396 Optional autoOptional = Optional.create(com.google.common.base.Optional.absent());CODE
CRITICAL…src/test/java/com/google/auto/value/AutoValueTest.java1397 assertEquals(com.google.common.base.Optional.absent(), autoOptional.getOptional());CODE
CRITICAL…src/test/java/com/google/auto/value/AutoValueTest.java1416 InheritsNestedType.create(com.google.common.base.Optional.absent());CODE
CRITICAL…src/test/java/com/google/auto/value/AutoValueTest.java1417 assertEquals(com.google.common.base.Optional.absent(), inheritsNestedType.getOptional());CODE
CRITICAL…src/test/java/com/google/auto/value/AutoValueTest.java1693 .setOptionalString(com.google.common.base.Optional.of("foo"))CODE
CRITICAL…src/test/java/com/google/auto/value/AutoValueTest.java1787 .setOptionalString(com.google.common.base.Optional.of("foo"))CODE
CRITICAL…est/java/com/google/auto/value/AutoValueJava8Test.java1300 .setMaybeString(com.google.common.base.Optional.of("foo"))CODE
CRITICAL…est/java/com/google/auto/value/AutoValueJava8Test.java1306 .setMaybeString(com.google.common.base.Optional.absent())CODE
CRITICAL⚡…est/java/com/google/auto/value/AutoAnnotationTest.java533 "@com.google.auto.value.AutoAnnotationTest.Everything("CODE
CRITICAL⚡…est/java/com/google/auto/value/AutoAnnotationTest.java536 + "anAnnotation=@com.google.auto.value.annotations.StringValues([\"whatever\"]), "CODE
CRITICAL⚡…est/java/com/google/auto/value/AutoAnnotationTest.java545 + "@com.google.auto.value.annotations.StringValues([]), "CODE
CRITICAL⚡…est/java/com/google/auto/value/AutoAnnotationTest.java546 + "@com.google.auto.value.annotations.StringValues([\"foo\", \"bar\"])"CODE
CRITICAL…est/java/com/google/auto/value/AutoAnnotationTest.java562 "@com.google.auto.value.annotations.StringValues("CODE
CRITICAL…ava/com/google/auto/value/AutoValueNotEclipseTest.java37 // org.eclipse.jdt.internal.compiler.apt.dispatch.RoundDispatcher.handleProcessor(RoundDispatcher.java:169)COMMENT
CRITICAL…c/test/java/com/google/auto/value/AutoBuilderTest.java913 return com.google.common.base.Optional.fromNullable(aString2);CODE
CRITICAL…c/test/java/com/google/auto/value/AutoBuilderTest.java969 .setAString2(com.google.common.base.Optional.of("foo"))CODE
CRITICAL…c/test/java/com/google/auto/value/AutoBuilderTest.java975 built.toBuilder().setAString2(com.google.common.base.Optional.absent()).build();CODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java304 .isEqualTo("@com.google.auto.common.AnnotationMirrorsTest.Stringy(\"foo\")");CODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java309 "@com.google.auto.common.AnnotationMirrorsTest.AnnotatedOuter(@com.google.auto.common.AnnotationMirrorsTest.CODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java312 "@com.google.auto.common.AnnotationMirrorsTest.Outer(com.google.auto.common.AnnotationMirrorsTest.SimpleEnumCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java315 "@com.google.auto.common.AnnotationMirrorsTest.Outer(com.google.auto.common.AnnotationMirrorsTest.SimpleEnumCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java318 "@com.google.auto.common.AnnotationMirrorsTest.Outer(com.google.auto.common.AnnotationMirrorsTest.SimpleEnumCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java321 "@com.google.auto.common.AnnotationMirrorsTest.AnnotatedOuter(@com.google.auto.common.AnnotationMirrorsTest.CODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java324 "@com.google.auto.common.AnnotationMirrorsTest.AnnotatedOuter(@com.google.auto.common.AnnotationMirrorsTest.CODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java327 "@com.google.auto.common.AnnotationMirrorsTest.OuterWithValueArray({@com.google.auto.common.AnnotationMirrorCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java328 + " @com.google.auto.common.AnnotationMirrorsTest.DefaultingOuter(com.google.auto.common.AnnotationMirroCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java332 .isEqualTo("@com.google.auto.common.AnnotationMirrorsTest.OuterWithValueArray({})");CODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java335 "@com.google.auto.common.AnnotationMirrorsTest.OuterWithValueArray({@com.google.auto.common.AnnotationMirrorCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java339 "@com.google.auto.common.AnnotationMirrorsTest.OuterWithValueArray({@com.google.auto.common.AnnotationMirrorCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java340 + " @com.google.auto.common.AnnotationMirrorsTest.DefaultingOuter(com.google.auto.common.AnnotationMirroCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java343 "@com.google.auto.common.AnnotationMirrorsTest.OuterWithValueArray({@com.google.auto.common.AnnotationMirrorCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java344 + " @com.google.auto.common.AnnotationMirrorsTest.DefaultingOuter(com.google.auto.common.AnnotationMirroCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java347 "@com.google.auto.common.AnnotationMirrorsTest.OuterWithValueArray(@com.google.auto.common.AnnotationMirrorsCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java350 "@com.google.auto.common.AnnotationMirrorsTest.OuterWithValueArray(@com.google.auto.common.AnnotationMirrorsCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java353 "@com.google.auto.common.AnnotationMirrorsTest.OuterWithValueArray(@com.google.auto.common.AnnotationMirrorsCODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java356 "@com.google.auto.common.AnnotationMirrorsTest.DefaultingOuter(com.google.auto.common.AnnotationMirrorsTest.CODE
CRITICAL⚡…java/com/google/auto/common/AnnotationMirrorsTest.java361 "@com.google.auto.common.AnnotationMirrorsTest.DefaultingOuter(com.google.auto.common.AnnotationMirrorsTest.CODE
CRITICAL⚡…/java/com/google/auto/common/AnnotationValuesTest.java363 "@com.google.auto.common.AnnotationValuesTest.InsideAnnotation(19)")CODE
CRITICAL⚡…/java/com/google/auto/common/AnnotationValuesTest.java366 "{@com.google.auto.common.AnnotationValuesTest.InsideAnnotation(20),"CODE
CRITICAL⚡…/java/com/google/auto/common/AnnotationValuesTest.java367 + " @com.google.auto.common.AnnotationValuesTest.InsideAnnotation(21)}")CODE
CRITICAL…/java/com/google/auto/common/AnnotationValuesTest.java405 "@com.google.auto.common.AnnotationValuesTest.MultiValueAnnotation(",CODE
Over-Commented Block17 hits · 17 pts
SeverityFileLineSnippetContext
LOW…ava/com/google/auto/value/processor/NullablesTest.java61 @Retention(RetentionPolicy.RUNTIME)COMMENT
LOW…/com/google/auto/value/processor/ExtensionContext.java121 // Kotlin classes have an intrinsic @Metadata annotation generatedCOMMENT
LOW…ogle/auto/value/processor/BuilderMethodClassifier.java581 */COMMENT
LOW…google/auto/value/processor/AutoValueishProcessor.java1121 }COMMENT
LOW…om/google/auto/value/processor/AutoValueProcessor.java181 + " interface; try using @AutoAnnotation or @AutoBuilder instead");COMMENT
LOW…om/google/auto/value/processor/AutoValueProcessor.java301 writeSourceFile(subclass, text, type);COMMENT
LOW…/java/com/google/auto/value/processor/Reformatter.java61 // Consecutive spaces at the start of a line are attached to the previous newline, andCOMMENT
LOW…om/google/auto/value/processor/AutoOneOfProcessor.java81 // This covers the methods in the class itself and the ones it inherits from supertypes.COMMENT
LOW…/google/auto/value/processor/AutoBuilderProcessor.java121 // }COMMENT
LOW…/google/auto/value/processor/AutoBuilderProcessor.java141 // We also "defer" MyAnnotBuilder so that it will be considered again on the next round. At thatCOMMENT
LOW…e/processor/BuilderMethodClassifierForAutoBuilder.java121 // static <E> Set<E> singletonSet(E elem) {...}COMMENT
LOW…e/processor/BuilderMethodClassifierForAutoBuilder.java141 // return types of methods (which are what we want to rewrite in that case). But that doesn'tCOMMENT
LOW…le/auto/value/processor/BuilderRequiredProperties.java61 // handling optional Kotlin parameters. Then the bitmasks are different: we have one bit for everyCOMMENT
LOW…le/auto/value/processor/PropertyBuilderClassifier.java201 * one-dimensional collections like {@code ImmutableList} and {@code ImmutableSet}, and it isCOMMENT
LOW…on/src/main/java/com/google/auto/common/MoreTypes.java101 return TypeEquivalence.INSTANCE;COMMENT
LOW…on/src/main/java/com/google/auto/common/Overrides.java81COMMENT
LOW…on/src/main/java/com/google/auto/common/Overrides.java161 // ...overrides from C another method mI declared in interface I. We've already checkedCOMMENT