AI Slop Code Risk Monitor

rust-lang/mdBook

Name: rust-lang/mdBook — Rust Code Quality & Security Review | AI Slop Code Risk Monitor
Creator: AI Slop Code Risk Monitor

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

Create book from markdown files. Like Gitbook but implemented in Rust

1.5 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for rust-lang/mdBook, a Rust project with 22,254 GitHub stars. SynthScan examined 33,140 lines of code across 650 source files, recording 51 pattern matches distributed across 2 syntactic categories. The legacy adjusted pattern signal is 1.5 (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.

1.5

Adjusted Signal

1.5

Raw Pattern Score

100%

Time Factor

2026-10-30

Last Push

22.3K

Stars

Rust

Language

33.1K

Lines of Code

650

Files

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 6.4/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 44 finding(s).

Hallucinated Dependency & Supply Chain Risk 1.1/100 · LOW

Are imports declared and package/API names verified? 7 finding(s).

Agent Over-Engineering Ratio 0.0/100 · LOW

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

PR Review Velocity Impact 7.4/100 · LOW

Which changes need focused human review? 51 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 0MEDIUM 0LOW 51

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 51 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.

Over-Commented Block44 hits · 44 pts

Severity	File	Line	Snippet	Context
LOW	crates/mdbook-core/src/config.rs	1	//! Mdbook's configuration system.	COMMENT
LOW	crates/mdbook-core/src/config.rs	21	//! authors = ["Michael-F-Bryan"]	COMMENT
LOW	crates/mdbook-core/src/config.rs	61	#[serde(default, deny_unknown_fields)]	COMMENT
LOW	crates/mdbook-core/src/config.rs	121	/// created by removing the `MDBOOK_` prefix and turning the resulting	COMMENT
LOW	crates/mdbook-core/src/config.rs	261	/// Set a config key, clobbering any existing values along the way.	COMMENT
LOW	crates/mdbook-core/src/config.rs	341	#[serde(default, rename_all = "kebab-case", deny_unknown_fields)]	COMMENT
LOW	crates/mdbook-core/src/config.rs	461	}	COMMENT
LOW	crates/mdbook-core/src/config.rs	481	E2021,	COMMENT
LOW	crates/mdbook-core/src/config.rs	501	pub preferred_dark_theme: Option<BuiltinTheme>,	COMMENT
LOW	crates/mdbook-core/src/config.rs	521	pub code: Code,	COMMENT
LOW	crates/mdbook-core/src/config.rs	541	/// as required by GitHub Pages (see [*Managing a custom domain for your	COMMENT
LOW	crates/mdbook-core/src/config.rs	641	}	COMMENT
LOW	crates/mdbook-core/src/config.rs	701	pub struct Search {	COMMENT
LOW	crates/mdbook-core/src/config.rs	781		COMMENT
LOW	crates/mdbook-core/src/book.rs	1	//! A tree structure representing a book.	COMMENT
LOW	crates/mdbook-core/src/book.rs	141	pub struct Chapter {	COMMENT
LOW	crates/mdbook-core/src/utils/fs.rs	41	///	COMMENT
LOW	crates/mdbook-core/src/utils/fs.rs	181		COMMENT
LOW	crates/mdbook-renderer/src/lib.rs	21		COMMENT
LOW	crates/mdbook-renderer/src/lib.rs	41	/// Which version of `mdbook` did this come from (as written in `mdbook`'s	COMMENT
LOW	crates/mdbook-html/src/html/tree.rs	161	pub(crate) struct MarkdownTreeBuilder<'opts, 'event, EventIter> {	COMMENT
LOW	crates/mdbook-html/src/html/tree.rs	181	table_alignments: Vec<Alignment>,	COMMENT
LOW	crates/mdbook-html/src/html/mod.rs	1	//! HTML rendering support.	COMMENT
LOW	crates/mdbook-markdown/src/lib.rs	1	//! Markdown processing used in mdBook.	COMMENT
LOW	crates/mdbook-driver/src/lib.rs	1	//! High-level library for running mdBook.	COMMENT
LOW	crates/mdbook-driver/src/lib.rs	21	//! - [`mdbook_html`]: The HTML renderer.	COMMENT
LOW	crates/mdbook-driver/src/lib.rs	41	//! let root_dir = "/path/to/book/root";	COMMENT
LOW	crates/mdbook-driver/src/mdbook.rs	121	/// BookItem::Chapter(ref chapter) => {},	COMMENT
LOW	crates/mdbook-driver/src/mdbook.rs	141	/// and its accompanying directory structure.	COMMENT
LOW	crates/mdbook-driver/src/mdbook.rs	341	if !chapter_found {	COMMENT
LOW	crates/mdbook-driver/src/mdbook.rs	361	/// Otherwise if there are multiple:	COMMENT
LOW	crates/mdbook-driver/src/builtin_preprocessors/links.rs	21	///	COMMENT
LOW	crates/mdbook-preprocessor/src/lib.rs	21	pub use mdbook_core::errors;	COMMENT
LOW	crates/mdbook-summary/src/lib.rs	21	///	COMMENT
LOW	crates/mdbook-summary/src/lib.rs	41	/// will be numbered and can be nested, resulting in a nice hierarchy (chapters,	COMMENT
LOW	crates/mdbook-summary/src/lib.rs	141	fn from(other: Link) -> SummaryItem {	COMMENT
LOW	crates/mdbook-summary/src/lib.rs	161	/// part ::= title dotted_item+	COMMENT
LOW	…/includes/all_includes/src/nested-test-with-anchors.rs	1	// This is a test of includes with anchors.	COMMENT
LOW	tests/testsuite/rendering/hidelines/src/hide-lines.md	21	#	COMMENT
LOW	…s/testsuite/rendering/header_links/src/header_links.md	1	# Header Links	COMMENT
LOW	tests/gui/books/sidebar-scroll/src/chapter_35.md	1	# Chapter 35	COMMENT
LOW	tests/gui/books/sidebar-scroll/src/chapter_35.md	21	## Heading S	COMMENT
LOW	tests/gui/books/sidebar-scroll/src/chapter_10.md	1	# Chapter 10	COMMENT
LOW	tests/gui/books/sidebar-scroll/src/chapter_10.md	21	## Heading S	COMMENT

Fake / Example Data7 hits · 7 pts

Severity	File	Line	Snippet	Context
LOW	guide/src/format/configuration/general.md	10	authors = ["John Doe"]	CODE
LOW	guide/src/format/configuration/general.md	59	authors = ["John Doe", "Jane Doe"]	CODE
LOW	guide/src/format/configuration/general.md	59	authors = ["John Doe", "Jane Doe"]	CODE
LOW	guide/src/format/configuration/renderers.md	93	authors = ["John Doe", "Jane Doe"]	CODE
LOW	guide/src/format/configuration/renderers.md	93	authors = ["John Doe", "Jane Doe"]	CODE
LOW	…e/includes/all_includes/expected/multiline-issues.html	20	<p>Lorum ipsum dolor sit amet.</p>	CODE
LOW	…estsuite/includes/all_includes/src/multiline/issues.md	15	Lorum ipsum dolor sit amet.	CODE