AI Slop Code Risk Monitor

serde-rs/serde

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

Serialization framework for Rust

3.6 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for serde-rs/serde, a Rust project with 10,923 GitHub stars. SynthScan examined 43,949 lines of code across 229 source files, recording 219 pattern matches distributed across 1 syntactic category. The legacy adjusted pattern signal is 3.6 (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.

3.6
Adjusted Signal
3.6
Raw Pattern Score
100%
Time Factor
2026-10-16
Last Push
10.9K
Stars
Rust
Language
43.9K
Lines of Code
229
Files
219
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 16.4/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 219 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.0/100 · LOW

Are imports declared and package/API names verified? 0 finding(s).

Agent Over-Engineering Ratio 0.0/100 · LOW

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

PR Review Velocity Impact 22.1/100 · LOW

Which changes need focused human review? 219 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 219

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 219 distinct pattern matches across 1 syntactic category. 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 Block219 hits · 158 pts
SeverityFileLineSnippetContext
LOWserde_core/src/std_error.rs1use crate::lib::{Debug, Display};COMMENT
LOWserde_core/src/std_error.rs21/// impl std::error::Error for MySerError {}COMMENT
LOWserde_core/src/lib.rs1//! Serde is a framework for ***ser***ializing and ***de***serializing Rust dataCOMMENT
LOWserde_core/src/lib.rs21//! <br>COMMENT
LOWserde_core/src/lib.rs41// Show which crate feature enables conditionally compiled APIs in documentation.COMMENT
LOWserde_core/src/macros.rs1// Super explicit first paragraph because this shows up at the top level andCOMMENT
LOWserde_core/src/macros.rs21/// #COMMENT
LOWserde_core/src/macros.rs41/// # }COMMENT
LOWserde_core/src/macros.rs61/// {COMMENT
LOWserde_core/src/macros.rs81/// # use serde::forward_to_deserialize_any;COMMENT
LOWserde_core/src/macros.rs101/// tuple_struct map struct enum identifier ignored_anyCOMMENT
LOWserde_core/src/private/string.rs1use crate::lib::*;COMMENT
LOWserde_core/src/de/mod.rs1//! Generic data structure deserialization framework.COMMENT
LOWserde_core/src/de/mod.rs21//! In rare cases it may be necessary to implement [`Deserialize`] manually forCOMMENT
LOWserde_core/src/de/mod.rs41//! serialization. Some types can be serialized by Serde but not deserialized.COMMENT
LOWserde_core/src/de/mod.rs61//! - Box\<str\>COMMENT
LOWserde_core/src/de/mod.rs81//! - **FFI types**:COMMENT
LOWserde_core/src/de/mod.rs101//! - SocketAddrV6COMMENT
LOWserde_core/src/de/mod.rs141 /// currently running.COMMENT
LOWserde_core/src/de/mod.rs161 diagnostic::on_unimplemented(COMMENT
LOWserde_core/src/de/mod.rs181 /// # }COMMENT
LOWserde_core/src/de/mod.rs201 ///COMMENT
LOWserde_core/src/de/mod.rs221 /// This is the value that was present in the input file or other sourceCOMMENT
LOWserde_core/src/de/mod.rs301}COMMENT
LOWserde_core/src/de/mod.rs321/// #COMMENT
LOWserde_core/src/de/mod.rs421 StructVariant => formatter.write_str("struct variant"),COMMENT
LOWserde_core/src/de/mod.rs441/// # use serde::de::{self, Unexpected, Visitor};COMMENT
LOWserde_core/src/de/mod.rs461///COMMENT
LOWserde_core/src/de/mod.rs521/// automatically generate `Deserialize` implementations for structs and enumsCOMMENT
LOWserde_core/src/de/mod.rs541/// deserializer lifetimes] for a more detailed explanation of these lifetimes.COMMENT
LOWserde_core/src/de/mod.rs561 fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>COMMENT
LOWserde_core/src/de/mod.rs581 /// documentation because it is almost never what newbies are looking for.COMMENT
LOWserde_core/src/de/mod.rs601/// owned data.COMMENT
LOWserde_core/src/de/mod.rs621/// The relationship between `Deserialize` and `DeserializeOwned` in traitCOMMENT
LOWserde_core/src/de/mod.rs641/// deserialize a JSON array into a `Vec<T>` but it would be a freshly allocatedCOMMENT
LOWserde_core/src/de/mod.rs661///COMMENT
LOWserde_core/src/de/mod.rs681/// borrowed by `Self::Value` when deserialized. See the page [UnderstandingCOMMENT
LOWserde_core/src/de/mod.rs701/// // append array elements onto the end of an existing vector. The preexistingCOMMENT
LOWserde_core/src/de/mod.rs721/// // input.COMMENT
LOWserde_core/src/de/mod.rs741/// }COMMENT
LOWserde_core/src/de/mod.rs761/// T: Deserialize<'de>,COMMENT
LOWserde_core/src/de/mod.rs781/// }COMMENT
LOWserde_core/src/de/mod.rs821 fn deserialize<D>(self, deserializer: D) -> Result<T, D::Error>COMMENT
LOWserde_core/src/de/mod.rs841/// these various types.COMMENT
LOWserde_core/src/de/mod.rs861/// - The type of `()` in Rust. It represents an anonymous value containingCOMMENT
LOWserde_core/src/de/mod.rs881/// `[u64; 10]`.COMMENT
LOWserde_core/src/de/mod.rs901/// know that it is seeing a map. If the data format supportsCOMMENT
LOWserde_core/src/de/mod.rs921/// others.COMMENT
LOWserde_core/src/de/mod.rs941 diagnostic::on_unimplemented(COMMENT
LOWserde_core/src/de/mod.rs1041 fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error>COMMENT
LOWserde_core/src/de/mod.rs1061 /// data, indicate that to the `Deserializer` by using `deserialize_str`COMMENT
LOWserde_core/src/de/mod.rs1181 /// Deserializers for non-self-describing formats may not support this mode.COMMENT
LOWserde_core/src/de/mod.rs1201 /// # impl Timestamp {COMMENT
LOWserde_core/src/de/mod.rs1221 /// # unimplemented!()COMMENT
LOWserde_core/src/de/mod.rs1241 /// }COMMENT
LOWserde_core/src/de/mod.rs1261 whereCOMMENT
LOWserde_core/src/de/mod.rs1281///COMMENT
LOWserde_core/src/de/mod.rs1301/// E: de::Error,COMMENT
LOWserde_core/src/de/mod.rs1321 /// Format a message stating what data this Visitor expects to receive.COMMENT
LOWserde_core/src/de/mod.rs1501 /// The input contains a `char`.COMMENT
159 more matches not shown…