AI Slop Code RIsk Monitor

liquidslr/system-design-notes

Notes of the book System Desgin Interview - An Insider's Guide

16.1 Elevated pattern signal View on GitHub

Maintenance and Governance Review

This report summarizes scanner evidence for liquidslr/system-design-notes with 25,915 GitHub stars. SynthScan examined 8,175 lines of code across 29 source files, recording 88 pattern matches distributed across 1 syntactic category. The legacy adjusted pattern signal is 16.1 (Elevated 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.

16.1
Adjusted Signal
16.1
Raw Pattern Score
100%
Time Factor
2026-08-12
Last Push
25.9K
Stars
—
Language
8.2K
Lines of Code
29
Files
88
Pattern Hits
2026-10-12
Scan Date
0.00
HC Hit Rate

Risk Review · v3

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

Cognitive Ownership Risk 55.4/100 · HIGH

Can maintainers explain intent, assumptions, and trade-offs? 88 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 41.6/100 · MEDIUM

Which changes need focused human review? 88 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

Run additional scans to build a history of the legacy pattern signal. Score changes are not a measure of AI adoption or code quality.

No multi-scan history yet — run the scanner again to build trend data.

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 88

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 88 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.

Structural Annotation Overuse88 hits · 132 pts
SeverityFileLineSnippetContext
LOW15. Google Drive/Readme.md13## Step 1: Understanding the ProblemCOMMENT
LOW15. Google Drive/Readme.md39## Step 2: High-Level DesignCOMMENT
LOW15. Google Drive/Readme.md131## Step 3: Design Deep DiveCOMMENT
LOW12. Chat System/Readme.md15## Step 1: Understanding the ProblemCOMMENT
LOW12. Chat System/Readme.md29## Step 2: High-Level DesignCOMMENT
LOW12. Chat System/Readme.md110## Step 3: Design Deep DiveCOMMENT
LOW10. Notification System/Readme.md13## Step 1: Understanding the ProblemCOMMENT
LOW10. Notification System/Readme.md27## Step 2: High-Level DesignCOMMENT
LOW10. Notification System/Readme.md86## Step 3: Design Deep DiveCOMMENT
LOW28. Stock Exchange/README.md16## Step 1: Understand the Problem and Establish Design scopeCOMMENT
LOW28. Stock Exchange/README.md51## Step 2: Propose High-Level Design and Get Buy-InCOMMENT
LOW28. Stock Exchange/README.md370## Step 3: Design Deep DiveCOMMENT
LOW28. Stock Exchange/README.md606## Step 4: Wrap UpCOMMENT
LOW08. URL Shortener/Readme.md14## Step 1: High-Level DesignCOMMENT
LOW08. URL Shortener/Readme.md48## Step 2: Deep Dive into DesignCOMMENT
LOW18. Google Maps/README.md14## Step 1: Understand the Problem and Establish Design ScopeCOMMENT
LOW18. Google Maps/README.md133## Step 2: Propose High-Level Design and Get Buy-InCOMMENT
LOW18. Google Maps/README.md239## Step 3: Design Deep DiveCOMMENT
LOW18. Google Maps/README.md435## Step 4: Wrap UpCOMMENT
LOW11. News Feed System/Readme.md8## Step 1: Understanding the ProblemCOMMENT
LOW11. News Feed System/Readme.md23## Step 2: High-Level DesignCOMMENT
LOW11. News Feed System/Readme.md72## Step 3: Design Deep DiveCOMMENT
LOW27. Digital Wallet/README.md14## Step 1: Understand the Problem and Establish Design ScopeCOMMENT
LOW27. Digital Wallet/README.md50## Step 2: Propose High-Level Design and Get Buy-InCOMMENT
LOW27. Digital Wallet/README.md313## Step 3: Design Deep DiveCOMMENT
LOW27. Digital Wallet/README.md412## Step 4: Wrap UpCOMMENT
LOW04. Rate Limiter/Readme.md11## Step 1: Understanding the ProblemCOMMENT
LOW04. Rate Limiter/Readme.md27## Step 2: High-Level DesignCOMMENT
LOW04. Rate Limiter/Readme.md44## Step 3: Rate Limiting AlgorithmsCOMMENT
LOW22. Hotel Reservation System/README.md10## Step 1: Understand the Problem and Establish Design ScopeCOMMENT
LOW22. Hotel Reservation System/README.md46## Step 2: Propose High-Level Design and Get Buy-InCOMMENT
LOW22. Hotel Reservation System/README.md143## Step 3: Design Deep DiveCOMMENT
LOW22. Hotel Reservation System/README.md455## Step 4: Wrap UpCOMMENT
LOW09. Web Crawler/Readme.md21## Step 1: Understanding the ProblemCOMMENT
LOW09. Web Crawler/Readme.md32## Step 2: High-Level DesignCOMMENT
LOW09. Web Crawler/Readme.md79## Step 3: Deep Dive into Key ComponentsCOMMENT
LOW09. Web Crawler/Readme.md140## Step 4: Wrap UpCOMMENT
LOW20. Metrics Monitoring and Alerting System/README.md8## Step 1: Understand the Problem and Establish Design ScopeCOMMENT
LOW20. Metrics Monitoring and Alerting System/README.md54## Step 2: Propose High-Level Design and Get Buy-InCOMMENT
LOW20. Metrics Monitoring and Alerting System/README.md167## Step 3: Design Deep DiveCOMMENT
LOW20. Metrics Monitoring and Alerting System/README.md419## Step 4: Wrap upCOMMENT
LOW26. Payment System/README.md10## Step 1: Understand the Problem and Establish Design ScopeCOMMENT
LOW26. Payment System/README.md43## Step 2: Propose High-Level Design and Get Buy-InCOMMENT
LOW26. Payment System/README.md166## Step 3: Design Deep DiveCOMMENT
LOW26. Payment System/README.md324## Step 4: Wrap UpCOMMENT
LOW16. Proximity Service/Readme.md7## Step 1: Understanding the Problem and Establishing ScopeCOMMENT
LOW16. Proximity Service/Readme.md28## Step 2: High-Level DesignCOMMENT
LOW16. Proximity Service/Readme.md80## Step 3: Algorithms for Fetching Nearby BusinessesCOMMENT
LOW16. Proximity Service/Readme.md213## Step 4: Scaling the Database and Caching StrategyCOMMENT
LOW16. Proximity Service/Readme.md246## Step 5: Deployment Strategy and Final ArchitectureCOMMENT
LOW03. System Design Framework/Readme.md10## Step 1: Understand the Problem and Establish Design ScopeCOMMENT
LOW03. System Design Framework/Readme.md36## Step 2: Propose High-Level Design and Get Buy-InCOMMENT
LOW03. System Design Framework/Readme.md59## Step 3: Design Deep DiveCOMMENT
LOW03. System Design Framework/Readme.md77## Step 4: Wrap-UpCOMMENT
LOW13. Search Autocomplete/Readme.md14## Step 1: Understanding the ProblemCOMMENT
LOW13. Search Autocomplete/Readme.md25## Step 2: High-Level DesignCOMMENT
LOW13. Search Autocomplete/Readme.md61## Step 3: Design Deep DiveCOMMENT
LOW13. Search Autocomplete/Readme.md174## Step 4: Advanced FeaturesCOMMENT
LOW24. S3-like Object Storage/README.md51## Step 1: Understand the Problem and Establish Design ScopeCOMMENT
LOW24. S3-like Object Storage/README.md84## Step 2: Propose High-Level Design and Get Buy-InCOMMENT
28 more matches not shown…