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AI Slop Code Risk Monitor

microsoft/FASTER

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

Fast persistent recoverable log and key-value store + cache, in C# and C++.

3.7 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for microsoft/FASTER, a C# project with 6,636 GitHub stars. SynthScan examined 128,867 lines of code across 585 source files, recording 481 pattern matches distributed across 3 syntactic categories. The legacy adjusted pattern signal is 3.7 (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.

3.7
Adjusted Signal
3.7
Raw Pattern Score
100%
Time Factor
2026-10-19
Last Push
6.6K
Stars
C#
Language
128.9K
Lines of Code
585
Files
481
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 16.6/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 480 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.4/100 · LOW

Are imports declared and package/API names verified? 1 finding(s).

Agent Over-Engineering Ratio 0.0/100 · LOW

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

PR Review Velocity Impact 17.4/100 · LOW

Which changes need focused human review? 481 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 1HIGH 0MEDIUM 2LOW 478

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 481 distinct pattern matches across 3 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 Block478 hits · 461 pts
SeverityFileLineSnippetContext
LOWcs/benchmark/Properties/AssemblyInfo.cs21// to COM components. If you need to access a type in this assembly from COMMENT
LOWcs/test/DisposeTests.cs481 // SUT sees that the address in the hash entry is below HeadAddress (because everything has been flushed tCOMMENT
LOWcs/test/ExpirationTests.cs81 // IPU sets rwmInfo.DeleteRecord and returns false; we see this andCOMMENT
LOWcs/test/ExpirationTests.cs101 // OnDisk:COMMENT
LOWcs/test/ExpirationTests.cs121 DeleteIfValueEqualsThenUpdate, // Delete the record for a key if the current value equals a specified vCOMMENT
LOWcs/test/Properties/AssemblyInfo.cs21// to COM components. If you need to access a type in this assembly from COMMENT
LOWcs/test/Properties/AssemblyInfo.cs41// Make all fixtures in the test assembly run in parallelCOMMENT
LOWcs/playground/SumStore/Properties/AssemblyInfo.cs21// to COM components. If you need to access a type in this assembly fromCOMMENT
LOWcs/samples/StoreVarLenTypes/Utils.cs41 /// Convert long number into sequence of ASCII bytesCOMMENT
LOWcs/samples/CacheStore/Program.cs61 // Uncomment below to take checkpoint and wait for its completionCOMMENT
LOWcs/samples/ResizableCacheStore/Program.cs41 /// <summary>COMMENT
LOWcs/samples/ResizableCacheStore/Program.cs81 /// <summary>COMMENT
LOWcs/src/core/FasterLog/CommitInfo.cs21 /// Until address of commit rangeCOMMENT
LOWcs/src/core/FasterLog/ILogCommitManager.cs21 /// <param name="commitNum">commit num</param>COMMENT
LOWcs/src/core/FasterLog/ILogCommitManager.cs41 /// <param name="commitNum">commit num to remove</param>COMMENT
LOWcs/src/core/FasterLog/FasterLog.cs61COMMENT
LOWcs/src/core/FasterLog/FasterLog.cs81COMMENT
LOWcs/src/core/FasterLog/FasterLog.cs101COMMENT
LOWcs/src/core/FasterLog/FasterLog.cs141COMMENT
LOWcs/src/core/FasterLog/FasterLog.cs961 /// Try to enqueue batch of entries as a single atomic unit (to memory). Entire COMMENT
LOWcs/src/core/FasterLog/FasterLog.cs1261 /// <summary>COMMENT
LOWcs/src/core/FasterLog/FasterLog.cs1361 prevCommitTask = linkedCommitInfo.NextTask;COMMENT
LOWcs/src/core/FasterLog/FasterLogRecoveryInfo.cs21 const int FasterLogRecoveryVersion = 1;COMMENT
LOWcs/src/core/FasterLog/FasterLogRecoveryInfo.cs41 public byte[] Cookie;COMMENT
LOWcs/src/core/FasterLog/ILogEntryConsumer.cs1using System;COMMENT
LOWcs/src/core/FasterLog/ILogEntryConsumer.cs21 /// </summary>COMMENT
LOWcs/src/core/FasterLog/FasterLogIterator.cs41COMMENT
LOWcs/src/core/FasterLog/FasterLogIterator.cs321 /// </summary>COMMENT
LOWcs/src/core/FasterLog/FasterLogIterator.cs741 return true;COMMENT
LOWcs/src/core/FasterLog/LogCommitPolicy.cs21 /// Admission control to decide whether a call to Commit() should successfully start or not.COMMENT
LOWcs/src/core/FasterLog/LogCommitPolicy.cs41 /// <param name="info"> commit content </param>COMMENT
LOWcs/src/core/FasterLog/LogCommitPolicy.cs61COMMENT
LOWcs/src/core/FasterLog/FasterLogSettings.cs41 /// Device used for logCOMMENT
LOWcs/src/core/FasterLog/FasterLogSettings.cs61COMMENT
LOWcs/src/core/FasterLog/FasterLogSettings.cs81 public ILogCommitManager LogCommitManager = null;COMMENT
LOWcs/src/core/FasterLog/FasterLogSettings.cs101 /// Fraction of log marked as mutable (uncommitted)COMMENT
LOWcs/src/core/FasterLog/FasterLogSettings.cs121 public bool RemoveOutdatedCommits = true;COMMENT
LOWcs/src/core/FasterLog/FasterLogSettings.cs141 public bool AutoCommit = false;COMMENT
LOWcs/src/core/ClientSession/IUnsafeContext.cs1// Copyright (c) Microsoft Corporation. All rights reserved.COMMENT
LOWcs/src/core/ClientSession/ILockableContext.cs21 /// Ends a series of lock operations on possibly multiple keys; call after all locks are released.COMMENT
LOWcs/src/core/ClientSession/ILockableContext.cs41 /// <summary>COMMENT
LOWcs/src/core/ClientSession/ILockableContext.cs61 /// </summary>COMMENT
LOWcs/src/core/ClientSession/ILockableContext.cs81 /// <param name="keys">keyCodes to be locked, and whether that locking is shared or exclusive; must be sorted byCOMMENT
LOWcs/src/core/ClientSession/ILockableContext.cs101 where TLockableKey : ILockableKey;COMMENT
LOWcs/src/core/ClientSession/ILockableContext.cs121 /// <summary>COMMENT
LOWcs/src/core/ClientSession/ILockableContext.cs141 where TLockableKey : ILockableKey;COMMENT
LOWcs/src/core/ClientSession/ILockableContext.cs161 where TLockableKey : ILockableKey;COMMENT
LOWcs/src/core/ClientSession/ILockableContext.cs181 /// Promotes a shared lock on the key to an exclusive lock, with retry limits or cancellation.COMMENT
LOWcs/src/core/ClientSession/ILockableContext.cs201 /// <summary>COMMENT
LOWcs/src/core/ClientSession/ClientSession.cs201 /// <summary>COMMENT
LOWcs/src/core/ClientSession/ClientSession.cs981 localCommitPoint = LatestCommitPoint;COMMENT
LOWcs/src/core/ClientSession/ClientSession.cs1001 /// <param name="input">Input for SingleWriter</param>COMMENT
LOWcs/src/core/ClientSession/IFasterContext.cs21 /// <summary>COMMENT
LOWcs/src/core/ClientSession/IFasterContext.cs41 bool CompletePending(bool wait = false, bool spinWaitForCommit = false);COMMENT
LOWcs/src/core/ClientSession/IFasterContext.cs61 /// Complete all pending synchronous FASTER operations, returning outputs for the completed operations.COMMENT
LOWcs/src/core/ClientSession/IFasterContext.cs81 /// <param name="key">The key to look up</param>COMMENT
LOWcs/src/core/ClientSession/IFasterContext.cs101 /// <summary>COMMENT
LOWcs/src/core/ClientSession/IFasterContext.cs121 Status Read(ref Key key, ref Output output, Context userContext = default, long serialNo = 0);COMMENT
LOWcs/src/core/ClientSession/IFasterContext.cs141 /// <returns></returns>COMMENT
LOWcs/src/core/ClientSession/IFasterContext.cs161 /// <returns></returns>COMMENT
418 more matches not shown…
Hallucination Indicators1 hit · 10 pts
SeverityFileLineSnippetContext
CRITICALcs/test/FasterLogTests.cs159 Assert.IsTrue(asyncMemoryOwnerIter.Current.entry.Memory.Span.ToArray().Take(expectedData.Length)CODE
AI Slop Vocabulary2 hits · 6 pts
SeverityFileLineSnippetContext
MEDIUMcs/samples/StoreVarLenTypes/SpanByteSample.cs11 /// This sample shows how our special type called SpanByte can be leverage to use FASTERCOMMENT
MEDIUMcc/src/core/faster.h3626 // Therefore, we cannot utilize the *blocking* `thread.join`COMMENT