AI Slop Code Risk Monitor

mvdan/sh

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

A shell parser, formatter, and interpreter with bash and zsh support; includes shfmt

1.2 Low pattern signal View on GitHub

Open-Source Code Quality, Security and Technical Debt Review

This report summarizes scanner evidence for mvdan/sh, a Go project with 9,169 GitHub stars. SynthScan examined 53,768 lines of code across 106 source files, recording 64 pattern matches distributed across 2 syntactic categories. The legacy adjusted pattern signal is 1.2 (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.

1.2
Adjusted Signal
1.2
Raw Pattern Score
100%
Time Factor
2026-10-27
Last Push
9.2K
Stars
Go
Language
53.8K
Lines of Code
106
Files
64
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 5.9/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 64 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 5.8/100 · LOW

Which changes need focused human review? 64 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 64

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 64 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 Block61 hits · 61 pts
SeverityFileLineSnippetContext
LOWcmd/shfmt/main.go281 if err := filepath.WalkDir(path, func(path string, entry fs.DirEntry, err error) error {COMMENT
LOWexpand/doc.go1// Copyright (c) 2018, Daniel Martí <mvdan@mvdan.cc>COMMENT
LOWexpand/environ.go21 // set, use Variable.IsSet.COMMENT
LOWexpand/environ.go41// such as `export foo` or `readonly foo` alter the attributes but not the value,COMMENT
LOWexpand/expand.go21 "syscall"COMMENT
LOWexpand/expand.go41 // * "HOME foo" to retrieve user foo's home directory (if unset,COMMENT
LOWexpand/expand.go61 // ProcSubst expands a process substitution node.COMMENT
LOWshell/example_test.go121 // Output:COMMENT
LOWshell/doc.go1// Copyright (c) 2017, Daniel Martí <mvdan@mvdan.cc>COMMENT
LOWshell/glob.go21// The pattern is parsed like the arguments to a command, as in [Fields],COMMENT
LOWshell/match.go1// Copyright (c) 2026, Daniel Martí <mvdan@mvdan.cc>COMMENT
LOWshell/expand.go41// expansion, tilde expansion, and word splitting.COMMENT
LOWinterp/handler.go61 kind handlerKindCOMMENT
LOWinterp/handler.go81 // due to backwards compatibility.COMMENT
LOWinterp/handler.go101// The args slice is never empty.COMMENT
LOWinterp/handler.go121// The args slice is never empty.COMMENT
LOWinterp/handler.go401// The path parameter may be relative to the current directory,COMMENT
LOWinterp/handler.go501 AccessExec AccessMode = 0b001COMMENT
LOWinterp/handler.go521COMMENT
LOWinterp/handler.go541 // OpenSubshell is called exactly once, from the background subshellCOMMENT
LOWinterp/runner.go521 }COMMENT
LOWinterp/vars.go21 "mvdan.cc/sh/v3/internal/arithm"COMMENT
LOWinterp/api.go1// Copyright (c) 2017, Daniel Martí <mvdan@mvdan.cc>COMMENT
LOWinterp/api.go41 "time"COMMENT
LOWinterp/api.go61 // If it includes a TMPDIR variable describing an absolute directory,COMMENT
LOWinterp/api.go181COMMENT
LOWinterp/api.go201COMMENT
LOWinterp/api.go541 return nilCOMMENT
LOWinterp/api.go701func ExecHandler(f ExecHandlerFunc) RunnerOption {COMMENT
LOWinterp/api.go801 r.procSubstHandler = fCOMMENT
LOWinterp/api.go1041 // These correspond to indexes (offset by the above seven items) ofCOMMENT
LOWinterp/api.go1201 status uint8COMMENT
LOWinterp/api.go1261COMMENT
LOWinterp/api.go1361}COMMENT
LOWinterp/api.go1381// Subshell is not safe to use concurrently with [Run]. Orchestrating this isCOMMENT
LOWinterp/builtin.go21 "mvdan.cc/sh/v3/expand"COMMENT
LOWinternal/arithm/word.go1// Copyright (c) 2026, Daniel Martí <mvdan@mvdan.cc>COMMENT
LOW.github/workflows/test.yml1on: [push, pull_request]COMMENT
LOWpattern/pattern.go61 Filenames // "*" and "?" don't match slashes; only "**" does; only makes sense with EntireStriCOMMENT
LOWpattern/pattern.go501 switch name {COMMENT
LOWsyntax/example_test.go121 fmt.Printf("Quote(%17q): %s\n", s, quoted)COMMENT
LOWsyntax/example_test.go161 // Output:COMMENT
LOWsyntax/example_test.go181 // . . . . . . . 0: *syntax.SglQuoted {COMMENT
LOWsyntax/simplify.go1// Copyright (c) 2017, Daniel Martí <mvdan@mvdan.cc>COMMENT
LOWsyntax/parser_test.go341 if strings.Contains(in, "\\\r\n") {COMMENT
LOWsyntax/quote.go21COMMENT
LOWsyntax/quote.go41// In such cases, the returned error type will be *QuoteError.COMMENT
LOWsyntax/doc.go1// Copyright (c) 2016, Daniel Martí <mvdan@mvdan.cc>COMMENT
LOWsyntax/braces.go1// Copyright (c) 2018, Daniel Martí <mvdan@mvdan.cc>COMMENT
LOWsyntax/braces.go41 return trueCOMMENT
LOWsyntax/parser.go21type ParserOption func(*Parser)COMMENT
LOWsyntax/parser.go41COMMENT
LOWsyntax/parser.go61 //COMMENT
LOWsyntax/parser.go81 // Its string representation is "zsh".COMMENT
LOWsyntax/parser.go181 if !yield(n) {COMMENT
LOWsyntax/parser.go341 return nilCOMMENT
LOWsyntax/printer.go41// SwitchCaseIndent will make switch cases be indented. As such, switchCOMMENT
LOWsyntax/printer.go101COMMENT
LOWsyntax/nodes.go121// offset numbers will stop increasing past a very large number.COMMENT
LOWsyntax/nodes.go281func (*LetClause) commandNode() {}COMMENT
1 more matches not shown…
TODO Padding3 hits · 4 pts
SeverityFileLineSnippetContext
LOWexpand/param.go491 // TODO: implement, like @A but listing keys for assoc arrays.COMMENT
LOWexpand/param.go586 // TODO: implement prompt expansion (\u, \h, \w, etc.).COMMENT
LOWinterp/builtin.go512 // TODO: implement. for now, having this as a no-op is better than nothing.COMMENT