automerge/automerge

6.0

Adjusted Score

6.0

Raw Score

100%

Time Factor

2026-08-28

Last Push

6.5K

Stars

JavaScript

Language

168.9K

Lines of Code

501

Files

620

Pattern Hits

2026-08-29

Scan Date

0.00

HC Hit Rate

What These Metrics Mean

Adjusted Score: Primary synthetic code indicator. Raw score normalised per 1,000 lines of code and multiplied by the temporal discount factor. This is the definitive comparative metric — use it to rank repositories by AI authorship density.
Raw Score: The unmodified sum of all severity-weighted, context-multiplied pattern match scores before temporal discounting. Reflects the absolute signal strength independent of when the repository was last active.
Time Factor: The temporal discount multiplier (0–100%) applied to the raw score. Repositories last updated before ChatGPT's launch (Nov 2022) receive a 5% factor. Full signal is only assigned to repositories active in the post-adoption era (Jan 2024+).
Pattern Hits: Total count of individual pattern matches across all files and categories. A high hit count with a low score may indicate a very large codebase with isolated AI snippets; a low count with a high score indicates dense, concentrated AI signatures.
HC Hit Rate: High+Critical pattern hits per file, averaged across the repository. This orthogonal signal catches repositories where a few files are densely packed with high-severity AI tells — a strong indicator even when the normalised score appears moderate due to codebase size.
Lines of Code / Files: Total lines and files analysed. The scanner examines 94 file extensions. These denominators are used to normalise the score, enabling fair comparison between repositories of vastly different sizes.

Score History

This chart maps the temporal evolution of the adjusted synthetic code score across successive scan runs. An upward trajectory indicates ongoing incorporation of AI-generated code or expanding LLM-assisted scaffolding; a stable or declining trajectory may reflect active human refactoring, code removal, or the adoption of stricter authorship policies. The dashed secondary line (right axis) independently tracks total raw pattern hit count, which can diverge from the normalised score when codebase size changes significantly between scans.

Severity Breakdown

Classifies detected patterns by their diagnostic confidence and structural impact. CRITICAL patterns (coefficient 10) represent definitive synthetic signatures — hallucinated imports, explicit LLM attribution metadata — virtually never produced by human authors. HIGH (5) indicates strong structural tells such as cross-file repetition or cross-linguistic idioms. MEDIUM (2) covers recognisable conversational padding and AI-specific vocabulary. LOW (1) captures subtle indicators like tautological comments and generic boilerplate that require density to carry independent signal.

CRITICAL 0HIGH 0MEDIUM 243LOW 377

Directory Score Breakdown

This horizontal bar chart decomposes the repository's raw synthetic code score by top-level directory, allowing you to pinpoint precisely which modules or components carry the highest AI authorship density. Directories with disproportionately high scores relative to their size warrant targeted manual review: concentrated AI signatures often trace back to mass-generated configuration layers, auto-ported test suites, LLM-scaffolded boilerplate classes, or entire subsystems authored under heavy copilot assistance. Use this view to prioritise your human code-review effort.

Pattern Findings

The scanner identified 620 distinct pattern matches across 5 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a statistically significant AI authorship indicator. 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 diagnostic confidence level (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — comment-context matches receive a ×1.5 weight because LLMs systematically over-annotate. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier as dense clusters constitute far stronger evidence of synthetic authorship than isolated hits.

Decorative Section Separators240 hits · 656 pts

Severity	File	Line	Snippet	Context
MEDIUM⚡	rust/hexane/benches/column_ops.rs	269	// ═══════════════════════════════════════════════════════════════════════════	COMMENT
MEDIUM⚡	rust/hexane/benches/column_ops.rs	271	// ═══════════════════════════════════════════════════════════════════════════	COMMENT
MEDIUM⚡	rust/hexane/benches/column_ops.rs	273	// ── Bool get (random access) ────────────────────────────────────────────────	COMMENT
MEDIUM⚡	rust/hexane/benches/column_ops.rs	458	// ═══════════════════════════════════════════════════════════════════════════	COMMENT
MEDIUM⚡	rust/hexane/benches/column_ops.rs	460	// ═══════════════════════════════════════════════════════════════════════════	COMMENT
MEDIUM⚡	rust/hexane/benches/column_ops.rs	470	// ── Bulk load: v0 vs v1 vs prefix ────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	25	// ── Helpers: build columns ──────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	50	// ── Get (random access) ─────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	77	// ── Small splice: insert only (no deletes) ──────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	129	// ── String splice ───────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	193	// ── Large splice: insert 100k elements into a 1k column ─────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	213	// ── Large splice: delete only ───────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	240	// ── Large splice: replace ───────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	300	// ── Bool small splice: replace ──────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	352	// ── Bool large splice: insert 100k ──────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	372	// ── Bool large splice: delete only ──────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	389	// ── Bool large splice: replace ──────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	407	// ═══════════════════════════════════════════════════════════════════════════	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	409	// ═══════════════════════════════════════════════════════════════════════════	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	536	// ── PrefixColumn queries: get vs get_prefix vs get_index_for_prefix ──────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	688	// ═══════════════════════════════════════════════════════════════════════════	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	690	// ═══════════════════════════════════════════════════════════════════════════	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	722	// ── Delta get (random access) ────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	749	// ── Delta insert ─────────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	776	// ── Sparse Option<i64> delta mutations at 100k (50% None vs 0% None) ────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	889	// ── Delta save ───────────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	924	// ── Delta save (monotonic data — shows compression advantage) ────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	945	// ── Delta load ───────────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	968	// ── Delta bulk construction ──────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	1011	// ═══════════════════════════════════════════════════════════════════════════	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	1013	// ═══════════════════════════════════════════════════════════════════════════	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	1065	// ── nth() on alternating 10k-element runs (1M total) ────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	1130	// ── Prefix iter: random values ──────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	1168	// ── Prefix iter: alternating runs ───────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	1188	// ── Prefix nth: alternating runs ────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	1231	// ── Prefix nth: random values ───────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_ops.rs	1252	// ── Save benchmarks ─────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/max_segments.rs	28	// ── Helpers ──────────────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/max_segments.rs	38	// ── Bulk load u64 100k ───────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/max_segments.rs	90	// ── Get u64 100k ─────────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/max_segments.rs	142	// ── Insert-1 u64 10k ─────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/max_segments.rs	208	// ── Splice replace-5 u64 10k ─────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/max_segments.rs	302	// ── Get bool 100k ────────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/max_segments.rs	354	// ── Insert-1 bool 10k ────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/max_segments.rs	420	// ── Save u64 100k ────────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/max_segments.rs	472	// ── Slab count (informational) ───────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/btree_b_sweep.rs	52	// ── Column<u64> (LenWeight = usize) ────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/btree_b_sweep.rs	131	// ── DeltaColumn<i64> (SlabAgg = 4×i64) ─────────────────────────────	COMMENT
MEDIUM	rust/hexane/benches/column_u64_mutations.rs	53	// ╔══════════════════════════════════════════════════════════════════════════╗	COMMENT
MEDIUM	rust/hexane/benches/column_u64_mutations.rs	55	// ╚══════════════════════════════════════════════════════════════════════════╝	COMMENT
MEDIUM	rust/hexane/benches/column_u64_mutations.rs	124	// ╔══════════════════════════════════════════════════════════════════════════╗	COMMENT
MEDIUM	rust/hexane/benches/column_u64_mutations.rs	126	// ╚══════════════════════════════════════════════════════════════════════════╝	COMMENT
MEDIUM	rust/hexane/src/edit.rs	65	// ── Progressive editing ─────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/src/edit.rs	461	// ── internals ───────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/src/splice_fuzz.rs	41	// ── the target abstraction ──────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/src/splice_fuzz.rs	122	// ── the harness ─────────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/src/splice_fuzz.rs	342	// ── targets ─────────────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/src/splice_fuzz.rs	553	// ── tests ───────────────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/src/encoder.rs	30	// ── RLE Encoder ─────────────────────────────────────────────────────────────	COMMENT
MEDIUM	rust/hexane/src/encoder.rs	494	// ── Bool Encoder ────────────────────────────────────────────────────────────	COMMENT
180 more matches not shown…

Over-Commented Block376 hits · 354 pts

Severity	File	Line	Snippet	Context
LOW	rust/deny.toml	1	# This template contains all of the possible sections and their default values	COMMENT
LOW	rust/deny.toml	21	targets = [	COMMENT
LOW	rust/deny.toml	41	# A list of advisory IDs to ignore. Note that ignored advisories will still	COMMENT
LOW	rust/deny.toml	61	# This section is considered when running `cargo deny check licenses`	COMMENT
LOW	rust/deny.toml	101	# The name of the crate the clarification applies to	COMMENT
LOW	rust/deny.toml	121	# One or more private registries that you might publish crates to, if a crate	COMMENT
LOW	rust/deny.toml	141	highlight = "all"	COMMENT
LOW	rust/deny.toml	161	# is still on roxmltree 0.20; both come from resvg, used by	COMMENT
LOW	rust/deny.toml	181	# List of URLs for allowed crate registries. Defaults to the crates.io index	COMMENT
LOW	rust/benchmark-battery/src/main.rs	21	#[derive(Debug, Subcommand)]	COMMENT
LOW	rust/benchmark-battery/src/main.rs	41	#[arg(long, default_value_t = scenarios::TierFilter::Fast)]	COMMENT
LOW	rust/benchmark-battery/src/main.rs	61	/// Add measured results to the existing output file, preserving earlier results.	COMMENT
LOW	rust/benchmark-battery/src/main.rs	81	#[arg(long, default_value_t = 5.0)]	COMMENT
LOW	rust/hexane/proptest-regressions/tests.txt	1	# Seeds for failure cases proptest has generated in the past. It is	COMMENT
LOW	rust/hexane/tests/pending.rs	1	//! Known bugs with no fix yet.	COMMENT
LOW	rust/hexane/examples/column_splice_profile.rs	1	//! Profile target for `Column<u64>` splice performance.	COMMENT
LOW	rust/hexane/benches/remap.rs	1	//! `Column::remap` benchmark — re-encode every value through a closure.	COMMENT
LOW	rust/hexane/src/edit.rs	81	/// a byte splice and an index update, and leaves the skipped bytes where	COMMENT
LOW	rust/hexane/src/edit.rs	121	orig: usize,	COMMENT
LOW	rust/hexane/src/edit.rs	141	rebuilds: usize,	COMMENT
LOW	rust/hexane/src/splice_fuzz.rs	1	//! Model-based splice fuzzing with slab-boundary targeting and automatic	COMMENT
LOW	rust/hexane/src/splice_fuzz.rs	21	//! reloaded column passed. So these fuzzers splice repeatedly into one	COMMENT
LOW	rust/hexane/src/encoder.rs	1	//! Streaming encoder for building column data from a sequence of values.	COMMENT
LOW	rust/hexane/src/encoder.rs	101	/// of `value` (or is empty). Both clauses must hold:	COMMENT
LOW	rust/hexane/src/encoder.rs	121	/// Both output methods consume the encoder.	COMMENT
LOW	rust/hexane/src/encoder.rs	601	/// Streaming encoder for boolean columns.	COMMENT
LOW	rust/hexane/src/btree.rs	1	//! Generic B+tree slab index. Generic over an aggregate type `A`	COMMENT
LOW	rust/hexane/src/btree.rs	21	//! thin ~B× slower than leaves (losing a child only when a whole leaf	COMMENT
LOW	rust/hexane/src/btree.rs	41	///	COMMENT
LOW	rust/hexane/src/btree.rs	61	/// Implemented by [`PrefixSlabWeight<P>`](crate::prefix::PrefixSlabWeight)	COMMENT
LOW	rust/hexane/src/btree.rs	1261	}	COMMENT
LOW	rust/hexane/src/bool.rs	21	// No boolean value is stored — the value is implicit from the run's position	COMMENT
LOW	rust/hexane/src/bool.rs	41	/// unmodified prefix/suffix bytes and the splice region.	COMMENT
LOW	rust/hexane/src/bool.rs	101	len,	COMMENT
LOW	rust/hexane/src/bool.rs	141	tail,	COMMENT
LOW	rust/hexane/src/bool.rs	921	merge_bytes	COMMENT
LOW	rust/hexane/src/bool.rs	1161	///	COMMENT
LOW	rust/hexane/src/error.rs	1	/// Errors returned when decoding or validating column data.	COMMENT
LOW	rust/hexane/src/encoding.rs	141		COMMENT
LOW	rust/hexane/src/lib.rs	61		COMMENT
LOW	rust/hexane/src/lib.rs	121	};	COMMENT
LOW	rust/hexane/src/lib.rs	201		COMMENT
LOW	rust/hexane/src/lib.rs	221	type Encoding<C: Codec>: ColumnEncoding<Value = Self, Codec = C>	COMMENT
LOW	rust/hexane/src/lib.rs	241	/// a `map` over it). Lets generic code like `RleCow::get` shorten	COMMENT
LOW	rust/hexane/src/lib.rs	261	/// impl ColumnValue for ValueMeta {	COMMENT
LOW	rust/hexane/src/lib.rs	281	/// true	COMMENT
LOW	rust/hexane/src/lib.rs	321	/// to reject null runs in non-nullable columns.	COMMENT
LOW	rust/hexane/src/lib.rs	341		COMMENT
LOW	rust/hexane/src/lib.rs	361	/// The default panics, which is correct for non-nullable types (`NULLABLE = false`).	COMMENT
LOW	rust/hexane/src/lib.rs	461	fn as_column_ref(&self) -> bool {	COMMENT
LOW	rust/hexane/src/lib.rs	481	/// let mut bytes = Column::<Vec<u8>>::new();	COMMENT
LOW	rust/hexane/src/raw.rs	1	//! Raw-byte arena column.	COMMENT
LOW	rust/hexane/src/raw.rs	21	use crate::PackError;	COMMENT
LOW	rust/hexane/src/raw.rs	301	/// likewise ascending.	COMMENT
LOW	rust/hexane/src/raw.rs	481	total_len: data.len(),	COMMENT
LOW	rust/hexane/src/raw.rs	581		COMMENT
LOW	rust/hexane/src/index.rs	1	//! `ColumnIndex` abstracts the slab-index backing of a `Column`.	COMMENT
LOW	rust/hexane/src/index.rs	41	/// If `index >= total_items`, returns `(len(), 0)` — past-end sentinel,	COMMENT
LOW	rust/hexane/src/prefix.rs	21	/// `Copy` is a supertrait — the inverse-prefix search uses scalar	COMMENT
LOW	rust/hexane/src/prefix.rs	41	/// \| `bool` \| `u32` \|	COMMENT
316 more matches not shown…

Modern AI Meta-Vocabulary2 hits · 6 pts

Severity	File	Line	Snippet	Context
MEDIUM	rust/hexane/V1_MIGRATION.md	178	## Cross-check scaffolding pattern	COMMENT
MEDIUM	rust/hexane/V1_MIGRATION.md	239	### Migrated columns (v0 scaffolding removed — v1 is the source of truth)	COMMENT

Slop Phrases1 hit · 3 pts

Severity	File	Line	Snippet	Context
MEDIUM	javascript/src/index.ts	135	* receiveSyncMessage}. Here's a simple example of a loop which just keeps two	COMMENT

Fake / Example Data1 hit · 1 pts

Severity	File	Line	Snippet	Context
LOW	rust/automerge/tests/batch_insert.rs	686	doc.insert(&list_id, 0, "placeholder").unwrap();	CODE

Analysis Overview

What These Metrics Mean

Score History

Severity Breakdown

Directory Score Breakdown

Pattern Findings