2.9

Adjusted Signal

2.9

Raw Pattern Score

100%

Time Factor

2026-10-31

Last Push

50.8K

Stars

C++

Language

261.9K

Lines of Code

1.2K

Files

837

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 12.4/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 809 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.5/100 · LOW

Are imports declared and package/API names verified? 17 finding(s).

Agent Over-Engineering Ratio 0.6/100 · LOW

Are wrappers, guards, and repeated structures necessary? 13 finding(s).

PR Review Velocity Impact 15.3/100 · LOW

Which changes need focused human review? 837 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 2MEDIUM 7LOW 827

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 837 distinct pattern matches across 10 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 Block781 hits · 665 pts

Severity	File	Line	Snippet	Context
LOW	CMakeLists.txt	1	cmake_minimum_required(VERSION 3.5...4.0)	COMMENT
LOW	README.md	681	json j_result = j_original.patch(j_patch);	COMMENT
LOW	README.md	721	// "a": "z",	COMMENT
LOW	tools/amalgamate/amalgamate.py	1	#!/usr/bin/env python3	COMMENT
LOW	tools/astyle/requirements.txt	1	# astyle is deliberately pinned: newer versions reformat the code, and this version	COMMENT
LOW	cmake/clang_sanitizer_ignorelist.txt	1	# Sanitizer ignore list for ci_test_clang_sanitizer (-fsanitize-ignorelist).	COMMENT
LOW	include/nlohmann/ordered_map.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/ordered_map.hpp	261	// [ a, b, c, d, e, f, g, h, i, j ]	COMMENT
LOW	include/nlohmann/json.hpp	21	#include <algorithm> // all_of, find, for_each, none_of	COMMENT
LOW	include/nlohmann/json.hpp	41	#include <vector> // vector	COMMENT
LOW	include/nlohmann/json.hpp	61	#include <nlohmann/detail/input/input_adapters.hpp>	COMMENT
LOW	include/nlohmann/json.hpp	81	#include <nlohmann/detail/output/output_adapters.hpp>	COMMENT
LOW	include/nlohmann/json.hpp	321	// container types //	COMMENT
LOW	include/nlohmann/json.hpp	421	#endif	COMMENT
LOW	include/nlohmann/json.hpp	441		COMMENT
LOW	include/nlohmann/json.hpp	921		COMMENT
LOW	include/nlohmann/json.hpp	941	// array/object, which neither allocates nor recurses more	COMMENT
LOW	include/nlohmann/json.hpp	2241	/// detail::has_stable_elements), erasing a member may move the members	COMMENT
LOW	include/nlohmann/json.hpp	2261		COMMENT
LOW	include/nlohmann/json.hpp	5541	JSON_IMPLEMENT_OPERATOR( <, false, false, operator<(lhs_type, rhs_type),	COMMENT
LOW	include/nlohmann/json.hpp	5961	/// @}	COMMENT
LOW	include/nlohmann/json.hpp	6121		COMMENT
LOW	include/nlohmann/json.hpp	6161	// the deleted version is a function template after the class, because	COMMENT
LOW	include/nlohmann/json.hpp	7681	// ordered_json, also needs the common keys to be in the same order	COMMENT
LOW	include/nlohmann/json.hpp	7741	return true;	COMMENT
LOW	include/nlohmann/json.hpp	7901	// and every pair of elements is still diffed completely before the	COMMENT
LOW	include/nlohmann/json.hpp	8481		COMMENT
LOW	include/nlohmann/adl_serializer.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/json_literals.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/json_literals.hpp	21	// amalgamation inlines macro_scope.hpp only once), so only standard and public	COMMENT
LOW	include/nlohmann/byte_container_with_subtype.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/json_view.hpp	21	* The source text must outlive a document that borrows it (lvalue byte *	COMMENT
LOW	include/nlohmann/json_view.hpp	41	#endif	COMMENT
LOW	include/nlohmann/json_view.hpp	61	// IWYU pragma: no_include "nlohmann/detail/meta/type_traits.hpp"	COMMENT
LOW	include/nlohmann/json_view.hpp	1221	}	COMMENT
LOW	include/nlohmann/json_fwd.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/detail/hash.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/detail/string_escape.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/detail/json_ref.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/detail/value_t.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/detail/string_concat.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/detail/string_utils.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	1	// __ _____ _____ _____	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	21	#if defined(__clang__)	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	41	#elif (defined(__cplusplus) && __cplusplus > 202002L) \|\| (defined(_MSVC_LANG) && _MSVC_LANG > 202002L)	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	61	#if __has_include(<version>)	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	81	#if defined(__MINGW32__) && defined(__GNUC__) && __GNUC__ == 8	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	101	#undef JSON_HAS_EXPERIMENTAL_FILESYSTEM	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	121		COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	141	#define JSON_HAS_RANGES 0	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	161		COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	181		COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	201	#else	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	221	// GCC targeting MinGW and with every other toolchain the library is tested on.	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	241	// override exception macros	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	261	// allow overriding assert	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	441	#define NLOHMANN_JSON_PASTE2(func, v1) func(v1)	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	461	#define NLOHMANN_JSON_PASTE22(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	481	#define NLOHMANN_JSON_PASTE42(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19	COMMENT
LOW	include/nlohmann/detail/macro_scope.hpp	561	NLOHMANN_JSON_DOUBLE_PASTE7, \	COMMENT
721 more matches not shown…

Deep Nesting25 hits · 25 pts

Severity	File	Line	Context
LOW	tools/serve_header/serve_header.py	166	CODE
LOW	tools/serve_header/serve_header.py	201	CODE
LOW	tools/serve_header/serve_header.py	229	CODE
LOW	tools/check_build_options/check_build_options.py	101	CODE
LOW	tools/amalgamate/amalgamate.py	148	CODE
LOW	tools/amalgamate/amalgamate.py	211	CODE
LOW	tools/gdb_pretty_printer/nlohmann-json.py	16	CODE
LOW	tests/benchmarks/json_view/compare.py	209	CODE
LOW	tests/benchmarks/json_view/compare.py	236	CODE
LOW	tests/thirdparty/imapdl/filterbr.py	8	CODE
LOW	tests/thirdparty/imapdl/filterbr.py	37	CODE
LOW	tests/thirdparty/imapdl/filterbr.py	84	CODE
LOW	docs/docset/generate_docset.py	65	CODE
LOW	docs/docset/generate_docset.py	412	CODE
LOW	docs/mkdocs/hooks/api_changes.py	54	CODE
LOW	docs/mkdocs/hooks/api_changes.py	107	CODE
LOW	docs/mkdocs/hooks/unreleased_versions.py	45	CODE
LOW	docs/mkdocs/scripts/check_structure.py	20	CODE
LOW	docs/mkdocs/scripts/check_structure.py	219	CODE
LOW	docs/mkdocs/scripts/check_structure.py	249	CODE
LOW	docs/mkdocs/scripts/check_structure.py	278	CODE
LOW	docs/mkdocs/scripts/check_version_history.py	72	CODE
LOW	docs/mkdocs/scripts/figures/exception_map.py	53	CODE
LOW	docs/mkdocs/scripts/slideshow/build.py	171	CODE
LOW	docs/mkdocs/scripts/slideshow/build.py	345	CODE

Decorative Section Separators6 hits · 18 pts

Severity	File	Line	Snippet	Context
MEDIUM	tests/benchmarks/json_view/compare.py	96	# ---------------------------------------------------------------------------	COMMENT
MEDIUM	tests/benchmarks/json_view/compare.py	98	# ---------------------------------------------------------------------------	COMMENT
MEDIUM	tests/benchmarks/json_view/compare.py	205	# ---------------------------------------------------------------------------	COMMENT
MEDIUM	tests/benchmarks/json_view/compare.py	207	# ---------------------------------------------------------------------------	COMMENT
MEDIUM	tests/benchmarks/json_view/compare.py	232	# ---------------------------------------------------------------------------	COMMENT
MEDIUM	tests/benchmarks/json_view/compare.py	234	# ---------------------------------------------------------------------------	COMMENT

Fake / Example Data13 hits · 13 pts

Severity	File	Line	Snippet	Context
LOW	tests/src/unit-udt.cpp	436	optPerson.reset(new udt::person{{42}, {"John Doe"}, udt::country::russia}); // NOLINT(cppcoreguidelines-owni	CODE
LOW	tests/src/unit-udt.cpp	445	auto person = udt::person{{42}, {"John Doe"}, udt::country::russia};	CODE
LOW	tests/src/unit-udt.cpp	551	optPerson.reset(new udt::person{{42}, {"John Doe"}, udt::country::russia}); // NOLINT(cppcoreguidelines-owning-m	CODE
LOW	tests/src/unit-udt.cpp	560	auto person = udt::person{{42}, {"John Doe"}, udt::country::russia};	CODE
LOW	tests/src/unit-conversions2.cpp	792	std::optional<std::string> opt_get_to = "placeholder";	CODE
LOW	…mann_define_type_intrusive_only_serialize_explicit.cpp	12	std::string name = "John Doe";	CODE
LOW	…s/examples/nlohmann_define_type_intrusive_explicit.cpp	12	std::string name = "John Doe";	CODE
LOW	…ohmann_define_type_intrusive_with_default_explicit.cpp	12	std::string name = "John Doe";	CODE
LOW	…nn_define_type_non_intrusive_with_default_explicit.cpp	11	std::string name = "John Doe";	CODE
LOW	…hmann_define_type_non_intrusive_with_default_macro.cpp	11	std::string name = "John Doe";	CODE
LOW	…docs/examples/nlohmann_define_type_intrusive_macro.cpp	12	std::string name = "John Doe";	CODE
LOW	…lohmann_define_type_intrusive_only_serialize_macro.cpp	12	std::string name = "John Doe";	CODE
LOW	…/nlohmann_define_type_intrusive_with_default_macro.cpp	12	std::string name = "John Doe";	CODE

Empty Error Handlers2 hits · 10 pts

Severity	File	Line	Snippet	Context
HIGH	tests/benchmarks/json_view/compare.py	217	except OSError:	CODE
HIGH	docs/mkdocs/hooks/copy_markdown_source.py	47	except (SnippetMissingError, OSError):	CODE

Hallucination Indicators1 hit · 10 pts

Severity	File	Line	Snippet	Context
CRITICAL	.github/workflows/comment_check_amalgamation.yml	85	const opts = github.rest.issues.listForRepo.endpoint.merge({	CODE

Excessive Try-Catch Wrapping3 hits · 3 pts

Severity	File	Line	Snippet	Context
LOW	tools/serve_header/serve_header.py	426	except Exception:	CODE
LOW	tools/gdb_pretty_printer/nlohmann-json.py	32	except Exception:	CODE
LOW	docs/docset/generate_docset.py	375	except Exception as e: # noqa: BLE001	CODE

Unused Imports3 hits · 3 pts

Severity	File	Line	Context
LOW	tools/amalgamate/amalgamate.py	32	CODE
LOW	tools/amalgamate/amalgamate.py	33	CODE
LOW	tools/amalgamate/amalgamate.py	34	CODE

Hyper-Verbose Identifiers2 hits · 2 pts

Severity	File	Line	Snippet	Context
LOW	tools/serve_header/serve_header.py	255	class HeaderRequestHandler(SimpleHTTPRequestHandler):	CODE
LOW	tools/check_build_options/check_build_options.py	63	def cmake_pkgconfig_definitions(cmake):	CODE

AI Slop Vocabulary1 hit · 2 pts

Severity	File	Line	Snippet	Context
MEDIUM	docs/mkdocs/scripts/mermaid/package-lock.json	1402	"resolved": "https://registry.npmjs.org/robust-predicates/-/robust-predicates-3.0.3.tgz",	CODE

nlohmann/json

Open-Source Code Quality, Security and Technical Debt Review