0.6

Adjusted Signal

0.6

Raw Pattern Score

100%

Time Factor

2026-10-31

Last Push

8.4K

Stars

C++

Language

298.8K

Lines of Code

988

Files

152

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 2.3/100 · LOW

Can maintainers explain intent, assumptions, and trade-offs? 138 finding(s).

Hallucinated Dependency & Supply Chain Risk 0.0/100 · LOW

Are imports declared and package/API names verified? 2 finding(s).

Agent Over-Engineering Ratio 1.0/100 · LOW

Are wrappers, guards, and repeated structures necessary? 28 finding(s).

PR Review Velocity Impact 2.9/100 · LOW

Which changes need focused human review? 152 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 13LOW 139

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 152 distinct pattern matches across 8 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 Block118 hits · 118 pts

Severity	File	Line	Snippet	Context
LOW	proxygen/install.sh	1	#!/usr/bin/env bash	COMMENT
LOW	proxygen/build.sh	1	#!/usr/bin/env bash	COMMENT
LOW	proxygen/httpclient/samples/httperf2/HTTPerf2.cpp	21	#include <folly/FileUtil.h>	COMMENT
LOW	proxygen/httpserver/HTTPServer.h	1	/*	COMMENT
LOW	proxygen/httpserver/tests/HTTPServerTest.cpp	1	/*	COMMENT
LOW	proxygen/httpserver/tests/HTTPServerTest.cpp	21	#include <folly/portability/Sockets.h>	COMMENT
LOW	proxygen/httpserver/samples/hq/ConnIdLogger.h	1	/*	COMMENT
LOW	proxygen/httpserver/samples/hq/HQClient.h	1	/*	COMMENT
LOW	proxygen/httpserver/samples/hq/SampleHandlers.h	1	/*	COMMENT
LOW	proxygen/httpserver/samples/hq/SampleHandlers.h	21	#include <proxygen/lib/http/HTTPMessage.h>	COMMENT
LOW	proxygen/httpserver/samples/hq/FizzContext.cpp	1	/*	COMMENT
LOW	proxygen/httpserver/samples/hq/test/test_0rtt_qpack.sh	1	#!/bin/bash	COMMENT
LOW	proxygen/httpserver/samples/static/StaticServer.cpp	1	/*	COMMENT
LOW	proxygen/lib/transport/qmux/test/QmuxSessionTest.cpp	1	/*	COMMENT
LOW	proxygen/lib/sampling/test/CMakeLists.txt	1	# Copyright (c) Meta Platforms, Inc. and affiliates.	COMMENT
LOW	proxygen/lib/utils/Export.h	1	/*	COMMENT
LOW	proxygen/lib/utils/Export.h	21	#if __GNUC__ >= 4	COMMENT
LOW	proxygen/lib/utils/Logging.cpp	1	/*	COMMENT
LOW	proxygen/lib/utils/AsyncTimeoutSet.cpp	101	// a call to timeoutExpired().	COMMENT
LOW	proxygen/lib/utils/AsyncTimeoutSet.cpp	181	//	COMMENT
LOW	proxygen/lib/utils/UnionBasedStatic.h	121		COMMENT
LOW	proxygen/lib/utils/gen_perfect_hash_table.sh	1	#!/usr/bin/env bash	COMMENT
LOW	proxygen/lib/utils/gen_perfect_hash_table.sh	21	# prior to it being passed to the gperf binary.	COMMENT
LOW	proxygen/lib/utils/PerfectIndexMap.h	21	// TODO: templatize the use of string as the value type; can instead use	COMMENT
LOW	proxygen/lib/utils/PerfectIndexMap.h	401	// (in otherKeyNames_) position within keys_.	COMMENT
LOW	proxygen/lib/utils/test/ZstdTests.cpp	1	/*	COMMENT
LOW	proxygen/lib/utils/test/ZlibTests.cpp	1	/*	COMMENT
LOW	proxygen/lib/utils/test/PerfectIndexMapBenchmark.cpp	21	// ============================================================================	COMMENT
LOW	proxygen/lib/http/HTTPConnector.h	1	/*	COMMENT
LOW	proxygen/lib/http/HTTPMessage.h	1	/*	COMMENT
LOW	proxygen/lib/http/HTTPMessage.h	21	#include <proxygen/lib/http/HeaderConstants.h>	COMMENT
LOW	proxygen/lib/http/HTTPConstants.h	21	// TRANSACTION_ABORT, // transaction sendAbort()	COMMENT
LOW	proxygen/lib/http/HTTPMessage.cpp	801	std::lock_guard<std::mutex> g(mutexDump);	COMMENT
LOW	proxygen/lib/http/gen_HTTPCommonHeaders.sh	21	if [ "x$4" != "x" ]; then	COMMENT
LOW	proxygen/lib/http/HQConnector.cpp	1	/*	COMMENT
LOW	proxygen/lib/http/webtransport/WebTransport.h	21	namespace proxygen {	COMMENT
LOW	proxygen/lib/http/webtransport/WebTransport.h	181	// Handle for write streams	COMMENT
LOW	proxygen/lib/http/webtransport/WebTransport.h	241	};	COMMENT
LOW	…en/lib/http/webtransport/test/QuicWebTransportTest.cpp	561		COMMENT
LOW	proxygen/lib/http/experimental/llhttp/llhttp.h	541	#ifdef __cplusplus	COMMENT
LOW	proxygen/lib/http/experimental/llhttp/llhttp.c	1	#include <stdlib.h>	COMMENT
LOW	proxygen/lib/http/codec/HTTP1xCodec.cpp	321	(HTTP_PARSER_ERRNO(&parser_) != HPE_PAUSED);	COMMENT
LOW	proxygen/lib/http/codec/HQFramer.h	61	PUSH_PROMISE = 0x05,	COMMENT
LOW	proxygen/lib/http/codec/CodecUtil.h	1	/*	COMMENT
LOW	proxygen/lib/http/codec/HTTPCodec.h	1	/*	COMMENT
LOW	proxygen/lib/http/codec/HTTP2Framer.h	1	/*	COMMENT
LOW	proxygen/lib/http/codec/compress/HPACKContext.cpp	21	std::pair<uint32_t, uint32_t> HPACKContext::getIndex(	COMMENT
LOW	…gen/lib/http/codec/compress/test/HPACKContextTests.cpp	1	/*	COMMENT
LOW	…xygen/lib/http/codec/compress/test/QPACKCodecTests.cpp	1	/*	COMMENT
LOW	…xygen/lib/http/codec/compress/test/HPACKCodecTests.cpp	1	/*	COMMENT
LOW	proxygen/lib/http/codec/test/HQCodecTest.cpp	1	/*	COMMENT
LOW	proxygen/lib/http/coro/HTTPCoroSession.cpp	1	/*	COMMENT
LOW	proxygen/lib/http/coro/HTTPCoroSession.h	1	/*	COMMENT
LOW	proxygen/lib/http/coro/HTTPCoroSession.h	21	#include <folly/container/EvictingCacheMap.h>	COMMENT
LOW	proxygen/lib/http/coro/benchmark/HTTPCoroBenchmark.cpp	1	/*	COMMENT
LOW	…/http/coro/transport/test/HTTPConnectTransportTest.cpp	841	// HTTPConnectAsyncTransport	COMMENT
LOW	…/lib/http/coro/transport/test/CoroSSLTransportTest.cpp	1	/*	COMMENT
LOW	proxygen/lib/http/coro/test/HTTPCoroSessionTests.cpp	241	// onHeadersComplete for missing stream	COMMENT
LOW	proxygen/lib/http/coro/test/HTTPCoroSessionTests.cpp	261	// write error cleanup	COMMENT
LOW	proxygen/lib/http/coro/test/HTTPSourceTests.cpp	1	/*	COMMENT
58 more matches not shown…

Decorative Section Separators12 hits · 42 pts

Severity	File	Line	Snippet	Context
MEDIUM⚡	proxygen/CMakeLists.txt	17	# =============================================================================	COMMENT
MEDIUM⚡	proxygen/CMakeLists.txt	19	# =============================================================================	COMMENT
MEDIUM⚡	proxygen/CMakeLists.txt	22	# =============================================================================	COMMENT
MEDIUM⚡	proxygen/CMakeLists.txt	24	# =============================================================================	COMMENT
MEDIUM	proxygen/httpserver/CMakeLists.txt	77	# =============================================================================	COMMENT
MEDIUM	proxygen/httpserver/CMakeLists.txt	79	# =============================================================================	COMMENT
MEDIUM	proxygen/lib/CMakeLists.txt	106	# =============================================================================	COMMENT
MEDIUM	proxygen/lib/CMakeLists.txt	109	# =============================================================================	COMMENT
MEDIUM	proxygen/lib/CMakeLists.txt	135	# =============================================================================	COMMENT
MEDIUM	proxygen/lib/CMakeLists.txt	139	# =============================================================================	COMMENT
MEDIUM	proxygen/lib/CMakeLists.txt	150	# =============================================================================	COMMENT
MEDIUM	proxygen/lib/CMakeLists.txt	152	# =============================================================================	COMMENT

Hyper-Verbose Identifiers16 hits · 16 pts

Severity	File	Line	Snippet	Context
LOW	proxygen/httpserver/RequestHandler.h	15	class ResponseHandler;	CODE
LOW	proxygen/httpserver/RequestHandler.h	22	class RequestHandler {	CODE
LOW	proxygen/httpserver/RequestHandlerAdaptor.h	16	class RequestHandler;	CODE
LOW	proxygen/httpserver/Mocks.h	22	class MockResponseHandler : public ResponseHandler {	CODE
LOW	proxygen/httpserver/Mocks.h	67	class MockRequestHandler : public RequestHandler {	CODE
LOW	proxygen/httpserver/ResponseHandler.h	15	class RequestHandler;	CODE
LOW	proxygen/httpserver/ResponseHandler.h	41	class ResponseHandler {	CODE
LOW	proxygen/httpserver/filters/DirectResponseHandler.h	19	class DirectResponseHandler : public RequestHandler {	CODE
LOW	…oxygen/httpserver/samples/websocket/WebSocketHandler.h	16	class ResponseHandler;	CODE
LOW	proxygen/httpserver/samples/echo/EchoHandler.h	15	class ResponseHandler;	CODE
LOW	proxygen/httpserver/samples/proxy/ProxyHandler.h	19	class ResponseHandler;	CODE
LOW	proxygen/httpserver/samples/static/StaticHandler.h	17	class ResponseHandler;	CODE
LOW	proxygen/lib/http/codec/H3EarlyDataHandler.h	36	class H3EarlyDataHandler : public quic::EarlyDataAppParamsHandler {	CODE
LOW	proxygen/lib/http/coro/HTTPCoroSession.h	44	class H3EarlyDataHandler;	CODE
LOW	proxygen/lib/http/session/HTTPDirectResponseHandler.h	17	class HTTPDirectResponseHandler : public HTTPTransaction::Handler {	CODE
LOW	proxygen/lib/http/session/CodecErrorResponseHandler.h	17	class CodecErrorResponseHandler : public HTTPTransaction::Handler {	CODE

AI Slop Vocabulary1 hit · 3 pts

Severity	File	Line	Snippet	Context
MEDIUM	proxygen/lib/http/session/HTTPSessionBase.h	831	// utilize getController/setController protected methods. This ensures we	COMMENT

Fake / Example Data2 hits · 2 pts

Severity	File	Line	Snippet	Context
LOW	…tructuredheaders/test/StructuredHeadersDecoderTest.cpp	117	EXPECT_EQ(m["name"], std::string("John Doe"));	CODE
LOW	…tructuredheaders/test/StructuredHeadersEncoderTest.cpp	317	std::string val2 = "John Doe";	CODE

TODO Padding1 hit · 2 pts

Severity	File	Line	Snippet	Context
LOW	proxygen/lib/http/coro/HTTPCoroSession.h	734	// TODO: implement	COMMENT

Structural Annotation Overuse1 hit · 2 pts

Severity	File	Line	Snippet	Context
LOW	proxygen/lib/http/session/HQSession.cpp	1663	// NOTE: This function needs to be idempotent. i.e. be a no-op if invoked	COMMENT

Deep Nesting1 hit · 1 pts

Severity	File	Line	Snippet	Context
LOW	proxygen/lib/utils/gen_trace_event_constants.py	15		CODE

facebook/proxygen

Open-Source Code Quality, Security and Technical Debt Review