microsoft/mxc

4.6

Adjusted Score

4.6

Raw Score

100%

Time Factor

2026-07-14

Last Push

1.1K

Stars

Rust

Language

113.2K

Lines of Code

606

Files

460

Pattern Hits

2026-07-14

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 19LOW 441

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 460 distinct pattern matches across 8 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.

Over-Commented Block397 hits · 392 pts

Severity	File	Line	Snippet	Context
LOW	.azure-pipelines/1ES.Build.Official.yml	1	# Copyright (c) Microsoft Corporation. All rights reserved.	COMMENT
LOW	.azure-pipelines/templates/Rust.Toolchain.Public.yml	1	# Copyright (c) Microsoft Corporation. All rights reserved.	COMMENT
LOW	.azure-pipelines/templates/Rust.Toolchain.Public.yml	21	# That URL is byte-stable for a given (version, triple) so the SHA-256	COMMENT
LOW	.azure-pipelines/templates/Fuzz.Build.Job.yml	1	# Copyright (c) Microsoft Corporation. All rights reserved.	COMMENT
LOW	tests/scripts/run_bwrap_most_specific_test.sh	1	#!/bin/bash	COMMENT
LOW	tests/scripts/run_lxc_timeout_test.sh	1	#!/bin/bash	COMMENT
LOW	tests/scripts/run_lxc_env_cwd_test.sh	1	#!/bin/bash	COMMENT
LOW	tests/scripts/run_bwrap_filesystem_object_test.sh	1	#!/bin/bash	COMMENT
LOW	sdk/tests/unit/wire-conformance.test.ts	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	sdk/tests/unit/wire-conformance.test.ts	21	// cleanly and catches enum/type NARROWING in the wire model.	COMMENT
LOW	sdk/tests/unit/wire-conformance.test.ts	141	// Every public field must either exist on the wire type or be on the EXPLICIT	COMMENT
LOW	sdk/tests/unit/wire-conformance.test.ts	161	type _FilesystemKeys = AssertTrue<Equivalent<OnlyInPublic<FilesystemConfig, WireFilesystem>, 'clearPolicyOnExit'>>;	COMMENT
LOW	sdk/tests/unit/wire-conformance-state-aware.test.ts	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	sdk/tests/unit/wire-conformance-state-aware.test.ts	21	// ------------------------------------ --------------------------------------	COMMENT
LOW	sdk/tests/integration/test-helpers.ts	141	export const debugSpawnOptions = {	COMMENT
LOW	sdk/tests/integration/test-helpers.ts	241		COMMENT
LOW	sdk/tests/integration/wslc-e2e.test.ts	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	…ests/integration/isolation-session-state-aware.test.ts	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	sdk/tests/integration/microvm-filesystem.test.ts	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	sdk/tests/integration/linux-process-container.test.ts	21	// MXC_SKIP_LXC_TESTS=1 skips the entire LXC describe block. Provided as	COMMENT
LOW	scripts/check-csharp-bindings-codegen.js	1	#!/usr/bin/env node	COMMENT
LOW	scripts/versioning/check-schema-codegen.js	1	#!/usr/bin/env node	COMMENT
LOW	scripts/versioning/check-sdk-types-codegen.js	1	#!/usr/bin/env node	COMMENT
LOW	scripts/versioning/check-rust-toolchain-sync.js	1	#!/usr/bin/env node	COMMENT
LOW	scripts/versioning/check-schema-versions.js	1	#!/usr/bin/env node	COMMENT
LOW	scripts/versioning/validate-configs.js	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	.github/workflows/issue-triage.lock.yml	1	# gh-aw-metadata: {"schema_version":"v4","frontmatter_hash":"8915a4b385c4f7e28a8098eb47c0de7c278dadecfb3b074a7afcbbfc433	COMMENT
LOW	.github/workflows/issue-triage.lock.yml	21	# gh aw compile	COMMENT
LOW	.github/workflows/SDK.Integration.Test.Job.yml	61	- name: Install bubblewrap + LXC stack (Linux only, cached)	COMMENT
LOW	csharp/Microsoft.Mxc.Sdk/ErrorCode.cs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/rust-toolchain.toml	1	# Pin the Rust toolchain used for local development to match CI.	COMMENT
LOW	src/tools/mxc_schema_gen/src/main.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/tools/mxc_diagnostic_console/src/etw.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/tools/mxc_diagnostic_console/src/main.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/mxc_engine/src/policy.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/mxc_engine/src/policy.rs	21	use wxc_common::mxc_error::MxcError;	COMMENT
LOW	src/core/mxc_engine/src/policy.rs	521	/// Execution timeout in milliseconds (`None` = no timeout).	COMMENT
LOW	src/core/mxc_engine/src/policy.rs	601	self	COMMENT
LOW	src/core/mxc_engine/src/dispatch.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/mxc_engine/src/dispatch.rs	141	#[cfg(target_os = "windows")]	COMMENT
LOW	src/core/mxc_engine/src/lib.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/mxc_engine/src/run.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/mxc_engine/src/run.rs	21	//! without such machinery (`lxc-exec`, `mxc-exec-mac`, and the FFI layer) use	COMMENT
LOW	src/core/mxc_engine/src/run.rs	41	/// ProcessContainer DACL-fallback tier: its `Drop` restores the host ACEs the	COMMENT
LOW	src/core/mxc_engine/src/run.rs	61	dacl_manager: None,	COMMENT
LOW	src/core/mxc_engine/src/state_aware.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/mxc_engine/src/platform.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/mxc-sdk/tests/streaming.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/mxc-sdk/tests/sandbox.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/mxc-sdk/tests/sandbox.rs	241	// Windows ProcessContainer (AppContainer + BaseContainer) — integration tests.	COMMENT
LOW	src/core/mxc-sdk/src/lib.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/mxc-sdk/src/lib.rs	21	//! let policy = SandboxPolicy {	COMMENT
LOW	src/core/mxc-sdk/src/lib.rs	41	//! The selected backend is driven by the `containment` field in the request	COMMENT
LOW	src/core/mxc-sdk/src/lib.rs	81	///	COMMENT
LOW	src/core/mxc-sdk/src/sandbox.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/mxc-sdk/src/sandbox.rs	101	/// OS / wait failure.	COMMENT
LOW	src/core/lxc/src/main.rs	41	#[arg(long = "containername")]	COMMENT
LOW	src/core/lxc/src/main.rs	61		COMMENT
LOW	src/core/wxc_common/src/interruptible_reader.rs	1	// Copyright (c) Microsoft Corporation.	COMMENT
LOW	src/core/wxc_common/src/interruptible_reader.rs	81		COMMENT
337 more matches not shown…

Decorative Section Separators15 hits · 45 pts

Severity	File	Line	Snippet	Context
MEDIUM	src/core/lxc/src/main.rs	210	// ── Telemetry init (experimental) ───────────────────────────────	COMMENT
MEDIUM	src/core/lxc/src/main.rs	255	// ── Telemetry emit (experimental) ───────────────────────────────	COMMENT
MEDIUM	src/core/wxc_common/src/config_parser.rs	3825	// ── Telemetry ────────────────────────────────────────────────────	COMMENT
MEDIUM	src/core/wxc_common/src/process_util.rs	378	// ── Captured-output process execution ──────────────────────────────────────	COMMENT
MEDIUM	src/core/wxc_common/src/process_util.rs	510	// ── Capability SID helpers ────────────────────────────────────────────────	COMMENT
MEDIUM	src/core/wxc_common/src/process_util.rs	523	// ── Sibling binary resolution ─────────────────────────────────────────────	COMMENT
MEDIUM	src/core/wxc/src/main.rs	747	// ── Telemetry init (experimental) ───────────────────────────────	COMMENT
MEDIUM	src/core/wxc/src/main.rs	1080	// ── Telemetry emit (experimental) ───────────────────────────────	COMMENT
MEDIUM	…ackends/appcontainer/common/src/appcontainer_runner.rs	1085	// ───────────────────────────────────────────────────────────────────────────	COMMENT
MEDIUM	…ackends/appcontainer/common/src/appcontainer_runner.rs	1087	// ───────────────────────────────────────────────────────────────────────────	COMMENT
MEDIUM	…backends/isolation_session/common/src/console_relay.rs	312	// ── ConsoleRelayParams + create_console_relay_thread ──────────────────	COMMENT
MEDIUM	src/backends/isolation_session/common/src/pipe_relay.rs	100	// ── Stop-event-aware pipe relay ────────────────────────────────────────────	COMMENT
MEDIUM	src/backends/isolation_session/common/src/pipe_relay.rs	505	// ── Tests for `create_relay_thread_with_stop` ──────────────────────────	COMMENT
MEDIUM	…/backends/isolation_session/common/src/console_mode.rs	25	// ── Local console raw-VT-mode RAII guard ──────────────────────────────────	COMMENT
MEDIUM	…/backends/isolation_session/common/src/console_mode.rs	145	// ── Console Ctrl handler RAII guard ──────────────────────────────────────	COMMENT

Structural Annotation Overuse20 hits · 34 pts

Severity	File	Line	Snippet	Context
LOW	docs/authoring-a-new-feature.md	26	## Step 0: Where does my feature go?	COMMENT
LOW	docs/authoring-a-new-feature.md	57	## Step 1: Write a Feature Spec	COMMENT
LOW	docs/authoring-a-new-feature.md	81	## Step 2: OS changes (if applicable)	COMMENT
LOW	docs/authoring-a-new-feature.md	122	## Step 1: Add the field to the wire model (the schema source of truth)	COMMENT
LOW	docs/authoring-a-new-feature.md	162	## Step 2: Add the model struct	COMMENT
LOW	docs/authoring-a-new-feature.md	186	## Step 3: Map the wire field to the domain model	COMMENT
LOW	docs/authoring-a-new-feature.md	220	## Step 4: Implement the feature in the runner	COMMENT
LOW	docs/authoring-a-new-feature.md	270	## Step 5: Add a test config	COMMENT
LOW	docs/authoring-a-new-feature.md	309	## Step 6: Update the SDK (if needed)	COMMENT
LOW⚡	src/backends/windows_sandbox/guest/src/main.rs	29	// Step 3: accept 4 connections from the host daemon.	COMMENT
LOW⚡	src/backends/windows_sandbox/guest/src/main.rs	37	// Step 4: lock down firewall — only allow the host IP.	COMMENT
LOW⚡	src/backends/windows_sandbox/guest/src/main.rs	43	// Step 5: enter command loop.	COMMENT
LOW⚡	…c/backends/appcontainer/common/src/sandbox_tracking.rs	166	// Step 1: Clear BFS filesystem policies (must happen before profile deletion).	COMMENT
LOW⚡	…c/backends/appcontainer/common/src/sandbox_tracking.rs	169	// Step 2: Delete the AppContainer profile.	COMMENT
LOW	…c/backends/appcontainer/common/src/sandbox_tracking.rs	192	// Step 3: Delete the registry tracking entry.	COMMENT
LOW	src/backends/isolation_session/common/src/manager.rs	122	/// Step 1: Provision an agent user. Returns the OS-assigned agent	COMMENT
LOW	src/backends/isolation_session/common/src/manager.rs	232	/// Step 2: Start the isolation session.	COMMENT
LOW	src/backends/isolation_session/common/src/manager.rs	282	/// Step 3: Create a process inside the started isolation session.	COMMENT
LOW	src/backends/isolation_session/common/src/manager.rs	542	/// Step 4: Stop the isolation session.	COMMENT
LOW	src/backends/isolation_session/common/src/manager.rs	554	/// Step 5: Deprovision the agent user.	COMMENT

Verbosity Indicators11 hits · 20 pts

Severity	File	Line	Snippet	Context
LOW⚡	src/backends/windows_sandbox/guest/src/main.rs	29	// Step 3: accept 4 connections from the host daemon.	COMMENT
LOW⚡	src/backends/windows_sandbox/guest/src/main.rs	37	// Step 4: lock down firewall — only allow the host IP.	COMMENT
LOW⚡	src/backends/windows_sandbox/guest/src/main.rs	43	// Step 5: enter command loop.	COMMENT
LOW⚡	…c/backends/appcontainer/common/src/sandbox_tracking.rs	166	// Step 1: Clear BFS filesystem policies (must happen before profile deletion).	COMMENT
LOW⚡	…c/backends/appcontainer/common/src/sandbox_tracking.rs	169	// Step 2: Delete the AppContainer profile.	COMMENT
LOW	…c/backends/appcontainer/common/src/sandbox_tracking.rs	192	// Step 3: Delete the registry tracking entry.	COMMENT
LOW	src/backends/isolation_session/common/src/manager.rs	122	/// Step 1: Provision an agent user. Returns the OS-assigned agent	COMMENT
LOW	src/backends/isolation_session/common/src/manager.rs	232	/// Step 2: Start the isolation session.	COMMENT
LOW	src/backends/isolation_session/common/src/manager.rs	282	/// Step 3: Create a process inside the started isolation session.	COMMENT
LOW	src/backends/isolation_session/common/src/manager.rs	542	/// Step 4: Stop the isolation session.	COMMENT
LOW	src/backends/isolation_session/common/src/manager.rs	554	/// Step 5: Deprovision the agent user.	COMMENT

Hyper-Verbose Identifiers12 hits · 12 pts

Severity	File	Line	Snippet	Context
LOW	tests/playground/src/renderer/app.ts	796	function updateContainmentDropdown(): void {	CODE
LOW	tests/playground/src/renderer/app.ts	819	function isExperimentalContainment(): boolean {	CODE
LOW	tests/playground/src/renderer/app.ts	827	function updatePlatformBadgeForContainment(containment: string): void {	CODE
LOW	sdk/src/helper.ts	47	export function warnLegacyContainmentOnce(legacy: string, canonical: string): void {	CODE
LOW	sdk/src/helper.ts	147	export function resolveBinaryAndCommonArgs(	CODE
LOW	sdk/src/sandbox.ts	20	function generateRandomContainerName(): string {	CODE
LOW	sdk/src/sandbox.ts	137	function buildProcessBaseContainerConfig(	CODE
LOW	sdk/src/sandbox.ts	722	function tryParseErrorEnvelopeFromLines(output: string): MxcError \| null {	CODE
LOW	sdk/src/platform.ts	113	function isWindowsSandboxAvailable(): boolean {	CODE
LOW	sdk/src/platform.ts	226	function populateIsolationFromProbe(support: PlatformSupport): void {	CODE
LOW	sdk/src/platform.ts	379	function getDarwinRustTargetTriple(): string {	CODE
LOW	sdk/src/policy.ts	143	function hasAllApplicationPackagesAccess(dirPath: string): boolean {	CODE

AI Slop Vocabulary3 hits · 9 pts

Severity	File	Line	Snippet	Context
MEDIUM	sdk/src/state-aware-helper.ts	140	// Not JSON. Definitely script output.	COMMENT
MEDIUM	src/core/wxc_common/src/filesystem_dacl.rs	3128	// test is robust to host-specific ACL layouts.	COMMENT
MEDIUM	src/backends/windows_sandbox/daemon/src/pipe_server.rs	317	/// TODO: Change to a more robust approach like bind to port 0 (OS-assigned)	COMMENT

Modern AI Meta-Vocabulary1 hit · 3 pts

Severity	File	Line	Snippet	Context
MEDIUM	.github/workflows/Build.yml	2	# split: this file orchestrates, each stage lives in its own reusable.	COMMENT

Excessive Try-Catch Wrapping1 hit · 1 pts

Severity	File	Line	Snippet	Context
LOW	src/testing/wxc_e2e_tests/tests/e2e_windows.rs	929	except Exception as e:\n\	CODE

Analysis Overview

What These Metrics Mean

Score History

Severity Breakdown

Directory Score Breakdown

Pattern Findings