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This report summarizes scanner evidence for microsoft/SandDance, a TypeScript project with 7,155 GitHub stars. SynthScan examined 131,322 lines of code across 702 source files, recording 321 pattern matches distributed across 7 syntactic categories. The legacy adjusted pattern signal is 1.9 (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.
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.
Can maintainers explain intent, assumptions, and trade-offs? 317 finding(s).
Are imports declared and package/API names verified? 4 finding(s).
Are wrappers, guards, and repeated structures necessary? 246 finding(s).
Which changes need focused human review? 321 finding(s).
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.
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.
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.
The scanner identified 321 distinct pattern matches across 7 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.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docs/tests/sanddance-specs/v1/js/sanddance-specs.js | 1173 | function getSpecBuilderPropsForChart(specContext) { | CODE |
| LOW | docs/tests/sanddance-specs/v1/js/sanddance-specs.js | 3335 | function serializeAsVegaExpression(bin, firstFieldName, lastFieldName, clause) { | CODE |
| LOW | docs/tests/sanddance-specs/v2/js/sanddance-specs.js | 1173 | function getSpecBuilderPropsForChart(specContext) { | CODE |
| LOW | docs/tests/sanddance-specs/v2/js/sanddance-specs.js | 3335 | function serializeAsVegaExpression(bin, firstFieldName, lastFieldName, clause) { | CODE |
| LOW | docs/external/js/react.development.js | 212 | function refineResolvedLazyComponent(lazyComponent) { | CODE |
| LOW | docs/external/js/react.development.js | 297 | function setCurrentlyValidatingElement(element) { | CODE |
| LOW | docs/external/js/react.development.js | 684 | function defineKeyPropWarningGetter(props, displayName) { | CODE |
| LOW | docs/external/js/react.development.js | 702 | function defineRefPropWarningGetter(props, displayName) { | CODE |
| LOW | docs/external/js/react.development.js | 720 | function warnIfStringRefCannotBeAutoConverted(config) { | CODE |
| LOW | docs/external/js/react.development.js | 1230 | function mapSingleChildIntoContext(bookKeeping, child, childKey) { | CODE |
| LOW | docs/external/js/react.development.js | 1252 | function mapIntoWithKeyPrefixInternal(children, array, prefix, func, context) { | CODE |
| LOW | docs/external/js/react.development.js | 1731 | function getDeclarationErrorAddendum() { | CODE |
| LOW | docs/external/js/react.development.js | 1743 | function getSourceInfoErrorAddendum(source) { | CODE |
| LOW | docs/external/js/react.development.js | 1753 | function getSourceInfoErrorAddendumForProps(elementProps) { | CODE |
| LOW | docs/external/js/react.development.js | 1769 | function getCurrentComponentErrorInfo(parentType) { | CODE |
| LOW | docs/external/js/react.development.js | 1946 | function createElementWithValidation(type, props, children) { | CODE |
| LOW | docs/external/js/react.development.js | 2010 | function createFactoryWithValidation(type) { | CODE |
| LOW | docs/external/js/react.development.js | 2037 | function cloneElementWithValidation(element, props, children) { | CODE |
| LOW | docs/external/js/react.development.js | 2397 | function startLoggingProfilingEvents() { | CODE |
| LOW | docs/external/js/react.development.js | 2403 | function stopLoggingProfilingEvents() { | CODE |
| LOW | docs/external/js/react.development.js | 3125 | function onInteractionScheduledWorkCompleted(interaction) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 3790 | function setAttemptUserBlockingHydration(fn) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 3794 | function setAttemptContinuousHydration(fn) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 3798 | function setAttemptHydrationAtCurrentPriority(fn) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 3819 | function isReplayableDiscreteEvent(eventType) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 3823 | function trapReplayableEventForDocument(topLevelType, document, listenerMap) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 3827 | function eagerlyTrapReplayableEvents(container, document) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 7882 | function commitHydratedSuspenseInstance(suspenseInstance) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 7886 | function didNotMatchHydratedContainerTextInstance(parentContainer, textInstance, text) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 7891 | function didNotMatchHydratedTextInstance(parentType, parentProps, parentInstance, textInstance, text) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 7896 | function didNotHydrateContainerInstance(parentContainer, instance) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 7914 | function didNotFindHydratableContainerInstance(parentContainer, type, props) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 7919 | function didNotFindHydratableContainerTextInstance(parentContainer, text) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 7924 | function didNotFindHydratableInstance(parentType, parentProps, parentInstance, type, props) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 7929 | function didNotFindHydratableTextInstance(parentType, parentProps, parentInstance, text) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 7934 | function didNotFindHydratableSuspenseInstance(parentType, parentProps, parentInstance) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 8369 | function accumulateDirectDispatchesSingle(event) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 8375 | function accumulateTwoPhaseDispatches(events) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 8378 | function accumulateEnterLeaveDispatches(leave, enter, from, to) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 8381 | function accumulateDirectDispatches(events) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 9358 | function getTargetInstForClickEvent(topLevelType, targetInst) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 9364 | function getTargetInstForInputOrChangeEvent(topLevelType, targetInst) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 9370 | function handleControlledInputBlur(node) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 14631 | function setDefaultShallowSuspenseContext(parentContext) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 14634 | function setShallowSuspenseContext(parentContext, shallowContext) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 14637 | function addSubtreeSuspenseContext(parentContext, subtreeContext) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 23025 | function isAlreadyFailedLegacyErrorBoundary(instance) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 23028 | function markLegacyErrorBoundaryAsFailed(instance) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 23036 | function prepareToThrowUncaughtError(error) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 23045 | function captureCommitPhaseErrorOnRoot(rootFiber, sourceFiber, error) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 23242 | function flushRenderPhaseStrictModeWarningsInDEV() { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 23252 | function stopFinishedWorkLoopTimer() { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 23258 | function stopInterruptedWorkLoopTimer() { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 23401 | function warnIfNotScopedWithMatchingAct(fiber) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 23408 | function warnIfNotCurrentlyActingEffectsInDEV(fiber) { | CODE |
| LOW⚡ | docs/external/js/react-dom.development.js | 23416 | function warnIfNotCurrentlyActingUpdatesInDEV(fiber) { | CODE |
| LOW | docs/external/js/react-dom.development.js | 299 | function invokeGuardedCallbackAndCatchFirstError(name, func, context, a, b, c, d, e, f) { | CODE |
| LOW | docs/external/js/react-dom.development.js | 812 | function flushDiscreteUpdatesIfNeeded(timeStamp) { | CODE |
| LOW | docs/external/js/react-dom.development.js | 829 | function setBatchingImplementation(_batchedUpdatesImpl, _discreteUpdatesImpl, _flushDiscreteUpdatesImpl, _batchedEvent | CODE |
| LOW | docs/external/js/react-dom.development.js | 935 | function shouldRemoveAttributeWithWarning(name, value, propertyInfo, isCustomComponentTag) { | CODE |
| 186 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docs/_sass/settings/_settings.colors.scss | 1 | // Copyright (c) Microsoft Corporation. All rights reserved. | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 21 | /// @type Color | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 201 | COMMENT | |
| LOW | docs/_sass/settings/_settings.colors.scss | 421 | /// @group Mint | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 601 | $ms-sky-400: #0072cc; | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 781 | COMMENT | |
| LOW | docs/_sass/settings/_settings.colors.scss | 961 | /// @type Color | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1001 | COMMENT | |
| LOW | docs/_sass/settings/_settings.colors.scss | 1141 | /// @group Brown | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1321 | /// @group Black | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1361 | /// @see ms-red-400 | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1381 | /// @see ms-yellow-400 | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1401 | /// @see ms-navy-400 | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1441 | /// @see ms-black-300 | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1461 | COMMENT | |
| LOW | docs/_sass/settings/_settings.colors.scss | 1481 | /// @group Dark UI Colors | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1501 | COMMENT | |
| LOW | docs/_sass/settings/_settings.colors.scss | 1521 | COMMENT | |
| LOW | docs/_sass/settings/_settings.colors.scss | 1581 | /// @group Microsoft Logo Colors | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1601 | $ms-xbox-red: #e31123; | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1621 | $ms-xbox-lavender: #b144c0; | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1641 | $ms-xbox-sky: #1081ca; | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1661 | $ms-xbox-lime: #54a81b; | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1681 | $ms-xbox-green: #107c10; | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1761 | /// @group Zune | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1781 | $ms-zune-gradient: linear-gradient(to bottom, $ms-zune-pink 0%, $ms-zune-orange 100%); | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1821 | /// Excel's "Good" cell color | COMMENT |
| LOW | docs/_sass/settings/_settings.colors.scss | 1841 | /// Excel's "Check Cell" cell color | COMMENT |
| LOW | docs/_sass/sass-mq/_mq.scss | 1 | @charset "UTF-8"; // Fixes an issue where Ruby locale is not set properly | COMMENT |
| LOW | docs/_sass/sass-mq/_mq.scss | 21 | /// | COMMENT |
| LOW | docs/_sass/sass-mq/_mq.scss | 41 | /// Static breakpoint (for fixed-width layouts) | COMMENT |
| LOW | docs/_sass/sass-mq/_mq.scss | 61 | /// Show breakpoints in the top right corner | COMMENT |
| LOW | docs/_sass/sass-mq/_mq.scss | 101 | /// | COMMENT |
| LOW | docs/_sass/sass-mq/_mq.scss | 121 | /// @param {String | Boolean} $and (false) - Additional media query parameters | COMMENT |
| LOW | docs/_sass/sass-mq/_mq.scss | 141 | /// color: red; | COMMENT |
| LOW | docs/_sass/sass-mq/_mq.scss | 241 | @mixin mq-add-breakpoint($name, $width) { | COMMENT |
| LOW | docs/_sass/inuitcss/tools/_tools.font-size.scss | 1 | ///* ======================================================================== | COMMENT |
| LOW | docs/_sass/inuitcss/objects/_objects.ratio.scss | 1 | /* ========================================================================== | COMMENT |
| LOW | docs/_sass/inuitcss/objects/_objects.crop.scss | 1 | /* ========================================================================== | COMMENT |
| LOW | docs/_sass/components/_components.buttons.scss | 1 | // Copyright (c) Microsoft Corporation. All rights reserved. | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 121 | // unintuitive, though, because even though React has caught the error, from | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 861 | // A reserved attribute. | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 7981 | // If it's not a container, we check if it's an instance. | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 8001 | // Next we need to figure out if the node that skipped past is | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 11301 | // TODO: Should we warn if timeoutMs is lower than the normal pri expiration time? | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 13941 | COMMENT | |
| LOW | docs/external/js/react-dom.development.js | 16901 | // the clone algorithm to create a copy of all the current children. | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 17081 | var prevProps = current.memoizedProps; | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 17781 | } | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 20201 | if (lastEffect !== null) { | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 21021 | // After this we'll use a set of heuristics to determine whether this | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 21041 | // | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 21401 | } | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 22121 | if (workInProgress === null || workInProgress.return === null) { | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 23101 | } | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 23741 | // | COMMENT |
| LOW | docs/external/js/react-dom.development.js | 23781 | } | COMMENT |
| LOW | extensions/azdata-sanddance/src/azdata.proposed.d.ts | 601 | /// <summary> | COMMENT |
| LOW | extensions/azdata-sanddance/src/azdata.proposed.d.ts | 621 | /// <summary> | COMMENT |
| LOW | packages/vega-morphcharts/src/marks/text.ts | 81 | // return 'start'; | COMMENT |
| 7 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| CRITICAL | packages/sanddance-explorer/src/controls/columnMap.tsx | 184 | signals = props.explorer.viewer.vegaSpec.signals.filter(s => props.specRole.signals.indexOf(s.name) >= 0); | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | package-lock.json | 13169 | "resolved": "https://registry.npmjs.org/robust-predicates/-/robust-predicates-3.0.2.tgz", | CODE |
| MEDIUM | packages/powerbi/package-lock.json | 7050 | "resolved": "https://registry.npmjs.org/robust-predicates/-/robust-predicates-3.0.2.tgz", | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docs/external/js/react-dom.development.js | 5021 | placeholder: 'placeholder', | CODE |
| LOW | packages/vega-morphcharts/src/interfaces.ts | 66 | * Flag whether this cube is a "placeholder" and is not to be rendered nor contains cube data. | COMMENT |
| LOW | packages/vega-deck.gl/src/interfaces.ts | 62 | * Flag whether this cube is a "placeholder" and is not to be rendered nor contains cube data. | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | .github/workflows/codeql.yml | 58 | # If you are analyzing a compiled language, you can modify the 'build-mode' for that language to customize how | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | docs/external/js/react-dom.development.js | 8409 | function getData() { | CODE |