CSS Working Group Editor Drafts
This report summarizes scanner evidence for w3c/csswg-drafts, a Bikeshed project with 4,901 GitHub stars. SynthScan examined 239,680 lines of code across 822 source files, recording 177 pattern matches distributed across 12 syntactic categories. The legacy adjusted pattern signal is 1.1 (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? 52 finding(s).
Are imports declared and package/API names verified? 116 finding(s).
Are wrappers, guards, and repeated structures necessary? 14 finding(s).
Which changes need focused human review? 177 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 177 distinct pattern matches across 12 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 | css-regions-1/examples/linked-boxes.html | 48 | <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Porro, cupiditate rerum et commodi ea repellat placeat e | CODE |
| LOW | css-regions-1/examples/linked-boxes.html | 48 | <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Porro, cupiditate rerum et commodi ea repellat placeat e | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3150 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus. | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3155 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3162 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3188 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus. | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3192 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3199 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3231 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3236 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3243 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3275 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3282 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3290 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3317 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3324 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3329 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3375 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3382 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3387 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3416 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3423 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3431 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3460 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3467 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3475 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3508 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus. | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3512 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus. | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3521 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3550 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus. | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3558 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus. | CODE |
| LOW⚡ | css-gcpm-3/2009-06-10.src.html | 3567 | <p>Lorem ipsum dolor<br>sit amet. Nam at jus.<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.src.html | 3138 | Lorem ipsum dolor sit amet. Nam at jus. | CODE |
| LOW | css-gcpm-3/2009-06-10.src.html | 3138 | Lorem ipsum dolor sit amet. Nam at jus. | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4151 | Lorem ipsum dolor sit amet. Nam at jus. | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4151 | Lorem ipsum dolor sit amet. Nam at jus. | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4163 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4175 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4188 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4218 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4230 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4243 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4278 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4284 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4297 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4331 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4343 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4356 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4385 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4397 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4404 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4451 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4463 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4470 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4497 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4509 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4522 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4549 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4561 | <p>Lorem ipsum dolor<br> | CODE |
| LOW | css-gcpm-3/2009-06-10.html | 4574 | <p>Lorem ipsum dolor<br> | CODE |
| 51 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | bin/build-index.py | 152 | # ------------------------------------------------------------------------------ | COMMENT |
| MEDIUM⚡ | .github/generate-auto-publish-workflows.py | 9 | # ----------------------------------------------------------------------------- | COMMENT |
| MEDIUM⚡ | .github/generate-auto-publish-workflows.py | 11 | # ----------------------------------------------------------------------------- | COMMENT |
| MEDIUM⚡ | .github/generate-auto-publish-workflows.py | 19 | # ----------------------------------------------------------------------------- | COMMENT |
| MEDIUM⚡ | .github/generate-auto-publish-workflows.py | 21 | # ----------------------------------------------------------------------------- | COMMENT |
| MEDIUM | .github/generate-auto-publish-workflows.py | 58 | # ----------------------------------------------------------------------------- | COMMENT |
| MEDIUM | .github/generate-auto-publish-workflows.py | 60 | # ----------------------------------------------------------------------------- | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | resize-observer-1/examples/iframeResize.js | 1 | // iframeResize.js: ResizeObserver demo of iframe sizing | COMMENT |
| LOW | resize-observer-1/examples/iframe_embed_text.html | 41 | COMMENT | |
| LOW | resize-observer-1/examples/iframe_embed_text.html | 61 | // // document is taller than iframe, resize to scroll height | COMMENT |
| LOW | css-preslev-1/Overview.html | 421 | COMMENT | |
| LOW | css-preslev-1/Overview.src.html | 341 | // When the element is shown, scroll it in from the right | COMMENT |
| LOW | css-color-4/conversions.js | 1 | // Sample code for color conversions | COMMENT |
| LOW | css-color-4/conversions.js | 481 | } | COMMENT |
| LOW | css-color-4/utilities.js | 41 | function P3_to_LCH(RGB) { | COMMENT |
| LOW | css-color-4/utilities.js | 61 | } | COMMENT |
| LOW | css-color-4/utilities.js | 81 | // then convert XYZ to linear-light display-p3 | COMMENT |
| LOW | css-color-4/matrixmaker.html | 1 | <html> | COMMENT |
| LOW | css-color-4/matrixmaker.html | 41 | // const ygreen=0.690 ; | COMMENT |
| LOW | css-color-4/matrixmaker.html | 121 | console.log("XYZ to RGB"); | COMMENT |
| LOW | css-template-1/jquery.tpl_layout1.1.6-bb.js | 521 | function hasNativeSupport() { | COMMENT |
| LOW | web-animations/css-integration.html | 21 | // subtitle : "an excellent document", | COMMENT |
| LOW | web-animations/css-integration.html | 61 | company: "Mozilla Japan", companyURL: "http://mozilla.jp/" } | COMMENT |
| LOW | web-animations/animation-elements.html | 21 | // subtitle : "an excellent document", | COMMENT |
| LOW | web-animations/animation-elements.html | 61 | // This is optional, uncomment if you have authors as well as editors. | COMMENT |
| LOW | web-animations/html-integration.html | 21 | // subtitle : "an excellent document", | COMMENT |
| LOW | web-animations/html-integration.html | 61 | // This is optional, uncomment if you have authors as well as editors. | COMMENT |
| LOW | web-animations/respec/enum example.html | 21 | // if your specification has a subtitle that goes below the main | COMMENT |
| LOW | web-animations/respec/enum example.html | 81 | // multiple working groups. It includes updating the patent section | COMMENT |
| LOW | web-animations/respec/array-like.html | 21 | // if your specification has a subtitle that goes below the main | COMMENT |
| LOW | web-animations/respec/array-like.html | 81 | // multiple working groups. It includes updating the patent section | COMMENT |
| LOW | web-animations/respec/respec.js | 1 | COMMENT | |
| LOW | web-animations/respec/respec.js | 21 | // - better inline dependent CSS | COMMENT |
| LOW | web-animations/respec/respec.js | 1641 | // div.setAttribute("class", "section"); // XXX that kills previous class, may not be a problem | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| CRITICAL | shared/MathJax/MathJax.js | 29 | if(document.getElementById&&document.childNodes&&document.createElement){if(!window.MathJax){window.MathJax={}}if(!MathJ | CODE |
| CRITICAL | css-template-1/jquery.min.js | 2 | !function(e,t){"use strict";"object"==typeof module&&"object"==typeof module.exports?module.exports=e.document?t(e,!0):f | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | css-text-3/text-justify-i18n.html | 544 | the CSSWG recommends <a href="http://www.w3.org/TR/CSS/#future-proofing">following best practices</a> for the implemen | CODE |
| MEDIUM | css-page-4/Overview.html | 697 | the CSSWG recommends <a href="http://www.w3.org/TR/CSS/#future-proofing">following best practices</a> for the im | CODE |
| MEDIUM | compositing-1/Overview.html | 2398 | the CSSWG recommends <a href="http://www.w3.org/TR/CSS/#future-proofing">following best practices</a> for the im | CODE |
| MEDIUM | css-contain-1/annotated-2022-09-06.html | 2637 | the CSSWG recommends <a href="http://www.w3.org/TR/CSS/#future-proofing">following best practices</a> for the im | CODE |
| MEDIUM | css-contain-1/annotated-2019-09-05.html | 1372 | the CSSWG recommends <a href="http://www.w3.org/TR/CSS/#future-proofing">following best practices</a> for the implemen | CODE |
| MEDIUM | css-transforms-1/test/Overview.html | 3194 | the CSSWG recommends <a href="https://www.w3.org/TR/CSS/#future-proofing">following best practices</a> for the i | CODE |
| MEDIUM | compositing-2/Overview.html | 1961 | the CSSWG recommends <a href="http://www.w3.org/TR/CSS/#future-proofing">following best practices</a> for the im | CODE |
| MEDIUM | css-scroll-snap-1/Proposal.html | 1369 | the CSSWG recommends <a href="http://www.w3.org/TR/CSS/#future-proofing">following best practices</a> for the implemen | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| HIGH | bin/build-index.py | 697 | var lastSn = null; | CODE |
| HIGH | bin/build-index.py | 701 | if (sn !== lastSn && gs > 1) { | CODE |
| HIGH | bin/build-index.py | 736 | if (mobileQuery.matches && specs.length > 0) { | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | .github/generate-auto-publish-workflows.py | 75 | # IMPORTANT: Do not edit this file directly! | STRING |
| LOW | .github/workflows/css-image-animation-1.yml | 2 | # IMPORTANT: Do not edit this file directly! | COMMENT |
| LOW | .github/workflows/css-color-4.yml | 2 | # IMPORTANT: Do not edit this file directly! | COMMENT |
| LOW | .github/workflows/css-color-5.yml | 2 | # IMPORTANT: Do not edit this file directly! | COMMENT |
| LOW | .github/workflows/css-color-hdr-1.yml | 2 | # IMPORTANT: Do not edit this file directly! | COMMENT |
| LOW | .github/workflows/css-fonts-4.yml | 2 | # IMPORTANT: Do not edit this file directly! | COMMENT |
| LOW | .github/workflows/css-fonts-5.yml | 2 | # IMPORTANT: Do not edit this file directly! | COMMENT |
| LOW | .github/workflows/css-2027.yml | 2 | # IMPORTANT: Do not edit this file directly! | COMMENT |
| LOW | .github/workflows/css-2026.yml | 2 | # IMPORTANT: Do not edit this file directly! | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| HIGH | bin/build-index.py | 122 | except OSError: | CODE |
| HIGH | bin/build-index.py | 288 | except OSError: | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | compositing-1/Overview.html | 3042 | function scrollToTargetAndHighlight(event) { | CODE |
| LOW | compositing-1/Overview.html | 3042 | function scrollToTargetAndHighlight(event) { | CODE |
| LOW | compositing-1/Overview.html | 3437 | function setupRefHintEventListeners(link, refHint) { | CODE |
| LOW | bin/build-index.py | 56 | def get_date_authored_timestamp_from_git(path): | CODE |
| LOW | resize-observer-1/examples/chat.html | 401 | function initSmoothScrollPositionChat(chat) { | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| HIGH | css-scroll-snap-1/Proposal.html | 680 | <a class="self-link" href="#example-3435d351"></a> In this example, points of interest in a map are centered | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | mediaqueries-3/Overview.html | 393 | <p>Here is a simple example written in HTML:</p> | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | bin/build-index.py | 63 | CODE |