A radically modular HTML/CSS rendering engine
This report summarizes scanner evidence for DioxusLabs/blitz, a Rust project with 4,329 GitHub stars. SynthScan examined 122,615 lines of code across 446 source files, recording 150 pattern matches distributed across 6 syntactic categories. The legacy adjusted pattern signal is 1.3 (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? 136 finding(s).
Are imports declared and package/API names verified? 14 finding(s).
Are wrappers, guards, and repeated structures necessary? 9 finding(s).
Which changes need focused human review? 150 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 150 distinct pattern matches across 6 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 | Cargo.toml | 301 | # anyrender_vello = { path = "../anyrender/crates/anyrender_vello" } | COMMENT |
| LOW | Cargo.toml | 321 | # [patch.crates-io] | COMMENT |
| LOW | tests/stylo_usage.rs | 1 | //! Minimal example of using Stylo | COMMENT |
| LOW | tests/stylo_usage.rs | 21 | // }; | COMMENT |
| LOW | tests/stylo_usage.rs | 41 | // "#; | COMMENT |
| LOW | tests/stylo_usage.rs | 61 | // // // handle_reflow | COMMENT |
| LOW | tests/stylo_usage.rs | 81 | // // QUIRKS_MODE, | COMMENT |
| LOW | tests/stylo_usage.rs | 101 | // // // | COMMENT |
| LOW | tests/stylo_usage.rs | 121 | // // ); | COMMENT |
| LOW | tests/stylo_usage.rs | 141 | // // options: GLOBAL_STYLE_DATA.options.clone(), | COMMENT |
| LOW | tests/blitz-tests/tests/stale_dirty_descendants.rs | 1 | //! Hover invalidation must keep working after a restyle which visits a | COMMENT |
| LOW | tests/blitz-tests/tests/stale_node_mapping.rs | 1 | //! Regression tests for node removal in `dioxus-native-dom`. | COMMENT |
| LOW | tests/blitz-tests/tests/oof_dynamic_cb.rs | 1 | //! Dynamic containing-block changes: when a style change adds or removes a | COMMENT |
| LOW | tests/blitz-tests/tests/render_blocking_stylesheet.rs | 1 | //! Regression test for https://github.com/DioxusLabs/blitz/issues/689 | COMMENT |
| LOW | …litz-tests/tests/interaction_state_canonicalization.rs | 61 | /// A block container with mixed inline/block children: the inline-block span | COMMENT |
| LOW | tests/blitz-tests/tests/style_property_invalidation.rs | 1 | //! Styles must be invalidated when the only change since the last re-render | COMMENT |
| LOW | tests/blitz-tests/tests/interaction_state_teardown.rs | 1 | //! When a node referenced by interaction state is removed, the usual teardown | COMMENT |
| LOW | tests/blitz-tests/tests/incremental_oracle.rs | 1 | //! Equivalence oracle between incremental and non-incremental layout. | COMMENT |
| LOW | tests/blitz-tests/tests/stale_interaction_state.rs | 1 | //! Interaction state (hover/active/focus/mousedown) must never retain NodeIds | COMMENT |
| LOW | tests/blitz-tests/tests/br_trailing_line.rs | 1 | //! A forced line break (`<br>`) at the end of a block's inline content ends | COMMENT |
| LOW | wpt/runner/src/net_provider.rs | 241 | queue: Arc<InternalQueue<T>>, | COMMENT |
| LOW | wpt/runner/src/test_runners/mod.rs | 121 | pub fn run_document_scripts(ctx: &ThreadCtx, document: BaseDocument) -> ScriptDocument { | COMMENT |
| LOW | wpt/runner/src/test_runners/harness_test.rs | 21 | /// function provided by blitz-vibey-script. | COMMENT |
| LOW | examples/gradient.rs | 61 | COMMENT | |
| LOW | examples/transparent/src/main.rs | 1 | // On Windows do NOT show a console window when opening the app | COMMENT |
| LOW | examples/assets/clip-path.html | 41 | #c6 { background: #457b9d; } /* dusty blue */ | COMMENT |
| LOW | packages/blitz-vibey-script/src/lib.rs | 1 | //! JavaScript execution on top of Blitz | COMMENT |
| LOW | packages/blitz-vibey-script/src/state.rs | 61 | /// collections. That is sound because Boa GC handles held outside of the GC | COMMENT |
| LOW | packages/blitz-vibey-script/src/state.rs | 81 | /// The clock driving timer deadlines and `Date` | COMMENT |
| LOW | packages/blitz-vibey-script/src/document.rs | 61 | let mut mutr = doc.mutate(); | COMMENT |
| LOW | packages/blitz-vibey-script/src/document.rs | 101 | /// | COMMENT |
| LOW | packages/blitz-vibey-script/src/document.rs | 241 | COMMENT | |
| LOW | packages/blitz/src/lib.rs | 1 | #![cfg_attr(docsrs, feature(doc_cfg))] | COMMENT |
| LOW | packages/blitz/src/lib.rs | 21 | }; | COMMENT |
| LOW | packages/accesskit_xplat/src/lib.rs | 1 | // Copyright 2022 The AccessKit Authors. All rights reserved. | COMMENT |
| LOW | packages/accesskit_xplat/src/lib.rs | 21 | //! use std::sync::Arc; | COMMENT |
| LOW | packages/accesskit_xplat/src/lib.rs | 41 | //! | COMMENT |
| LOW | packages/accesskit_xplat/src/lib.rs | 61 | //! /// and before it is handled by the application. | COMMENT |
| LOW | packages/accesskit_xplat/src/lib.rs | 81 | //! } | COMMENT |
| LOW | packages/accesskit_xplat/src/lib.rs | 181 | /// before the window is shown for the first time. This means that you must | COMMENT |
| LOW | packages/dioxus-native-dom/src/dioxus_document.rs | 41 | /// ### Example | COMMENT |
| LOW | packages/blitz-dom/src/query_selector.rs | 61 | /// - Ok(Some(node_id)) with the first node ID that matches if one is found | COMMENT |
| LOW | packages/blitz-dom/src/query_selector.rs | 81 | let selector_list = self.try_parse_selector_list(selector)?; | COMMENT |
| LOW | packages/blitz-dom/src/query_selector.rs | 141 | } | COMMENT |
| LOW | packages/blitz-dom/src/stylo.rs | 1301 | // before_change_style: Option<Arc<ComputedValues>>, | COMMENT |
| LOW | packages/blitz-dom/src/stylo.rs | 1441 | /// be flushed to the pseudo-element's node - along with the damage they imply - | COMMENT |
| LOW | packages/blitz-dom/src/stylo.rs | 1541 | &el.background_images, | COMMENT |
| LOW | packages/blitz-dom/src/stylo.rs | 1561 | // let size = mem::size_of::<StyleSharingCandidate<BlitzNode>>(); | COMMENT |
| LOW | packages/blitz-dom/src/net.rs | 41 | /// | COMMENT |
| LOW | packages/blitz-dom/src/resolve.rs | 41 | .first_element_child() | COMMENT |
| LOW | packages/blitz-dom/src/resolve.rs | 121 | // after layout and transforms so that stacking-context roots created by | COMMENT |
| LOW | packages/blitz-dom/src/config.rs | 21 | Parallel, | COMMENT |
| LOW | packages/blitz-dom/src/config.rs | 41 | pub net_provider: Option<Arc<dyn NetProvider>>, | COMMENT |
| LOW | packages/blitz-dom/src/lib.rs | 1 | //! The core DOM abstraction in Blitz | COMMENT |
| LOW | packages/blitz-dom/src/lib.rs | 21 | //! they want. | COMMENT |
| LOW | packages/blitz-dom/src/tree.rs | 21 | COMMENT | |
| LOW | packages/blitz-dom/src/selection.rs | 1 | //! Text selection state and logic for non-input elements. | COMMENT |
| LOW | packages/blitz-dom/src/stylo_to_kurbo.rs | 61 | .transform | COMMENT |
| LOW | packages/blitz-dom/src/document.rs | 281 | id: usize, | COMMENT |
| LOW | packages/blitz-dom/src/document.rs | 321 | /// The Stylo engine | COMMENT |
| 60 more matches not shown… | ||||
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW⚡ | examples/inline.rs | 18 | "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum consequat scelerisque elit sit amet | CODE |
| LOW⚡ | examples/inline.rs | 18 | "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum consequat scelerisque elit sit amet | CODE |
| LOW⚡ | examples/inline.rs | 25 | "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum consequat scelerisque elit sit amet | CODE |
| LOW⚡ | examples/inline.rs | 25 | "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum consequat scelerisque elit sit amet | CODE |
| LOW⚡ | examples/inline.rs | 32 | "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum consequat scelerisque elit sit amet | CODE |
| LOW⚡ | examples/inline.rs | 32 | "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum consequat scelerisque elit sit amet | CODE |
| LOW | examples/assets/float-width.html | 31 | <p>First paragraph: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut | CODE |
| LOW | examples/assets/float-width.html | 31 | <p>First paragraph: Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut | CODE |
| LOW | examples/assets/animated_layout.html | 48 | Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam faucibus tortor orci, nec tempus nisl rhoncus | CODE |
| LOW | examples/assets/animated_layout.html | 48 | Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam faucibus tortor orci, nec tempus nisl rhoncus | CODE |
| LOW | packages/blitz-vibey-script/tests/preact.rs | 116 | .attr(blitz_dom::local_name!("placeholder")) | CODE |
| LOW | packages/blitz-vibey-script/src/dom/element.rs | 102 | "placeholder", | CODE |
| LOW | …es/blitz-vibey-script/src/dom/element/form_controls.rs | 15 | attr_getter("placeholder", this, context) | CODE |
| LOW | …es/blitz-vibey-script/src/dom/element/form_controls.rs | 22 | attr_setter("placeholder", this, args, context) | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | packages/blitz-dom/src/layout/mod.rs | 541 | // Absolutely positioned children take no part in the table grid. Their | COMMENT |
| MEDIUM | packages/blitz-dom/src/layout/table.rs | 44 | /// Absolutely positioned descendants of the table's row groups and rows (and of the | COMMENT |
| MEDIUM | packages/blitz-dom/src/layout/table.rs | 547 | // Absolutely positioned boxes are out-of-flow: they are laid out by their containing | COMMENT |
| LOW | .github/workflows/publish-browser.yml | 194 | # # Todo: we want `cargo install dx` to actually just use a prebuilt binary instead of building it | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | .github/scripts/test_wpt_diff_to_pr.py | 105 | def test_sorted_aligned_and_marked(self): | CODE |
| LOW | .github/scripts/test_wpt_diff_to_pr.py | 117 | def test_subtests_changing_in_both_directions(self): | CODE |
| LOW | .github/scripts/test_wpt_diff_to_pr.py | 129 | def test_headline_counts_each_direction(self): | CODE |
| LOW | .github/scripts/test_wpt_diff_to_pr.py | 134 | def test_headline_counts_subtests(self): | CODE |
| LOW | .github/scripts/test_wpt_diff_to_pr.py | 170 | def test_replaces_existing_section(self): | CODE |
| LOW | .github/scripts/test_wpt_area_changes.py | 27 | def test_areas_use_only_url_path(self): | CODE |
| LOW | .github/scripts/test_wpt_area_changes.py | 38 | def test_variants_remain_distinct_in_area_totals(self): | CODE |
| LOW | .github/scripts/test_wpt_area_changes.py | 50 | def test_counts_changed_areas(self): | CODE |
| LOW | .github/scripts/test_wpt_area_changes.py | 61 | def test_nested_areas_sort_before_sibling_with_same_prefix(self): | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | packages/dioxus-native-dom/src/events.rs | 470 | // TODO: implement these fields with real values | COMMENT |
| LOW | packages/blitz-dom/src/stylo.rs | 390 | // TODO: implement shadow DOM | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | packages/accesskit_xplat/src/lib.rs | 13 | //! ## Example usage | COMMENT |