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AI Slop Code RIsk Monitor

3b1b/manim

Animation engine for explanatory math videos

15.3 Elevated pattern signal View on GitHub

Maintenance and Governance Review

This report summarizes scanner evidence for 3b1b/manim, a Python project with 94,859 GitHub stars. SynthScan examined 29,937 lines of code across 131 source files, recording 440 pattern matches distributed across 13 syntactic categories. The legacy adjusted pattern signal is 15.3 (Elevated 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.

15.3
Adjusted Signal
15.3
Raw Pattern Score
100%
Time Factor
2026-09-09
Last Push
94.9K
Stars
Python
Language
29.9K
Lines of Code
131
Files
440
Pattern Hits
2026-10-12
Scan Date
0.05
HC Hit Rate

Risk Review · v3

Use each vector to guide manual verification of the underlying findings.

Cognitive Ownership Risk 31.8/100 · MEDIUM

Can maintainers explain intent, assumptions, and trade-offs? 208 finding(s).

Hallucinated Dependency & Supply Chain Risk 25.5/100 · MEDIUM

Are imports declared and package/API names verified? 203 finding(s).

Agent Over-Engineering Ratio 32.1/100 · MEDIUM

Are wrappers, guards, and repeated structures necessary? 203 finding(s).

PR Review Velocity Impact 55.8/100 · HIGH

Which changes need focused human review? 440 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 7MEDIUM 7LOW 426

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 440 distinct pattern matches across 13 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.

Unused Imports203 hits · 176 pts
SeverityFileLineSnippetContext
LOWexample_scenes.py1CODE
LOWmanimlib/config.py1CODE
LOWmanimlib/window.py1CODE
LOWmanimlib/event_keys.py14CODE
LOWmanimlib/constants.py1CODE
LOWmanimlib/__init__.py12CODE
LOWmanimlib/__init__.py19CODE
LOWmanimlib/__init__.py21CODE
LOWmanimlib/__init__.py23CODE
LOWmanimlib/__init__.py24CODE
LOWmanimlib/__init__.py25CODE
LOWmanimlib/__init__.py26CODE
LOWmanimlib/__init__.py27CODE
LOWmanimlib/__init__.py28CODE
LOWmanimlib/__init__.py29CODE
LOWmanimlib/__init__.py30CODE
LOWmanimlib/__init__.py31CODE
LOWmanimlib/__init__.py32CODE
LOWmanimlib/__init__.py33CODE
LOWmanimlib/__init__.py34CODE
LOWmanimlib/__init__.py35CODE
LOWmanimlib/__init__.py37CODE
LOWmanimlib/__init__.py39CODE
LOWmanimlib/__init__.py40CODE
LOWmanimlib/__init__.py41CODE
LOWmanimlib/__init__.py42CODE
LOWmanimlib/__init__.py43CODE
LOWmanimlib/__init__.py44CODE
LOWmanimlib/__init__.py45CODE
LOWmanimlib/__init__.py46CODE
LOWmanimlib/__init__.py47CODE
LOWmanimlib/__init__.py48CODE
LOWmanimlib/__init__.py49CODE
LOWmanimlib/__init__.py50CODE
LOWmanimlib/__init__.py51CODE
LOWmanimlib/__init__.py52CODE
LOWmanimlib/__init__.py53CODE
LOWmanimlib/__init__.py54CODE
LOWmanimlib/__init__.py55CODE
LOWmanimlib/__init__.py56CODE
LOWmanimlib/__init__.py57CODE
LOWmanimlib/__init__.py58CODE
LOWmanimlib/__init__.py59CODE
LOWmanimlib/__init__.py60CODE
LOWmanimlib/__init__.py61CODE
LOWmanimlib/__init__.py62CODE
LOWmanimlib/__init__.py63CODE
LOWmanimlib/__init__.py64CODE
LOWmanimlib/__init__.py65CODE
LOWmanimlib/__init__.py66CODE
LOWmanimlib/__init__.py67CODE
LOWmanimlib/__init__.py68CODE
LOWmanimlib/__init__.py69CODE
LOWmanimlib/__init__.py71CODE
LOWmanimlib/__init__.py72CODE
LOWmanimlib/__init__.py74CODE
LOWmanimlib/__init__.py75CODE
LOWmanimlib/__init__.py77CODE
LOWmanimlib/__init__.py78CODE
LOWmanimlib/__init__.py79CODE
143 more matches not shown…
Hyper-Verbose Identifiers140 hits · 146 pts
SeverityFileLineSnippetContext
LOWmanimlib/config.py268def update_file_writer_config(config: Dict, args: Namespace):CODE
LOWmanimlib/window.py293 def pixel_coords_to_space_coords(CODE
LOWmanimlib/extract_scene.py146def insert_embed_line_to_module(module: Module, run_config: Dict) -> None:CODE
LOWmanimlib/module_loader.py53 def _exec_module_and_track_imports(spec, module: Module) -> set[str]:CODE
LOWmanimlib/camera/camera_frame.py107 def get_inverse_camera_rotation_matrix(self):CODE
LOWmanimlib/camera/camera_frame.py255 def get_implied_camera_location(self) -> np.ndarray:CODE
LOWmanimlib/animation/transform_matching_parts.py101 def find_pairs_with_matching_shapes(CODE
LOWmanimlib/animation/animation.py130 def update_reference_mobjects(self, dt: float, frame_rate: float | None = None) -> None:CODE
LOWmanimlib/animation/transform.py75 def check_target_mobject_validity(self) -> None:CODE
LOW⚡manimlib/animation/composition.py85 def update_reference_mobjects(self, dt: float, frame_rate: float | None = None) -> None:CODE
LOW⚡manimlib/animation/composition.py89 def build_animations_with_timings(self, lag_ratio: float) -> None:CODE
LOWmanimlib/animation/composition.py140 def update_reference_mobjects(self, dt: float, frame_rate: float | None = None) -> None:CODE
LOWmanimlib/utils/rate_functions.py48def there_and_back_with_pause(t: float, pause_ratio: float = 1. / 3) -> float:CODE
LOWmanimlib/utils/bezier.py75def partial_quadratic_bezier_points(CODE
LOWmanimlib/utils/bezier.py117def set_array_by_interpolation(CODE
LOWmanimlib/utils/bezier.py174def quadratic_bezier_points_for_arc(angle: float, n_components: int = 8):CODE
LOWmanimlib/utils/bezier.py184def approx_smooth_quadratic_bezier_handles(CODE
LOWmanimlib/utils/bezier.py257def get_smooth_cubic_bezier_handle_points(CODE
LOWmanimlib/utils/bezier.py343def get_quadratic_approximation_of_cubic(CODE
LOWmanimlib/utils/bezier.py415def get_smooth_quadratic_bezier_path_through(CODE
LOWmanimlib/utils/structured_array.py190 def turn_off_interpolation_skip(self) -> None:CODE
LOWmanimlib/utils/space_ops.py93def quaternion_from_angle_axis(CODE
LOWmanimlib/utils/space_ops.py100def angle_axis_from_quaternion(quat: Vect4) -> Tuple[float, Vect3]:CODE
LOWmanimlib/utils/space_ops.py136def rotation_matrix_transpose_from_quaternion(quat: Vect4) -> Matrix3x3:CODE
LOWmanimlib/utils/space_ops.py140def rotation_matrix_from_quaternion(quat: Vect4) -> Matrix3x3:CODE
LOWmanimlib/utils/space_ops.py151def rotation_matrix_transpose(angle: float, axis: Vect3) -> Matrix3x3:CODE
LOWmanimlib/utils/space_ops.py360def get_closest_point_on_line(a: VectN, b: VectN, p: VectN) -> VectN:CODE
LOWmanimlib/utils/images.py17def get_full_raster_image_path(image_file_name: str) -> str:CODE
LOWmanimlib/utils/images.py33def get_full_vector_image_path(image_file_name: str) -> str:CODE
LOWmanimlib/utils/images.py41def get_full_three_d_model_path(model_file_name: str) -> str:CODE
LOWmanimlib/utils/family_ops.py11def extract_mobject_family_members(CODE
LOWmanimlib/utils/iterables.py129def resize_with_interpolation(nparray: np.ndarray, length: int) -> np.ndarray:CODE
LOWmanimlib/scene/scene_file_writer.py99 def init_partial_movie_directory(self):CODE
LOWmanimlib/scene/scene_file_writer.py126 def get_next_partial_movie_path(self) -> str:CODE
LOWmanimlib/scene/scene_file_writer.py283 def set_progress_display_description(self, file: str = "", sub_desc: str = "") -> None:CODE
LOWmanimlib/scene/scene.py303 def get_mobject_family_members(self) -> list[Mobject]:CODE
LOWmanimlib/scene/scene.py481 def get_animation_time_progression(CODE
LOWmanimlib/scene/scene.py493 def get_wait_time_progression(CODE
LOWmanimlib/scene/scene.py547 def progress_through_animations(self, animations: Iterable[Animation]) -> None:CODE
LOWmanimlib/scene/scene.py638 def revert_to_original_skipping_status(self):CODE
LOWmanimlib/scene/interactive_scene.py139 def update_selection_rectangle(self, rect: Rectangle):CODE
LOWmanimlib/scene/interactive_scene.py155 def update_selection_highlight(self, highlight: Mobject):CODE
LOWmanimlib/scene/interactive_scene.py257 def regenerate_selection_search_set(self):CODE
LOWmanimlib/scene/interactive_scene.py585 def handle_sweeping_selection(self, point: Vect3):CODE
LOWmanimlib/scene/scene_embed.py40 def get_ipython_shell_for_embedded_scene(self) -> InteractiveShellEmbed:CODE
LOWmanimlib/scene/scene_embed.py102 def ensure_frame_update_post_cell(self):CODE
LOWmanimlib/mobject/matrix.py157 def add_background_to_entries(self) -> Self:CODE
LOWmanimlib/mobject/matrix.py170 def swap_entries_for_ellipses(CODE
LOWmanimlib/mobject/vector_field.py34def get_vectorized_rgb_gradient_function(CODE
LOWmanimlib/mobject/vector_field.py57def get_rgb_gradient_function(CODE
LOWmanimlib/mobject/vector_field.py89def move_submobjects_along_vector_field(CODE
LOWmanimlib/mobject/vector_field.py103def move_points_along_vector_field(CODE
LOWmanimlib/mobject/vector_field.py230 def init_base_stroke_width_array(self, n_sample_points):CODE
LOWmanimlib/mobject/boolean_ops.py12def _convert_vmobject_to_skia_path(vmobject: VMobject) -> pathops.Path:CODE
LOWmanimlib/mobject/boolean_ops.py26def _convert_skia_path_to_vmobject(CODE
LOW⚡manimlib/mobject/numbers.py81 def set_submobjects_from_number(self, number: float | complex) -> None:CODE
LOWmanimlib/mobject/numbers.py220 def _handle_scale_side_effects(self, scale_factor: float) -> Self:CODE
LOWmanimlib/mobject/interactive.py521 def move_panel_and_controls_to_panel_opener(self) -> None:CODE
LOWmanimlib/mobject/interactive.py559 def panel_opener_on_mouse_drag(self, mob, event_data: dict[str, np.ndarray]) -> bool:CODE
LOWmanimlib/mobject/geometry.py116 def reset_endpoints_based_on_tip(self, tip: ArrowTip, at_start: bool) -> Self:CODE
80 more matches not shown…
AI Structural Patterns34 hits · 32 pts
SeverityFileLineSnippetContext
LOWmanimlib/camera/camera.py109CODE
LOWmanimlib/animation/animation.py24CODE
LOWmanimlib/animation/specialized.py17CODE
LOWmanimlib/utils/color.py163CODE
LOWmanimlib/scene/scene_file_writer.py29CODE
LOWmanimlib/scene/scene.py64CODE
LOWmanimlib/mobject/matrix.py25CODE
LOWmanimlib/mobject/vector_field.py52CODE
LOWmanimlib/mobject/vector_field.py142CODE
LOWmanimlib/mobject/vector_field.py337CODE
LOWmanimlib/mobject/numbers.py35CODE
LOWmanimlib/mobject/fractals.py211CODE
LOWmanimlib/mobject/interactive.py384CODE
LOWmanimlib/mobject/geometry.py539CODE
LOWmanimlib/mobject/geometry.py1076CODE
LOWmanimlib/mobject/number_line.py28CODE
LOWmanimlib/mobject/number_line.py247CODE
LOWmanimlib/mobject/probability.py197CODE
LOWmanimlib/mobject/coordinate_systems.py363CODE
LOWmanimlib/mobject/coordinate_systems.py446CODE
LOWmanimlib/mobject/mobject.py98CODE
LOWmanimlib/mobject/mobject.py519CODE
LOWmanimlib/mobject/svg/drawings.py189CODE
LOWmanimlib/mobject/svg/drawings.py358CODE
LOWmanimlib/mobject/svg/drawings.py594CODE
LOWmanimlib/mobject/svg/drawings.py688CODE
LOWmanimlib/mobject/svg/svg_mobject.py62CODE
LOWmanimlib/mobject/svg/string_mobject.py46CODE
LOWmanimlib/mobject/svg/text_mobject.py136CODE
LOWmanimlib/mobject/svg/old_tex_mobject.py23CODE
LOWmanimlib/mobject/svg/tex_mobject.py38CODE
LOWmanimlib/mobject/types/vectorized_mobject.py94CODE
LOWmanimlib/mobject/types/vectorized_mobject.py364CODE
LOWmanimlib/mobject/types/surface.py60CODE
Empty Error Handlers6 hits · 30 pts
SeverityFileLineSnippetContext
HIGHmanimlib/__main__.py41except KillEmbedded:CODE
HIGHmanimlib/event_handler/event_dispatcher.py32except:CODE
HIGHmanimlib/event_handler/event_listner.py29except:CODE
HIGHmanimlib/scene/scene.py159except EndScene:CODE
HIGHmanimlib/scene/interactive_scene.py173except ValueError:CODE
HIGHmanimlib/scene/interactive_scene.py382except ValueError:CODE
Modern Structural Boilerplate21 hits · 22 pts
SeverityFileLineSnippetContext
LOWmanimlib/logger.py5__all__ = ["log"]CODE
LOWmanimlib/renderer/__init__.py4__all__ = ["Gpu", "Renderer"]CODE
LOWmanimlib/renderer/texture.py83 def set_layers(self, layers: np.ndarray) -> None:CODE
LOWmanimlib/animation/creation.py206 def update_submobject_list(self, index: int) -> None:CODE
LOWmanimlib/animation/creation.py219 def update_submobject_list(self, index: int) -> None:CODE
LOWmanimlib/animation/animation.py130 def update_reference_mobjects(self, dt: float, frame_rate: float | None = None) -> None:CODE
LOWmanimlib/animation/transform.py87 def update_config(self, **kwargs) -> None:CODE
LOW⚡manimlib/animation/composition.py85 def update_reference_mobjects(self, dt: float, frame_rate: float | None = None) -> None:CODE
LOWmanimlib/animation/composition.py140 def update_reference_mobjects(self, dt: float, frame_rate: float | None = None) -> None:CODE
LOWmanimlib/utils/structured_array.py82 def set_array(self, array: np.ndarray) -> None:CODE
LOWmanimlib/scene/scene_file_writer.py283 def set_progress_display_description(self, file: str = "", sub_desc: str = "") -> None:CODE
LOWmanimlib/scene/scene.py236 def update_frame(self, dt: float = 0, force_draw: bool = False) -> None:CODE
LOWmanimlib/scene/scene.py267 def update_mobjects(self, dt: float) -> None:CODE
LOWmanimlib/scene/scene.py435 def update_skipping_status(self) -> None:CODE
LOWmanimlib/scene/scene.py875 def set_background_color(self, background_color, background_opacity=1) -> None:CODE
LOW⚡manimlib/mobject/numbers.py81 def set_submobjects_from_number(self, number: float | complex) -> None:CODE
LOWmanimlib/mobject/interactive.py125 def set_value_anim(self, value: bool) -> None:CODE
LOWmanimlib/mobject/interactive.py177 def set_value_anim(self, value: bool) -> None:CODE
LOWmanimlib/mobject/interactive.py258 def set_value_anim(self, value: float) -> None:CODE
LOWmanimlib/mobject/interactive.py420 def set_value_anim(self, value: str) -> None:CODE
LOWmanimlib/mobject/interactive.py423 def update_text(self, value: str) -> None:CODE
Deep Nesting19 hits · 18 pts
SeverityFileLineSnippetContext
LOWmanimlib/module_loader.py139CODE
LOWmanimlib/event_handler/event_dispatcher.py37CODE
LOWmanimlib/scene/scene_file_writer.py363CODE
LOWmanimlib/scene/scene.py826CODE
LOWmanimlib/scene/scene.py934CODE
LOWmanimlib/scene/interactive_scene.py407CODE
LOWmanimlib/scene/interactive_scene.py481CODE
LOWmanimlib/scene/interactive_scene.py554CODE
LOWmanimlib/mobject/boolean_ops.py26CODE
LOWmanimlib/mobject/interactive.py446CODE
LOWmanimlib/mobject/coordinate_systems.py363CODE
LOWmanimlib/mobject/mobject.py1353CODE
LOWmanimlib/mobject/svg/svg_mobject.py227CODE
LOWmanimlib/mobject/svg/text_mobject.py319CODE
LOWmanimlib/mobject/svg/old_tex_mobject.py153CODE
LOWmanimlib/mobject/svg/tex_mobject.py92CODE
LOWmanimlib/mobject/types/vectorized_mobject.py326CODE
LOWmanimlib/mobject/types/vectorized_mobject.py859CODE
LOWtests/render_compare.py208CODE
Self-Referential Comments5 hits · 16 pts
SeverityFileLineSnippetContext
MEDIUMmanimlib/__main__.py24 # Create a new dict to be able to upate withoutCOMMENT
MEDIUMmanimlib/__main__.py30 # Create a reusable windowCOMMENT
MEDIUMmanimlib/animation/indication.py235 # Create a gaussian such that 3 sigmas out on either sideCOMMENT
MEDIUMmanimlib/utils/tex_file_writing.py103 temp_dir.mkdir(exist_ok=True) # Create the directory if it does not already existCODE
MEDIUM⚡manimlib/mobject/numbers.py82 # Create the submobject listCOMMENT
Redundant / Tautological Comments4 hits · 6 pts
SeverityFileLineSnippetContext
LOWmanimlib/default_config.yml12 # Set this to true if you want the path to video filesCOMMENT
LOWmanimlib/utils/file_ops.py31 # Check if this is a file online first, and if so, downloadCOMMENT
LOWmanimlib/utils/file_ops.py44 # Check if what was passed in is already a valid path to a fileCOMMENT
LOWmanimlib/mobject/mobject.py901 # Check if mark as static or not for cameraCOMMENT
Docstring Block Structure1 hit · 5 pts
SeverityFileLineSnippetContext
HIGHmanimlib/utils/tex_file_writing.py63Convert LaTeX string to SVG string. Args: latex: LaTeX source code template: Path to a template LaTSTRING
Slop Phrases2 hits · 4 pts
SeverityFileLineSnippetContext
MEDIUMexample_scenes.py300 # If the argument itself might change, you can use f_always,STRING
MEDIUMmanimlib/mobject/svg/old_tex_mobject.py111 # tex == "\\frac", # you can use \\over as a alternativeCOMMENT
Excessive Try-Catch Wrapping2 hits · 2 pts
SeverityFileLineSnippetContext
LOWmanimlib/config.py260 except Exception as err:CODE
LOWmanimlib/scene/scene_embed.py142 except Exception as e:CODE
Over-Commented Block2 hits · 2 pts
SeverityFileLineSnippetContext
LOWmanimlib/default_config.yml1# This file determines the default configuration for how manim isCOMMENT
LOWmanimlib/default_config.yml41window:COMMENT
AI Slop Vocabulary1 hit · 2 pts
SeverityFileLineSnippetContext
LOWmanimlib/mobject/mobject.py1781 # If empty, simply add n point mobjectsCOMMENT