Agent Skill for generating 2D sprite sheets and map, transparent PNG frames, and animated GIFs from prompts.
This report presents the forensic synthetic code analysis of 0x0funky/agent-sprite-forge, a Python project with 3,329 GitHub stars. SynthScan v2.0 examined 8,031 lines of code across 28 source files, recording 36 pattern matches distributed across 5 syntactic categories. The overall adjusted score of 4.5 places this repository in the Likely human-written band.
The scanner applied 160+ deterministic lexical heuristics, multi-line block detectors, abstract syntax tree depth profilers, and a cross-file Jaccard similarity matrix to construct a statistically normalised synthetic code estimate. All matches are individually weighted by severity coefficient and contextual multiplier before summation, and the resulting headline score is temporally discounted to account for the repository's development history relative to the commercial emergence of large language model coding tooling (November 2022 onward).
Longitudinal tracking requires multiple scan runs. Once this repository is re-scanned after new commits land, this chart will visualise how the synthetic code signal evolves over time — enabling you to detect whether AI authorship is growing, stabilising, or being actively corrected by human engineers.
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.
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.
The scanner identified 36 distinct pattern matches across 5 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.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | tests/test_generate2dmap_terrain.py | 27 | def test_extracts_rows_as_terrain_variants(self) -> None: | CODE |
| LOW | tests/test_generate2dmap_terrain.py | 63 | def test_rejects_incomplete_row_mapping(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 40 | def test_edge_touch_uses_trimmed_frame_dimensions(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 60 | def test_empty_frame_is_reported_as_empty(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 79 | def test_preserve_aligns_equal_size_subjects_to_same_anchor(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 105 | def test_qc_summary_reports_model_scale_and_anchor_drift(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 159 | def test_profile_round_trip_and_processing_contract(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 189 | def test_profile_scale_drift_compares_generation_scale(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 212 | def test_anchor_layout_repeats_identical_scale_and_feet_line(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 249 | def test_bundle_marks_one_shots_and_preserves_default(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 264 | def test_bundle_rejects_cross_action_world_height_drift(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 275 | def test_bundle_rejects_per_action_runtime_rescaling(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 286 | def test_scale_profile_locks_runtime_pixel_size(self) -> None: | CODE |
| LOW | tests/test_generate2dsprite.py | 297 | def test_source_edge_override_is_explicit_and_opt_in(self) -> None: | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | tests/test_generate2dmap_terrain.py | 1 | CODE | |
| LOW | tests/test_generate2dsprite.py | 1 | CODE | |
| LOW | skills/generate2dmap/scripts/compose_layered_preview.py | 4 | CODE | |
| LOW | skills/generate2dmap/scripts/extract_terrain_tiles.py | 4 | CODE | |
| LOW | skills/generate2dmap/scripts/extract_prop_pack.py | 4 | CODE | |
| LOW | skills/generate2dsprite/scripts/generate2dsprite.py | 4 | CODE | |
| LOW | skills/generate2dsprite/scripts/make_layout_guide.py | 4 | CODE | |
| LOW | skills/generate2dsprite/scripts/make_anchor_layout.py | 4 | CODE | |
| LOW | skills/video2dsprite/scripts/video2dsprite.py | 14 | CODE | |
| LOW | skills/video2dsprite/scripts/video2dsprite.py | 24 | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | skills/generate2dmap/scripts/compose_layered_preview.py | 29 | CODE | |
| LOW | skills/generate2dmap/scripts/extract_terrain_tiles.py | 71 | CODE | |
| LOW | skills/generate2dmap/scripts/extract_prop_pack.py | 26 | CODE | |
| LOW | skills/generate2dmap/scripts/extract_prop_pack.py | 77 | CODE | |
| LOW | skills/generate2dmap/scripts/extract_prop_pack.py | 98 | CODE | |
| LOW | skills/generate2dsprite/scripts/generate2dsprite.py | 240 | CODE | |
| LOW | skills/generate2dsprite/scripts/generate2dsprite.py | 389 | CODE | |
| LOW | skills/generate2dsprite/scripts/generate2dsprite.py | 444 | CODE | |
| LOW | skills/generate2dsprite/scripts/generate2dsprite.py | 469 | CODE | |
| LOW | skills/video2dsprite/scripts/video2dsprite.py | 227 | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | skills/generate2dsprite/scripts/generate2dsprite.py | 908 | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | skills/video2dsprite/scripts/video2dsprite.py | 489 | except Exception as exc: # noqa: BLE001 — CLI surface | CODE |