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This report summarizes scanner evidence for perixtar/2026-Tech-OA-by-FastPrep, a Python project with 5,897 GitHub stars. SynthScan examined 12,691 lines of code across 20 source files, recording 37 pattern matches distributed across 5 syntactic categories. The legacy adjusted pattern signal is 3.7 (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? 33 finding(s).
Are imports declared and package/API names verified? 4 finding(s).
Are wrappers, guards, and repeated structures necessary? 24 finding(s).
Which changes need focused human review? 37 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 37 distinct pattern matches across 5 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 | scripts/question_bank_pages.py | 66 | def strip_generated_navigation(prefix: str) -> str: | CODE |
| LOW | scripts/question_bank_pages.py | 273 | def assert_route_conservation( | CODE |
| LOW | scripts/question_bank_pages.py | 296 | def render_question_bank_pages( | CODE |
| LOW | scripts/test_question_bank_pages.py | 32 | def test_render_and_reload_preserve_global_route_order(self) -> None: | CODE |
| LOW | scripts/test_question_bank_pages.py | 69 | def test_duplicate_route_across_pages_fails_closed(self) -> None: | CODE |
| LOW | scripts/test_question_bank_pages.py | 91 | def test_unmanaged_or_noncontiguous_continuation_pages_fail_closed(self) -> None: | CODE |
| LOW | scripts/test_question_bank_pages.py | 114 | def test_single_row_over_hard_limit_fails_closed(self) -> None: | CODE |
| LOW | scripts/test_sync_practice_formats.py | 84 | def test_missing_catalog_entry_uses_coding_route_fallback(self) -> None: | CODE |
| LOW⚡ | scripts/test_sync_practice_formats.py | 104 | def test_catalog_format_overrides_coding_route_fallback(self) -> None: | CODE |
| LOW⚡ | scripts/test_sync_practice_formats.py | 113 | def test_legacy_practice_format_header_is_renamed(self) -> None: | CODE |
| LOW⚡ | scripts/test_sync_practice_formats.py | 123 | def test_format_links_include_only_formats_in_the_table(self) -> None: | CODE |
| LOW⚡ | scripts/test_sync_practice_formats.py | 132 | def test_format_pages_contain_only_matching_rows(self) -> None: | CODE |
| LOW | scripts/test_sync_practice_formats.py | 148 | def test_format_pages_use_the_same_byte_bounded_pagination(self) -> None: | CODE |
| LOW | scripts/test_sync_practice_formats.py | 189 | def test_managed_catalogs_add_design_and_ai_coding_rows(self) -> None: | CODE |
| LOW | scripts/test_sync_practice_formats.py | 237 | def test_missing_public_attribution_uses_factual_fallbacks(self) -> None: | CODE |
| LOW | scripts/test_sync_practice_formats.py | 262 | def test_missing_sighting_date_preserves_the_first_sync_date(self) -> None: | CODE |
| LOW | scripts/test_sync_practice_formats.py | 291 | def test_sync_compacts_favicons_to_keep_the_readme_renderable(self) -> None: | CODE |
| LOW | scripts/test_sync_practice_formats.py | 305 | def test_sync_omits_protected_numeric_alias_rows(self) -> None: | CODE |
| LOW | scripts/test_sync_practice_formats.py | 339 | def test_managed_rows_use_compact_rendering(self) -> None: | CODE |
| LOW | scripts/test_sync_practice_formats.py | 367 | def test_managed_catalog_companies_are_added_to_company_list(self) -> None: | CODE |
| LOW | scripts/test_sync_practice_formats.py | 399 | def test_company_list_is_case_insensitive_comma_safe_and_idempotent(self) -> None: | CODE |
| LOW | scripts/test_sync_practice_formats.py | 432 | def test_refresh_freshness_accepts_spaced_and_compact_date_cells(self) -> None: | CODE |
| LOW | scripts/sync-practice-formats.py | 455 | def format_labels_in_display_order(counts: Counter) -> list[str]: | CODE |
| LOW | scripts/sync-practice-formats.py | 650 | def existing_format_page_paths() -> list[Path]: | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | README.md | 181 | |**Amazon**|[Design an Agentic Chatbot Domain](https://www.fastprep.io/low-level-design/agentic-chatbot-domain)|Low-leve | CODE |
| MEDIUM | README.md | 409 | |**Perplexity AI**|[Design Durable Long-Running Agentic Query Execution](https://www.fastprep.io/system-design/long-runn | CODE |
| MEDIUM | README.md | 535 | |**Amazon**|[Design Agentic Security Stream Detection](https://www.fastprep.io/system-design/agentic-security-stream-det | CODE |
| MEDIUM | README.md | 749 | |**Walmart**|[Design an Agent-Assisted Search Experience](https://www.fastprep.io/system-design/agentic-search-experienc | CODE |
| MEDIUM | formats/system-design.md | 103 | |**Perplexity AI**|[Design Durable Long-Running Agentic Query Execution](https://www.fastprep.io/system-design/long-runn | CODE |
| MEDIUM | formats/system-design.md | 116 | |**Amazon**|[Design Agentic Security Stream Detection](https://www.fastprep.io/system-design/agentic-security-stream-det | CODE |
| MEDIUM | formats/system-design.md | 139 | |**Walmart**|[Design an Agent-Assisted Search Experience](https://www.fastprep.io/system-design/agentic-search-experienc | CODE |
| MEDIUM | formats/low-level-design.md | 23 | |**Amazon**|[Design an Agentic Chatbot Domain](https://www.fastprep.io/low-level-design/agentic-chatbot-domain)|[|Codin | CODE |
| LOW | formats/coding.md | 52 | |**Mercor**|[Expected Fake-Name Collisions](https://www.fastprep.io/problems/mercor-fake-name-expected-collisions)|[![Pr | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | scripts/question_bank_pages.py | 4 | CODE | |
| LOW | scripts/sync-practice-formats.py | 27 | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | scripts/sync-practice-formats.py | 160 | CODE |