A self hosted music streaming server
This report presents the forensic synthetic code analysis of blackcandy-org/blackcandy, a Ruby project with 4,408 GitHub stars. SynthScan v2.0 examined 22,058 lines of code across 337 source files, recording 53 pattern matches distributed across 6 syntactic categories. The overall adjusted score of 3.8 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).
This chart maps the temporal evolution of the adjusted synthetic code score across successive scan runs. An upward trajectory indicates ongoing incorporation of AI-generated code or expanding LLM-assisted scaffolding; a stable or declining trajectory may reflect active human refactoring, code removal, or the adoption of stricter authorship policies. The dashed secondary line (right axis) independently tracks total raw pattern hit count, which can diverge from the normalised score when codebase size changes significantly between scans.
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 53 distinct pattern matches across 6 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 | .rubocop.yml | 1 | # Omakase Ruby styling for Rails | COMMENT |
| LOW | app/views/pwa/service-worker.js | 1 | // Add a service worker for processing Web Push notifications: | COMMENT |
| LOW | app/views/pwa/service-worker.js | 21 | // if (clients.openWindow) { | COMMENT |
| LOW | config/recurring.yml | 1 | # production: | COMMENT |
| LOW | config/storage.yml | 21 | # project: your_project | COMMENT |
| LOW | config/puma.rb | 1 | require_relative "../lib/puma/plugin/media_listener" | COMMENT |
| LOW | config/environments/test.rb | 1 | # The test environment is used exclusively to run your application's | COMMENT |
| LOW | config/initializers/content_security_policy.rb | 1 | # Be sure to restart your server when you modify this file. | COMMENT |
| LOW | config/initializers/content_security_policy.rb | 21 | # config.content_security_policy_nonce_directives = %w(script-src style-src) | COMMENT |
| LOW | config/initializers/pagy.rb | 1 | # frozen_string_literal: true | COMMENT |
| LOW | config/initializers/pagy.rb | 21 | # Extras | COMMENT |
| LOW | config/initializers/pagy.rb | 41 | COMMENT | |
| LOW | config/initializers/pagy.rb | 61 | # See https://ddnexus.github.io/pagy/docs/extras/countless | COMMENT |
| LOW | config/initializers/pagy.rb | 81 | COMMENT | |
| LOW | config/initializers/pagy.rb | 101 | # Pagy::DEFAULT[:metadata] = %i[scaffold_url page prev next last] # example | COMMENT |
| LOW | config/initializers/pagy.rb | 121 | # Bulma extra: Add nav, nav_js and combo_nav_js helpers and templates for Bulma pagination | COMMENT |
| LOW | config/initializers/pagy.rb | 141 | # Pagy::DEFAULT[:gearbox_extra] = false # default true | COMMENT |
| LOW | config/initializers/pagy.rb | 161 | # Pagy::DEFAULT[:trim_extra] = false # default true | COMMENT |
| LOW | config/initializers/pagy.rb | 181 | # Rails.application.config.assets.paths << Pagy.root.join('javascripts') | COMMENT |
| LOW | config/initializers/pagy.rb | 201 | # { locale: 'es' }) | COMMENT |
| LOW | config/initializers/inflections.rb | 1 | # Be sure to restart your server when you modify this file. | COMMENT |
| LOW | db/schema.rb | 1 | # This file is auto-generated from the current state of the database. Instead | COMMENT |
| LOW | db/seeds.rb | 1 | # This file should contain all the record creation needed to seed the database with its default values. | COMMENT |
| LOW | db/cache_schema.rb | 1 | # This file is auto-generated from the current state of the database. Instead | COMMENT |
| LOW | db/cable_schema.rb | 1 | # This file is auto-generated from the current state of the database. Instead | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | config/initializers/content_security_policy.rb | 3 | # Define an application-wide content security policy. | COMMENT |
| MEDIUM | db/schema.rb | 1 | # This file is auto-generated from the current state of the database. Instead | COMMENT |
| MEDIUM | db/schema.rb | 5 | # This file is the source Rails uses to define your schema when running `bin/rails | COMMENT |
| MEDIUM | db/cache_schema.rb | 1 | # This file is auto-generated from the current state of the database. Instead | COMMENT |
| MEDIUM | db/cache_schema.rb | 5 | # This file is the source Rails uses to define your schema when running `bin/rails | COMMENT |
| MEDIUM | db/cable_schema.rb | 1 | # This file is auto-generated from the current state of the database. Instead | COMMENT |
| MEDIUM | db/cable_schema.rb | 5 | # This file is the source Rails uses to define your schema when running `bin/rails | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | test/models/media_test.rb | 160 | Setting.update(discogs_token: "fake_token") | CODE |
| LOW | test/models/user_test.rb | 16 | @user = User.create(email: "test@test.com", password: "foobar", theme: "auto") | CODE |
| LOW | test/models/integrations/discogs_test.rb | 7 | @discogs_client = Integrations::Discogs.new("fake_token") | CODE |
| LOW | test/models/integrations/discogs_test.rb | 18 | headers: { "Authorization" => "Discogs token=fake_token" }, | CODE |
| LOW | test/models/integrations/discogs_test.rb | 36 | headers: { "Authorization" => "Discogs token=fake_token" }, | CODE |
| LOW | test/models/integrations/discogs_test.rb | 59 | headers: { "Authorization" => "Discogs token=fake_token" }, | CODE |
| LOW | test/models/integrations/discogs_test.rb | 75 | headers: { "Authorization" => "Discogs token=fake_token" }, | CODE |
| LOW | test/jobs/media_sync_job_test.rb | 68 | Setting.update(discogs_token: "fake_token") | CODE |
| LOW | test/jobs/media_sync_all_job_test.rb | 167 | Setting.update(discogs_token: "fake_token") | CODE |
| LOW | test/controllers/users_controller_test.rb | 28 | post users_url, params: { user: { email: "test@test.com", password: "foobar" } } | CODE |
| LOW | test/controllers/users_controller_test.rb | 73 | post users_url, params: { user: { email: "test@test.com", password: "foobar" } } | CODE |
| LOW | test/controllers/users_controller_test.rb | 180 | post users_url, params: { user: { email: "test@test.com", password: "foobar" } } | CODE |
| LOW | docs/api/sections/authentication.md | 19 | "email": "user@example.com", | CODE |
| LOW | docs/api/sections/authentication.md | 36 | "email": "user@example.com", | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| HIGH | README.md | 91 | docker run -e DB_ADAPTER=postgresql -e DB_URL=postgresql://yourdatabaseurl ghcr.io/blackcandy-org/blackcandy:latest | CODE |
| HIGH | docs/README_EDGE.md | 96 | docker run -e DB_ADAPTER=postgresql -e DB_URL=postgresql://yourdatabaseurl ghcr.io/blackcandy-org/blackcandy:latest | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| CRITICAL | app/javascript/controllers/songs_controller.js | 52 | event.detail.formSubmission.fetchRequest.body.append('current_song_id', currentSongId) | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | app/models/media_file.rb | 81 | def normalize_image_mime_type(mime_type) | CODE |
| LOW | app/models/user.rb | 60 | def add_album_to_recently_played(album) | CODE |
| LOW | test/test_helper.rb | 145 | def with_external_lyrics_file(content, extension: ".lrc") | CODE |
| LOW | lib/black_candy/configurable.rb | 68 | def raise_config_validation_error(message) | CODE |