diff --git a/integrations/playback/allanime/client.go b/integrations/playback/allanime/client.go
index c4d3f4e..1e366b8 100644
--- a/integrations/playback/allanime/client.go
+++ b/integrations/playback/allanime/client.go
@@ -46,7 +46,7 @@ func (c *AllAnimeProvider) Name() string {
 }
 
 func (c *AllAnimeProvider) GetStreams(ctx context.Context, animeID int, titleCandidates []string, episode string, mode string) (*domain.StreamResult, error) {
-	showID := c.resolveShowIDWithFallback(ctx, animeID, titleCandidates, mode)
+	showID := c.showID(ctx, animeID, titleCandidates, mode)
 	if showID == "" {
 		return nil, fmt.Errorf("allanime: show not found for malID %d", animeID)
 	}
diff --git a/integrations/playback/allanime/client_test.go b/integrations/playback/allanime/client_test.go
index faff683..6881ca8 100644
--- a/integrations/playback/allanime/client_test.go
+++ b/integrations/playback/allanime/client_test.go
@@ -251,7 +251,7 @@ func TestBuildStreamSource(t *testing.T) {
 func TestResolveDirectSourceSkipsEmbeds(t *testing.T) {
 	t.Parallel()
 
-	if _, ok := resolveDirectSource(sourceReference{
+	if _, ok := directSource(sourceReference{
 		URL:  "https://ok.ru/videoembed/123",
 		Name: "ok",
 	}); ok {
diff --git a/integrations/playback/allanime/crypto.go b/integrations/playback/allanime/crypto.go
index dc9bfca..35e225c 100644
--- a/integrations/playback/allanime/crypto.go
+++ b/integrations/playback/allanime/crypto.go
@@ -120,7 +120,7 @@ func decodeSourceURL(encoded string) string {
 }
 
 func responseFromTobeparsed(data map[string]any) (map[string]any, error) {
-	toBeParsed := firstNonEmptyString(
+	toBeParsed := firstString(
 		nestedString(data, "tobeparsed"),
 		nestedString(data, "episode", "tobeparsed"),
 	)
@@ -138,7 +138,7 @@ func responseFromTobeparsed(data map[string]any) (map[string]any, error) {
 		return nil, err
 	}
 
-	sourceURLs := firstNonEmptySlice(
+	sourceURLs := firstSlice(
 		nestedSlice(parsed, "sourceUrls"),
 		nestedSlice(parsed, "episode", "sourceUrls"),
 	)
@@ -166,7 +166,8 @@ func parseGraphQLResponse(respBody []byte, decodeErrPrefix string) (map[string]a
 	return parsed, nil
 }
 
-func firstNonEmptyString(values ...string) string {
+// first non-empty
+func firstString(values ...string) string {
 	for _, value := range values {
 		if value != "" {
 			return value
@@ -176,7 +177,8 @@ func firstNonEmptyString(values ...string) string {
 	return ""
 }
 
-func firstNonEmptySlice(values ...[]any) []any {
+// first non-empty
+func firstSlice(values ...[]any) []any {
 	for _, value := range values {
 		if len(value) > 0 {
 			return value
diff --git a/integrations/playback/allanime/extractor.go b/integrations/playback/allanime/extractor.go
index 4826b0e..efd71bb 100644
--- a/integrations/playback/allanime/extractor.go
+++ b/integrations/playback/allanime/extractor.go
@@ -81,7 +81,7 @@ func (e *providerExtractor) ExtractVideoLinks(ctx context.Context, providerPath
 		return nil, fmt.Errorf("read provider response: %w", err)
 	}
 
-	return e.parseProviderResponse(ctx, string(body)), nil
+	return e.parseResponse(ctx, string(body)), nil
 }
 
 func (e *providerExtractor) ExtractEmbedVideoLinks(ctx context.Context, rawURL string) ([]StreamSource, error) {
@@ -98,11 +98,11 @@ func (e *providerExtractor) ExtractEmbedVideoLinks(ctx context.Context, rawURL s
 		return nil, fmt.Errorf("read embed response: %w", err)
 	}
 
-	return parseExternalEmbedResponse(rawURL, string(body), e.referer), nil
+	return parseEmbed(rawURL, string(body), e.referer), nil
 }
 
-// parseProviderResponse extracts stream sources from provider JSON response.
-func (e *providerExtractor) parseProviderResponse(ctx context.Context, response string) []StreamSource {
+// provider response
+func (e *providerExtractor) parseResponse(ctx context.Context, response string) []StreamSource {
 	var root any
 	if err := json.Unmarshal([]byte(response), &root); err != nil {
 		return []StreamSource{}
@@ -367,12 +367,13 @@ func quality(bandwidth int) string {
 	}
 }
 
-func parseExternalEmbedResponse(rawURL string, body string, fallbackReferer string) []StreamSource {
+// embed page
+func parseEmbed(rawURL string, body string, fallbackReferer string) []StreamSource {
 	switch {
 	case strings.Contains(strings.ToLower(rawURL), "ok.ru/"):
 		return parseOKRUSources(body, fallbackReferer)
 	case strings.Contains(strings.ToLower(rawURL), "mp4upload.com/"):
-		return parseMP4UploadSources(body, fallbackReferer)
+		return parseMP4Upload(body, fallbackReferer)
 	default:
 		return nil
 	}
@@ -386,7 +387,7 @@ func parseOKRUSources(body string, referer string) []StreamSource {
 		return nil
 	}
 
-	playlistURL := decodeEscapedMediaURL(firstNonEmptyString(match[1], match[2]))
+	playlistURL := mediaURL(firstString(match[1], match[2]))
 	if playlistURL == "" {
 		return nil
 	}
@@ -400,27 +401,27 @@ func parseOKRUSources(body string, referer string) []StreamSource {
 	}}
 }
 
-func parseMP4UploadSources(body string, referer string) []StreamSource {
+func parseMP4Upload(body string, referer string) []StreamSource {
 	srcPattern := regexp.MustCompile(`(?m)src:\s*"([^"]+)"`)
 	match := srcPattern.FindStringSubmatch(body)
 	if len(match) < 2 {
 		return nil
 	}
 
-	mediaURL := decodeEscapedMediaURL(match[1])
-	if mediaURL == "" {
+	url := mediaURL(match[1])
+	if url == "" {
 		return nil
 	}
 
 	return []StreamSource{{
-		URL:      mediaURL,
+		URL:      url,
 		Provider: "mp4upload",
-		Type:     sourceType(mediaURL),
+		Type:     sourceType(url),
 		Referer:  referer,
 	}}
 }
 
-func decodeEscapedMediaURL(raw string) string {
+func mediaURL(raw string) string {
 	if unquoted, err := strconv.Unquote(`"` + raw + `"`); err == nil {
 		raw = unquoted
 	}
diff --git a/integrations/playback/allanime/http_test.go b/integrations/playback/allanime/http_test.go
index 7df20c3..8a87732 100644
--- a/integrations/playback/allanime/http_test.go
+++ b/integrations/playback/allanime/http_test.go
@@ -539,7 +539,7 @@ func TestParseProviderResponse(t *testing.T) {
 			referer: allAnimeReferer,
 		}
 
-		sources := extractor.parseProviderResponse(context.Background(), body)
+		sources := extractor.parseResponse(context.Background(), body)
 		if len(sources) == 0 {
 			t.Fatal("expected at least one source")
 		}
@@ -566,7 +566,7 @@ func TestParseProviderResponse(t *testing.T) {
 			referer: allAnimeReferer,
 		}
 
-		sources := extractor.parseProviderResponse(context.Background(), "not json")
+		sources := extractor.parseResponse(context.Background(), "not json")
 		if len(sources) != 0 {
 			t.Errorf("expected empty, got %d sources", len(sources))
 		}
@@ -580,7 +580,7 @@ func TestParseProviderResponse(t *testing.T) {
 			referer: allAnimeReferer,
 		}
 
-		sources := extractor.parseProviderResponse(context.Background(), "{}")
+		sources := extractor.parseResponse(context.Background(), "{}")
 		if len(sources) != 0 {
 			t.Errorf("expected empty, got %d sources", len(sources))
 		}
@@ -594,7 +594,7 @@ func TestParseExternalEmbedResponse(t *testing.T) {
 		t.Parallel()
 
 		body := `{"flashvars":{"metadata":"{\"hlsManifestUrl\":\"https://ok.example.test/playlist.m3u8\"}"}}`
-		sources := parseExternalEmbedResponse("https://ok.ru/video/123", body, allAnimeReferer)
+		sources := parseEmbed("https://ok.ru/video/123", body, allAnimeReferer)
 		if len(sources) != 1 {
 			t.Fatalf("got %d sources, want 1", len(sources))
 		}
@@ -610,7 +610,7 @@ func TestParseExternalEmbedResponse(t *testing.T) {
 		t.Parallel()
 
 		body := `src: "https://mp4upload.example.test/video.mp4"`
-		sources := parseExternalEmbedResponse("https://mp4upload.com/e/abc", body, allAnimeReferer)
+		sources := parseEmbed("https://mp4upload.com/e/abc", body, allAnimeReferer)
 		if len(sources) != 1 {
 			t.Fatalf("got %d sources, want 1", len(sources))
 		}
@@ -625,7 +625,7 @@ func TestParseExternalEmbedResponse(t *testing.T) {
 	t.Run("unknown embed returns empty", func(t *testing.T) {
 		t.Parallel()
 
-		sources := parseExternalEmbedResponse("https://unknown.example.com/video", "<html></html>", allAnimeReferer)
+		sources := parseEmbed("https://unknown.example.com/video", "<html></html>", allAnimeReferer)
 		if len(sources) != 0 {
 			t.Errorf("expected empty, got %d sources", len(sources))
 		}
diff --git a/integrations/playback/allanime/search.go b/integrations/playback/allanime/search.go
index f6ded3b..3b5dec2 100644
--- a/integrations/playback/allanime/search.go
+++ b/integrations/playback/allanime/search.go
@@ -99,7 +99,7 @@ func (c *AllAnimeProvider) Search(ctx context.Context, query string, mode string
 	return out, nil
 }
 
-func (c *AllAnimeProvider) resolveShowIDWithFallback(ctx context.Context, animeID int, titleCandidates []string, mode string) string {
+func (c *AllAnimeProvider) showID(ctx context.Context, animeID int, titleCandidates []string, mode string) string {
 	targetMalIDStr := strconv.Itoa(animeID)
 	fallbackID := ""
 
@@ -131,7 +131,7 @@ func exactMatchShowID(searchResults []searchResult, targetMalID string) string {
 
 func (c *AllAnimeProvider) ResolveEpisodeProviderID(ctx context.Context, animeID int, titleCandidates []string) (string, error) {
 	for _, mode := range []string{"sub", "dub"} {
-		showID, err := c.resolveShowIDStrict(ctx, animeID, titleCandidates, mode)
+		showID, err := c.strictShowID(ctx, animeID, titleCandidates, mode)
 		if err == nil {
 			return showID, nil
 		}
@@ -139,7 +139,7 @@ func (c *AllAnimeProvider) ResolveEpisodeProviderID(ctx context.Context, animeID
 	return "", fmt.Errorf("allanime: no exact mal id match for %d", animeID)
 }
 
-func (c *AllAnimeProvider) resolveShowIDStrict(ctx context.Context, animeID int, titleCandidates []string, mode string) (string, error) {
+func (c *AllAnimeProvider) strictShowID(ctx context.Context, animeID int, titleCandidates []string, mode string) (string, error) {
 	targetMalIDStr := strconv.Itoa(animeID)
 	for _, title := range titleCandidates {
 		searchResults, err := c.Search(ctx, title, mode)
diff --git a/integrations/playback/allanime/sources.go b/integrations/playback/allanime/sources.go
index 0e7cbbe..46b79cd 100644
--- a/integrations/playback/allanime/sources.go
+++ b/integrations/playback/allanime/sources.go
@@ -25,7 +25,7 @@ func (c *AllAnimeProvider) GetEpisodeSources(ctx context.Context, showID string,
 
 	result, err := c.graphqlRequestWithHash(ctx, showID, episode, mode)
 	if err == nil {
-		sources := c.extractSourceURLsFromData(ctx, result)
+		sources := c.sourcesFrom(ctx, result)
 		if len(sources) > 0 {
 			return sources, nil
 		}
@@ -69,7 +69,7 @@ func (c *AllAnimeProvider) GetEpisodeSources(ctx context.Context, showID string,
 	return out, nil
 }
 
-func (c *AllAnimeProvider) extractSourceURLsFromData(ctx context.Context, data map[string]any) []StreamSource {
+func (c *AllAnimeProvider) sourcesFrom(ctx context.Context, data map[string]any) []StreamSource {
 	episodeData, ok := data["episode"].(map[string]any)
 	if !ok {
 		return nil
@@ -91,7 +91,7 @@ func (c *AllAnimeProvider) extractSourceURLsFromData(ctx context.Context, data m
 func (c *AllAnimeProvider) resolveRefs(ctx context.Context, references []sourceReference) []StreamSource {
 	out := make([]StreamSource, 0, len(references))
 	for _, ref := range references {
-		if source, ok := resolveDirectSource(ref); ok {
+		if source, ok := directSource(ref); ok {
 			out = append(out, source)
 			return out
 		}
@@ -106,7 +106,7 @@ func (c *AllAnimeProvider) resolveRefs(ctx context.Context, references []sourceR
 	return out
 }
 
-func resolveDirectSource(ref sourceReference) (StreamSource, bool) {
+func directSource(ref sourceReference) (StreamSource, bool) {
 	target := strings.TrimSpace(ref.URL)
 	if target == "" {
 		return StreamSource{}, false
@@ -240,7 +240,7 @@ func stringMapValue(item map[string]any, key string) (string, bool) {
 }
 
 func (c *AllAnimeProvider) graphqlRequestWithHash(ctx context.Context, showID, episode, mode string) (map[string]any, error) {
-	req, err := newEpisodeHashRequest(ctx, showID, episode, mode)
+	req, err := newHashRequest(ctx, showID, episode, mode)
 	if err != nil {
 		return nil, fmt.Errorf("create GET request: %w", err)
 	}
@@ -289,7 +289,7 @@ func (c *AllAnimeProvider) graphqlRequestWithHash(ctx context.Context, showID, e
 	return nil, errors.New("no usable data in response")
 }
 
-func newEpisodeHashRequest(ctx context.Context, showID, episode, mode string) (*http.Request, error) {
+func newHashRequest(ctx context.Context, showID, episode, mode string) (*http.Request, error) {
 	varsJSON := fmt.Sprintf(`{"showId":"%s","translationType":"%s","episodeString":"%s"}`, showID, strings.ToLower(mode), episode)
 	extJSON := fmt.Sprintf(`{"persistedQuery":{"version":1,"sha256Hash":"%s"}}`, episodeQueryHash)