fix

apps/api/internal/aiprompts/description_formula.go

@@ -160,3 +160,76 @@ func parseDescriptionFormula(template any) (DescriptionFormula, bool) {
 		return f, true
 	}
 }
+
+// EffectiveDescriptionFormula returns the stored description_template when it has
+// sections; otherwise derives sections from the category enhance prompt Description
+// role (legacy HTML <H2>{…}</H2><p>{…}</p> overlays). That is how A1 and tenants
+// author HTML structure in /categories/.../prompt — without this, enhance accepts
+// plain prose and never runs the formula quality gate.
+func EffectiveDescriptionFormula(stored any, categoryPrompt string) DescriptionFormula {
+	if f, ok := parseDescriptionFormula(stored); ok && len(f.Sections) > 0 {
+		return f
+	}
+	body := ExtractEnhanceSectionBody(categoryPrompt, SectionDescriptionStart, SectionDescriptionEnd)
+	if body == "" {
+		body = strings.TrimSpace(categoryPrompt)
+	}
+	if body == "" || !reLegacyHTMLBlock.MatchString(body) {
+		if f, ok := parseDescriptionFormula(stored); ok {
+			return f
+		}
+		return DescriptionFormula{}
+	}
+	return DeriveDescriptionFormulaFromLegacyParts(LegacyEnhanceParts{
+		DescriptionRules: body,
+		WasLegacy:        true,
+	})
+}
+
+// EffectiveDescriptionTemplateAny is EffectiveDescriptionFormula as a JSON object
+// for processing.ProductInput.DescriptionTemplate (nil when empty).
+func EffectiveDescriptionTemplateAny(stored any, categoryPrompt string) any {
+	f := EffectiveDescriptionFormula(stored, categoryPrompt)
+	if len(f.Sections) == 0 && strings.TrimSpace(f.MetaTitle) == "" && strings.TrimSpace(f.MetaDescription) == "" {
+		return nil
+	}
+	b, err := json.Marshal(f)
+	if err != nil {
+		return nil
+	}
+	var out map[string]any
+	if err := json.Unmarshal(b, &out); err != nil {
+		return nil
+	}
+	return out
+}
+
+// CategoryTitlePromptRequiresRewrite reports whether the Title role instructs a
+// new retail name (not keep/echo supplier title). Used to reject "Matched" copy-paste.
+func CategoryTitlePromptRequiresRewrite(categoryPrompt string) bool {
+	body := ExtractEnhanceSectionBody(categoryPrompt, SectionTitleStart, SectionTitleEnd)
+	if body == "" {
+		body = strings.TrimSpace(categoryPrompt)
+	}
+	if body == "" {
+		return false
+	}
+	lower := strings.ToLower(body)
+	cues := []string{
+		"napiši novo ime",
+		"napisi novo ime",
+		"novo ime izdelka",
+		"po formuli",
+		"write a new",
+		"new product name",
+		"rename",
+		"title formula",
+		"sentence case",
+	}
+	for _, c := range cues {
+		if strings.Contains(lower, c) {
+			return true
+		}
+	}
+	return false
+}

apps/api/internal/aiprompts/description_formula_test.go

@@ -54,3 +54,53 @@ GPT predloga:
 		t.Fatalf("derived template should be OK: %s", raw)
 	}
 }
+
+func TestEffectiveDescriptionFormula_fromPromptDescriptionSection(t *testing.T) {
+	t.Parallel()
+	prompt := strings.Join([]string{
+		SectionTitleStart,
+		`Napiši novo ime izdelka po formuli: "tip izdelka sentence case", "znamka". Ne uporabljaj vejic.`,
+		SectionTitleEnd,
+		"",
+		SectionDescriptionStart,
+		`<H2>{Napiši Novo ime izdelka in izpostavi en benefit}</H2>`,
+		`<p>{Napiši odstavek, ki je dolg 100 besed, ki NE vsebuje Novo ime izdelka.}</p>`,
+		`<H2>{Izpostavi en benefit, in NE napiši Novo ime izdelka}</H2>`,
+		`<p>{Napiši odstavek, ki je dolg 100 besed in VKLJUČI tudi tip izdelka lowercase}</p>`,
+		`<b>{Tehnične specifikacije}</b><ul><li>{Napiši 3-10 tehničnih specifikacij v alinejah}</li></ul>`,
+		SectionDescriptionEnd,
+	}, "\n")
+	f := EffectiveDescriptionFormula(nil, prompt)
+	if len(f.Sections) < 4 {
+		t.Fatalf("want HTML sections from Description role, got %#v", f.Sections)
+	}
+	if f.Sections[0].Type != "h2" || f.Sections[1].Type != "p" {
+		t.Fatalf("unexpected order: %#v", f.Sections)
+	}
+	last := f.Sections[len(f.Sections)-1]
+	if last.Type != "ul" {
+		t.Fatalf("last should be ul specs, got %#v", last)
+	}
+	anyTpl := EffectiveDescriptionTemplateAny(nil, prompt)
+	if anyTpl == nil {
+		t.Fatal("expected non-nil template any")
+	}
+	if !CategoryTitlePromptRequiresRewrite(prompt) {
+		t.Fatal("Title section should require rewrite")
+	}
+	if CategoryTitlePromptRequiresRewrite("--- Title ---\nKeep supplier name.\n--- End Title ---") {
+		t.Fatal("keep-only Title must not require rewrite")
+	}
+}
+
+func TestExtractEnhanceSectionBody(t *testing.T) {
+	t.Parallel()
+	prompt := SectionTitleStart + "\nHello\n" + SectionTitleEnd + "\n" +
+		SectionDescriptionStart + "\nBody here\n" + SectionDescriptionEnd
+	if got := ExtractEnhanceSectionBody(prompt, SectionTitleStart, SectionTitleEnd); got != "Hello" {
+		t.Fatalf("title body=%q", got)
+	}
+	if got := ExtractEnhanceSectionBody(prompt, SectionDescriptionStart, SectionDescriptionEnd); got != "Body here" {
+		t.Fatalf("desc body=%q", got)
+	}
+}

apps/api/internal/aiprompts/legacy_split.go

@@ -110,6 +110,31 @@ func BuildCategoryEnhanceOverlay(parts LegacyEnhanceParts) string {
 	return strings.TrimSpace(b.String())
 }
 
+// ExtractEnhanceSectionBody returns the text between start/end markers
+// (case-insensitive markers, body preserved). Empty when the start marker is missing.
+func ExtractEnhanceSectionBody(prompt, start, end string) string {
+	raw := strings.ReplaceAll(strings.ReplaceAll(prompt, "\r\n", "\n"), "\r", "\n")
+	lower := strings.ToLower(raw)
+	startL := strings.ToLower(strings.TrimSpace(start))
+	endL := strings.ToLower(strings.TrimSpace(end))
+	if startL == "" {
+		return ""
+	}
+	startIdx := strings.Index(lower, startL)
+	if startIdx < 0 {
+		return ""
+	}
+	bodyStart := startIdx + len(startL)
+	rest := raw[bodyStart:]
+	restLower := lower[bodyStart:]
+	if endL != "" {
+		if endIdx := strings.Index(restLower, endL); endIdx >= 0 {
+			rest = rest[:endIdx]
+		}
+	}
+	return strings.TrimSpace(strings.TrimPrefix(strings.TrimSuffix(rest, "\n"), "\n"))
+}
+
 func cleanLegacyInstruction(s string) string {
 	s = modernizeLegacyPlaceholders(s)
 	s = reDoubledQuotes.ReplaceAllString(s, `"`)

apps/api/internal/processing/formula_prompt.go

@@ -7,6 +7,7 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/descrybe/descrybe-v2/apps/api/internal/aiprompts"
 	"github.com/descrybe/descrybe-v2/apps/api/internal/company"
 )
 
@@ -276,6 +277,26 @@ func AppendTitleFormulaSystemOverride(systemTpl string, titleTemplate any) strin
 	return systemTpl + "\n" + titleFormulaSystemOverride
 }
 
+// titlePromptRewriteOverride covers free-form Title section instructions
+// (categories.prompt --- Title ---) that are not structured title_template.
+const titlePromptRewriteOverride = `When the category Title section asks for a new product name or naming formula, "name" MUST be rewritten — never copy the supplier Name unchanged when type/brand/model/color (or other Title cues) are available. Obey the Title section over any "keep short retail title" guidance.`
+
+// AppendTitlePromptRewriteOverride strengthens the system prompt when the
+// category Title role requires a rewrite. No-op when Title does not ask for one.
+func AppendTitlePromptRewriteOverride(systemTpl, categoryPrompt string) string {
+	if !aiprompts.CategoryTitlePromptRequiresRewrite(categoryPrompt) {
+		return strings.TrimSpace(systemTpl)
+	}
+	systemTpl = strings.TrimSpace(systemTpl)
+	if systemTpl == "" {
+		return titlePromptRewriteOverride
+	}
+	if strings.Contains(systemTpl, `"name" MUST be rewritten`) {
+		return systemTpl
+	}
+	return systemTpl + "\n" + titlePromptRewriteOverride
+}
+
 // categoryEnhanceSystemOverlay is appended when categories.prompt (enhance overlay)
 // is active so free-form category copy drives title, description, AND attributes —
 // not description alone — while Title/Description formulas keep structural precedence.

apps/api/internal/processing/prompt_render.go

@@ -24,18 +24,23 @@ func resolveProductPromptTemplates(in ProductInput) (systemTpl, userTpl string)
 			userTpl = def.UserTemplate
 		}
 	}
+	// Prefer stored description_template; else derive HTML sections from the
+	// category prompt Description role (A1-style <H2>{…}</H2> overlays).
+	descTpl := aiprompts.EffectiveDescriptionTemplateAny(in.DescriptionTemplate, catPrompt)
 	// Category formulas are language-agnostic; inject once into the shared user skeleton.
-	userTpl = AppendFormulaConstraints(userTpl, in.TitleTemplate, in.DescriptionTemplate, in.OmitSEOMeta)
+	userTpl = AppendFormulaConstraints(userTpl, in.TitleTemplate, descTpl, in.OmitSEOMeta)
 	// Category attribute allowlist + title-formula keys guide JSON "attrs" extraction.
 	allowed := enhanceAllowedAttrKeys(in, in.CategoryUniqueID)
 	userTpl = AppendAttributeConstraints(userTpl, allowed, in.TitleTemplate)
 	// Company/built-in system prompts often say "1-2 sentences"; when a category
 	// description formula exists, override that so process matches A1 category defs.
-	systemTpl = AppendDescriptionFormulaSystemOverride(systemTpl, in.DescriptionTemplate)
+	systemTpl = AppendDescriptionFormulaSystemOverride(systemTpl, descTpl)
 	// Same for title_template vs "short retail title" — formulas win for name structure.
 	systemTpl = AppendTitleFormulaSystemOverride(systemTpl, in.TitleTemplate)
+	// Free-form Title section (prompt UI) that asks for a rewrite — not title_template.
+	systemTpl = AppendTitlePromptRewriteOverride(systemTpl, catPrompt)
 	if !in.OmitSEOMeta {
-		systemTpl = AppendMetaFormulaSystemOverride(systemTpl, in.DescriptionTemplate)
+		systemTpl = AppendMetaFormulaSystemOverride(systemTpl, descTpl)
 	}
 	// categories.prompt applies to name, description, and attrs (not description-only).
 	systemTpl = AppendCategoryEnhanceSystemOverlay(systemTpl, catPrompt)

apps/api/internal/processing/prompt_render_test.go

@@ -105,6 +105,39 @@ func TestResolveProductPromptTemplates_categoryWithTitleFormula(t *testing.T) {
 	}
 }
 
+func TestResolveProductPromptTemplates_derivesFormulaFromPromptHTML(t *testing.T) {
+	t.Parallel()
+	prompt := aiprompts.SectionTitleStart + "\n" +
+		`Napiši novo ime izdelka po formuli: "tip izdelka sentence case", "znamka", "model". Ne uporabljaj vejic.` + "\n" +
+		aiprompts.SectionTitleEnd + "\n\n" +
+		aiprompts.SectionDescriptionStart + "\n" +
+		`<H2>{Napiši Novo ime izdelka in izpostavi en benefit}</H2>` +
+		`<p>{Napiši odstavek, ki je dolg 100 besed.}</p>` +
+		`<b>{Tehnične specifikacije}</b><ul><li>{Napiši 3-10 tehničnih specifikacij}</li></ul>` + "\n" +
+		aiprompts.SectionDescriptionEnd
+	sys, user := resolveProductPromptTemplates(ProductInput{
+		EnhanceSystemTemplate: "Retail copywriter.\n- description: 1-2 sentences",
+		CategoryEnhancePrompt: prompt,
+		// Empty structured template — production A1 path often only has prompt HTML.
+		DescriptionTemplate: nil,
+	})
+	if !strings.Contains(user, "Description formula") {
+		t.Fatalf("expected Description formula derived from prompt HTML:\n%s", user)
+	}
+	if !strings.Contains(user, "- h2:") || !strings.Contains(user, "- p:") || !strings.Contains(user, "- ul:") {
+		t.Fatalf("expected h2/p/ul sections in formula:\n%s", user)
+	}
+	if !strings.Contains(sys, "Description formula") {
+		t.Fatalf("missing description system override:\n%s", sys)
+	}
+	if !strings.Contains(sys, `"name" MUST be rewritten`) {
+		t.Fatalf("missing title rewrite system override:\n%s", sys)
+	}
+	if descriptionSatisfiesFormula("plain Slovenian prose without tags", aiprompts.EffectiveDescriptionTemplateAny(nil, prompt)) {
+		t.Fatal("plain prose must fail derived formula gate")
+	}
+}
+
 func TestResolveProductPromptTemplates_fallsBackToCompany(t *testing.T) {
 	t.Parallel()
 	_, user := resolveProductPromptTemplates(ProductInput{

apps/api/internal/processing/steps.go

@@ -8,7 +8,9 @@ import (
 	"sort"
 	"strings"
 	"time"
+	"unicode"
 
+	"github.com/descrybe/descrybe-v2/apps/api/internal/aiprompts"
 	"github.com/descrybe/descrybe-v2/apps/api/internal/company"
 	"github.com/descrybe/descrybe-v2/apps/api/internal/eprel"
 )
@@ -739,6 +741,10 @@ func appendStepLog(gpt map[string]any, name string, raw any) {
 // category description_template (short prose / title echo instead of multi-section HTML).
 const descriptionFormulaRetrySuffix = "\n\nINVALID DESCRIPTION. Your JSON ignored the Description formula. Reply with ONLY one JSON object; \"description\" must be ONE HTML string covering each formula section in order with matching tags (h1/h2/h3/h4, p, ul)."
 
+// titleRewriteRetrySuffix is appended when the Title role requires a new retail
+// name but the model echoed the supplier Name unchanged.
+const titleRewriteRetrySuffix = "\n\nINVALID NAME. Category Title instructions require a NEW product name (formula / rewrite). \"name\" must NOT equal the supplier Name. Reply with ONLY one JSON object; rebuild \"name\" from type + brand + model + color (or the Title formula) in {{language}}."
+
 // descriptionNeedsEnhanceRepair is true when desc is weak/empty/title-echo or
 // fails an active category description_template (A1 multi-section HTML).
 // Heuristic invent/synth is intentionally excluded here — enhanceHashForceReason
@@ -750,6 +756,47 @@ func descriptionNeedsEnhanceRepair(desc string, template any, titles ...string)
 	return !descriptionSatisfiesFormula(desc, template)
 }
 
+// titlesAreEquivalent treats supplier vs enriched names as the same when only
+// case/spacing/punctuation differ — used to detect Title formula copy-paste.
+func titlesAreEquivalent(a, b string) bool {
+	na := normalizeTitleCompare(a)
+	nb := normalizeTitleCompare(b)
+	if na == "" || nb == "" {
+		return false
+	}
+	return na == nb
+}
+
+func normalizeTitleCompare(s string) string {
+	s = strings.TrimSpace(strings.ToLower(s))
+	if s == "" || s == "<nil>" {
+		return ""
+	}
+	var b strings.Builder
+	b.Grow(len(s))
+	prevSpace := false
+	for _, r := range s {
+		switch {
+		case unicode.IsLetter(r) || unicode.IsDigit(r):
+			b.WriteRune(r)
+			prevSpace = false
+		case unicode.IsSpace(r) || r == '-' || r == '_' || r == '/' || r == ',':
+			if !prevSpace && b.Len() > 0 {
+				b.WriteByte(' ')
+				prevSpace = true
+			}
+		}
+	}
+	return strings.TrimSpace(b.String())
+}
+
+func titleNeedsRewriteRetry(in ProductInput, name string) bool {
+	if !aiprompts.CategoryTitlePromptRequiresRewrite(in.CategoryEnhancePrompt) {
+		return false
+	}
+	return titlesAreEquivalent(name, in.Name)
+}
+
 // enhanceHashForceReason returns why a matching prior enhance_input_hash must not
 // skip the LLM (empty = safe to reuse as ai_enhance_unchanged).
 func enhanceHashForceReason(in ProductInput) string {
@@ -762,10 +809,18 @@ func enhanceHashForceReason(in ProductInput) string {
 	if !descriptionSatisfiesFormula(in.PriorProcessedDescription, in.DescriptionTemplate) {
 		return "formula-mismatch"
 	}
+	if titleNeedsRewriteRetry(in, in.PriorProcessedName) {
+		return "title-copy-paste"
+	}
 	return ""
 }
 
 func (e *Engine) enhance(ctx context.Context, in ProductInput, category string, attrs map[string]any) (string, string, int, any, error) {
+	// Prompt Description HTML overlays count as the formula when description_template
+	// is empty — otherwise enhance accepts supplier-like prose and skips formula retry.
+	if effective := aiprompts.EffectiveDescriptionTemplateAny(in.DescriptionTemplate, in.CategoryEnhancePrompt); effective != nil {
+		in.DescriptionTemplate = effective
+	}
 	catUID := strings.TrimSpace(in.CategoryUniqueID)
 	catName := strings.TrimSpace(category)
 	sysTpl, userTpl := resolveProductPromptTemplates(in)
@@ -885,11 +940,19 @@ func (e *Engine) enhance(ctx context.Context, in ProductInput, category string,
 	// Quality-gate on LLM description alone (do not absorb originals yet).
 	desc := preferredProductDescription(name, llmDesc)
 	didFormulaRetry := false
-	// Fast garbage that ignores A1 description_template: one formula-aware retry, then synthesize.
-	if !descriptionSatisfiesFormula(desc, in.DescriptionTemplate) &&
-		FormatDescriptionFormulaConstraint(in.DescriptionTemplate) != "" {
+	needsDescRetry := !descriptionSatisfiesFormula(desc, in.DescriptionTemplate) &&
+		FormatDescriptionFormulaConstraint(in.DescriptionTemplate) != ""
+	needsTitleRetry := titleNeedsRewriteRetry(in, name)
+	// One retry when Description HTML formula and/or Title rewrite were ignored.
+	if needsDescRetry || needsTitleRetry {
 		didFormulaRetry = true
-		retryUser := user + descriptionFormulaRetrySuffix
+		retryUser := user
+		if needsDescRetry {
+			retryUser += descriptionFormulaRetrySuffix
+		}
+		if needsTitleRetry {
+			retryUser += titleRewriteRetrySuffix
+		}
 		retryStarted := time.Now()
 		comp2, obj2, err2 := CompleteJSON(ctx, e.Completer, system, retryUser, CompleteOptions{
 			MaxTokens:       MaxTokensEnhance,
@@ -904,7 +967,12 @@ func (e *Engine) enhance(ctx context.Context, in ProductInput, category string,
 			n2 := SanitizeOutput(fmt.Sprint(obj2["name"]))
 			d2 := SanitizeOutput(fmt.Sprint(obj2["description"]))
 			if llmEnhanceHardRefuseReason(n2, d2) == "" {
-				name = preferredProductTitle(in.GTIN, n2, name, in.Name, in.PriorProcessedName)
+				// Prefer rewritten title over supplier echo when Title role requires it.
+				if needsTitleRetry && n2 != "" && !titlesAreEquivalent(n2, in.Name) {
+					name = preferredProductTitle(in.GTIN, n2)
+				} else {
+					name = preferredProductTitle(in.GTIN, n2, name, in.Name, in.PriorProcessedName)
+				}
 				desc = preferredProductDescription(name, d2)
 				mt2, md2 := metaFieldsFromEnhanceObj(obj2)
 				if mt2 != "" {