Show issue metadata in the preview pane

internal/panels/gitinfo/gitinfo_github.go

@@ -1401,10 +1401,13 @@ func (p *Panel) issueSelectedCmd() tea.Cmd {
 	iss := items[cursor].issue
 	return func() tea.Msg {
 		return panels.IssueSelectedMsg{
-			Number: iss.Number,
-			Title:  iss.Title,
-			Body:   iss.Body,
-			State:  iss.State,
+			Number:   iss.Number,
+			Title:    iss.Title,
+			Body:     iss.Body,
+			State:    iss.State,
+			Author:   iss.Author,
+			Assignee: iss.Assignee,
+			Labels:   append([]string(nil), iss.Labels...),
 		}
 	}
 }

internal/panels/gitinfo/gitinfo_test.go

@@ -1917,6 +1917,9 @@ func TestIssueSelectedCmd_ValidCursor(t *testing.T) {
 	sel, ok := msg.(panels.IssueSelectedMsg)
 	require.True(t, ok)
 	assert.Equal(t, 1, sel.Number)
+	assert.Equal(t, "testuser", sel.Author)
+	assert.Equal(t, "testuser", sel.Assignee)
+	assert.Equal(t, []string{"bug"}, sel.Labels)
 }
 
 func TestPRSelectedCmd_ValidCursor(t *testing.T) {

internal/panels/messages.go

@@ -622,10 +622,13 @@ type GitHubUserMsg struct {
 // IssueSelectedMsg is sent when the user selects an issue in the GitHub Issues tab.
 // Preview pane should render the issue body as markdown.
 type IssueSelectedMsg struct {
-	Title  string
-	Body   string
-	State  string
-	Number int
+	Title    string
+	Body     string
+	State    string
+	Author   string
+	Assignee string
+	Labels   []string
+	Number   int
 }
 
 // IssueDeselectedMsg is sent when the user deselects an issue (via Escape).

internal/panels/preview/preview.go

@@ -289,11 +289,9 @@ func (p *Preview) Update(msg tea.Msg) (panels.Panel, tea.Cmd) {
 		p.clearSelection()
 		p.ghMode = true
 		p.ghPlainText = false
-		p.ghTitle = fmt.Sprintf("#%d %s", msg.Number, ansi.Strip(msg.Title))
-		p.ghContent = msg.Body
-		if p.ghContent == "" {
-			p.ghContent = "*No description provided.*"
-		}
+		safeTitle := ansi.Strip(msg.Title)
+		p.ghTitle = fmt.Sprintf("#%d %s", msg.Number, safeTitle)
+		p.ghContent = renderIssuePreviewContent(msg, safeTitle)
 		p.scrollY = 0
 		p.lines = markdown.RenderStatic(p.ghContent, p.width)
 		return p, nil
@@ -1099,6 +1097,52 @@ func buildMetadataLines(path string, info os.FileInfo) []string {
 	}
 }
 
+func renderIssuePreviewContent(msg panels.IssueSelectedMsg, safeTitle string) string {
+	var b strings.Builder
+	_, _ = fmt.Fprintf(&b, "# Issue #%d\n\n**%s**", msg.Number, safeTitle)
+	if meta := issueMetadataLines(msg); len(meta) > 0 {
+		b.WriteString("\n\n")
+		b.WriteString(strings.Join(meta, "\n"))
+	}
+	body := msg.Body
+	if body == "" {
+		body = "*No description provided.*"
+	}
+	b.WriteString("\n\n---\n\n")
+	b.WriteString(body)
+	return b.String()
+}
+
+func issueMetadataLines(msg panels.IssueSelectedMsg) []string {
+	var lines []string
+	if state := strings.TrimSpace(ansi.Strip(msg.State)); state != "" {
+		lines = append(lines, "State: "+state)
+	}
+	if author := strings.TrimSpace(ansi.Strip(msg.Author)); author != "" {
+		lines = append(lines, "Author: @"+author)
+	}
+	if assignee := strings.TrimSpace(ansi.Strip(msg.Assignee)); assignee != "" {
+		lines = append(lines, "Assignee: @"+assignee)
+	}
+	if labels := cleanIssueLabels(msg.Labels); len(labels) > 0 {
+		lines = append(lines, "Labels: "+strings.Join(labels, ", "))
+	}
+	return lines
+}
+
+func cleanIssueLabels(labels []string) []string {
+	clean := make([]string, 0, len(labels))
+	for _, label := range labels {
+		label = strings.TrimSpace(ansi.Strip(label))
+		if label == "" {
+			continue
+		}
+		label = strings.ReplaceAll(label, "`", "'")
+		clean = append(clean, "`"+label+"`")
+	}
+	return clean
+}
+
 func buildBinaryMetadataLines(path string, info os.FileInfo, mimeType string, data []byte) []string {
 	lines := buildMetadataLines(path, info)
 	if len(data) == 0 {

internal/panels/preview/preview_test.go

@@ -987,14 +987,22 @@ func TestIssueSelectedMsg(t *testing.T) {
 	p.SetSize(80, 30)
 
 	_, cmd := p.Update(panels.IssueSelectedMsg{
-		Number: 42,
-		Title:  "Fix authentication bug",
-		Body:   "The login flow is broken.\n\nSteps to reproduce...",
-		State:  "open",
+		Number:   42,
+		Title:    "Fix authentication bug",
+		Body:     "The login flow is broken.\n\nSteps to reproduce...",
+		State:    "open",
+		Author:   "octocat",
+		Assignee: "hubot",
+		Labels:   []string{"bug", "needs triage"},
 	})
 
 	assert.True(t, p.ghMode)
 	assert.Equal(t, "#42 Fix authentication bug", p.ghTitle)
+	assert.Contains(t, p.ghContent, "# Issue #42")
+	assert.Contains(t, p.ghContent, "State: open")
+	assert.Contains(t, p.ghContent, "Author: @octocat")
+	assert.Contains(t, p.ghContent, "Assignee: @hubot")
+	assert.Contains(t, p.ghContent, "Labels: `bug`, `needs triage`")
 	assert.Contains(t, p.ghContent, "The login flow is broken.")
 	assert.Equal(t, 0, p.scrollY)
 	assert.NotNil(t, p.lines)
@@ -1015,7 +1023,7 @@ func TestIssueSelectedMsg_EmptyBody(t *testing.T) {
 	})
 
 	assert.True(t, p.ghMode)
-	assert.Equal(t, "*No description provided.*", p.ghContent)
+	assert.Contains(t, p.ghContent, "*No description provided.*")
 }
 
 func TestIssueDeselectedMsg(t *testing.T) {
@@ -1669,13 +1677,22 @@ func TestIssueSelectedMsg_ANSIInjection(t *testing.T) {
 	p := New(defaultCfg(), defaultEditorCfg(), nil)
 	p.SetSize(80, 30)
 	msg := panels.IssueSelectedMsg{
-		Number: 42,
-		Title:  "Bug: \x1b[31mRED\x1b[0m injection",
-		Body:   "body text",
+		Number:   42,
+		Title:    "Bug: \x1b[31mRED\x1b[0m injection",
+		Body:     "body text",
+		State:    "\x1b[31mopen\x1b[0m",
+		Author:   "\x1b[31moctocat\x1b[0m",
+		Assignee: "\x1b[31mhubot\x1b[0m",
+		Labels:   []string{"\x1b[31mbug\x1b[0m"},
 	}
 	p.Update(msg)
 	assert.NotContains(t, p.ghTitle, "\x1b", "ANSI in issue title should be stripped")
 	assert.Contains(t, p.ghTitle, "#42 Bug: RED injection")
+	assert.NotContains(t, p.ghContent, "\x1b", "ANSI in issue metadata should be stripped")
+	assert.Contains(t, p.ghContent, "State: open")
+	assert.Contains(t, p.ghContent, "Author: @octocat")
+	assert.Contains(t, p.ghContent, "Assignee: @hubot")
+	assert.Contains(t, p.ghContent, "Labels: `bug`")
 }
 
 func TestPRSelectedMsg_ANSIInjection(t *testing.T) {