style: markdown render improvements

.gitignore

@@ -32,3 +32,6 @@ report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
 
 # Finder (MacOS) folder config
 .DS_Store
+
+# test markdown file
+test.md

src/render/index.ts

@@ -81,7 +81,7 @@ export default class Renderer {
 
     const [columns] = pipe.getWindowSize();
     const rendered = await renderMarkdown(str, columns);
-    pipe.write(rendered.replace(/\n\n$/, "\n"));
+    this.write(rendered);
   }
 
   async renderStream(stream: AsyncIterableStream<TextStreamPart<ToolSet>>) {
@@ -157,6 +157,6 @@ export default class Renderer {
     const output = (outputTokens ?? 0) / 1000;
     const time = (stop - start) / 1000;
     const template = `Context: ${context.toFixed(1)}k, Output: ${output.toFixed(1)}k, Time: ${time.toFixed(2)}s\n`;
-    process.stderr.write(chalkStderr.dim(template));
+    this.write(chalkStderr.dim(template), process.stderr);
   }
 }

src/render/markdown.ts

@@ -34,7 +34,7 @@ export async function renderMarkdown(
 
   let currentTable = new CliTable3();
 
-  return Bun.markdown.render(md, {
+  const rendered = Bun.markdown.render(md, {
     heading: (children, { level }) => {
       const colors = [
         chalk.cyan.underline,
@@ -69,7 +69,7 @@ export async function renderMarkdown(
         } catch {}
       }
 
-      return `\`\`\`${chalk.blue(meta?.language)}\n${toRender}\n\`\`\`\n`;
+      return `\`\`\`${chalk.blue(meta?.language ?? "")}\n${toRender}\`\`\`\n`;
     },
     list: (children, { depth }) =>
       `${depth > 0 ? "\n" : ""}${children.trimEnd()}${depth === 0 ? "\n\n" : ""}`,
@@ -77,12 +77,12 @@ export async function renderMarkdown(
       const indent = "  ".repeat(depth);
       let marker = "";
       if (checked !== undefined) {
-        marker = checked ? "[x]" : "[ ]";
+        marker = checked ? "[✓]" : "[ ]";
       } else if (ordered) {
         const n = (start ?? 1) + index;
         marker = `${n}.`;
       } else {
-        marker = "-";
+        marker = "•";
       }
       return `${indent}  ${marker} ${children}\n`;
     },
@@ -111,4 +111,6 @@ export async function renderMarkdown(
     text: (children) => children,
     html: () => "",
   });
+
+  return rendered.replace(/\n\n$/, "\n");
 }