diff --git a/node_version/cli.ts b/node_version/cli.ts
index 945ebfa..dd1297e 100644
--- a/node_version/cli.ts
+++ b/node_version/cli.ts
@@ -8,7 +8,7 @@ import { fileURLToPath } from "node:url";
 import { Command } from "commander";
 
 import { fetchRepo, fetchReadme } from "./github.js";
-import { buildPrompt, buildSimplePrompt } from "./prompt.js";
+import { buildPrompt, buildQuickPrompt, buildSimplePrompt } from "./prompt.js";
 import { generateExplanation } from "./generate.js";
 import { writeOutput } from "./writer.js";
 import { readRepoSignalFiles } from "./repo_reader.js";
@@ -243,14 +243,80 @@ Examples:
     readme = null;
   }
 
-  let readResult: any = null;
-  if (!options.quick) {
+  // QUICK MODE
+  if (options.quick) {
+    const prompt = buildQuickPrompt(
+      repoData.full_name,
+      repoData.description,
+      readme
+    );
+
+    console.log("Generating explanation...");
+
+    let output: string;
+
+    try {
+      output = await generateExplanation(prompt);
+    } catch (e: any) {
+      console.error("Failed to generate explanation.");
+      console.error(`error: ${e?.message || e}`);
+      console.error("\nfix:");
+      console.error("- Ensure GEMINI_API_KEY is set");
+      console.error("- Or run: explainthisrepo --doctor");
+      process.exit(1);
+    }
+
+    console.log("Quick summary 🎉");
+    console.log(output.trim());
+    return;
+  }
+
+  // SIMPLE MODE
+  if (options.simple) {
+    let readResult: any = null;
+
     try {
       readResult = await readRepoSignalFiles(owner, repo);
     } catch (e: any) {
       console.warn(`Warning: Could not read repo files: ${e?.message || e}`);
       readResult = null;
     }
+
+    const prompt = buildSimplePrompt(
+      repoData.full_name,
+      repoData.description,
+      readme,
+      readResult?.treeText ?? null
+    );
+
+    console.log("Generating explanation...");
+
+    let output: string;
+
+    try {
+      output = await generateExplanation(prompt);
+    } catch (e: any) {
+      console.error("Failed to generate explanation.");
+      console.error(`error: ${e?.message || e}`);
+      console.error("\nfix:");
+      console.error("- Ensure GEMINI_API_KEY is set");
+      console.error("- Or run: explainthisrepo --doctor");
+      process.exit(1);
+    }
+
+    console.log("Simple summary 🎉");
+    console.log(output.trim());
+    return;
+  }
+
+  // NORMAL / DETAILED MODE
+  let readResult: any = null;
+
+  try {
+    readResult = await readRepoSignalFiles(owner, repo);
+  } catch (e: any) {
+    console.warn(`Warning: Could not read repo files: ${e?.message || e}`);
+    readResult = null;
   }
 
   const prompt = buildPrompt(
@@ -258,7 +324,6 @@ Examples:
     repoData.description,
     readme,
     options.detailed || false,
-    options.quick || false,
     readResult?.treeText ?? null,
     readResult?.filesText ?? null
   );
@@ -278,34 +343,6 @@ Examples:
     process.exit(1);
   }
 
-  if (options.quick) {
-    console.log("Quick summary 🎉");
-    console.log(output.trim());
-    return;
-  }
-
-  if (options.simple) {
-    console.log("Summarizing...");
-    const simplePrompt = buildSimplePrompt(output);
-
-    let simpleOutput: string;
-
-    try {
-      simpleOutput = await generateExplanation(simplePrompt);
-    } catch (e: any) {
-      console.error("Failed to generate explanation.");
-      console.error(`error: ${e?.message || e}`);
-      console.error("\nfix:");
-      console.error("- Ensure GEMINI_API_KEY is set");
-      console.error("- Or run: explainthisrepo --doctor");
-      process.exit(1);
-    }
-
-    console.log("Simple summary 🎉");
-    console.log(simpleOutput.trim());
-    return;
-  }
-
   console.log("Writing EXPLAIN.md...");
   writeOutput(output);
 
diff --git a/node_version/prompt.ts b/node_version/prompt.ts
index faf23dc..1a60f7e 100644
--- a/node_version/prompt.ts
+++ b/node_version/prompt.ts
@@ -3,38 +3,9 @@ export function buildPrompt(
   description: string | null,
   readme: string | null,
   detailed: boolean = false,
-  quick: boolean = false,
   treeText: string | null = null,
   filesText: string | null = null
 ): string {
-  // QUICK MODE: one sentence definition only
-  if (quick) {
-    const readmeSnippet = (readme || "").slice(0, 2000);
-
-    return `
-You are a senior software engineer.
-
-Write a ONE-SENTENCE plain-English definition of what this GitHub repository is.
-
-Repository:
-- Name: ${repoName}
-- Description: ${description || "No description provided"}
-
-README snippet:
-${readmeSnippet || "No README provided"}
-
-Rules:
-- Output MUST be exactly 1 sentence.
-- Plain English.
-- No markdown.
-- No quotes.
-- No bullet points.
-- No extra text.
-- Do not add features not stated in the description/README.
-`.trim();
-  }
-
-  // NORMAL / DETAILED MODE
   let prompt = `You are a senior software engineer.
 
 Your task is to explain a GitHub repository clearly and concisely for a human reader.
@@ -46,10 +17,10 @@ Repository:
 README content:
 ${readme || "No README provided"}
 
-Repository structure:
-${treeText || "No tree provided"}
+Repo structure:
+${treeText || "No file tree provided"}
 
-Key files (snippets):
+Key code files:
 ${filesText || "No code files provided"}
 
 Instructions:
@@ -72,7 +43,7 @@ Additional instructions:
 - Mention important files and their roles.
 `;
   }
-  
+
   prompt += `
 
 Output format:
@@ -86,14 +57,59 @@ Output format:
   return prompt.trim();
 }
 
-export function buildSimplePrompt(longExplanation: string): string {
-  return `
-You are a senior software engineer.
+export function buildQuickPrompt(
+  repoName: string,
+  description: string | null,
+  readme: string | null
+): string {
+  const readmeSnippet = (readme || "No README provided").slice(0, 2000);
+
+  const prompt = `You are a senior software engineer.
+
+Write a ONE-SENTENCE plain-English definition of what this GitHub repository is.
 
-Rewrite the long repository explanation below into a SIMPLE version in the exact style specified.
+Repository:
+- Name: ${repoName}
+- Description: ${description || "No description provided"}
 
-Input explanation:
-${longExplanation}
+README snippet:
+${readmeSnippet}
+
+Rules:
+- Output MUST be exactly 1 sentence.
+- Plain English.
+- No markdown.
+- No quotes.
+- No bullet points.
+- No extra text.
+- Do not add features not stated in the description/README.
+`;
+
+  return prompt.trim();
+}
+
+export function buildSimplePrompt(
+  repoName: string,
+  description: string | null,
+  readme: string | null,
+  treeText: string | null = null
+): string {
+  const readmeContent = (readme || "No README provided").slice(0, 4000);
+  const treeContent = (treeText || "No file tree provided").slice(0, 1500);
+
+  const prompt = `You are a senior software engineer.
+
+Summarize this GitHub repository in a concise bullet-point format.
+
+Repository:
+- Name: ${repoName}
+- Description: ${description || "No description provided"}
+
+README content:
+${readmeContent}
+
+Repo structure:
+${treeContent}
 
 Output style rules:
 - Plain English.
@@ -105,13 +121,14 @@ Key points from the repo:
 - Each bullet MUST start with: ⬤
 - Each bullet title should be 1–3 words only (example: "Purpose", "Stack", "Entrypoints", "How it works", "Usage", "Structure").
 - Each bullet body should be 1–2 lines max.
-- If the input contains architecture/pipeline steps, capture them naturally.
-- If the input does NOT contain architecture/pipeline steps, do NOT invent them.
+- Base bullets strictly on the provided README and structure.
+- Do NOT invent features, architecture, or details not present in the input.
 - Optional: end with one extra line starting with:
 Also interesting:
-- Do NOT add features not present in the input.
 - No quotes.
 
 Make it feel like a human developer explaining to another developer in simple terms.
-`.trim();
+`;
+
+  return prompt.trim();
 }
\ No newline at end of file