diff --git a/docs/assets/images/arabica-srpint2-architecture-design.svg b/docs/assets/images/arabica-srpint2-architecture-design.svg
index 990b425..892165a 100644
--- a/docs/assets/images/arabica-srpint2-architecture-design.svg
+++ b/docs/assets/images/arabica-srpint2-architecture-design.svg
@@ -106,21 +106,25 @@ SPDX-License-Identifier: MIT & CC-BY-SA-4.0
       <path d="M 640 300 L 640 178" stroke="var(--c-local-green)" marker-end="url(#arrow-green)" />
 
       <!-- app.ts to Controllers -->
-      <path d="M 600 370 L 600 400 L 410 400 L 410 422" stroke="var(--c-neutral-gray)" marker-end="url(#arrow-gray)" />
+      <path d="M 600 370 L 600 395 L 410 395 L 410 422" stroke="var(--c-neutral-gray)" marker-end="url(#arrow-gray)" />
       <path d="M 640 370 L 640 422" stroke="var(--c-neutral-gray)" marker-end="url(#arrow-gray)" />
-      <path d="M 680 370 L 680 400 L 870 400 L 870 422" stroke="var(--c-neutral-gray)" marker-end="url(#arrow-gray)" />
+      <path d="M 680 370 L 680 395 L 870 395 L 870 422" stroke="var(--c-neutral-gray)" marker-end="url(#arrow-gray)" />
 
       <!-- Controllers to Services -->
       <path d="M 410 490 L 410 532" stroke="var(--c-neutral-gray)" marker-end="url(#arrow-gray)" />
       <path d="M 640 490 L 640 532" stroke="var(--c-neutral-gray)" marker-end="url(#arrow-gray)" />
       <path d="M 870 490 L 870 532" stroke="var(--c-neutral-gray)" marker-end="url(#arrow-gray)" />
 
-      <!-- Services to Schemas/Frameworks -->
-      <path d="M 410 620 L 410 642" stroke="var(--c-neutral-gray)" stroke-dasharray="2 2" marker-end="url(#arrow-gray)" />
-      <path d="M 640 620 L 640 642" stroke="var(--c-neutral-gray)" stroke-dasharray="2 2" marker-end="url(#arrow-gray)" />
-
       <!-- resourceService to Local Vault -->
-      <path d="M 700 460 L 760 460 L 760 720 L 820 720" stroke="var(--c-local-green)" marker-end="url(#arrow-green)" />
+      <path d="M 700 460 L 750 460 L 750 580 L 780 580" stroke="var(--c-neutral-gray)" marker-end="url(#arrow-gray)" />
+
+      <!-- Services to Schemas/Frameworks -->
+      <path d="M 410 620 L 410 652" stroke="var(--c-neutral-gray)" stroke-dasharray="2 2" marker-end="url(#arrow-gray)" />
+      <path d="M 640 620 L 640 652" stroke="var(--c-neutral-gray)" stroke-dasharray="2 2" marker-end="url(#arrow-gray)" />
+
+      <!-- toolsController to resourceService -->
+      <path d="M 870 620 L 870 680" stroke="var(--c-local-green)" marker-end="url(#arrow-green)" />
+
     </g>
 
     <!--
@@ -142,6 +146,7 @@ SPDX-License-Identifier: MIT & CC-BY-SA-4.0
 
       <rect x="585" y="250" width="70" height="20" rx="4" fill="#FFFFFF" stroke="var(--c-local-green)" />
       <text x="620" y="264" text-anchor="middle" class="font-mono" font-size="11" fill="var(--c-local-green)">stdio</text>
+      <text x="820" y="650" text-anchor="middle" class="font-mono" font-size="11" fill="var(--c-neutral-gray)">load/save</text>
     </g>
 
     <!--
@@ -235,16 +240,16 @@ SPDX-License-Identifier: MIT & CC-BY-SA-4.0
 
       <!-- 10. resourceService.ts -->
       <g transform="translate(780, 540)">
-        <rect x="0" y="0" width="180" height="80" rx="6" fill="#FFFFFF" stroke="var(--c-neutral-gray-light)" stroke-width="2" stroke-dasharray="2 2" opacity="0.8"/>
-        <rect x="0" y="0" width="180" height="26" fill="var(--c-neutral-gray-light)" rx="6" />
-        <rect x="0" y="20" width="180" height="6" fill="var(--c-neutral-gray-light)" />
+        <rect x="0" y="0" width="180" height="80" rx="6" fill="#FFFFFF" stroke="var(--c-local-green)" stroke-width="2" stroke-dasharray="2 2" opacity="0.8"/>
+        <rect x="0" y="0" width="180" height="26" fill="var(--c-local-green)" rx="6" />
+        <rect x="0" y="20" width="180" height="6" fill="var(--c-local-green)" />
         <text x="90" y="18" text-anchor="middle" class="font-mono card-title">resourceService.ts</text>
         <text x="90" y="50" text-anchor="middle" class="font-sans text-code" font-size="12">文件系统 I/O 交互</text>
         <text x="90" y="70" text-anchor="middle" class="font-sans card-text" font-size="11">读取本地知识库</text>
       </g>
 
       <!-- 11. models/frameworks -->
-      <g transform="translate(320, 650)">
+      <g transform="translate(320, 660)">
         <rect x="0" y="0" width="180" height="60" rx="6" fill="#F8FAFC" stroke="var(--c-neutral-gray)" stroke-width="1.5" stroke-dasharray="4 2" />
         <path d="M 0 20 L 180 20" stroke="var(--c-neutral-gray)" stroke-width="1.5" stroke-dasharray="4 2" />
         <text x="90" y="14" text-anchor="middle" class="font-mono text-code" font-size="11">models/frameworks/</text>
@@ -253,7 +258,7 @@ SPDX-License-Identifier: MIT & CC-BY-SA-4.0
       </g>
 
       <!-- 12. schemas.ts -->
-      <g transform="translate(595, 650)">
+      <g transform="translate(595, 660)">
         <rect x="0" y="0" width="90" height="60" rx="6" fill="#F8FAFC" stroke="var(--c-neutral-gray)" stroke-width="1.5" />
         <text x="45" y="25" text-anchor="middle" class="font-mono text-code" font-size="12">schemas.ts</text>
         <text x="45" y="45" text-anchor="middle" class="font-sans card-text" font-size="11">Zod 强校验</text>
@@ -281,7 +286,7 @@ SPDX-License-Identifier: MIT & CC-BY-SA-4.0
         <circle cx="0" cy="0" r="10" fill="var(--c-step-red)" />
         <text x="0" y="4.5" text-anchor="middle" class="font-sans step-text">2</text>
       </g>
-      <g transform="translate(600, 200)">
+      <g transform="translate(600, 210)">
         <circle cx="0" cy="0" r="10" fill="var(--c-step-red)" />
         <text x="0" y="4.5" text-anchor="middle" class="font-sans step-text">3</text>
       </g>
@@ -301,14 +306,18 @@ SPDX-License-Identifier: MIT & CC-BY-SA-4.0
         <circle cx="0" cy="0" r="10" fill="var(--c-step-red)" />
         <text x="0" y="4.5" text-anchor="middle" class="font-sans step-text">7</text>
       </g>
-      <g transform="translate(760, 650)">
+      <g transform="translate(640, 210)">
         <circle cx="0" cy="0" r="10" fill="var(--c-step-red)" />
         <text x="0" y="4.5" text-anchor="middle" class="font-sans step-text">8</text>
       </g>
+      <g transform="translate(870, 645)">
+        <circle cx="0" cy="0" r="10" fill="var(--c-step-red)" />
+        <text x="0" y="4.5" text-anchor="middle" class="font-sans step-text">9</text>
+      </g>
 
       <!-- 步骤流程侧边栏 -->
       <g transform="translate(20, 280)">
-        <rect x="0" y="0" width="260" height="210" rx="8" fill="#FEF2F2" stroke="var(--c-step-red)" stroke-width="1.5" />
+        <rect x="0" y="0" width="260" height="240" rx="8" fill="#FEF2F2" stroke="var(--c-step-red)" stroke-width="1.5" />
         <text x="130" y="25" text-anchor="middle" class="font-sans" font-size="14" font-weight="bold" fill="var(--c-step-red)">Sprint 2 执行步骤流</text>
         <line x1="15" y1="35" x2="245" y2="35" stroke="var(--c-step-red)" stroke-dasharray="2 2" />
 
@@ -350,6 +359,11 @@ SPDX-License-Identifier: MIT & CC-BY-SA-4.0
         <g transform="translate(15, 195)">
           <circle cx="6" cy="-4" r="7" fill="var(--c-step-red)" />
           <text x="6" y="0" text-anchor="middle" class="font-sans step-text" font-size="10">8</text>
+          <text x="20" y="0" class="font-sans card-text" fill="#000000">结构化提示词传递给模型</text>
+        </g>
+        <g transform="translate(15, 215)">
+          <circle cx="6" cy="-4" r="7" fill="var(--c-step-red)" />
+          <text x="6" y="0" text-anchor="middle" class="font-sans step-text" font-size="10">9</text>
           <text x="20" y="0" class="font-sans card-text" fill="#000000">查询结果保存到本地知识库</text>
         </g>
       </g>