Consider adding a short example immediately after the loadScript function showing how to call it for each library (e.g., loadScript(primaryUrl, fallbackUrl, initializeApp);) so integrators know how to actually use this loader.

[nitpick] Suggest calling hljs.highlightElement (used earlier in this doc) when a specific language is known, as highlightAuto can misidentify languages and may be slower on large blocks.

Critical Logic Error in highlight.js Usage

The code is calling hljs.highlightAuto() inside the marked renderer's code function (line 724), but this creates a chicken-and-egg problem. The marked renderer is executed when marked.parse() is called, which happens before highlight.js has had a chance to process the code blocks. This will result in immediate execution of highlight.js during markdown parsing, potentially before the DOM is ready and certainly before hljs.highlightElement() is called later.

Issues:

1. hljs.highlightAuto() returns an object with a .value property, but it's being used as if it returns a string
2. This approach bypasses the normal highlighting flow and may cause conflicts
3. The code blocks will be highlighted twice - once during markdown parsing and once during DOM processing

Solution:

Remove the hljs.highlightAuto() call here and let the normal highlighting process in hljs.highlightElement() handle syntax highlighting after the DOM is ready.

Hardcoded Chapter Configuration Doesn't Match Actual Content

The application is hardcoded to load 14 specific markdown files (research_draft_part1.md through research_draft_part14.md), but based on the repository structure, these files don't exist. The actual repository contains:

• index.html (this file)
• draft.rs (Rust smart contract)
• README.md (project documentation)
• aeamcp.pdf
• preview.png
• fixed_hljs_documentation.md

Problems:

1. All chapter loading will fail with 404 errors
2. The search functionality won't work as there's no content to index
3. Users will see error messages for missing files

Solution:
Either:

1. Create the expected markdown files by splitting the existing documentation
2. Or modify the chapter configuration to use existing content like README.md and draft.rs
3. Or implement a fallback to load content from the existing static documentation structure

Security Risk: Arbitrary Code Execution via Popup

The executeCode function opens a new window and writes arbitrary content to it using document.write(). This creates several security concerns:

Issues:

1. XSS Risk: If code contains malicious HTML/JavaScript, it will be executed in the new window
2. Popup Blockers: Modern browsers will likely block this popup
3. User Experience: Opening random popups is poor UX and may be flagged as malicious

Solution:

function executeCode(button) {
    const pre = button.closest('pre');
    const code = pre.querySelector('code');
    const command = code.textContent.trim();
    
    // Safely copy to clipboard and show instructions
    navigator.clipboard.writeText(command).then(() => {
        alert(`Command copied to clipboard:\n\n${command}\n\nPlease paste and execute in your terminal.`);
    }).catch(err => {
        // Fallback for unsupported browsers
        alert(`Please copy and execute this command in your terminal:\n\n${command}`);
    });
}

This approach is safer and provides better user experience.

Incorrect PDF Download Path

The download PDF functionality references 'solana_protocol_design_for_agent_and_mcp_server_registries.pdf' but the actual PDF file in the repository is named aeamcp.pdf.

Problem:

• Users will get a 404 error when trying to download the PDF
• The functionality will appear broken

Solution:

Update the path to match the actual file in the repository.

issue (bug_risk): Handle permanent load failures to prevent infinite retry loop

Add a maximum retry limit or an abort flag to stop retries when both sources fail.

suggestion (bug_risk): ASCII diagram detection may misclassify generic code

Consider using an explicit language marker (e.g., ```ascii) or a front-matter flag to identify diagrams, rather than relying on character patterns that may misclassify regular code.

issue: Avoid changing 'active' link when only toggling subchapter list

Move the 'active' class update inside the content loading logic or separate the toggle and content update logic to keep the sidebar state consistent with the displayed chapter.

suggestion: Add ARIA attributes to sidebar toggle for accessibility

Add aria-expanded, aria-controls, and an aria-label to the toggle button to improve screen reader accessibility.

suggestion: Use semantic tags (e.g.

<body>

    <header>
        <button id="sidebarToggle" class="sidebar-toggle">☰</button>
        <!-- Place navigation or branding here if needed -->
    </header>
    <main class="container">

    <!-- External libraries with fallback mechanisms -->
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.8.0/styles/github-gist.min.css">

    <!-- Load libraries in the correct order with fallbacks -->
    <script>
        // Function to load script with fallback
        function loadScript(src, fallbackSrc, callback) {
            var script = document.createElement('script');
            script.src = src;
            script.onload = callback;