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<li><a href="#ed-the-standard-text-editor" id="toc-ed-the-standard-text-editor" class="nav-link active" data-scroll-target="#ed-the-standard-text-editor"><code>ed</code>, the standard text editor</a></li>
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<div class="toc-actions"><ul><li><a href="https://github.com/AnswerDotAI/llms-txt/issues/new" class="toc-action"><i class="bi bi-github"></i>Report an issue</a></li></ul></div><div class="quarto-alternate-formats"><h2>Other Formats</h2><ul><li><a href="ed.md"><i class="bi bi-file-code"></i>Markdown</a></li></ul></div></nav>
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<section id="ed-the-standard-text-editor" class="level1">
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<h1><code>ed</code>, the standard text editor</h1>
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<p>In order to understand how llms.txt can be used with editors and IDEs, let’s look at how <code>ed</code>, the <a href="https://www.gnu.org/fun/jokes/ed-msg.html">standard text editor</a>, could work (assuming it’s updated to use this proposal). In our example we will look at how the user might then tell <code>ed</code> to retrieve the LLM docs from <a href="https://fastht.ml/docs">fastht.ml/docs</a>, and then use the results to write a simple <a href="https://fastht.ml">FastHTML</a> web app.</p>
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<p>Even if you use a non-standard editor or IDE such as vscode, Cursor, vim, or Emacs, your software’s interaction with <code>/llms.txt</code> would look similar to this general approach.</p>
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<div class="code-copy-outer-scaffold"><div class="sourceCode" id="cb1"><pre class="sourceCode sh code-with-copy"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ed</span>
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<span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a><span class="ex">*</span> H</span></code></pre></div><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></div>
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<p>Our user starts <code>ed</code> and enables helpful error messages (just for the purpose of this walkthru - obviously a real <code>ed</code> user doesn’t need “helpful error messages”).</p>
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<div class="code-copy-outer-scaffold"><div class="sourceCode" id="cb2"><pre class="sourceCode sh code-with-copy"><code class="sourceCode bash"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="ex">*</span> L fastht.ml/docs</span>
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<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a><span class="ex">Checking</span> for /llms.txt at fastht.ml/docs...</span>
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<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a><span class="ex">Found</span> /llms.txt. Parsing...</span>
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<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a><span class="ex">Fetching</span> URLs from <span class="st">"Docs"</span> section... Fetching URLs from <span class="st">"Examples"</span> section...</span>
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<span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a><span class="ex">Skipping</span> <span class="st">"Optional"</span> section for brevity.</span>
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<span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a><span class="ex">Creating</span> XML-based context for Claude... Context created and loaded.</span></code></pre></div><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></div>
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<p>The user invokes the hypothetical <code>L</code> (load) command, which in this LLM-enhanced version of <code>ed</code> retrieves and processes the <code>llms.txt</code> file. <code>ed</code> checks for the file (if it didn’t exist, it would fall back to scraping the HTML of the website the old-fashioned way), parses it, fetches the relevant URLs, and creates an XML-based context suitable for Claude (perhaps an <code>ed</code> config file could be used to choose what LLM to use, and would determine how the context is formatted). All of this happens with the characteristic silence of <code>ed</code>, broken only by these reassuring progress messages.</p>
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<div class="code-copy-outer-scaffold"><div class="sourceCode" id="cb3"><pre class="sourceCode sh code-with-copy"><code class="sourceCode bash"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a><span class="ex">*</span> x Create a simple FastHTML app which outputs <span class="st">'Hello, World!'</span>, in a <span class="op"><</span>div<span class="op">></span>.</span>
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<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a><span class="ex">Analyzing</span> context and prompt...</span>
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<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a><span class="ex">Generating</span> FastHTML app...</span>
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<span id="cb3-4"><a href="#cb3-4" aria-hidden="true" tabindex="-1"></a><span class="ex">App</span> written to buffer.</span></code></pre></div><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></div>
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<p>Next, our user invokes the hypothetical <code>x</code> (eXecute AI) command, providing instructions for the LLM to create a simple FastHTML app. In the world of LLM-enhanced <code>ed</code>, this is understood as a request to generate code based on the given prompt and the previously loaded context.</p>
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<div class="code-copy-outer-scaffold"><div class="sourceCode" id="cb4"><pre class="sourceCode sh code-with-copy"><code class="sourceCode bash"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="ex">*</span> n</span>
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<span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a><span class="ex">5</span></span>
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<span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="ex">*</span> p</span>
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<span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a><span class="ex">from</span> fasthtml.common import <span class="pp">*</span></span>
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<span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a><span class="ex">app,rt</span> = fast_app<span class="er">(</span><span class="kw">)</span></span>
|
||
<span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a><span class="ex">@rt</span></span>
|
||
<span id="cb4-7"><a href="#cb4-7" aria-hidden="true" tabindex="-1"></a><span class="ex">def</span> index<span class="er">(</span><span class="kw">)</span><span class="bu">:</span> return div<span class="er">(</span><span class="st">"Hello, World!"</span><span class="kw">)</span></span>
|
||
<span id="cb4-8"><a href="#cb4-8" aria-hidden="true" tabindex="-1"></a><span class="fu">serve()</span></span></code></pre></div><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></div>
|
||
<p>The editor analyzes the loaded context along with the provided prompt, generates the FastHTML app, and writes it to the buffer. The user then views the generated app line count (<code>n</code>) and contents (<code>p</code>), marveling at how much functionality is packed into those 5 lines.</p>
|
||
<div class="code-copy-outer-scaffold"><div class="sourceCode" id="cb5"><pre class="sourceCode sh code-with-copy"><code class="sourceCode bash"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="ex">*w</span> hello_world.py</span>
|
||
<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a><span class="ex">5</span></span>
|
||
<span id="cb5-3"><a href="#cb5-3" aria-hidden="true" tabindex="-1"></a><span class="ex">*q</span></span></code></pre></div><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></div>
|
||
<p>Finally, our user saves the app to a file and quits <code>ed</code>, presumably to run their new FastHTML app and reflect on the unexpected productivity boost provided by their trusty line editor.</p>
|
||
|
||
|
||
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</div> <!-- /content -->
|
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|
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|
||
|
||
|
||
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