<?xml version="1.0" encoding="utf-8" standalone="yes"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml"><url><loc>https://john.onlee.io/en/</loc><lastmod>2026-08-03T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/"/></url><url><loc>https://john.onlee.io/en/brief/</loc><lastmod>2026-08-03T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/"/></url><url><loc>https://john.onlee.io/en/brief/2026-08-03/</loc><lastmod>2026-08-03T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-08-03/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-08-03/"/></url><url><loc>https://john.onlee.io/en/guides/customizing-hugo-papermod/</loc><lastmod>2026-08-02T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/guides/customizing-hugo-papermod/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/guides/customizing-hugo-papermod/"/></url><url><loc>https://john.onlee.io/en/brief/2026-08-02/</loc><lastmod>2026-08-02T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-08-02/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-08-02/"/></url><url><loc>https://john.onlee.io/en/guides/</loc><lastmod>2026-08-02T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/guides/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/guides/"/></url><url><loc>https://john.onlee.io/en/guides/keeping-claude-md-light/</loc><lastmod>2026-08-02T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/guides/keeping-claude-md-light/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/guides/keeping-claude-md-light/"/></url><url><loc>https://john.onlee.io/en/brief/2026-08-01/</loc><lastmod>2026-08-01T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-08-01/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-08-01/"/></url><url><loc>https://john.onlee.io/en/privacy/</loc><lastmod>2026-08-01T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/privacy/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/privacy/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-31/</loc><lastmod>2026-07-31T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-31/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-31/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-30/</loc><lastmod>2026-07-30T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-30/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-30/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-29/</loc><lastmod>2026-07-29T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-29/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-29/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-28/</loc><lastmod>2026-07-28T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-28/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-28/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-27/</loc><lastmod>2026-07-27T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-27/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-27/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-26/</loc><lastmod>2026-07-26T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-26/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-26/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-25/</loc><lastmod>2026-07-25T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-25/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-25/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-24/</loc><lastmod>2026-07-24T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-24/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-24/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-23/</loc><lastmod>2026-07-23T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-23/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-23/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-22/</loc><lastmod>2026-07-22T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-22/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-22/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-21/</loc><lastmod>2026-07-21T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-21/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-21/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-20/</loc><lastmod>2026-07-20T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-20/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-20/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-19/</loc><lastmod>2026-07-19T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-19/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-19/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-18/</loc><lastmod>2026-07-18T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-18/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-18/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-17/</loc><lastmod>2026-07-17T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-17/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-17/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-16/</loc><lastmod>2026-07-16T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-16/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-16/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-15/</loc><lastmod>2026-07-15T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-15/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-15/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-14/</loc><lastmod>2026-07-14T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-14/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-14/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-13/</loc><lastmod>2026-07-13T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-13/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-13/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-11/</loc><lastmod>2026-07-11T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-11/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-11/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-10/</loc><lastmod>2026-07-10T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-10/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-10/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-09/</loc><lastmod>2026-07-09T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-09/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-09/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-08/</loc><lastmod>2026-07-08T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-08/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-08/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-07/</loc><lastmod>2026-07-07T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-07/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-07/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-06/</loc><lastmod>2026-07-06T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-06/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-06/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-05/</loc><lastmod>2026-07-05T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-05/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-05/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-04/</loc><lastmod>2026-07-04T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-04/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-04/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-03/</loc><lastmod>2026-07-03T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-03/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-03/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-02/</loc><lastmod>2026-07-02T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-02/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-02/"/></url><url><loc>https://john.onlee.io/en/brief/2026-07-01/</loc><lastmod>2026-07-01T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-07-01/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-07-01/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-30/</loc><lastmod>2026-06-30T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-30/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-30/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-29/</loc><lastmod>2026-06-29T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-29/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-29/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-28/</loc><lastmod>2026-06-28T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-28/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-28/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-27/</loc><lastmod>2026-06-27T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-27/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-27/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-26/</loc><lastmod>2026-06-26T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-26/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-26/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-25/</loc><lastmod>2026-06-25T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-25/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-25/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-24/</loc><lastmod>2026-06-24T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-24/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-24/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-23/</loc><lastmod>2026-06-23T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-23/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-23/"/></url><url><loc>https://john.onlee.io/en/blog/how-to-make-an-ai-coding-agent-actually-yours/</loc><lastmod>2026-06-23T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/blog/how-to-make-an-ai-coding-agent-actually-yours/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/blog/how-to-make-an-ai-coding-agent-actually-yours/"/></url><url><loc>https://john.onlee.io/en/blog/</loc><lastmod>2026-06-23T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/blog/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/blog/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-22/</loc><lastmod>2026-06-22T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-22/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-22/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-21/</loc><lastmod>2026-06-21T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-21/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-21/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-20/</loc><lastmod>2026-06-20T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-20/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-20/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-19/</loc><lastmod>2026-06-19T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-19/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-19/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-18/</loc><lastmod>2026-06-18T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-18/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-18/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-17/</loc><lastmod>2026-06-17T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-17/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-17/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-16/</loc><lastmod>2026-06-16T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-16/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-16/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-15/</loc><lastmod>2026-06-15T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-15/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-15/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-14/</loc><lastmod>2026-06-14T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-14/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-14/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-13/</loc><lastmod>2026-06-13T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-13/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-13/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-12/</loc><lastmod>2026-06-12T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-12/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-12/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-11/</loc><lastmod>2026-06-11T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-11/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-11/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-09/</loc><lastmod>2026-06-09T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-09/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-09/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-08/</loc><lastmod>2026-06-08T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-08/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-08/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-07/</loc><lastmod>2026-06-07T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-07/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-07/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-06/</loc><lastmod>2026-06-06T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-06/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-06/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-05/</loc><lastmod>2026-06-05T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-05/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-05/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-04/</loc><lastmod>2026-06-04T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-04/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-04/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-03/</loc><lastmod>2026-06-03T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-03/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-03/"/></url><url><loc>https://john.onlee.io/en/survey/coding-agent-customization/</loc><lastmod>2026-06-03T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/survey/coding-agent-customization/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/survey/coding-agent-customization/"/></url><url><loc>https://john.onlee.io/en/survey/</loc><lastmod>2026-06-03T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/survey/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/survey/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-02/</loc><lastmod>2026-06-02T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-02/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-02/"/></url><url><loc>https://john.onlee.io/en/brief/2026-06-01/</loc><lastmod>2026-06-01T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/brief/2026-06-01/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/brief/2026-06-01/"/></url><url><loc>https://john.onlee.io/en/blog/coding-agent-customization-survey/</loc><lastmod>2026-05-31T00:00:00+00:00</lastmod></url><url><loc>https://john.onlee.io/en/blog/behavioral-llm-benchmark/</loc><lastmod>2026-05-26T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/blog/behavioral-llm-benchmark/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/blog/behavioral-llm-benchmark/"/></url><url><loc>https://john.onlee.io/en/blog/token-economics/</loc><lastmod>2026-05-21T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/blog/token-economics/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/blog/token-economics/"/></url><url><loc>https://john.onlee.io/en/blog/claude-opus-economics/</loc><lastmod>2026-05-20T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/blog/claude-opus-economics/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/blog/claude-opus-economics/"/></url><url><loc>https://john.onlee.io/en/blog/does-your-coding-agent-need-memory/</loc><lastmod>2026-05-14T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/blog/does-your-coding-agent-need-memory/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/blog/does-your-coding-agent-need-memory/"/></url><url><loc>https://john.onlee.io/en/blog/context-window-management/</loc><lastmod>2026-05-11T00:00:00+00:00</lastmod><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/blog/context-window-management/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/blog/context-window-management/"/></url><url><loc>https://john.onlee.io/en/about/</loc><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/about/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/about/"/></url><url><loc>https://john.onlee.io/en/categories/</loc><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/categories/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/categories/"/></url><url><loc>https://john.onlee.io/en/tags/</loc><xhtml:link rel="alternate" hreflang="ko" href="https://john.onlee.io/tags/"/><xhtml:link rel="alternate" hreflang="en" href="https://john.onlee.io/en/tags/"/></url></urlset>