<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Hacker News: syumei</title><link>https://news.ycombinator.com/user?id=syumei</link><description>Hacker News RSS</description><docs>https://hnrss.org/</docs><generator>hnrss v2.1.1</generator><lastBuildDate>Tue, 21 Jul 2026 16:55:26 +0000</lastBuildDate><atom:link href="https://hnrss.org/user?id=syumei" rel="self" type="application/rss+xml"></atom:link><item><title><![CDATA[Multi-Agent Design Patterns – Part 1: Separating Coder and Tester]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@Koukyosyumei/understanding-multi-agent-design-patterns-part-1-agentcoder-separating-code-implementation-from-0e0d2491bec0">https://medium.com/@Koukyosyumei/understanding-multi-agent-design-patterns-part-1-agentcoder-separating-code-implementation-from-0e0d2491bec0</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48984759">https://news.ycombinator.com/item?id=48984759</a></p>
<p>Points: 3</p>
<p># Comments: 0</p>
]]></description><pubDate>Mon, 20 Jul 2026 20:54:51 +0000</pubDate><link>https://medium.com/@Koukyosyumei/understanding-multi-agent-design-patterns-part-1-agentcoder-separating-code-implementation-from-0e0d2491bec0</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48984759</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48984759</guid></item><item><title><![CDATA[Tile-pack repos, files, and prompts into images for 60–75% fewer Claude tokens]]></title><description><![CDATA[
<p>Article URL: <a href="https://old.reddit.com/r/ClaudeCode/comments/1uz5tpl/tilepack_repos_docs_files_and_prompts_into_images/">https://old.reddit.com/r/ClaudeCode/comments/1uz5tpl/tilepack_repos_docs_files_and_prompts_into_images/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48949741">https://news.ycombinator.com/item?id=48949741</a></p>
<p>Points: 1</p>
<p># Comments: 0</p>
]]></description><pubDate>Fri, 17 Jul 2026 17:13:03 +0000</pubDate><link>https://old.reddit.com/r/ClaudeCode/comments/1uz5tpl/tilepack_repos_docs_files_and_prompts_into_images/</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48949741</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48949741</guid></item><item><title><![CDATA[I Reimplemented the Workflows of 40 Multi-Agent LLM Papers – Here Are Lessons]]></title><description><![CDATA[
<p>Article URL: <a href="https://old.reddit.com/r/vibecoding/comments/1uxpox5/i_reimplemented_the_core_workflows_of_40/">https://old.reddit.com/r/vibecoding/comments/1uxpox5/i_reimplemented_the_core_workflows_of_40/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48929623">https://news.ycombinator.com/item?id=48929623</a></p>
<p>Points: 3</p>
<p># Comments: 0</p>
]]></description><pubDate>Thu, 16 Jul 2026 02:12:05 +0000</pubDate><link>https://old.reddit.com/r/vibecoding/comments/1uxpox5/i_reimplemented_the_core_workflows_of_40/</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48929623</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48929623</guid></item><item><title><![CDATA[Show HN: H5i-Python: Python SDK for Programmable Multi-Agent Orchestration]]></title><description><![CDATA[
<p>h5i-python is the Python SDK for the h5i orchestra engine. This SDK lets you define and execute multi-agent coding workflows across Claude Code, Codex, and other runtimes as ordinary Python programs.</p>
<hr>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48927933">https://news.ycombinator.com/item?id=48927933</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Wed, 15 Jul 2026 22:25:13 +0000</pubDate><link>https://github.com/h5i-dev/h5i-python</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48927933</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48927933</guid></item><item><title><![CDATA[How to Quantitatively Evaluate Prompt Quality in Claude Code and Codex]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@Koukyosyumei/how-to-quantitatively-evaluate-prompt-quality-in-claude-code-and-codex-47f2f27f4bc5">https://medium.com/@Koukyosyumei/how-to-quantitatively-evaluate-prompt-quality-in-claude-code-and-codex-47f2f27f4bc5</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48898409">https://news.ycombinator.com/item?id=48898409</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Mon, 13 Jul 2026 20:32:23 +0000</pubDate><link>https://medium.com/@Koukyosyumei/how-to-quantitatively-evaluate-prompt-quality-in-claude-code-and-codex-47f2f27f4bc5</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48898409</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48898409</guid></item><item><title><![CDATA[A Cursor Sandbox Escape Shows Why AI Agents Need Kernel Boundaries]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@Koukyosyumei/a-cursor-sandbox-escape-shows-why-ai-agents-need-kernel-boundaries-281efdb56396">https://medium.com/@Koukyosyumei/a-cursor-sandbox-escape-shows-why-ai-agents-need-kernel-boundaries-281efdb56396</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48823200">https://news.ycombinator.com/item?id=48823200</a></p>
<p>Points: 1</p>
<p># Comments: 0</p>
]]></description><pubDate>Tue, 07 Jul 2026 20:24:09 +0000</pubDate><link>https://medium.com/@Koukyosyumei/a-cursor-sandbox-escape-shows-why-ai-agents-need-kernel-boundaries-281efdb56396</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48823200</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48823200</guid></item><item><title><![CDATA[New comment by syumei in "A Conflict-Free Multi-Agent Ensemble for Claude and Codex"]]></title><description><![CDATA[
<p>Thank you so much!</p>
]]></description><pubDate>Sat, 04 Jul 2026 11:41:19 +0000</pubDate><link>https://news.ycombinator.com/item?id=48784678</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48784678</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48784678</guid></item><item><title><![CDATA[A Conflict-Free Multi-Agent Ensemble for Claude and Codex]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@Koukyosyumei/a-conflict-free-multi-agent-ensemble-for-claude-and-codex-0ded61c5a35e">https://medium.com/@Koukyosyumei/a-conflict-free-multi-agent-ensemble-for-claude-and-codex-0ded61c5a35e</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48782358">https://news.ycombinator.com/item?id=48782358</a></p>
<p>Points: 1</p>
<p># Comments: 2</p>
]]></description><pubDate>Sat, 04 Jul 2026 03:18:25 +0000</pubDate><link>https://medium.com/@Koukyosyumei/a-conflict-free-multi-agent-ensemble-for-claude-and-codex-0ded61c5a35e</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48782358</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48782358</guid></item><item><title><![CDATA[CurXecute: When a Slack message rewrites your editor's config and runs code]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@Koukyosyumei/curxecute-when-a-slack-message-rewrites-your-editors-config-and-runs-code-f7f7907cf0a9">https://medium.com/@Koukyosyumei/curxecute-when-a-slack-message-rewrites-your-editors-config-and-runs-code-f7f7907cf0a9</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48776263">https://news.ycombinator.com/item?id=48776263</a></p>
<p>Points: 3</p>
<p># Comments: 0</p>
]]></description><pubDate>Fri, 03 Jul 2026 15:35:28 +0000</pubDate><link>https://medium.com/@Koukyosyumei/curxecute-when-a-slack-message-rewrites-your-editors-config-and-runs-code-f7f7907cf0a9</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48776263</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48776263</guid></item><item><title><![CDATA[Claude Code SOCKS5 Bypass Shows Why Egress Filters Belong at the Boundary]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@Koukyosyumei/claude-codes-socks5-proxy-bypass-why-egress-filtering-must-happen-at-the-boundary-aaa445019e69">https://medium.com/@Koukyosyumei/claude-codes-socks5-proxy-bypass-why-egress-filtering-must-happen-at-the-boundary-aaa445019e69</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48763253">https://news.ycombinator.com/item?id=48763253</a></p>
<p>Points: 1</p>
<p># Comments: 0</p>
]]></description><pubDate>Thu, 02 Jul 2026 15:40:38 +0000</pubDate><link>https://medium.com/@Koukyosyumei/claude-codes-socks5-proxy-bypass-why-egress-filtering-must-happen-at-the-boundary-aaa445019e69</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48763253</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48763253</guid></item><item><title><![CDATA[Reached 440+ stars: Auditable sandbox to record what AI agents did]]></title><description><![CDATA[
<p>Article URL: <a href="https://old.reddit.com/r/SideProject/comments/1ul5fe9/reached_440_stars_built_an_auditable_sandbox_that/">https://old.reddit.com/r/SideProject/comments/1ul5fe9/reached_440_stars_built_an_auditable_sandbox_that/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48755675">https://news.ycombinator.com/item?id=48755675</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Thu, 02 Jul 2026 02:23:29 +0000</pubDate><link>https://old.reddit.com/r/SideProject/comments/1ul5fe9/reached_440_stars_built_an_auditable_sandbox_that/</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48755675</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48755675</guid></item><item><title><![CDATA[Auditable Workspaces for AI Coding Agents]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@Koukyosyumei/auditable-workspaces-for-ai-coding-agents-de00eff5f9b9">https://medium.com/@Koukyosyumei/auditable-workspaces-for-ai-coding-agents-de00eff5f9b9</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48746845">https://news.ycombinator.com/item?id=48746845</a></p>
<p>Points: 1</p>
<p># Comments: 0</p>
]]></description><pubDate>Wed, 01 Jul 2026 13:54:34 +0000</pubDate><link>https://medium.com/@Koukyosyumei/auditable-workspaces-for-ai-coding-agents-de00eff5f9b9</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48746845</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48746845</guid></item><item><title><![CDATA[I built an anime-style UI for watching AI coding agents review each other's code]]></title><description><![CDATA[
<p>Article URL: <a href="https://old.reddit.com/r/codex/comments/1uit86f/i_built_an_animestyle_ui_for_watching_ai_coding/">https://old.reddit.com/r/codex/comments/1uit86f/i_built_an_animestyle_ui_for_watching_ai_coding/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48719426">https://news.ycombinator.com/item?id=48719426</a></p>
<p>Points: 3</p>
<p># Comments: 0</p>
]]></description><pubDate>Mon, 29 Jun 2026 14:03:14 +0000</pubDate><link>https://old.reddit.com/r/codex/comments/1uit86f/i_built_an_animestyle_ui_for_watching_ai_coding/</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48719426</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48719426</guid></item><item><title><![CDATA[New comment by syumei in "Claude Code and Codex Sandbox Untrusted Code"]]></title><description><![CDATA[
<p>Claude Code and Codex both run untrusted commands. This post compares how their sandboxes protect your repo, secrets, and host machine.</p>
]]></description><pubDate>Sat, 27 Jun 2026 21:25:57 +0000</pubDate><link>https://news.ycombinator.com/item?id=48701925</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48701925</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48701925</guid></item><item><title><![CDATA[How Claude Code and Codex Sandbox Untrusted Code]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@Koukyosyumei/how-claude-code-and-codex-sandbox-untrusted-code-ba39b493046a">https://medium.com/@Koukyosyumei/how-claude-code-and-codex-sandbox-untrusted-code-ba39b493046a</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48701924">https://news.ycombinator.com/item?id=48701924</a></p>
<p>Points: 2</p>
<p># Comments: 1</p>
]]></description><pubDate>Sat, 27 Jun 2026 21:25:57 +0000</pubDate><link>https://medium.com/@Koukyosyumei/how-claude-code-and-codex-sandbox-untrusted-code-ba39b493046a</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48701924</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48701924</guid></item><item><title><![CDATA[Two Heads Are Better Than One: Run Many AI Agents, Merge One Auditable Result]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@Koukyosyumei/two-heads-are-better-than-one-run-many-coding-agents-merge-one-auditable-result-de58be3a1b1b">https://medium.com/@Koukyosyumei/two-heads-are-better-than-one-run-many-coding-agents-merge-one-auditable-result-de58be3a1b1b</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48631543">https://news.ycombinator.com/item?id=48631543</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Mon, 22 Jun 2026 15:26:23 +0000</pubDate><link>https://medium.com/@Koukyosyumei/two-heads-are-better-than-one-run-many-coding-agents-merge-one-auditable-result-de58be3a1b1b</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48631543</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48631543</guid></item><item><title><![CDATA[New comment by syumei in "Improving token efficiency in GitHub Copilot"]]></title><description><![CDATA[
<p>quite interesting post</p>
]]></description><pubDate>Wed, 17 Jun 2026 14:51:21 +0000</pubDate><link>https://news.ycombinator.com/item?id=48571362</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48571362</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48571362</guid></item><item><title><![CDATA[How Claude Code Broke My Git Worktree]]></title><description><![CDATA[
<p>Article URL: <a href="https://medium.com/@Koukyosyumei/how-claude-code-completely-broke-my-git-worktree-fc74effc9c4e">https://medium.com/@Koukyosyumei/how-claude-code-completely-broke-my-git-worktree-fc74effc9c4e</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48571146">https://news.ycombinator.com/item?id=48571146</a></p>
<p>Points: 3</p>
<p># Comments: 0</p>
]]></description><pubDate>Wed, 17 Jun 2026 14:36:02 +0000</pubDate><link>https://medium.com/@Koukyosyumei/how-claude-code-completely-broke-my-git-worktree-fc74effc9c4e</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48571146</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48571146</guid></item><item><title><![CDATA[A Git/LFS-backed unified tool-output format for AI agents, with 95% token cut]]></title><description><![CDATA[
<p>Article URL: <a href="https://old.reddit.com/r/codex/comments/1u0amqg/a_gitlfsbacked_unified_format_of_tool_output_for/">https://old.reddit.com/r/codex/comments/1u0amqg/a_gitlfsbacked_unified_format_of_tool_output_for/</a></p>
<p>Comments URL: <a href="https://news.ycombinator.com/item?id=48448467">https://news.ycombinator.com/item?id=48448467</a></p>
<p>Points: 2</p>
<p># Comments: 0</p>
]]></description><pubDate>Mon, 08 Jun 2026 17:39:16 +0000</pubDate><link>https://old.reddit.com/r/codex/comments/1u0amqg/a_gitlfsbacked_unified_format_of_tool_output_for/</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48448467</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48448467</guid></item><item><title><![CDATA[New comment by syumei in "Claude Code and Codex can have real-time conversation via Git"]]></title><description><![CDATA[
<p>Fair criticism. I don’t think the value is just "agents can send text to each other”; that part has many implementaton and design choices. The value of h5i I’m exploring is making the intermediate state reviewable: review requests, risks, handoffs, unresolved claims, associated prompts and AI-to-Ai conveersation, and final decisions tied to the branch/PR.</p>
]]></description><pubDate>Thu, 04 Jun 2026 18:08:58 +0000</pubDate><link>https://news.ycombinator.com/item?id=48402361</link><dc:creator>syumei</dc:creator><comments>https://news.ycombinator.com/item?id=48402361</comments><guid isPermaLink="false">https://news.ycombinator.com/item?id=48402361</guid></item></channel></rss>