--- title: I built Claude's Dreams feature myself using Mem0 and... description: Inspired by Anthropic's Claude Dreams feature — which lets AI agents reflect on past sessions during idle time to improve memory — the author built a similar... canonical: https://daily.dev/posts/i-built-claude-s-dreams-feature-myself-using-mem0-and-codex-and-it-changed-how-i-code-dpai75ehw twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: I built Claude's Dreams feature myself using Mem0 and Codex, and it changed how I code | daily.dev og:description: Inspired by Anthropic's Claude Dreams feature — which lets AI agents reflect on past sessions during idle time to improve memory — the author built a similar... og:url: https://daily.dev/posts/i-built-claude-s-dreams-feature-myself-using-mem0-and-codex-and-it-changed-how-i-code-dpai75ehw og:image: https://api.daily.dev/og/posts/dPAI75ehw.png og:image:alt: I built Claude's Dreams feature myself using Mem0 and Codex, and it changed how I code og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # I built Claude's Dreams feature myself using Mem0 and Codex, and it changed how I code **[XDA Developers](https://daily.dev/sources/xda-developers)** · 6 min read · 3 upvotes · 0 comments ## Summary Inspired by Anthropic's Claude Dreams feature — which lets AI agents reflect on past sessions during idle time to improve memory — the author built a similar system using Mem0 as the memory layer and OpenAI Codex as the agent. The setup uses a separate Python-based reflection layer that periodically pulls memories and session data from Mem0, feeds them into a model for analysis, and writes synthesized insights back as higher-level memories. Memory is organized into three layers: raw memories, session summaries, and synthesized insights, preventing the store from becoming noisy over time. The result is an agent that learns from past interactions rather than starting fresh each session. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Claude Code learns from my mistakes between sessions now, and my setup runs itself](https://daily.dev/posts/claude-code-learns-from-my-mistakes-between-sessions-now-and-my-setup-runs-itself-xpfy38kzw) · XDA Developers · 3 upvotes · 0 comments - [I gave Claude Code memory between sessions, and my setup started running itself](https://daily.dev/posts/i-gave-claude-code-memory-between-sessions-and-my-setup-started-running-itself-55iakitq2) · XDA Developers · 0 upvotes · 0 comments --- Tags: [#python](https://daily.dev/tags/python), [#ai-agents](https://daily.dev/tags/ai-agents), [#codex](https://daily.dev/tags/codex) [View this post on daily.dev](https://daily.dev/posts/i-built-claude-s-dreams-feature-myself-using-mem0-and-codex-and-it-changed-how-i-code-dpai75ehw) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"I built Claude's Dreams feature myself using Mem0 and Codex, and it changed how I code","url":"https://daily.dev/posts/i-built-claude-s-dreams-feature-myself-using-mem0-and-codex-and-it-changed-how-i-code-dpai75ehw","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/i-built-claude-s-dreams-feature-myself-using-mem0-and-codex-and-it-changed-how-i-code-dpai75ehw"},"datePublished":"2026-06-06T14:33:22.816Z","dateModified":"2026-06-06T14:33:50.853Z","description":"Inspired by Anthropic's Claude Dreams feature — which lets AI agents reflect on past sessions during idle time to improve memory — the author built a similar...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/02895b98af863d5a2b35f042a07a711a?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/02895b98af863d5a2b35f042a07a711a?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"XDA Developers","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"XDA Developers","logo":"https://media.daily.dev/image/upload/s--kCg6yyAP--/f_auto,q_auto/v1774964407/logos/xda-developers?_a=BAMAMiWQ0","url":"https://daily.dev/sources/xda-developers"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/i-built-claude-s-dreams-feature-myself-using-mem0-and-codex-and-it-changed-how-i-code-dpai75ehw","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":3},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"python,ai-agents,codex","timeRequired":"PT6M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"XDA Developers","item":"https://daily.dev/sources/xda-developers"},{"@type":"ListItem","position":3,"name":"I built Claude's Dreams feature myself using Mem0 and Codex, and it changed how I code"}]} ```