OpenAI Codex project ideas

1. 1Split the docs into small reference files by topic, indexed in SKILL.md.
2. 2Tell the agent to read the index before it writes calls to that library.
3. 3Charge for packs that update when a new version ships.

The Reddit threads

• ▲516I built a Claude skill that turns any technical book PDF into a skill you can query while workingr/claudeskills · 62 comments
• ▲304I stopped letting Claude Code guess how my app works. Now it reads the manual first. The difference is night and day.r/ClaudeCode · 98 comments
• ▲300I built a Claude Code Skill that lets Claude chat directly with Google's NotebookLM for zero-hallucination answers from your own documentation.r/ClaudeAI · 48 comments
• ▲4Your AI coding agent isn't hallucinating. It's out of date.r/mcp · 9 comments

1. 1Sell a fixed-scope audit: architecture map, test coverage and top 10 risks.
2. 2Have subagents write tests before any refactor starts.
3. 3Upsell a monthly maintenance plan.

The Reddit threads

• ▲831The real cost of vibe coding isn't the subscription. It's what happens at month 3.r/vibecoding · 286 comments
• ▲194Anyone else feels like vibe coding hits a wall after a point ?r/vibecoding · 178 comments
• ▲84Whats happening to all the vibe coded apps out there ?r/vibecoding · 152 comments

1. 1Use a Claude Code Notification hook to push when a session waits for input.
2. 2Send the answer back through a small relay the session polls.
3. 3Add Codex through its notify setting.

The Reddit threads

• ▲629Claude Code just got Remote Controlr/ClaudeCode · 287 comments
• ▲276If someone at OpenAI is reading this, we need mobile remote control for Codex ASAP. S tier featurer/OpenAI · 51 comments
• ▲112Easy Steps to Activate Codex Remote Control on Windowsr/codex · 67 comments
• ▲39Claude Code needs real remote control from mobiler/ClaudeCode · 92 comments

1. 1Split the repo into functions and classes with tree-sitter and embed them locally.
2. 2Expose a search tool that returns ranked snippets with file paths.
3. 3Sell a shared index that stays current for teams.

The Reddit threads

• ▲907[Open Source] I reduced Claude Code input tokens by 97% using local semantic search (Benchmark vs Grep)r/ClaudeAI · 137 comments
• ▲139[Open Source] We built a local code search MCP for Claude Code that uses ~98% fewer tokens than grep+readr/ClaudeAI · 54 comments

1. 1Parse each instructions file and count tokens per section.
2. 2Flag rules that contradict each other or point at files that no longer exist.
3. 3Sell a GitHub Action that comments when a pull request bloats the file.

The Reddit threads

• ▲719CLAUDE.md is a super power.r/ClaudeAI · 123 comments
• ▲203Codex Pro usage feels excellent once you tune your AGENTS.mdr/codex · 58 comments
• ▲46I spent way too long figuring out Cursor rules. Here's what actually worked for mer/cursor · 36 comments

1. 1Expose remember, recall and forget tools over MCP.
2. 2Store decisions and architecture notes per repo, not whole transcripts.
3. 3Make hosted sync across machines the paid tier.

The Reddit threads

• ▲741I used Obsidian as a persistent brain for Claude Code and built a full open source tool over a weekendr/ClaudeAI · 342 comments
• ▲76Combined Karpathy's LLM Wiki with Milla Jovovich's MemPalace MCP. Claude Code now remembers everything across sessionsr/ClaudeAI · 70 comments
• ▲39My agent's memory is an MCP server over a git repo of markdown. Same memory in Claude Code, Cursor, and anything that speaks MCPr/mcp · 32 comments
• ▲8How to give memory and context to your Codex Clir/codex · 3 comments
• ▲2Made an MCP server that remembers context across Cursor sessionsr/cursor · 10 comments

1. 1Expose a delegate tool that sends a task and the files it needs to a chosen model.
2. 2Return the answer with its cost and time.
3. 3Track which model wins each kind of task and suggest routes.

The Reddit threads

• ▲194I built an MCP server so Claude Code can delegate work to GPT-5.6, DeepSeek, GLM and a local Qwen — then benchmarked all of them against Claude itself (198 runs, hidden tests)r/ClaudeAI · 100 comments
• ▲381Wait, Codex can now invoke Claude Code sessions?r/ClaudeCode · 160 comments
• ▲285Why Using Astra Inside Claude Code Is the New Meta (& How To Do It)r/ClaudeAI · 66 comments

1. 1Collect 10 to 20 samples of the user's own writing into a reference file.
2. 2List the words and punctuation readers flag as AI and check each draft against them.
3. 3Sell shared voice profiles to small teams.

The Reddit threads

• ▲424unslop-text: a Claude skill that flags and removes the patterns that make writing read as AI-generated.r/ClaudeAI · 90 comments
• ▲133I read the UMD study on why AI text is detectable and built a Claude skill around its main finding: cleaning up vocabulary fixes almost nothingr/ClaudeAI · 102 comments
• ▲49Has anyone figured out how to make Claude write like a human?r/claudeskills · 76 comments

1. 1Strip navigation, ads and boilerplate and return Markdown.
2. 2Offer an outline mode that lists headings and links first.
3. 3Host a version that renders JavaScript-heavy pages.

The Reddit threads

• ▲384PullMD - gave Claude Code an MCP server so it stops burning tokens parsing HTMLr/ClaudeAI · 61 comments
• ▲112Charlotte: a browser MCP server built for token efficiency (30 tools, 3 detail levels, 136x smaller than Playwright MCP on complex pages)r/mcp · 37 comments

1. 1Pick one trade and list the spreadsheets it runs on.
2. 2Rebuild the most painful one as a small app in a week.
3. 3Charge setup plus a monthly fee for hosting and changes.

The Reddit threads

• ▲479I'm a vibecoder turned AI consultant for small businesses. I make more than most of you.r/AskVibecoders · 173 comments
• ▲9"Vibe coding" will change how small businesses build internal tools completely.r/vibecoding · 41 comments
• ▲7Built 6 internal business tools using Google Apps Script + Claude AI with no coding background. 6 employees, ~$3M/year, feels like my team doubled without hiring anyone.r/vibecoding · 20 comments

1. 1Proxy several downstream MCP servers behind one endpoint.
2. 2Expose a search_tools tool and load full tool schemas only on demand.
3. 3Charge for hosted routing and shared team server lists.

The Reddit threads

• ▲147How to connect 100 MCP servers without the context window explodingr/mcp · 39 comments
• ▲235I removed 63% of my Claude Code setup and it got 10x faster. Stop installing everythingr/ClaudeCode · 111 comments

1. 1Pick one app with a scripting or plugin layer and wrap its main actions as tools.
2. 2Return renders or screenshots so the agent can check its own work.
3. 3Sell to that app's user community first.

The Reddit threads

• ▲227Unreal engine 5.8 MCP connected to claude coder/aigamedev · 63 comments
• ▲91We built an MCP server for CADr/mcp · 17 comments
• ▲50PilotCut: I got mass-frustrated with CapCut, and FinalCut Pro. Built my own Mac video editor that lets any AI agent do the cutting. Basically a tool for ChatGPT Codex / Claude Code for your video editingr/macapps · 60 comments

1. 1Add a /second-opinion command that runs the diff through Codex in read-only mode.
2. 2Merge both reviews into one list marked agree or disagree.
3. 3Post the merged review as a pull request comment.

The Reddit threads

• ▲325When you ask Claude to review vs when you ask Codex to reviewr/ClaudeCode · 111 comments
• ▲42How do you handle code reviews when 1 dev uses AI to build a massive feature but needs peer feedbackr/ChatGPTCoding · 47 comments

1. 1Create one worktree and branch per task with a single command.
2. 2Show each agent's state: working, waiting for approval, or done.
3. 3Merge or throw away a worktree from the dashboard when the task ends.

The Reddit threads

• ▲220Stop running multiple Claude Code agents in the same repo. Use worktrees in your VSCoder/ClaudeAI · 62 comments
• ▲33How do you actually manage multiple parallel Claude Code sessions without losing your mind?r/ClaudeCode · 113 comments
• ▲5How are you actually running Codex at scale? Worktrees are theoretically perfect and practically painful. What's your setup?r/codex · 20 comments

1. 1Write one skill per recurring job, starting with support replies and weekly metrics.
2. 2Give each skill the templates and data exports it needs to run without questions.
3. 3Sell the set and add a new skill each month.

The Reddit threads

• ▲220My iOS app is 4 months old and does $944 MRR. Every "department" is a Claude Code skill. Full stack with the actual workflows and costsr/AppBusiness · 73 comments
• ▲29What claude skills are worth using for shopify?r/AutomateShopify · 18 comments

1. 1Write a SKILL.md that triggers on "wrap up" and "pick up where we left off".
2. 2Save decisions, open tasks and file pointers to HANDOFF.md.
3. 3Pair it with a SessionStart hook that loads the note automatically.

The Reddit threads

• ▲95I built a persistent AI assistant with Claude Code + Obsidian + QMD, and it's starting to feel like a real long-term "second brain"r/ClaudeCode · 81 comments
• ▲32What tools are you using to give your LLM a persistent second brain / long-term memory?r/LocalLLaMA · 106 comments
• ▲8How to give memory and context to your Codex Clir/codex · 3 comments

1. 1Detect the framework and database from the repo.
2. 2Provision hosting and a database through provider APIs, then set secrets.
3. 3Expose it as an MCP server so the agent can deploy for the user.

The Reddit threads

• ▲40Vibe coders (especially if you're not very technical): where do you deploy your apps and how has it gone?r/vibecoding · 65 comments
• ▲4I vibe-coded an internal tool at work. How do I go from "cool prototype" to "something people can actually depend on"?r/vibecoding · 13 comments
• ▲84Whats happening to all the vibe coded apps out there ?r/vibecoding · 152 comments

1. 1Read ~/.claude.json, ~/.codex/config.toml and ~/.cursor/mcp.json into one list.
2. 2Edit once and write each tool's own format back.
3. 3Sell encrypted sync of that list across machines.

The Reddit threads

• ▲2I kept losing track of which MCP servers I had installed across my editors — built a local CLI to list them allr/mcp · 6 comments
• ▲81What is the most underrated FREE mcp server you know of?r/mcp · 113 comments

1. 1Connect with a database role that cannot write, and reject anything but SELECT.
2. 2Cap returned rows and mask columns like emails and tokens.
3. 3Log every query so the team can see what the agent looked at.

The Reddit threads

• ▲42An AI Agent Just Destroyed Our Production Data. It Confessed in Writing.r/ExperiencedFounders · 96 comments
• ▲19Production-ready Self-hosted Supabase distribution: SSO, PITR backups, monitoring, and a read-only MCP so your coding agent can build on it without touching a secretr/Supabase · 15 comments

1. 1Read .cursor/rules and turn each rule into an AGENTS.md section.
2. 2Copy MCP servers into the Codex and Claude Code config formats.
3. 3Print what could not be converted.

The Reddit threads

• ▲19Moving from Cursor to VS Code + Codex/Claude Code: Is it worth the switch?r/cursor · 48 comments
• ▲7Thinking of switching from Codex $20 to Cursor how are the limits and code quality?r/cursor · 40 comments
• ▲7I'm really thinking about switching to Codex from Cursor, how are the limits?r/codex · 16 comments

1. 1Pull the official MCP registry and collapse duplicate versions.
2. 2Call tools/list on every remote server and flag descriptions that instruct the model.
3. 3Publish grades free and sell a CI check that fails on low scores.

The Reddit threads

• ▲9I audited every server in the MCP registry to see how many actually work. Then I found 5 bugs in my own audit.r/mcp · 10 comments
• ▲6I checked if the source behind every server in the MCP registry is still up. 1 in 7 is gone.r/mcp · 14 comments
• ▲5I ran tools/list against every remote server in the official MCP registry. 54% answer, 29% of those are two operators, and 47 hosts tell the model what not to tell the user.r/mcp · 21 comments
• ▲2I deduplicated the entire official MCP registry. 101,219 entries are 31,309 servers, and 23% of those have no source repo.r/mcp · 0 comments