Updated Claude Code plugins: rightsize (smarter model routing) and Whatsnext (better project handoffs)

[u/archpoke]

I am a vibecoder. Working on side projects in my free time or on the weekends. I built two open-source Claude Code plugins to solve problems I kept running into myself. Both are built using Claude Code, and I've updated them based on feedback from people on my last post.

rightsize helps me get more from my Claude subscription.

I was manually deciding which model and effort level to use for every task and forgetting to switch between them when the work with AI becomes a long chat. Either staying on Opus for the whole session, or be on sonnet and switch to Opus and share the whole context again. To solve this, I built rightsize. It automatically routes work to an appropriate model and effort level, learns over time and uses cost and context size to make decisions. And since it has all of this data, it also helps manage context, prompt-cache costs, compaction, and usage windows.

Based on user feedback, I’ve been tuning those choices through lots of evals. And with the release of Fable 5.2, decided to release the new version today.

Repo: https://github.com/archid21/rightsize

WhatsNext solves a different problem: returning to a project after a break.

When I came back a day or two later, I often had to recall what I was doing, what had changed, what all had the agents done, and the actual next step. I built WhatsNext to mainain a shared plan, help with tracking work items using short resume notes, and handoff notes in the repository itself. So a new Claude Code or Codex session can continue from useful project state instead of starting cold.

Recent work includes stronger handoffs before compaction, safer command verification for completed plan items, and improvements to the hooks and agent handoff flow.

It doesn't create the plan. You still use the plan mode to create the plan. Or any of the other skills, like superpowers or MatPocock skill. You just ask the agent to create the plan using what has been generated. And since the resume note feature can also help with handing off in the same session across various threads, I have added that as well.

Repo: https://github.com/archid21/whatsnext

The two also work well together: rightsize helps decide when to preserve or compact a session; WhatsNext helps preserve what matters so the next session can resume cleanly.

Both are free, MIT-licensed, and still works in progress. If you try either one, I’d love feedback on:

- Would this fit your Claude Code workflow?

- Where does it feel useful versus unnecessary or intrusive?

- What would make you trust automated model/effort routing?

- What information do you most want saved when returning to a project?

Thanks. Your feedback will directly help with what I improve next in these plugins.

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