Nine repos to cut Opus 5.5 costs, including a Jev browser agent

Skunzu @skunzuOriginally posted 2026.10.18

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THIS SHOULD BE F*CKING ILLEGAL 9 repos, 465K stars, and Opus 5.5 finally stops burning your money on work it never needed to do. if Opus 5.5 is eating your budget and you have no idea where it goes, copy this: claude-code-router: sits in front of Claude Code and sends every request to the cheapest model that can handle it. Haiku does the grep, Opus only gets the hard part. 37k stars http://github.com/musistudio/claude-code-router rtk: shrinks test, build and git output before the model ever sees it. one binary, up to 90% less bash noise in your context. 83k stars http://github.com/rtk-ai/rtk claude-mem: remembers what happened in your past sessions and feeds back only the part that matters, so you stop paying to re-explain your project every morning. 100k stars http://github.com/thedotmack/claude-mem context-mode: huge tool output goes into a local database instead of your context window, and Claude pulls out only the lines it needs. 29k stars http://github.com/mksglu/context-mode caveman: makes Claude answer in short telegraphic sentences. the code stays exactly the same, and output is the expensive side on Opus 5.5 ($20 per million). 112k stars http://github.com/JuliusBrussee/caveman ccusage: reads your local Claude Code logs and shows which sessions and which days actually burned the tokens. 19k stars http://github.com/ryoppippi/ccusage serena: gives Claude symbol-level lookups through a language server, so it reads the one function and not the 2,000 lines around it. 30k stars http://github.com/oraios/serena code-review-graph: maps your repo as a graph and hands Claude only the code connected to the change you're reviewing. 32k stars http://github.com/tirth8205/code-review-graph jev-ultrafast: a browser agent where Jev picks every click, and a text model only wakes up when something has to be typed. 23k stars http://github.com/browser-use/jev-ultrafast none of them makes Opus smarter. every one stops it from paying for work it never needed to do run ccusage before and after, so you know what you actually saved

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