Lowfat – pluggable CLI filter that saved 91.8% of my LLM tokens
Hi HN, not sure if anyone would be interested, but just wanted to share that I've been maintaining my small tool called 'lowfat' that helps me filters some of my verbose CLI output. It's a single binary, works as an agent hook or a shell wrapper. It has a plugin system to customize filters per command. The idea is pretty simple: agents don't need the full kubectl get -o yaml or any 10k-line dump to make decisions. So that lowfat sits in between, strips the noise, and passes through what matters. Here's my real report after 2 months of personal use: lowfat history --all lowfat plugin…
Lowfat – pluggable CLI filter that saved 91.8% of my LLM tokens launched on June 5, 2026 with 156 votes, #205 of 22,647 launches that month and more than 95% of that year's launches.
In plain words
Lowfat is a command-line filter tool that reduces verbose output from CLI commands before passing it to AI agents or shell wrappers. It works as a single binary with a customizable plugin system designed for different commands. The tool strips unnecessary information from outputs like kubectl and git commands, keeping only relevant data. After two months of use, the creator reported token savings ranging from 34% to 96% across various commands, with an average reduction of 91.8%.
written from the facts on this page · September 2026
From the sources
lowfat - slim your command output. strips noise, saves tokens. - zdk/lowfat
lowfat is a lightweight CLI tool that reduces AI token costs by filtering CLI output and file content before it reaches your agent. On branch main Your branch is up to date with 'origin/main'. Changes not staged for commit: (use "git add <file>..." to update what will be committed) (use "git restore <file>..." to discard changes in working directory) modified: crates/lowfat-cli/src/commands/plugin.rs modified: crates/lowfat-cli/src/main.rs Untracked files: (use "git add <file>..." to include in what will be committed) plugins/git/git-compact/samples/ no changes added to commit (use "git add" and/or "git commit -a") After — lowfat git status : On branch main Changes not staged for commit:…from github.com
In the maker’s words, at launch
Hi HN, not sure if anyone would be interested, but just wanted to share that I've been maintaining my small tool called 'lowfat' that helps me filters some of my verbose CLI output. It's a single binary, works as an agent hook or a shell wrapper. It has a plugin system to customize filters per command. The idea is…
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