v0.1.0

First release of shush: cut the noise from command output before it reaches your AI agent.

• MCP server (shush mcp): run, compress, read_full, gain. Works in any MCP client.
• CLI: shush npm test, pipe mode, shush show <id>, shush gain
• Rules: test runners (vitest, jest, mocha, pytest, go test, cargo test, TAP), installs (npm, pnpm, yarn, pip, cargo, go), git status/log/diff, plus generic ANSI/progress/repeated-line/length handling
• Guarantees: error lines are never filtered (tested on real failing outputs), everything hidden is saved and retrievable, your command is never rewritten, exit codes are preserved
• Token counts with the o200k_base tokenizer

Benchmarks (real captured outputs)

Output	Before	After	Saved
git status	137	59	57%
git log (60 commits)	4,611	1,730	62%
git diff	3,270	2,215	32%
vitest, verbose, all passing	1,655	85	95%
vitest, 3 failures	1,010	1,009	0%
pytest -v, 2 failures	1,228	428	65%
go test -v, 1 failure	880	57	94%
cargo test (fresh build), 1 failure	631	194	69%
npm install (deprecated deps)	306	104	66%
npm ci --loglevel=verbose	5,670	76	99%
pip install requests rich	749	106	86%
tsc, 5 errors	152	152	0%
Total	20,299	6,215	69%

Install

claude mcp add shush -- npx -y github:celaldrg/shush mcp
# or
npx -y github:celaldrg/shush npm test

Not on npm yet. Node.js 20+. MIT.

Inspired by rtk and headroom; original implementation.