01 FEATURE
Single static binary, no runtime.
Pure Rust, single-threaded by design. Zero tokio, zero async-std. Cold start under 5 ms; every shell call stays cheap.
Strip the noise
from every shell command
before it hits the model.
$ curl -fsSL https://tok0.dev/install.sh | sh
RANGE: 1.000 TOKS — 801.000 TOKS RANGE: 1.000 TOKS — 801.000 TOKS
[ SYSTEM LOG ]
# INIT............... OK
# SIGNAL LOCK........ STABLE
# FIELD RELAY........ CONNECTED
# AI OPS HANDSHAKE... COMPLETE
# FWD LINK 02........ ONLINE
CURRENT SAVINGS:
0
TOKENS
TOK0 | CLI COMPRESSION PROXY
01 / 03 FIELD TELEMETRY
Live numbers
from the field.
Every tok0 install pushes anonymous compression counters to api.tok0.dev. The four tiles below read straight from that database and refresh on every page load.
01 · Tokens compressed
11.20M
Cumulative · all tracked instances
02 · Avg. savings
69.3%
Across every wrapped command
03 · Active instances
31
Reporting in last 10 days
04 · Commands run · 30 d
6,883
16 day rolling window
● Live · api.tok0.dev/statsGENERATED · 2026-05-08 18:53:36 UTC
[ 30-DAY SAVED TOKENS ] 16 POINTS · 11.20M TOTAL
2026-04-22 2026-05-08
Top commands · by tokens saved
- 2.57Mgit log 1,029 runs
- 1.27Mgit diff 696 runs
- 1.12Mgit status 1,901 runs
- 998.1Knpm install 280 runs
- 835.6Kcargo build 394 runs
- 822.3Kcargo test 288 runs
SOURCE · D1 · command_stats /stats
[ FLEET BREAKDOWN ] 31 INSTANCES
By operating system
- macOS
- Linux
- Windows
By country
DE 8 US 7 FR 6 GR 5 IN 5
Estimated savings · input-token rates
$33.61
@ $3.00/M
· Sonnet-tier
Range $11.20 – $168 · Haiku $1.00/M → Opus $15.00/M
SOURCE · D2 · instances LIVE
02 / 03 SYSTEM SPECIFICATION
Built like a piece
of infrastructure.
Six rules. Each one enforced by cargo clippy -D warnings
and snapshot tests on every PR.
02 FEATURE
Deterministic compression pipeline.
Strip ANSI · pattern replace · output match · line select · truncate · head/tail window · hard cap · empty fallback. Pure functions, snapshot-tested with a CI floor on min_savings_pct.
03 FEATURE
Declarative rules, embedded at build.
100+ built-in TOML compression rules across git, cargo, npm, docker, kubectl, terraform, pytest, and more. Every rule ships with a CI-asserted savings floor; PRs that drop below it fail to merge.
04 FEATURE
Safe by default.
Filter errors fall back to raw output. Exit codes propagate unchanged. Local SQLite meter — no account, no upload by default.
05 FEATURE
Trust-gated execution surface.
Project rules and git-installed extensions are trust-prompted before they load. Bridge hooks are SHA-256 verified on every run against an embedded manifest; tok0 verify catches drift, manual edits, or tampering.
06 FEATURE
CI-enforced quality bar.
cargo fmt + cargo clippy --all-targets -- -D warnings + cargo test on every PR. The matrix runs default and --features cloud; both have to pass before merge.
03 / 03 COMPATIBLE SYSTEMS
Drops into the
agent you already use.
One tok0 init auto-detects every supported AI tool on your machine and installs the right hook, rule file, or AGENTS.md entry. GUI-only tools (Cursor, Kimi Code) print a paste-in step instead.
[ AI TOOLS ] 9 SUPPORTED · 7 AUTO-INSTALL
- Claude Code Auto-installPreToolUse hook
~/.claude/settings.json - Cursor Paste-inrules file paste-in
Settings → Rules - Gemini CLI Auto-installauto-loaded instructions
~/.gemini/GEMINI.md - Windsurf Auto-installglobal rules file
~/.codeium/windsurf/memories/… - Cline Auto-installCline Rules toggle
~/Documents/Cline/Rules/tok0.md - Amp Auto-installAGENTS.md auto-load
~/.config/amp/AGENTS.md - OpenCode Auto-installAGENTS.md auto-load
~/.config/opencode/AGENTS.md - Codex ManualAGENTS.md (manual)
~/.codex/AGENTS.md - Kimi Code Paste-inmanual paste-in
~/.kimi/tok0.md
SOURCE · /bridge/setup.rs tok0 init