rtk-ai

rtk-ai/rtk

CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

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README.md

<p align="center">
  <strong>High-performance CLI proxy that cuts up to 90% of the bash output your agent reads</strong>
</p>

<p align="center">
  <a href="https://www.rtk-ai.app">Website</a> &bull;
  <a href="#installation">Install</a> &bull;
  <a href="https://www.rtk-ai.app/guide/troubleshooting">Troubleshooting</a> &bull;
  <a href="docs/contributing/ARCHITECTURE.md">Architecture</a> &bull;
  <a href="https://discord.gg/RySmvNF5kF">Discord</a>
</p>

<p align="center">
  <a href="README.md">English</a> &bull;
  <a href="README_fr.md">Francais</a> &bull;
  <a href="README_zh.md">中文</a> &bull;
  <a href="README_ja.md">日本語</a> &bull;
  <a href="README_ko.md">한국어</a> &bull;
  <a href="README_es.md">Espanol</a> &bull;
  <a href="README_pt.md">Português</a>
</p>

---

rtk filters and compresses command outputs before they reach your LLM context. Single Rust binary, 100+ supported commands, <10ms overhead.

## What RTK Does

RTK intercepts shell commands and compresses their output before your agent reads it.

| Operation | What RTK does to the output |
|-----------|-----------------------------|
| `ls` / `tree` | Tree format with file counts instead of one line per entry |
| `cat` / `read` | Smart file reading: signatures and structure over full bodies |
| `grep` / `rg` | Truncates long lines, groups matches by file |
| `ast-grep` | Groups structural matches by file, caps overflow |
| `git status` | Compact stat format, grouped by state |
| `git diff` | Reduced context, headers stripped |
| `git log` | Hash, author and subject only |
| `git add/commit/push` | Confirmation line instead of full progress output |
| `cargo test` / `npm test` | Failures only, passing tests collapsed to a count |
| `ruff check` | Grouped by rule and file |
| `sqlfluff lint` | Grouped by rule and file |
| `pytest` | Failures only, traceback trimmed |
| `go test` | NDJSON parsed, failures only |
| `docker ps` | Essential fields only |

## How Savings Work

RTK cuts **up to 90% of the bash output** your agent reads. That is what RTK measures, and it is not the same as cutting your bill by 90%.

Bash output is **one contributor to input tokens**, alongside your prompt, the system prompt and conversation history. Input tokens are in turn **only part of the bill**, which also counts output tokens. The reduction dilutes at every step.

The token counts RTK reports are estimated as `bytes / 4` — RTK ships no tokenizer, so the **percentages are reliable but the absolute token numbers are approximate**.

> Full explanation: [How RTK Savings Work](docs/guide/resources/savings-explained.md)

## Installation

### Homebrew (recommended)

```bash
brew install rtk
```

### winget (Windows)

Easiest way to install on Windows — one command, no PATH setup needed:

```powershell
winget install rtk-ai.rtk
```

### Quick Install (Linux/macOS)

```bash
curl -fsSL https://raw.githubusercontent.com/rtk-ai/rtk/refs/heads/master/install.sh | sh
```

> Installs to `~/.local/bin`. Add to PATH if needed:
> ```bash
> echo 'export PATH="$HOME/.local/bin:$PATH"' >> ~/.bashrc  # or ~/.zshrc
> ```

### Cargo

```bash
cargo install --git https://github.com/rtk-ai/rtk
```

### Pre-built Binaries

Download from [releases](https://github.com/rtk-ai/rtk/releases):
- macOS: `rtk-x86_64-apple-darwin.tar.gz` / `rtk-aarch64-apple-darwin.tar.gz`
- Linux: `rtk-x86_64-unknown-linux-musl.tar.gz` / `rtk-aarch64-unknown-linux-gnu.tar.gz`
- Windows: `rtk-x86_64-pc-windows-msvc.zip`

> **Windows users**: Extract the zip and place `rtk.exe` somewhere in your PATH (e.g. `C:\Users\<you>\.local\bin`). Run RTK from **Command Prompt**, **PowerShell**, or **Windows Terminal** — do not double-click the `.exe` (it will flash and close). The full hook system works natively on Windows (and in [WSL](https://learn.microsoft.com/en-us/windows/wsl/install)). See [Windows setup](#windows) below for details.

### Verify Installation

```bash
rtk --version   # Should show "rtk 0.28.2"
rtk gain        # Should show the savings dashboard
```

> **Name collision warning**: Another project named "rtk" (Rust Type Kit) exists on crates.io. If `rtk gain` fails, you have the wrong package. Use `cargo install --git` above instead.

## Quick Start

```bash
# 1. Install for your AI tool
rtk init -g                     # Claude Code / Copilot (default)
rtk init -g --gemini            # Gemini CLI
rtk init -g --codex             # Codex (OpenAI)
rtk init -g --agent cursor      # Cursor
rtk init -g --agent windsurf    # Windsurf
rtk init --agent cline          # Cline / Roo Code
rtk init --agent kilocode       # Kilo Code
rtk init --agent antigravity    # Google Antigravity
rtk init --agent kimi           # Kimi AI
rtk init -g --agent pi          # Pi
rtk init --agent omp            # Oh My Pi (OMP)
rtk init --agent hermes         # Hermes
rtk init -g --agent droid       # Factory Droid
rtk init --agent trae           # Trae (project: .trae/hooks.json)
rtk init -g --agent trae        # Trae global: ~/.trae and existing ~/.trae-cn

# 2. Restart your AI tool, then test
git status  # Automatically rewritten to rtk git status
```

Hook-based agents rewrite Bash commands (e.g., `git status` -> `rtk git status`) before execution. Plugin-based agents, including Hermes, use their plugin API to rewrite commands before execution. The agent receives compact output without needing to call `rtk` explicitly.

**Important:** the hook only runs on Bash tool calls. Claude Code built-in tools like `Read`, `Grep`, and `Glob` do not pass through the Bash hook, so they are not auto-rewritten. To get RTK's compact output for those workflows, use shell commands (`cat`/`head`/`tail`, `rg`/`grep`, `find`) or call `rtk read`, `rtk grep`, or `rtk find` directly.

## How It Works

```
  Without rtk:                                    With rtk:

Four strategies applied per command type:

1. **Smart Filtering** - Removes noise (comments, whitespace, boilerplate)
2. **Grouping** - Aggregates similar items (files by directory, errors by type)
3. **Truncation** - Keeps relevant context, cuts redundancy
4. **Deduplication** - Collapses repeated log lines with counts

> **Does RTK break Claude's prompt cache?** No. RTK filters output once per command. The result is stored in history and cached normally on subsequent API calls, so the cache keeps working as expected. Smaller outputs also mean cheaper cache writes and reads. See [Troubleshooting](docs/guide/resources/troubleshooting.md#does-rtk-break-claudes-prompt-cache) for details.

## Commands

> Percentages below are **reductions in bash output**, not reductions in your bill. See [How Savings Work](#how-savings-work).

### Files
```bash
rtk ls .                        # Compact directory tree
rtk read file.rs                # Smart file reading
rtk read file.rs -l aggressive  # Signatures only (strips bodies)
rtk smart file.rs               # 2-line heuristic code summary
rtk find "*.rs" .               # Compact find results
rtk grep "pattern" .            # Grouped search results
rtk diff file1 file2            # Condensed diff (exit 0: identical, 1: different, 2: read error)
```

### Git
```bash
rtk git status                  # Compact status
rtk git log -n 10               # One-line commits
rtk git diff                    # Condensed diff
rtk git add                     # -> "ok"
rtk git commit -m "msg"         # -> "ok abc1234"
rtk git push                    # -> "ok main"
rtk git pull                    # -> "ok 3 files +10 -2"
```

### GitHub CLI
```bash
rtk gh pr list                  # Compact PR listing
rtk gh pr view 42               # PR details + checks
rtk gh issue list               # Compact issue listing
rtk gh run list                 # Workflow run status
```

### Test Runners
```bash
rtk jest                        # Jest compact (failures only)
rtk vitest                      # Vitest compact (failures only)
rtk playwright test             # E2E results (failures only)
rtk pytest                      # Python tests (-90%)
rtk phpt                        # PHP .phpt tests (run-tests.php, -99%)
rtk go test                     # Go tests (NDJSON, -90%)
rtk cargo test                  # Cargo tests (-90%)
rtk rake test                   # Ruby minitest (-90%)
rtk rspec                       # RSpec tests (JSON, -60%+)
rtk err <cmd> [args...]         # Direct argv execution, errors/warnings only
rtk test <cmd> [args...]        # Direct argv execution, failures only (-90%)
rtk err --shell fish '<script>' # Explicit shell for shell-specific syntax
```

### Build & Lint
```bash
rtk lint                        # ESLint grouped by rule/file
rtk lint biome                  # Supports other linters
rtk sqlfluff lint               # SQL linting (JSON, -75%)
rtk sqlfluff lint models/       # Lint a specific directory (pass path after `lint`)
rtk tsc                         # TypeScript errors grouped by file
rtk next build                  # Next.js build compact
rtk prettier --check .          # Files needing formatting
rtk cargo build                 # Cargo build (-80%)
rtk cargo clippy                # Cargo clippy (-80%)
rtk ruff check                  # Python linting (JSON, -80%)
rtk golangci-lint run           # Go linting (JSON, -85%)
rtk rubocop                     # Ruby linting (JSON, -60%+)
rtk mvnd verify                 # Maven Daemon (same filters as rtk mvn)
rtk sbt test                    # ScalaTest output (-90%)
rtk sbt compile                 # Compilation errors only (-75%)
rtk sbt run                     # Strip SBT preamble noise
```

### Package Managers
```bash
rtk pnpm list                   # Compact dependency tree
rtk uv run pytest               # Preserve uv env, keep program output
rtk pip list                    # Python packages (auto-detect uv)
rtk pip outdated                # Outdated packages
rtk bundle install              # Ruby gems (strip Using lines)
rtk prisma generate             # Schema generation (no ASCII art)
```

### Runtimes
```bash
rtk bun install                  # Strip progress and version lines
rtk bun test                     # Failures only (-90%)
rtk bun build                    # Errors only when writing to disk, else passthrough
rtk bunx tsc                     # Smart routing to tsc filter
rtk deno test                    # Failures only (-90%)
rtk deno lint                    # Strip download lines + tee recovery
rtk deno check                   # Strip download lines + tee recovery
```

### AWS
```bash
rtk aws sts get-caller-identity # One-line identity
rtk aws ec2 describe-instances  # Compact instance list
rtk aws lambda list-functions   # Name/runtime/memory (strips secrets)
rtk aws logs get-log-events     # Timestamped messages only
rtk aws cloudformation describe-stack-events  # Failures first
rtk aws dynamodb scan           # Unwraps type annotations
rtk aws iam list-roles          # Strips policy documents
rtk aws s3 ls                   # Truncated with recall recovery
```

### Containers
```bash
rtk docker ps                   # Compact container list
rtk docker images               # Compact image list
rtk docker logs <container>     # Deduplicated logs
rtk docker compose ps           # Compose services
rtk kubectl pods                # Compact pod list
rtk kubectl logs <pod>          # Deduplicated logs
rtk kubectl services            # Compact service list
rtk oc get pods                 # OpenShift pod summary
rtk oc get services             # OpenShift service list
rtk oc logs <pod>               # Deduplicated logs
```

### Infrastructure as Code
```bash
rtk pulumi preview              # Strip header/URL/duration noise
rtk pulumi up                   # Compact apply output
rtk pulumi destroy              # Compact destroy output
rtk pulumi refresh              # Drift summary
rtk pulumi stack                # Stack metadata (strips owner/timestamps)
```

### Data & Analytics
```bash
rtk json config.json            # Structure without values
rtk deps                        # Dependencies summary
rtk env -f AWS                  # Filtered env vars
rtk log app.log                 # Deduplicated logs
rtk curl <url>                  # Truncate + save full output
rtk wget <url>                  # Download, strip progress bars
rtk summary <cmd> [args...]     # Direct argv execution + heuristic summary
rtk run <cmd> [args...]         # Raw direct execution (no filtering/tracking)
rtk run -c '<script>'           # Shell string via sh (cmd on Windows)
rtk run --shell fish -c '<script>' # Explicit shell for shell-specific syntax
rtk proxy <command>             # Raw passthrough + tracking
```

`rtk run`, `rtk err`, `rtk test`, and `rtk summary` preserve positional
argument boundaries and do not expand globs, variables, or operators by
default. Use `-c` with `rtk run`, or `--shell <name>` with the filtered
wrappers, only when a command intentionally requires shell syntax. Pass an
explicit shell script as one quoted argument; RTK does not infer the parser
from `$SHELL` because the environment value may differ from the actual command
executor.

A program that cannot be run answers the way the shell used to: `127` with a
`command not found` line, `126` for a path that exists but is a directory or is
not executable.

**Windows note.** The `cmd /C` string these commands used to build also
searched the working directory and carried `cmd`'s builtins (`echo`, `dir`,
`type`, `set`, `copy`, `del`, …). Direct execution resolves through `%PATH%`
and `PATHEXT` only, so `rtk err dir`, `rtk summary echo hi`, and a tool sitting
in the current directory now need the explicit form: `rtk run -c 'dir'`, or
`rtk err --shell cmd 'echo hi'`. On Unix nothing equivalent is lost — `sh` does
not search `.`, and `echo`, `test` and `pwd` all exist as real binaries. One
more difference on both platforms: the child sees the resolved absolute path in
`argv[0]` where the shell used to pass the spelling as typed, which matters
only to multi-call binaries and to tools that print usage from `argv[0]`.

### Token Savings Analytics
```bash
rtk gain                        # Summary stats
rtk gain --graph                # ASCII graph (last 30 days)
rtk gain --history              # Recent command history
rtk gain --daily                # Day-by-day breakdown
rtk gain --all --format json    # JSON export for dashboards

rtk discover                    # Find missed savings opportunities
rtk discover --all --since 7    # All projects, last 7 days

rtk session                     # Show RTK adoption across recent sessions
```

## Global Flags

```bash
-u, --ultra-compact    # ASCII icons, inline format (further output reduction)
-v, --verbose          # Increase verbosity (-v, -vv, -vvv)
```

## Examples

**Directory listing:**
```
# ls -la (45 lines)                     # rtk ls (12 lines)
drwxr-xr-x  15 user staff 480 ...       my-project/
-rw-r--r--   1 user staff 1234 ...       +-- src/ (8 files)
...                                      |   +-- main.rs
                                         +-- Cargo.toml
```

**Git operations:**
```
# git push (15 lines)                    # rtk git push (1 line)
Enumerating objects: 5, done.             ok main
Counting objects: 100% (5/5), done.
Delta compression using up to 8 threads
...
```

**Test output:**
```
# cargo test (200+ lines on failure)     # rtk test cargo test (~20 lines)
running 15 tests                          FAILED: 2/15 tests
test utils::test_parse ... ok               test_edge_case: assertion failed
test utils::test_format ... ok              test_overflow: panic at utils.rs:18
...
```

## Auto-Rewrite Hook

The most effective way to use rtk. The hook transparently intercepts Bash commands and rewrites them to rtk equivalents before execution.

**Result**: 100% rtk adoption across all conversations and subagents, with no per-command context overhead.

**Scope note:** this only applies to Bash tool calls. Claude Code built-in tools such as `Read`, `Grep`, and `Glob` bypass the hook, so use shell commands or explicit `rtk` commands when you want RTK filtering there.

Simple quoted shell wrappers are also rewritten without changing the selected
shell:

```bash
bash -c "head foo && grep -R bar ."
# → bash -c "rtk read foo --head-lines 10 && rtk grep -R bar ."
```

This support is intentionally conservative: it covers exact `sh -c`,
`bash -c`, `zsh -c` and `fish -c` wrappers with a quoted portable script.
Because the wrapper names the shell, a `fish -c` script is read as fish: its
own syntax — `(cmd)` substitution, `and`/`or`/`end` control flow — defers
instead of being rewritten under POSIX assumptions:

```bash
fish -c 'git status; cargo test'      # → fish -c 'rtk git status; rtk cargo test'
fish -c 'git status; and cargo test'  # unchanged
```

Shell expansion in an outer double quote, additional shell options, redirects
to files, and nested wrappers pass through unchanged.

### Setup

```bash
rtk init -g                 # Install hook + RTK.md (recommended)
rtk init -g --opencode      # Claude setup + OpenCode plugin
rtk init -g --auto-patch    # Non-interactive (CI/CD)
rtk init -g --hook-only     # Hook only, no RTK.md
rtk init --show             # Verify installation
```

After install, **restart Claude Code**.

By default `RTK.md` says nothing about RTK itself. Set `[awareness] level = "high"` in `config.toml` to let the agent know `rtk gain` / `rtk proxy`, or `"full"` for an agent without hook support (or not yet supported by RTK) so it prefixes `rtk` itself — see [Configuration](docs/guide/getting-started/configuration.md#awareness-level).

## Windows

RTK works fully on native Windows. Since **v0.37.2** the auto-rewrite hook runs as a **native binary command** (`rtk hook claude`) — no Unix shell, bash, or jq required — so commands are rewritten transparently on Command Prompt, PowerShell, and Windows Terminal, just like on Linux and macOS.

### Native Windows (manual install)

Prefer [`winget`](#winget-windows) if you can — it handles PATH for you.

```powershell
# 1. Download and extract rtk-x86_64-pc-windows-msvc.zip from releases
# 2. Add rtk.exe to your PATH (e.g. C:\Users\<you>\.local\bin)
# 3. Initialize — installs the native binary hook
rtk init -g
```

**Upgrading from an older install?** Before v0.37.2, `rtk init -g` on native Windows fell back to CLAUDE.md injection and registered no hook. Re-run `rtk init -g` and answer `y` when it asks to patch `settings.json` (or pass `--auto-patch`) to install the native binary hook.

**Prerequisites**: some filters shell out to [ripgrep](https://github.com/BurntSushi/ripgrep) (`rg`). Install it and keep it on your PATH (e.g. `winget install BurntSushi.ripgrep.MSVC`) to avoid `Binary 'rg' not found on PATH` warnings.

**Important**: Do not double-click `rtk.exe` — it is a CLI tool that prints usage and exits immediately. Always run it from a terminal (Command Prompt, PowerShell, or Windows Terminal).

### WSL

[WSL](https://learn.microsoft.com/en-us/windows/wsl/install) also works and behaves exactly like Linux:

```bash
# Inside WSL
curl -fsSL https://raw.githubusercontent.com/rtk-ai/rtk/refs/heads/master/install.sh | sh
rtk init -g
```

| Feature | Native Windows | WSL |
|---------|----------------|-----|
| Filters (cargo, git, etc.) | Full | Full |
| Auto-rewrite hook | Yes (native binary) | Yes |
| `rtk init -g` | Hook mode | Hook mode |
| `rtk gain` / analytics | Full | Full |

## Supported AI Tools

RTK supports 18 AI coding tools. Each integration rewrites shell commands to `rtk` equivalents, reducing the bash output the agent reads where the agent supports command interception.

| Tool | Install | Method |
|------|---------|--------|
| **Claude Code** | `rtk init -g` | PreToolUse hook (native binary) |
| **GitHub Copilot (VS Code)** | `rtk init -g --copilot` | PreToolUse hook — transparent rewrite |
| **GitHub Copilot CLI** | `rtk init -g --copilot` | PreToolUse deny-with-suggestion (CLI limitation) |
| **Cursor** | `rtk init -g --agent cursor` | preToolUse hook (hooks.json) |
| **Gemini CLI** | `rtk init -g --gemini` | BeforeTool hook |
| **Codex** | `rtk init -g --codex` | PreToolUse hook (`updatedInput`) + AGENTS.md |
| **Windsurf** | `rtk init -g --agent windsurf` | .windsurfrules (project-scoped) |
| **Cline / Roo Code** | `rtk init --agent cline` | .clinerules (project-scoped) |
| **OpenCode** | `rtk init -g --opencode` | Plugin TS (execute.before / tool.execute.before), needs 1.18.29 or newer |
| **OpenClaw** | `openclaw plugins install ./openclaw` | Plugin TS (before_tool_call) |
| **Pi** | `rtk init -g --agent pi` (global) | TypeScript extension (tool_call) |
| **Oh My Pi (OMP)** | `rtk init -g --agent omp` (global) / `rtk init --agent omp` (project) | TypeScript extension (tool_call, shared with Pi) |
| **Hermes** | `rtk init --agent hermes` | Python plugin adapter (terminal command mutation via `rtk rewrite`) |
| **Mistral Vibe** | `rtk init -g --agent vibe` | `pre_tool` hook (hooks.toml) |
| **Kilo Code** | `rtk init --agent kilocode` | .kilocode/rules/rtk-rules.md (project-scoped) |
| **Google Antigravity** | `rtk init --agent antigravity` / `rtk init -g --agent antigravity` | .agents/plugins/rtk/ (project) or ~/.gemini/config/plugins/rtk/ (global): plugin.json, hooks.json, rules/AGENTS.md |
| **Kimi AI** | `rtk init --agent kimi` | AGENTS.md (project-scoped) |
| **Factory Droid** | `rtk init -g --agent droid` (or per-project) | PreToolUse hook in `~/.factory/hooks.json` (matcher `Execute`) |
| **Trae** | `rtk init --agent trae` | Native `PreToolUse` hook in `.trae/hooks.json` (`RunCommand`) |
| **Trae (global)** | `rtk init -g --agent trae` | `~/.trae/hooks.json`, plus `~/.trae-cn/hooks.json` when that directory exists |

For per-agent setup details, override controls, and graceful degradation, see the [Supported Agents guide](https://www.rtk-ai.app/guide/getting-started/supported-agents). The Hermes plugin source and tests live in `hooks/hermes/`; installed Hermes runtime files still live under `~/.hermes/plugins/rtk-rewrite/`.

## Configuration

`~/.config/rtk/config.toml` (macOS: `~/Library/Application Support/rtk/config.toml`):

```toml
[hooks]
exclude_commands = ["curl", "playwright"]  # skip rewrite for these (matches `npx playwright` too)
suppress_hook_warning = false                # suppress the missing-hook warning only

[retriever]
mode = "sqlite"         # sqlite (default) | tee (legacy files) | disabled
```

When a command fails, RTK saves the full unfiltered output so the LLM can recall it without re-executing:

```
FAILED: 2/15 tests
[full output: rtk recall 3f9c2a81d4e7]
```

Legacy `[tee]` config sections are still honored: they map to `mode = "tee"` (file-based recovery on failure/truncation), or `mode = "disabled"` if you had `enabled = false`. The former `mode = "always"` keeps its behaviour and maps to `tee_on_success = true`, which archives successful runs too. The sqlite store stays failure/truncation-driven.

For the full config reference (all sections, env vars, per-project filters), see the [Configuration guide](https://www.rtk-ai.app/guide/getting-started/configuration).

### Uninstall

```bash
rtk init -g --uninstall     # Remove hook, RTK.md, settings.json entry
cargo uninstall rtk          # Remove binary
brew uninstall rtk           # If installed via Homebrew
```

## Documentation

- **[rtk-ai.app/guide](https://www.rtk-ai.app/guide)** — full user guide (installation, supported agents, what gets optimized, analytics, configuration, troubleshooting)
- **[INSTALL.md](INSTALL.md)** — detailed installation reference
- **[ARCHITECTURE.md](docs/contributing/ARCHITECTURE.md)** — system design and technical decisions
- **[CONTRIBUTING.md](CONTRIBUTING.md)** — contribution guide
- **[SECURITY.md](SECURITY.md)** — security policy

## Privacy & Telemetry

RTK can collect **anonymous, aggregate usage metrics** once per day. Telemetry is **disabled by default** and requires **explicit opt-in consent** (GDPR Art. 6, 7) during `rtk init` or via `rtk telemetry enable`. This data helps us build a better product: identifying which commands need filters, which filters need improvement, and how much value RTK delivers. For the full list of fields, data handling, and contributor guidelines, see **[docs/TELEMETRY.md](docs/TELEMETRY.md)**.

**What is collected and why:**

| Category | Data | Why |
|----------|------|-----|
| Identity | Salted device hash (SHA-256, not reversible) | Count unique installations without tracking individuals |
| Environment | RTK version, OS, architecture, install method | Know which platforms to support and test |
| Usage volume | Command count (24h), total commands, estimated tokens saved (24h/30d/total) | Measure adoption and value delivered |
| Quality | Top 5 passthrough commands (0% reduction), parse failure count, commands with <30% reduction | Identify missing filters and weak ones to improve |
| Ecosystem | Command category distribution (e.g. git 45%, cargo 20%, js 15%) | Prioritize filter development for popular ecosystems |
| Retention | Days since first use, active days in last 30 | Understand engagement and detect churn |
| Adoption | AI agent hook type (claude/gemini/codex), custom TOML filter count | Track integration coverage and DSL adoption |
| Configuration | Whether config.toml exists, number of excluded commands, project count | Understand user maturity and customization patterns |
| Features | Usage counts for meta-commands (gain, discover, proxy, verify) | Know which RTK features are valued vs unused |
| Economics | Estimated USD value, derived from the estimated tokens saved and a fixed internal constant | Quantify the value RTK provides to users |

All data is **aggregate counts or anonymized command names** (first 3 words, no arguments). Top commands report only tool names (e.g. "git", "cargo"), never full command lines.

**What is NOT collected:** source code, file paths, command arguments, secrets, environment variables, personal data, or repository contents.

**Manage telemetry:**
```bash
rtk telemetry status     # Check current consent state
rtk telemetry enable     # Give consent (interactive prompt)
rtk telemetry disable    # Withdraw consent — stops all collection immediately
rtk telemetry forget     # Withdraw consent + delete all local data + request server-side erasure
```

**Override via environment:**
```bash
export RTK_TELEMETRY_DISABLED=1   # Blocks telemetry regardless of consent
```

## Star History

## StarMapper

## Core team

- **Patrick Szymkowiak** — Founder
  [GitHub](https://github.com/pszymkowiak) · [LinkedIn](https://www.linkedin.com/in/patrick-szymkowiak/)
- **Florian Bruniaux** — Core contributor
  [GitHub](https://github.com/FlorianBruniaux) · [LinkedIn](https://www.linkedin.com/in/florian-bruniaux-43408b83/)
- **Adrien Eppling** — Core contributor
  [GitHub](https://github.com/aeppling) · [LinkedIn](https://www.linkedin.com/in/adrien-eppling/)
- **Nicolas Le Cam** — Core contributor
  [Github](https://github.com/kush) · [LinkedIn](https://www.linkedin.com/in/nicolas-le-cam-386387160/)
- **Takayuki Maeda** — Core contributor
  [GitHub](https://github.com/TaKO8Ki) · [LinkedIn](https://www.linkedin.com/in/tako8ki/)

## Contributing

Contributions welcome! Please open an issue or PR on [GitHub](https://github.com/rtk-ai/rtk).

Join the community on [Discord](https://discord.gg/RySmvNF5kF).

## License

Apache License 2.0 - see [LICENSE](LICENSE) for details.

## Disclaimer

See [DISCLAIMER.md](DISCLAIMER.md).

Repository info

Default branch: develop
Latest version: v0.51.0
Created: 2026-01-22
Last activity: 2026-10-13
License: Apache-2.0
Open issues: 1.5k
Watchers: 216

Topics

agentic-coding ai-coding anthropic claude-code cli command-line-tool cost-reduction developer-tools llm open-source productivity rust token-optimization

Contributors

aeppling

639 contributions

KuSh

476 contributions

pszymkowiak

218 contributions

FlorianBruniaux

179 contributions

github-actions[bot]

65 contributions