YeonGyu-Kim 84b77ece4d fix(cli): pipe stdin to prompt when no args given (suppress REPL on pipe)
When stdin is not a terminal (pipe or redirect) and no prompt is given on
the command line, claw was starting the interactive REPL and printing the
startup banner, then consuming the pipe without sending anything to the API.

Fix: in parse_args, when rest.is_empty() and stdin is not a terminal, read
stdin synchronously and dispatch as CliAction::Prompt instead of Repl.
Empty pipe still falls through to Repl (interactive launch with no input).

Before: echo 'hello' | claw  -> startup banner + REPL start
After:  echo 'hello' | claw  -> dispatches as one-shot prompt

159 CLI tests pass, fmt clean.
2026-04-09 20:36:14 +09:00
2026-04-07 15:52:30 +09:00

Claw Code

ultraworkers/claw-code · Usage · Rust workspace · Parity · Roadmap · UltraWorkers Discord

Star history for ultraworkers/claw-code

Claw Code

Claw Code is the public Rust implementation of the claw CLI agent harness. The canonical implementation lives in rust/, and the current source of truth for this repository is ultraworkers/claw-code.

Important

Start with USAGE.md for build, auth, CLI, session, and parity-harness workflows. Make claw doctor your first health check after building, use rust/README.md for crate-level details, read PARITY.md for the current Rust-port checkpoint, and see docs/container.md for the container-first workflow.

Current repository shape

  • rust/ — canonical Rust workspace and the claw CLI binary
  • USAGE.md — task-oriented usage guide for the current product surface
  • PARITY.md — Rust-port parity status and migration notes
  • ROADMAP.md — active roadmap and cleanup backlog
  • PHILOSOPHY.md — project intent and system-design framing
  • src/ + tests/ — companion Python/reference workspace and audit helpers; not the primary runtime surface

Quick start

Note

cargo install clawcode will not work — this package is not published on crates.io. Build from source as shown below.

# 1. Clone and build
git clone https://github.com/ultraworkers/claw-code
cd claw-code/rust
cargo build --workspace

# 2. Set your API key (Anthropic API key — not a Claude subscription)
export ANTHROPIC_API_KEY="sk-ant-..."

# 3. Verify everything is wired correctly
./target/debug/claw doctor

# 4. Run a prompt
./target/debug/claw prompt "say hello"

Note

Windows (PowerShell): the binary is claw.exe, not claw. Use .\target\debug\claw.exe or run cargo run -- prompt "say hello" to skip the path lookup.

Note

Auth: claw requires an API key (ANTHROPIC_API_KEY, OPENAI_API_KEY, etc.) — Claude subscription login is not a supported auth path.

Run the workspace test suite:

cd rust
cargo test --workspace

Documentation map

Ecosystem

Claw Code is built in the open alongside the broader UltraWorkers toolchain:

Ownership / affiliation disclaimer

  • This repository does not claim ownership of the original Claude Code source material.
  • This repository is not affiliated with, endorsed by, or maintained by Anthropic.
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Readme 22 MiB
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Python 3.5%
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