1a8f73da01
When claw --output-format json hits an error, the error was previously
printed as plain prose to stderr, making it invisible to downstream tooling
that parses JSON output. Now:
{"type":"error","error":"api returned 401 ..."}
Detection: scan argv at process exit for --output-format json or
--output-format=json. Non-JSON error path unchanged. 156 CLI tests pass.
Claw Code
ultraworkers/claw-code · Usage · Rust workspace · Parity · Roadmap · UltraWorkers Discord
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.mdfor build, auth, CLI, session, and parity-harness workflows. Makeclaw doctoryour first health check after building, userust/README.mdfor crate-level details, readPARITY.mdfor the current Rust-port checkpoint, and seedocs/container.mdfor the container-first workflow.
Current repository shape
rust/— canonical Rust workspace and theclawCLI binaryUSAGE.md— task-oriented usage guide for the current product surfacePARITY.md— Rust-port parity status and migration notesROADMAP.md— active roadmap and cleanup backlogPHILOSOPHY.md— project intent and system-design framingsrc/+tests/— companion Python/reference workspace and audit helpers; not the primary runtime surface
Quick start
Note
cargo install clawcodewill 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, notclaw. Use.\target\debug\claw.exeor runcargo 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
USAGE.md— quick commands, auth, sessions, config, parity harnessrust/README.md— crate map, CLI surface, features, workspace layoutPARITY.md— parity status for the Rust portrust/MOCK_PARITY_HARNESS.md— deterministic mock-service harness detailsROADMAP.md— active roadmap and open cleanup workPHILOSOPHY.md— why the project exists and how it is operated
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.