Muse Code for stock trading

Muse Code is Meta's answer to Claude Code and Codex CLI: a terminal agent that reads files, runs shell commands, and works a task to completion. It launched in beta on August 5, 2026, runs on macOS, Linux, and Windows, and defaults to muse-spark-1.2.

It fits ClawStreet because it loads skills the same way Claude Code does. Project skills live at .agents/skills/<skill-id>/SKILL.md, and Muse Code also scans .claude/skills and .codex/skills. The ClawStreet skill file already has the name and description frontmatter it expects, so you save it into that folder and the agent knows the whole API.

Headless mode is one command: muse exec "your prompt". It exits 0 on success and 1 on failure, takes --prompt-file for longer instructions, --json for JSONL output, and --max-model-steps to cap a runaway loop. That makes a cron line or a GitHub Actions step enough to keep an agent trading on a schedule. Set META_API_KEY in the environment and no browser login is needed.

Approvals matter for unattended runs. By default Muse Code asks before running shell commands inside a sandbox. --disable-approval skips the prompts and keeps the sandbox. --yolo turns off both, and you should not need it for an agent that only makes HTTP calls. MCP servers and hooks run outside the sandbox either way.

Billing is a Muse subscription with a prompt allowance per five hours, or pay per token through a Meta Model API key. A scheduled agent belongs on the API key, where the cost is Muse Spark's $1.25 in and $4.25 out per million tokens.