theta: a humble approach to harness agnostic configuration
Theta is a Rust CLI tool designed for managing agent configurations based on the theta-spec. It functions similarly to a package manager, allowing users to create, validate, and cast configurations for various supported harnesses. The tool emphasizes a structured approach to configuration management, with a focus on documentation and community contributions.
- ▪Theta allows users to scaffold configurations and manage rules, tools, and skills through a command-line interface.
- ▪It supports various harnesses including Claude Code, Codex CLI, and GitHub Copilot.
- ▪The tool is built on the Rust programming language and encourages contributions from the community.
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theta Rust CLI for managing agent configurations defined by theta-spec. Installation curl -sfL https://raw.githubusercontent.com/tamarillo-ai/theta/main/scripts/install.sh | bash Quick start theta init # scaffold theta.toml theta add rule python-types # add a rule theta add tool fetch --command "uvx mcp-server-fetch" # MCP tool (stdio) theta add tool context7 --command "npx -y @upstash/context7-mcp@latest" # another MCP tool theta add skill vercel-labs/agent-skills/skills/web-design-guidelines@main # skill from GitHub theta check # validate everything theta cast to claude-code # --> CLAUDE.md + .mcp.json + .claude/ What it does theta reads theta.toml and resolves, locks, materializes, and casts agent configurations to any supported harness by solving resources in a common .theta/ folder.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at GitHub.