upgrade-chief

Upgrade the Chief Agent Framework to the version specified in the arguments.

Arguments

The first argument is the target version (branch or tag). Optional.

• No argument → upgrade to the latest stable release (highest semver tag). Find it by running git ls-remote --tags https://github.com/thaitype/chief-agent-framework.git, strip refs/tags/, ignore ^{} entries, and pick the highest semver version.
• canary → latest canary branch (active development, unreleased)
• v1.0.0, v2.0.0, etc. → specific tagged version

Steps

0. Detect coding agent and install mode

Before cloning, detect which coding agent the user has set up by checking directories:

1. Check if .claude/agents/ exists → suggest Claude Code
2. Check if .github/agents/ exists with agent files → suggest Copilot
3. If only .agents/ exists (no coding-agent-specific directory) → suggest OpenCode (or unknown agent)