Read AGENTS.md. It is the canonical agent-facing ruleset for this
repo: code quality bar, commands, CI gates, issue/PR-comment conventions, git
workflow, and contributor attribution.
The Rust-scoped rules in src-rust/.claude/CLAUDE.md extend these; when the two
disagree, the rule closer to the code wins. There is no separate Claude-only
workflow at the repo root — follow AGENTS.md.