Lands the process decision: all changes go through Tangled pull requests created with the tang CLI; main is never pushed directly.
- AGENT.md: the non-negotiables and the worktree hard rule now end at a PR (push branch, tang pr create), not a push to main.
- knowledge/workflows.md: git conventions replace 'push main directly; no PR flow currently' with the full tang PR flow — rebase onto origin/main first (the CLI's behind-check prompt is interactive and dies headless), push the branch, create the PR with a body file. PR bodies follow commit rules: no AI attribution, Defense rides along for behavior-changing work.
- knowledge/development-style.md: working-loop step 7 ends in a PR.
- DESIGN.md decisions log: '2026-07-06 — PRs are the norm.'
Docs/process only; no game behavior changes.