- [Git conventions](git_conventions.md) — never commit to main, always a branch; EVERY commit is `type(<TICKET-ID>): summary` using the live ticket, overrides repo's bare-prefix style; watch for scope decay on follow-up commits; grep to verify before pushing
- [Git commit signing](git_commit_signing.md) — signs in-sandbox via ssh-agent (allowAllUnixSockets + inlined pubkey); sig=N without allowedSignersFile is cosmetic, still signed
- [Review and comments workflow](workflow_review_and_comments.md) — show PR body and non-trivial Jira comments before posting; terse IaC code comments; PR body content rules
- [Nix shell tooling](nix_shell_tooling.md) — any nixpkgs tool runs ad hoc via `nix run`/`nix shell nixpkgs#<pkg>`; a missing command is never a dead end