feature

name	feature
description	Implement a new capability or enhancement in this repo. Use when the user asks to add a feature, implement a capability, ship an enhancement, or build new terfyn/YAML behavior.

Feature

Workflow

1. Clarify scope — Read docs/DESIGN_DOC.md and nearby code before coding. Prefer the smallest change that meets the ask.
2. Implement — Match patterns in the same package (cmd/terfyn, internal/*). Avoid unrelated refactors.
3. Tests — Add or update unit/integration coverage. For intentional CLI output changes: GO_UPDATE_GOLDEN=1 go test ./internal/cli/... -run TestGolden_
4. Verify — Run make ci (verify-fmt, vet, test). Fix failures before claiming done.
5. Changelog — If user-visible or breaking, add an entry under Unreleased in CHANGELOG.md.
6. Pull request — When opening a PR, read .github/PULL_REQUEST_TEMPLATE.md and use that exact structure for the body (HEREDOC with gh pr create). Fill Summary, Test plan, and Checklist. Do not invent a different format.

Layout reminders

Area	Path
CLI entry	cmd/terfyn
Commands / goldens	internal/cli
Spec / project load	internal/spec, internal/project
Plan / apply / engine / policy	internal/plan, internal/apply, internal/engine, internal/policy
E2E	test/integration