Reactive-Resume/docs/execution/briefs/implement-plan-09.md

Implement plan 09: user-controlled Git backup documentation

Read entire approved plan first from local planning checkout only when its HEAD equals a2557b2ad40e06e1e63eb655f286e6a78fe6bf0d; otherwise use pinned git show fallback below. Then read current worktree AGENTS.md, referenced domain/issue instructions, relevant ADRs, /Users/amruth/.codex/RTK.md, and /Users/amruth/.agents/skills/documentation-writer/SKILL.md. Plan supplies document type, audience, goal, scope, and approved structure; do not pause for routine outline approval. Portable fallback: fetch PR #3455 and use git show a2557b2ad40e06e1e63eb655f286e6a78fe6bf0d:plans/09-external-version-backup.md.

Do not spawn subagents. Do not touch coordinator ledger or another worktree. Do not merge, mutate issues, push, or create PR.

Required execution:

• Confirm clean worktree, fetch current origin/main, rename branch codex/issue-2705-git-backup-docs, run exact drift command, fetch live #2705 body/comments/state/linked PRs, and run root intent discovery before edits.
• Revalidate current export shapes and history semantics from exact source/tests. Stop if exporter lacks required document types or synthetic restore loses content; do not broaden into runtime fixes.
• Modify only docs/guides/exporting-your-resume.mdx and docs/guides/undoing-changes-and-version-history.mdx.
• Document single-resume JSON, independent cover-letter JSON, and account archive differences; stable filenames; image URL availability; private-data/repository-visibility warning; local-only Git workflow; non-destructive import-as-new recovery; rolling in-app versions versus owner-managed Git. Correct planning prose before publication: every user-facing code block must use ordinary git init, git add -- ..., git diff, git commit, and git show. Never publish agent-only rtk proxy git commands. No automatic sync, credentials, remote URL, git push, whole-account restore promise, or new product UI.
• Use only synthetic data. Run API export/version tests specified by plan. Validate single-resume import round-trip using existing synthetic fixtures/tests or a bounded disposable test; never use private data.
• Execute command sequence in mktemp -d, staging only resume.json and cover-letter.json; show changed visible field in git diff. Executor shell may wrap validation with rtk proxy, but copied documentation commands must remain plain Git. Do not modify global Git config if identity missing; record limitation.
• Run plan's focused rg, markdown lint, git diff --check, and two-file name-only gate. Self-review every acceptance item.
• Commit with normal message. Leave branch local for independent review.

Write report .orchestration/plan-09-implementation.md: verified facts vs uncertainty, live state, drift, exact commit/files, commands/results, fixture details, skipped gates, risks, issue coverage, PR status (not created). Final response: status, commit, one-line tests, report path, concerns; at most ten lines.