/lcx-contribute-bug-fix

name: lcx-contribute-bug-fix
description: "Contribute a verified bug fix for LazyCodex, lazycodex-ai, omo-codex, bundled Codex skills, or upstream Codex CLI bugs. Opens a fork PR only for upstream openai/codex; LazyCodex-owned defects become a verified-fix issue on code-yeongyu/lazycodex (never a PR — that repo is a generated distribution mirror). Use when the user asks to fix a bug, contribute a bug fix, contribute to fix bug, open a PR for a bug, or debug and PR a LazyCodex/Codex defect."
metadata:
  short-description: Contribute verified LazyCodex or Codex bug fixes

lcx-contribute-bug-fix

Use this skill to debug a concrete LazyCodex or Codex defect, implement the smallest correct fix in a fresh temporary workspace, and deliver it. Work in English, keep the body short, and support every claim with runtime or source evidence.

Route ownership the same way as `$lcx-report-bug`, but the deliverable differs by target:

• `code-yeongyu/lazycodex` for LazyCodex, lazycodex-ai, omo-codex, bundled skills, hooks, MCP wiring, installer behavior, marketplace sync, docs, or packaging. Deliverable: a verified-fix issue with the patch embedded. NEVER open a PR or push a branch against this repo — its contents are regenerated from the source tree on every release, so PRs there cannot be merged and will be closed.
• `openai/codex` for upstream Codex CLI bugs that reproduce without LazyCodex or come from Codex core behavior. Deliverable: a PR from a fork.

Required Outcome

For `openai/codex`, create a fork PR that includes:

• a focused branch from a fresh `${TMPDIR:-/tmp}` clone/worktree
• reproduction logs from before the fix
• the smallest implementation that fixes the defect
• verification logs from after the fix
• apply `lazycodex-generated` when label management is available
• the required LazyCodex footer tag `Tag: lazycodex-generated`
• cleanup of temporary worktrees and clones

For `code-yeongyu/lazycodex`, create an issue (never a PR) that includes:

• reproduction logs from before the fix
• the root cause with source evidence
• the verified patch as a unified diff, produced and tested in a fresh `${TMPDIR:-/tmp}` clone/worktree
• verification logs from after the fix
• the `lazycodex-generated` label and the footer tag `Tag: lazycodex-generated`
• cleanup of temporary worktrees and clones

Required Workflow

1. Read the user's bug report and identify the affected surface. 2. Invoke `$omo:debugging` for the investigation. If only unqualified skill names are exposed, invoke `$debugging` and state that it is the OMO debugging skill. 3. Materialize the latest sources under `LAZYCODEX_SOURCE_ROOT="${LAZYCODEX_SOURCE_ROOT:-${TMPDIR:-/tmp}/lazycodex-sources}"`, then decide the target repository. Sync both checkouts on every run and compare them before choosing. Validate cached checkouts before reuse so an incomplete `.git` directory cannot route the fix to the wrong repo:

LAZYCODEX_SOURCE_ROOT="${LAZYCODEX_SOURCE_ROOT:-${TMPDIR:-/tmp}/lazycodex-sources}"
mkdir -p "$LAZYCODEX_SOURCE_ROOT"

valid_source_checkout() {
  DEST="$1"
  git -C "$DEST" rev-parse --is-inside-work-tree >/dev/null 2>&1 &&
    git -C "$DEST" config --get remote.origin.url >/dev/null 2>&1
}

recover_corrupt_source_checkout() {
  DEST="$1"
  if [ -e "$DEST" ] && ! valid_source_checkout "$DEST"; then
    QUARANTINED="$DEST.corrupt.$(date +%Y%m%d%H%M%S)"
    mv "$DEST" "$QUARANTINED"
    echo "Moved corrupt source cache $DEST to $QUARANTINED" >&2
  fi
}

sync_latest_source() {
  REPO="$1"; DEST="$2"
  recover_corrupt_source_checkout "$DEST"
  if [ ! -d "$DEST" ]; then
    gh repo clone "$REPO" "$DEST" -- --depth=1 \
      || git clone --depth=1 "https://github.com/$REPO" "$DEST"
  fi
  if ! valid_source_checkout "$DEST"; then
    echo "Source cache $DEST is not a usable git checkout after clone" >&2
    return 1
  fi
  git -C "$DEST" remote set-url origin "https://github.com/$REPO.git" >/dev/null 2>&1 || true
  DEFAULT_BRANCH="$(git -C "$DEST" remote show origin | sed -n '/HEAD branch/s/.*: //p')"
  if [ -z "$DEFAULT_BRANCH" ]; then
    DEFAULT_BRANCH="$(git -C "$DEST" symbolic-ref --short refs/remotes/origin/HEAD 2>/dev/null | sed 's#^origin/##')"
  fi
  if [ -z "$DEFAULT_BRANCH" ]; then
    echo "Could not determine default branch for $REPO in $DEST" >&2
    return 1
  fi
  git -C "$DEST" fetch --depth=1 origin "$DEFAULT_BRANCH"
  git -C "$DEST" checkout -B "$DEFAULT_BRANCH" FETCH_HEAD
}
sync_latest_source code-yeongyu/lazycodex "$LAZYCODEX_SOURCE_ROOT/lazycodex-source"
sync_latest_source openai/codex "$LAZYCODEX_SOURCE_ROOT/openai-codex-source"

4. Create a fresh temporary clone and branch under `${TMPDIR:-/tmp}`. Do not modify the user's current repository for the target fix unless the current repository is itself the requested target and the user explicitly asked for local edits.

TARGET_REPO="code-yeongyu/lazycodex" # or openai/codex
WORK_ROOT="$(mktemp -d "${TMPDIR:-/tmp}/lazycodex-fix-XXXXXX")"
gh repo clone "$TARGET_REPO" "$WORK_ROOT/repo" -- --depth=1
cd "$WORK_ROOT/repo"
BASE_BRANCH="$(git remote show origin | sed -n '/HEAD branch/s/.*: //p')"
git fetch origin "$BASE_BRANCH" --depth=1
BRANCH_NAME="lazycodex/bug-fix-<short-slug>"
git worktree add "$WORK_ROOT/worktree" -b "$BRANCH_NAME" "origin/$BASE_BRANCH"
cd "$WORK_ROOT/worktree"

If `gh` cannot clone, use `git clone --depth=1 "https://github.com/$TARGET_REPO" "$WORK_ROOT/repo"` and continue with the same worktree flow.

5. Reproduce the bug in the worktree through the real surface. Save exact command output to `${TMPDIR:-/tmp}/lazycodex-fix-<short-slug>-repro.log`. 6. Write or update a failing regression test before production changes. Confirm it fails for the bug, not for a missing fixture or typo. 7. Implement the smallest correct fix. Avoid refactors unless the fix cannot be made safely without one. 8. Run the regression test, adjacent tests, and the smallest real-surface QA command that proves the user-visible behavior change