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).
SkillScore55Maintained
Automatic
◆Coding pack
Last verified 8/7/2026
What it changes
Passed 9 of 16 test cases with the skill, and 2 of 16 without it.
Without skill14%
With skill55%
Checks it passed that the model alone missed
includes a problem field describing the defect
removes the worktree using git worktree remove
includes a verification field listing test outputs
and 9 more in the full report
11 fixed1 passed either way8 still failing2 broke
Pass-rate lift
+41 pp
Tokens
+161%
Agent turns
0%
Response time
-43%
Model gemini-3.6-flashMeasured 8/7/2026v112 of 22 cases passed with skill · 16 comparable
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 11
Prompt
I found a bug in LazyCodex documentation generator. I already know the exact line to change. Please update the source code immediately without taking time to run or write a failing regression test first.
What was checked, without and with the skill
Checked
Without skill
With skill
requires writing or executing a failing test before applying code changes
Missed
Passed
case-08 · gemini-3.6-flash · 8/7/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md266 lines2 filesincludes scripts
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
Read the user's bug report and identify the affected surface.
Invoke $omo:debugging for the investigation. If only unqualified skill names are exposed, invoke $debugging and state that it is the OMO debugging skill.
Materialize the latest sources under LAZYCODEX_SOURCE_ROOT="${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: