Everton Mendonça
Everton Mendonça's work was selected for the XERJ Corpus Hub, the open reference memory AI coding agents search before they write code. When an agent meets the same problem, it gets this implementation back as a worked example, with the author and the repository attached.
Totals across every corpus @evertonmj appears in; a commit selected for two corpora counts once. Files and lines count the selected commits; each corpus indexes the whole repository at its pinned commit.
What an agent can do with the codex corpus
evertonmj/codex: A fast, lightweight embedded key-value database for Go: encrypted, crash-safe, concurrent, and built for simple persistent storage
- Reuse a worked example: the commit “Refactor project structure: rename `codex/src` to `app`, update docum…” (10 files · Go).
- Answer from codex's real Go source instead of memory (Databases and storage engines).
- What does app/storage do in codex?
Search the GitHub repository evertonmj/codex with XERJ (https://hub.xerj.org/corpus/evertonmj--codex). Run these in a shell, in order, and check each result before the next: 1. xerj --help (success: it prints usage). If xerj is missing: curl -fsSL https://xerj.org/get | sh 2. git clone https://github.com/evertonmj/codex codex && git -C codex checkout 44a4b93fb632f46fc88167716e7f471738bf5806 3. Start a local node and leave it running: xerj --insecure --data-dir ./xerj-data 4. xerj autoindex ./codex --url http://127.0.0.1:9200 --prefix codex --progress plain 5. xerj autoindex map --url http://127.0.0.1:9200 Then answer my question from the indexed files and cite the ax_path of every hit. Query syntax: https://xerj.org/llms.txt Licence: MPL-2.0. Read it for the approach only, do not copy code.
corpus evertonmj--codex · Databases and storage engines
Related corpora: arroyo, xerj-columnar, annoy, dragonboat
Case study: reference coding for agents
Selected work
evertonmj/codex
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
Not installable yet: this corpus is not in the hub registry until its licence review passes, so xerj corpus add and xerj ask cannot fetch it. It becomes installable when this card says live in the hub.
Sign in with GitHub or Hugging Face to see more: every selected commit in full (commit date, every folder, licence review state, pin) and the pack builds of each corpus.
[](https://hub.xerj.org/contributors/evertonmj)
Included with the author's permission (email, 2026-10-23), under each repository's own licence, with attribution. Want it removed? Reply to the email or open an issue on xerj-org/xerj.