CodCatDev
CodCatDev'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 @CodCatDev 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 McWire corpus
CodCatDev/McWire: Fast and lightweight Minecraft packet decoder/encoder written in Nim
- Look up how McWire implements minecraft, networking, nim, with answers cited to file and line.
- Reuse a worked example: the commit “McWire, Protocol, Packets” (6 files).
- Answer from McWire's real source instead of memory (Networking, protocols and serialisation).
- Where does McWire handle “McWire, Protocol, Packets”?
- How does McWire implement minecraft?
- What does src do in McWire?
Search the GitHub repository CodCatDev/McWire with XERJ (https://hub.xerj.org/corpus/codcatdev--mcwire). 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/CodCatDev/McWire McWire && git -C McWire checkout cd1ce990dc3bf884106f064e8ceb86f3be26434a 3. Start a local node and leave it running: xerj --insecure --data-dir ./xerj-data 4. xerj autoindex ./McWire --url http://127.0.0.1:9200 --prefix mcwire --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: MIT. Keep the copyright notice and credit the authors.
corpus codcatdev--mcwire · Networking, protocols and serialisation
Related corpora: quinn, libuv, NLipatov/TunGo, catalinfl/adler
Case study: reference coding for agents
Selected work
CodCatDev/McWire
Fast and lightweight Minecraft packet decoder/encoder written in Nim
The corpus is the whole repository at the pinned commit, not only the files of the selected commit.
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/CodCatDev)
Included with the author's permission (email, 2026-10-30), under each repository's own licence, with attribution. Own more repositories? Sign in with GitHub and add them. Want something removed? Reply to the email, withdraw it on /add, or open an issue on xerj-org/xerj.