Thomas Vandahl
Thomas Vandahl'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 @tvand 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 commons-jcs corpus
apache/commons-jcs: Apache Commons JCS
- Look up how commons-jcs implements commons, with answers cited to file and line.
- Reuse a worked example: the commit “Adapt jcs-yaicache to jcs4” (57 files · Java).
- Answer from commons-jcs's real Java source instead of memory (API design and specification).
- Where does commons-jcs handle “Adapt jcs-yaicache to jcs4”?
- How does commons-jcs implement commons?
- What does commons-jcs4-sandbox do in commons-jcs?
Search the GitHub repository apache/commons-jcs with XERJ (https://hub.xerj.org/corpus/apache--commons-jcs). 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/apache/commons-jcs commons-jcs && git -C commons-jcs checkout 14ad67d6519ceb681e05b7d59af4bcbea62a3329 3. Start a local node and leave it running: xerj --insecure --data-dir ./xerj-data 4. xerj autoindex ./commons-jcs --url http://127.0.0.1:9200 --prefix commons-jcs --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: Apache-2.0. Keep the copyright notice and credit the authors.
corpus apache--commons-jcs · API design and specification
Related corpora: asyncapi-studio, spectral, swift-evolution, openapi-moonwalk
Search an OpenAPI spec from an agent · Case study: reference coding for agents
Selected work
apache/commons-jcs
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/tvand)
Included with the author's permission (email, 2026-10-19), under each repository's own licence, with attribution. Want it removed? Reply to the email or open an issue on xerj-org/xerj.