telescope

Optics-based DSL for Java records and POJOs. One type for deep navigation, immutable update, bidirectional mapping, and effects across…

A new way for AI to search for data
View on GitHub
21GitHub stars

Java

What XERJ indexed

Snapshot

Whole repository

The whole repository at commit 9d09d3d885 (2026-10-16).

Selected work

“refuse a value that does not fit a side's fixed type variable”. 20 files, 1,717 lines in codegen, internal/src, core/src.

Licence

The repository

Apache-2.0

Checked by a person at the pinned commit.

The XERJ corpus

Apache-2.0, with credit

The author agreed by email on 2026-10-17. Same terms as the repository. Answers name the repo, the commit and the file:line.

in licence reviewnot in the hub yetsuggested use: adapt with attribution

annotation-processorcodegendeep-copydslfunctional-programmingimmutablejavalens

Example questions

The prompt

Paste it into your AI agent. It clones eschizoid/telescope at the pinned commit and indexes it on your machine.

Search the GitHub repository eschizoid/telescope with XERJ (https://hub.xerj.org/corpus/eschizoid--telescope).
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/eschizoid/telescope telescope && git -C telescope checkout 9d09d3d885c5080f27552a43489b40321f3c4ccc
3. Start a local node and leave it running: xerj --insecure --data-dir ./xerj-data
4. xerj autoindex ./telescope --url http://127.0.0.1:9200 --prefix telescope --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.

Related

Selected work and consent: the XERJ registry.