Add an agent config

CLAUDE.md

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+# language-learning
+
+research repo for evaluating language learning tools, methods, and resources.
+
+## structure
+
+- `repos/` — git submodules of open-source projects worth investigating
+- `README.md` — overview of everything: cloned repos, commercial apps, tutor platforms, DIY stack, linguist recommendations
+
+## submodules
+
+clone with `--recurse-submodules` or run `git submodule update --init --recursive` after cloning.
+
+## focus
+
+mic-based speaking practice on phone/laptop. the priority order is:
+1. speaking/conversation tools (companion, discute, ai-english-tutor)
+2. infrastructure for building custom tools (speechbrain, whisper, TTS)
+3. reading/vocab complements (linguacafe, librelingo)
+4. translation (libretranslate)