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CLAUDE.md

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+# Claude System Instructions & Project Context
+
+## Project Architecture & Stack
+This is a multi-language repository. Adhere strictly to the idiomatic styling, patterns, and type safety of each respective language ecosystem present in the codebase. Do not mix patterns across language boundaries.
+
+## Rules for Code Generation
+- **Type Safety**: Enforce strict typing. Never use `any` or loose types.
+- **Error Handling**: Implement explicit error handling. Avoid silent failures or empty catch blocks.
+- **Dependency Minimization**: Use existing project utilities and native standard libraries before suggesting new external packages.
+- **Local Context**: Search the codebase for existing patterns before writing boilerplate structure from scratch.
+
+## Project Execution Workflows
+You must always use the following custom scripts to build, verify, and test changes. Do not use generic toolchains such as `go test` or `pytest` or `./setup.py test`.
+
+### 🛠️ Build Commands
+Execute this command to compile all modules and check for syntax or type errors:
+```bash
+make debug
+```
+
+### 🧪 Test Commands
+Execute this command to run the test suite across all language domains:
+```bash
+./test.py
+```
+
+To isolate testing to a specific test use, use the test name without the leading
+"test" prefix. For example, to run a python test named test_my_function, use
+```bash
+./test.py my_function
+```
+
+To run all tests in a specific file, for example, in kitty_tests/screen.py, use
+```bash
+./test.py --module screen
+```
+
+To run a Go test named TestMyFunction, use:
+```bash
+./test.py MyFunction
+```
+
+## Verification Pipeline
+Before declaring a task complete, you must follow this exact verification lifecycle:
+1. Run the local **Build Command** to guarantee zero compilation or compilation-stage type errors.
+2. Run the local **Test Command** targeted at the modified module to prevent regressions.
+3. If errors occur, analyze the stdout logs completely before writing a fix. Do not guess.