[Bug] File Import Instruction Parsing Failure in Claude Code

Bug Description
Claude Code doesn't follow strictly the instructions in the file imported with @ in CLAUDE.md.
I need a clear explaination from Anthropic on how File Import is handled by CC and what are the best practices.
This is the file import structure:
CLAUDE.md
⎿ test/README.md
⎿ test/claude-code-behaviors.md
In the last file, I have this instruction that CC didn't follow:

3. **Run After Each Test**: Execute `mvn test -Dtest=YourTestClass -Dmaven.surefire.timeout=600` after each individual test implementation

Environment Info

• Platform: linux
• Terminal: windows-terminal
• Version: 1.0.98
• Feedback ID: a9a24a1f-4c52-4c9a-bb52-bfa2332a2a98

Errors

[{"error":"Error: No results found for your query.\n\nIMPORTANT: This tool searches for literal code patterns that would appear in files, not keywords or natural language queries. For example:\n- Instead of 'react hook state', search for 'useState('\n- Instead of 'error handling', search 'catch ('\n    at FQB (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:1858:13692)\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)\n    at async Object.call (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:1858:8561)\n    at async jM5 (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3533:11270)\n    at async wmB (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3533:7469)\n    at async PM5 (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3533:6332)\n    at async RM5 (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3533:5869)\n    at async LE (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3533:3007)\n    at async LE (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3533:3821)\n    at async LE (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3533:3821)","timestamp":"2025-08-31T17:12:29.867Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at Module.readFileSync (node:fs:440:20)\n    at Object.readFileSync (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:683:11563)\n    at vVA (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:746:8719)\n    at Object.call (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:1752:936)\n    at call.next (<anonymous>)\n    at UM (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:1757:2956)\n    at file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:1771:1038\n    at process.processTicksAndRejections (node:internal/process/task_queues:105:5)","timestamp":"2025-08-31T17:35:18.936Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at $V (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:1742:1184)\n    at file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:1742:912\n    at Array.map (<anonymous>)\n    at YX (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:1742:903)\n    at ogB (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3178:9325)\n    at TD (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:330:19415)\n    at zc (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:332:42814)\n    at Z9 (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:332:38355)\n    at jb (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:332:38283)\n    at hD (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:332:38137)","timestamp":"2025-08-31T17:38:46.918Z"},{"error":"Error: Language not supported while highlighting code, falling back to markdown: \n    at $V (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:1742:1184)\n    at file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:1742:912\n    at Array.map (<anonymous>)\n    at YX (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:1742:903)\n    at ogB (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:3178:9325)\n    at TD (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:330:19415)\n    at zc (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:332:42814)\n    at Z9 (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:332:38355)\n    at jb (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai/claude-code/cli.js:332:38283)\n    at hD (file:///home/marco/.npm-global/lib/node_modules/@anthropic-ai

Note: Error logs were truncated.