为什么大模型那么使用grep，cat命令，明明在AGENTS.md已经指定了ffgrep代替grep, ffind代替find， read代替cat，它还是会尝试使用这些命令。 
## Tool Use

- Keep tool-call narration brief.
- Prefer specialized tools over shell equivalents:
  - Use `read` to inspect file contents instead of `cat` or `sed -n`.
  - Use `ffgrep` to search file contents instead of `grep`.
  - Use `fffind` to locate relevant files by name or concept instead of `find`.