hermes - 💡(How to fix) Fix terminal tool fails with `cd: hermes-agent: No such file or directory` when CWD is already the target directory

Bug Description

The terminal tool consistently fails with cd: hermes-agent: No such file or directory before executing any command, polluting all output.

Environment

• OS: macOS (Darwin)
• Shell: zsh (default on macOS)
• Hermes Agent version: v0.13.0 (2026.5.7)
• Working directory: ~/.hermes/hermes-agent
• Terminal backend: local

Reproduction

Any terminal tool invocation produces the error:

$ echo "test"
/opt/homebrew/bin/bash: line 2: cd: hermes-agent: No such file or directory

Even simple commands like echo test123 or pwd fail with the same error.

Root Cause Analysis

The terminal tool's wrapper automatically prepends cd hermes-agent before executing commands. However:

1. The current working directory is already ~/.hermes/hermes-agent
2. The cd command uses a relative path (hermes-agent)
3. This resolves to ~/.hermes/hermes-agent/hermes-agent which does not exist
4. The error appears even though the actual command still executes

Verification

• Shell configs are clean: Checked ~/.bashrc, ~/.bash_profile, ~/.profile, ~/.zshrc, ~/.zprofile — none contain cd hermes-agent
• Other tools work fine: execute_code and browser_navigate are unaffected
• Network access works: Confirmed via execute_code with urllib.request

Expected Behavior

The terminal tool should either:

1. Use an absolute path: cd ~/.hermes/hermes-agent
2. Check if already in the target directory before cd
3. Or not prepend cd at all if already in the correct directory

Workaround

Use execute_code (Python) or browser_navigate instead of terminal for now.

Additional Context

This appears to be a regression or oversight in the terminal backend wrapper, where the cd prefix doesn't account for the case where the CWD is already the target directory.