What Happened
- This change adds Hermes as a built-in agent and introduces a shared configuration path so all six builtin agents (claude, gemini, opencode, copilot, codex, hermes) now honor a uniform `[tool].command` and `[tool].env_file` override model, while fixing a case where env_file values for opencode/codex/copilot were silently ignored.
- This change adds Hermes as a built-in agent and introduces a shared configuration path so all six builtin agents (claude, gemini, opencode, copilot, codex, hermes) now honor a uniform `[tool].command` and `[tool].env_file` override model, while fixing a case where env_file values for opencode/codex/copilot were silently ignored.
- 1 evidence item attached for review.