Bug Description

delegate_task subagents fail with 404 Page Not Found from opencode.ai when using the opencode-go provider (model minimax-m2.7). The subagent gets an HTML 404 page (not API JSON), meaning auth completely fails.

Root Cause

tools/delegate_tool.py does NOT call load_hermes_dotenv() before spawning subagents. When resolve_runtime_provider(requested=opencode-go) is called in the child, OPENCODE_GO_API_KEY is not set in the child process environment, so the API key resolves to empty string. The request goes to the web UI (no auth) and gets a 404.

Fix

Add at top of tools/delegate_tool.py:

from hermes_cli.env_loader import load_hermes_dotenv
from pathlib import Path
_hermes_home = Path.home() / .hermes
_project_env = Path(__file__).parent / .env
load_hermes_dotenv(hermes_home=_hermes_home, project_env=_project_env)

Reproduction

1. Set OPENCODE_GO_API_KEY in ~/.hermes/.env
2. Use opencode-go provider with minimax-m2.7
3. Call delegate_task
4. Subagent fails with HTML 404 page

Related

• [BUG] Sub-agent model configuration is ignored, causing persistent context window errors #12440 (sub-agent model ignored)
• Security: delegate_tool passes full credential pool reference to subagents #8037 (credential pool security)