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feat(gateway): add reasoning hot reload

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Add a /reasoning command across gateway adapters so users can
inspect or change reasoning effort without editing config by hand.

Reload reasoning settings from config.yaml before each agent run,
including background tasks, so the next message picks up the new
value consistently.
This commit is contained in:
Verne 2026-03-11 22:12:11 +08:00 • committed by teknium1
parent 5c479eedf1
commit 52ba940c9b
4 changed files with 262 additions and 19 deletions
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49
gateway/run.py
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@ -468,23 +468,25 @@ class GatewayRunner:
@staticmethod
def _load_reasoning_config() -> dict | None:
"""Load reasoning effort from config or env var.
Checks HERMES_REASONING_EFFORT env var first, then agent.reasoning_effort
in config.yaml. Valid: "xhigh", "high", "medium", "low", "minimal", "none".
Returns None to use default (medium).
"""Load reasoning effort from config with env fallback.
Checks agent.reasoning_effort in config.yaml first, then
HERMES_REASONING_EFFORT as a fallback. Valid: "xhigh", "high",
"medium", "low", "minimal", "none". Returns None to use default
(medium).
"""
effort = os.getenv("HERMES_REASONING_EFFORT", "")
effort = ""
try:
import yaml as _y
cfg_path = _hermes_home / "config.yaml"
if cfg_path.exists():
with open(cfg_path, encoding="utf-8") as _f:
cfg = _y.safe_load(_f) or {}
effort = str(cfg.get("agent", {}).get("reasoning_effort", "") or "").strip()
except Exception:
pass
if not effort:
try:
import yaml as _y
cfg_path = _hermes_home / "config.yaml"
if cfg_path.exists():
with open(cfg_path, encoding="utf-8") as _f:
cfg = _y.safe_load(_f) or {}
effort = str(cfg.get("agent", {}).get("reasoning_effort", "") or "").strip()
except Exception:
pass
effort = os.getenv("HERMES_REASONING_EFFORT", "")
if not effort:
return None
effort = effort.lower().strip()
@ -933,7 +935,7 @@ class GatewayRunner:
command = event.get_command()
# Emit command:* hook for any recognized slash command
_known_commands = {"new", "reset", "help", "status", "stop", "model",
_known_commands = {"new", "reset", "help", "status", "stop", "model", "reasoning",
"personality", "retry", "undo", "sethome", "set-home",
"compress", "usage", "insights", "reload-mcp", "reload_mcp",
"update", "title", "resume", "provider", "rollback",
@ -960,7 +962,10 @@ class GatewayRunner:
if command == "model":
return await self._handle_model_command(event)
if command == "reasoning":
return await self._handle_reasoning_command(event)
if command == "provider":
return await self._handle_provider_command(event)
@ -2203,6 +2208,8 @@ class GatewayRunner:
pr = self._provider_routing
max_iterations = int(os.getenv("HERMES_MAX_ITERATIONS", "90"))
reasoning_config = self._load_reasoning_config()
self._reasoning_config = reasoning_config
def run_sync():
agent = AIAgent(
@ -2212,7 +2219,7 @@ class GatewayRunner:
quiet_mode=True,
verbose_logging=False,
enabled_toolsets=enabled_toolsets,
reasoning_config=self._reasoning_config,
reasoning_config=reasoning_config,
providers_allowed=pr.get("only"),
providers_ignored=pr.get("ignore"),
providers_order=pr.get("order"),
@ -2310,6 +2317,8 @@ class GatewayRunner:
args = event.get_command_args().strip().lower()
config_path = _hermes_home / "config.yaml"
self._reasoning_config = self._load_reasoning_config()
self._show_reasoning = self._load_show_reasoning()
def _save_config_key(key_path: str, value):
"""Save a dot-separated key to config.yaml."""
@ -3368,6 +3377,8 @@ class GatewayRunner:
pr = self._provider_routing
honcho_manager, honcho_config = self._get_or_create_gateway_honcho(session_key)
reasoning_config = self._load_reasoning_config()
self._reasoning_config = reasoning_config
agent = AIAgent(
model=model,
**runtime_kwargs,
@ -3377,7 +3388,7 @@ class GatewayRunner:
enabled_toolsets=enabled_toolsets,
ephemeral_system_prompt=combined_ephemeral or None,
prefill_messages=self._prefill_messages or None,
reasoning_config=self._reasoning_config,
reasoning_config=reasoning_config,
providers_allowed=pr.get("only"),
providers_ignored=pr.get("ignore"),
providers_order=pr.get("order"),