Files
hermes-agent/tests/hermes_cli/test_tools_config.py
Teknium 62f8aa9b03 fix: MCP toolset resolution for runtime and config (#3252)
Gateway sessions had their own inline toolset resolution that only read
platform_toolsets from config, which never includes MCP server names.
MCP tools were discovered and registered but invisible to the model.

- Replace duplicated gateway toolset resolution in _run_agent() and
  _run_background_task() with calls to the shared _get_platform_tools()
- Extend _get_platform_tools() to include globally enabled MCP servers
  at runtime (include_default_mcp_servers=True), while config-editing
  flows use include_default_mcp_servers=False to avoid persisting
  implicit MCP defaults into platform_toolsets
- Add homeassistant to PLATFORMS dict (was missing, caused KeyError)
- Fix CLI entry point to use _get_platform_tools() as well, so MCP
  tools are visible in CLI mode too
- Remove redundant platform_key reassignment in _run_background_task

Co-authored-by: kshitijk4poor <kshitijk4poor@users.noreply.github.com>
2026-03-26 13:39:41 -07:00

240 lines
7.6 KiB
Python

"""Tests for hermes_cli.tools_config platform tool persistence."""
from unittest.mock import patch
from hermes_cli.tools_config import (
_get_platform_tools,
_platform_toolset_summary,
_save_platform_tools,
_toolset_has_keys,
)
def test_get_platform_tools_uses_default_when_platform_not_configured():
config = {}
enabled = _get_platform_tools(config, "cli")
assert enabled
def test_get_platform_tools_preserves_explicit_empty_selection():
config = {"platform_toolsets": {"cli": []}}
enabled = _get_platform_tools(config, "cli")
assert enabled == set()
def test_platform_toolset_summary_uses_explicit_platform_list():
config = {}
summary = _platform_toolset_summary(config, platforms=["cli"])
assert set(summary.keys()) == {"cli"}
assert summary["cli"] == _get_platform_tools(config, "cli")
def test_get_platform_tools_includes_enabled_mcp_servers_by_default():
config = {
"mcp_servers": {
"exa": {"url": "https://mcp.exa.ai/mcp"},
"web-search-prime": {"url": "https://api.z.ai/api/mcp/web_search_prime/mcp"},
"disabled-server": {"url": "https://example.com/mcp", "enabled": False},
}
}
enabled = _get_platform_tools(config, "cli")
assert "exa" in enabled
assert "web-search-prime" in enabled
assert "disabled-server" not in enabled
def test_get_platform_tools_keeps_enabled_mcp_servers_with_explicit_builtin_selection():
config = {
"platform_toolsets": {"cli": ["web", "memory"]},
"mcp_servers": {
"exa": {"url": "https://mcp.exa.ai/mcp"},
"web-search-prime": {"url": "https://api.z.ai/api/mcp/web_search_prime/mcp"},
},
}
enabled = _get_platform_tools(config, "cli")
assert "web" in enabled
assert "memory" in enabled
assert "exa" in enabled
assert "web-search-prime" in enabled
def test_toolset_has_keys_for_vision_accepts_codex_auth(tmp_path, monkeypatch):
monkeypatch.setenv("HERMES_HOME", str(tmp_path))
(tmp_path / "auth.json").write_text(
'{"active_provider":"openai-codex","providers":{"openai-codex":{"tokens":{"access_token": "codex-...oken","refresh_token": "codex-...oken"}}}}'
)
monkeypatch.delenv("OPENROUTER_API_KEY", raising=False)
monkeypatch.delenv("OPENAI_BASE_URL", raising=False)
monkeypatch.delenv("OPENAI_API_KEY", raising=False)
monkeypatch.delenv("AUXILIARY_VISION_PROVIDER", raising=False)
monkeypatch.delenv("CONTEXT_VISION_PROVIDER", raising=False)
assert _toolset_has_keys("vision") is True
def test_save_platform_tools_preserves_mcp_server_names():
"""Ensure MCP server names are preserved when saving platform tools.
Regression test for https://github.com/NousResearch/hermes-agent/issues/1247
"""
config = {
"platform_toolsets": {
"cli": ["web", "terminal", "time", "github", "custom-mcp-server"]
}
}
new_selection = {"web", "browser"}
with patch("hermes_cli.tools_config.save_config"):
_save_platform_tools(config, "cli", new_selection)
saved_toolsets = config["platform_toolsets"]["cli"]
assert "time" in saved_toolsets
assert "github" in saved_toolsets
assert "custom-mcp-server" in saved_toolsets
assert "web" in saved_toolsets
assert "browser" in saved_toolsets
assert "terminal" not in saved_toolsets
def test_save_platform_tools_handles_empty_existing_config():
"""Saving platform tools works when no existing config exists."""
config = {}
with patch("hermes_cli.tools_config.save_config"):
_save_platform_tools(config, "telegram", {"web", "terminal"})
saved_toolsets = config["platform_toolsets"]["telegram"]
assert "web" in saved_toolsets
assert "terminal" in saved_toolsets
def test_save_platform_tools_handles_invalid_existing_config():
"""Saving platform tools works when existing config is not a list."""
config = {
"platform_toolsets": {
"cli": "invalid-string-value"
}
}
with patch("hermes_cli.tools_config.save_config"):
_save_platform_tools(config, "cli", {"web"})
saved_toolsets = config["platform_toolsets"]["cli"]
assert "web" in saved_toolsets
def test_save_platform_tools_does_not_preserve_platform_default_toolsets():
"""Platform default toolsets (hermes-cli, hermes-telegram, etc.) must NOT
be preserved across saves.
These "super" toolsets resolve to ALL tools, so if they survive in the
config, they silently override any tools the user unchecked. Previously,
the preserve filter only excluded configurable toolset keys (web, browser,
terminal, etc.) and treated platform defaults as unknown custom entries
(like MCP server names), causing them to be kept unconditionally.
Regression test: user unchecks image_gen and homeassistant via
``hermes tools``, but hermes-cli stays in the config and re-enables
everything on the next read.
"""
config = {
"platform_toolsets": {
"cli": [
"browser", "clarify", "code_execution", "cronjob",
"delegation", "file", "hermes-cli", # <-- the culprit
"memory", "session_search", "skills", "terminal",
"todo", "tts", "vision", "web",
]
}
}
# User unchecks image_gen, homeassistant, moa — keeps the rest
new_selection = {
"browser", "clarify", "code_execution", "cronjob",
"delegation", "file", "memory", "session_search",
"skills", "terminal", "todo", "tts", "vision", "web",
}
with patch("hermes_cli.tools_config.save_config"):
_save_platform_tools(config, "cli", new_selection)
saved = config["platform_toolsets"]["cli"]
# hermes-cli must NOT survive — it's a platform default, not an MCP server
assert "hermes-cli" not in saved
# The individual toolset keys the user selected must be present
assert "web" in saved
assert "terminal" in saved
assert "browser" in saved
# Tools the user unchecked must NOT be present
assert "image_gen" not in saved
assert "homeassistant" not in saved
assert "moa" not in saved
def test_save_platform_tools_does_not_preserve_hermes_telegram():
"""Same bug for Telegram — hermes-telegram must not be preserved."""
config = {
"platform_toolsets": {
"telegram": [
"browser", "file", "hermes-telegram", "terminal", "web",
]
}
}
new_selection = {"browser", "file", "terminal", "web"}
with patch("hermes_cli.tools_config.save_config"):
_save_platform_tools(config, "telegram", new_selection)
saved = config["platform_toolsets"]["telegram"]
assert "hermes-telegram" not in saved
assert "web" in saved
def test_save_platform_tools_still_preserves_mcp_with_platform_default_present():
"""MCP server names must still be preserved even when platform defaults
are being stripped out."""
config = {
"platform_toolsets": {
"cli": [
"web", "terminal", "hermes-cli", "my-mcp-server", "github-tools",
]
}
}
new_selection = {"web", "browser"}
with patch("hermes_cli.tools_config.save_config"):
_save_platform_tools(config, "cli", new_selection)
saved = config["platform_toolsets"]["cli"]
# MCP servers preserved
assert "my-mcp-server" in saved
assert "github-tools" in saved
# Platform default stripped
assert "hermes-cli" not in saved
# User selections present
assert "web" in saved
assert "browser" in saved
# Deselected configurable toolset removed
assert "terminal" not in saved