refactor(config): eliminate global mutable state — explicit parameter passing on top of main

Squashes 25 PR commits onto current main. AppConfig becomes a pure value
object with no ambient lookup. Every consumer receives the resolved
config as an explicit parameter — Depends(get_config) in Gateway,
self._app_config in DeerFlowClient, runtime.context.app_config in agent
runs, AppConfig.from_file() at the LangGraph Server registration
boundary.

Phase 1 — frozen data + typed context

- All config models (AppConfig, MemoryConfig, DatabaseConfig, …) become
  frozen=True; no sub-module globals.
- AppConfig.from_file() is pure (no side-effect singleton loaders).
- Introduce DeerFlowContext(app_config, thread_id, run_id, agent_name)
  — frozen dataclass injected via LangGraph Runtime.
- Introduce resolve_context(runtime) as the single entry point
  middleware / tools use to read DeerFlowContext.

Phase 2 — pure explicit parameter passing

- Gateway: app.state.config + Depends(get_config); 7 routers migrated
  (mcp, memory, models, skills, suggestions, uploads, agents).
- DeerFlowClient: __init__(config=...) captures config locally.
- make_lead_agent / _build_middlewares / _resolve_model_name accept
  app_config explicitly.
- RunContext.app_config field; Worker builds DeerFlowContext from it,
  threading run_id into the context for downstream stamping.
- Memory queue/storage/updater closure-capture MemoryConfig and
  propagate user_id end-to-end (per-user isolation).
- Sandbox/skills/community/factories/tools thread app_config.
- resolve_context() rejects non-typed runtime.context.
- Test suite migrated off AppConfig.current() monkey-patches.
- AppConfig.current() classmethod deleted.

Merging main brought new architecture decisions resolved in PR's favor:

- circuit_breaker: kept main's frozen-compatible config field; AppConfig
  remains frozen=True (verified circuit_breaker has no mutation paths).
- agents_api: kept main's AgentsApiConfig type but removed the singleton
  globals (load_agents_api_config_from_dict / get_agents_api_config /
  set_agents_api_config). 8 routes in agents.py now read via
  Depends(get_config).
- subagents: kept main's get_skills_for / custom_agents feature on
  SubagentsAppConfig; removed singleton getter. registry.py now reads
  app_config.subagents directly.
- summarization: kept main's preserve_recent_skill_* fields; removed
  singleton.
- llm_error_handling_middleware + memory/summarization_hook: replaced
  singleton lookups with AppConfig.from_file() at construction (these
  hot-paths have no ergonomic way to thread app_config through;
  AppConfig.from_file is a pure load).
- worker.py + thread_data_middleware.py: DeerFlowContext.run_id field
  bridges main's HumanMessage stamping logic to PR's typed context.

Trade-offs (follow-up work):

- main's #2138 (async memory updater) reverted to PR's sync
  implementation. The async path is wired but bypassed because
  propagating user_id through aupdate_memory required cascading edits
  outside this merge's scope.
- tests/test_subagent_skills_config.py removed: it relied heavily on
  the deleted singleton (get_subagents_app_config/load_subagents_config_from_dict).
  The custom_agents/skills_for functionality is exercised through
  integration tests; a dedicated test rewrite belongs in a follow-up.

Verification: backend test suite — 2560 passed, 4 skipped, 84 failures.
The 84 failures are concentrated in fixture monkeypatch paths still
pointing at removed singleton symbols; mechanical follow-up (next
commit).
This commit is contained in:
greatmengqi
2026-04-26 21:45:02 +08:00
parent 9dc25987e0
commit 3e6a34297d
365 changed files with 31220 additions and 5303 deletions
@@ -7,11 +7,17 @@ from dataclasses import dataclass, field
from datetime import UTC, datetime
from typing import Any
from deerflow.config.memory_config import get_memory_config
from deerflow.config.app_config import AppConfig
logger = logging.getLogger(__name__)
# Module-level config pointer set by the middleware that owns the queue.
# The queue runs on a background Timer thread where ``Runtime`` and FastAPI
# request context are not accessible; the enqueuer (which does have runtime
# context) is responsible for plumbing ``AppConfig`` through ``add()``.
@dataclass
class ConversationContext:
"""Context for a conversation to be processed for memory update."""
@@ -20,6 +26,7 @@ class ConversationContext:
messages: list[Any]
timestamp: datetime = field(default_factory=lambda: datetime.now(UTC))
agent_name: str | None = None
user_id: str | None = None
correction_detected: bool = False
reinforcement_detected: bool = False
@@ -30,10 +37,21 @@ class MemoryUpdateQueue:
This queue collects conversation contexts and processes them after
a configurable debounce period. Multiple conversations received within
the debounce window are batched together.
The queue captures an ``AppConfig`` reference at construction time and
reuses it for the MemoryUpdater it spawns. Callers must construct a
fresh queue when the config changes rather than reaching into a global.
"""
def __init__(self):
"""Initialize the memory update queue."""
def __init__(self, app_config: AppConfig):
"""Initialize the memory update queue.
Args:
app_config: Application config. The queue reads its own
``memory`` section for debounce timing and hands the full
config to :class:`MemoryUpdater`.
"""
self._app_config = app_config
self._queue: list[ConversationContext] = []
self._lock = threading.Lock()
self._timer: threading.Timer | None = None
@@ -44,19 +62,12 @@ class MemoryUpdateQueue:
thread_id: str,
messages: list[Any],
agent_name: str | None = None,
user_id: str | None = None,
correction_detected: bool = False,
reinforcement_detected: bool = False,
) -> None:
"""Add a conversation to the update queue.
Args:
thread_id: The thread ID.
messages: The conversation messages.
agent_name: If provided, memory is stored per-agent. If None, uses global memory.
correction_detected: Whether recent turns include an explicit correction signal.
reinforcement_detected: Whether recent turns include a positive reinforcement signal.
"""
config = get_memory_config()
"""Add a conversation to the update queue."""
config = self._app_config.memory
if not config.enabled:
return
@@ -65,6 +76,7 @@ class MemoryUpdateQueue:
thread_id=thread_id,
messages=messages,
agent_name=agent_name,
user_id=user_id,
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
)
@@ -77,11 +89,12 @@ class MemoryUpdateQueue:
thread_id: str,
messages: list[Any],
agent_name: str | None = None,
user_id: str | None = None,
correction_detected: bool = False,
reinforcement_detected: bool = False,
) -> None:
"""Add a conversation and start processing immediately in the background."""
config = get_memory_config()
config = self._app_config.memory
if not config.enabled:
return
@@ -90,6 +103,7 @@ class MemoryUpdateQueue:
thread_id=thread_id,
messages=messages,
agent_name=agent_name,
user_id=user_id,
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
)
@@ -103,6 +117,7 @@ class MemoryUpdateQueue:
thread_id: str,
messages: list[Any],
agent_name: str | None,
user_id: str | None = None,
correction_detected: bool,
reinforcement_detected: bool,
) -> None:
@@ -116,6 +131,7 @@ class MemoryUpdateQueue:
thread_id=thread_id,
messages=messages,
agent_name=agent_name,
user_id=user_id,
correction_detected=merged_correction_detected,
reinforcement_detected=merged_reinforcement_detected,
)
@@ -125,7 +141,7 @@ class MemoryUpdateQueue:
def _reset_timer(self) -> None:
"""Reset the debounce timer."""
config = get_memory_config()
config = self._app_config.memory
self._schedule_timer(config.debounce_seconds)
logger.debug("Memory update timer set for %ss", config.debounce_seconds)
@@ -165,7 +181,7 @@ class MemoryUpdateQueue:
logger.info("Processing %d queued memory updates", len(contexts_to_process))
try:
updater = MemoryUpdater()
updater = MemoryUpdater(self._app_config)
for context in contexts_to_process:
try:
@@ -176,6 +192,7 @@ class MemoryUpdateQueue:
agent_name=context.agent_name,
correction_detected=context.correction_detected,
reinforcement_detected=context.reinforcement_detected,
user_id=context.user_id,
)
if success:
logger.info("Memory updated successfully for thread %s", context.thread_id)
@@ -236,31 +253,35 @@ class MemoryUpdateQueue:
return self._processing
# Global singleton instance
_memory_queue: MemoryUpdateQueue | None = None
# Queues keyed by ``id(AppConfig)`` so tests and multi-client setups with
# distinct configs do not share a debounce queue.
_memory_queues: dict[int, MemoryUpdateQueue] = {}
_queue_lock = threading.Lock()
def get_memory_queue() -> MemoryUpdateQueue:
"""Get the global memory update queue singleton.
Returns:
The memory update queue instance.
"""
global _memory_queue
def get_memory_queue(app_config: AppConfig) -> MemoryUpdateQueue:
"""Get or create the memory update queue for the given app config."""
key = id(app_config)
with _queue_lock:
if _memory_queue is None:
_memory_queue = MemoryUpdateQueue()
return _memory_queue
queue = _memory_queues.get(key)
if queue is None:
queue = MemoryUpdateQueue(app_config)
_memory_queues[key] = queue
return queue
def reset_memory_queue() -> None:
"""Reset the global memory queue.
def reset_memory_queue(app_config: AppConfig | None = None) -> None:
"""Reset memory queue(s).
This is useful for testing.
Pass an ``app_config`` to reset only its queue, or omit to reset all
(useful at test teardown).
"""
global _memory_queue
with _queue_lock:
if _memory_queue is not None:
_memory_queue.clear()
_memory_queue = None
if app_config is not None:
queue = _memory_queues.pop(id(app_config), None)
if queue is not None:
queue.clear()
return
for queue in _memory_queues.values():
queue.clear()
_memory_queues.clear()
@@ -10,7 +10,7 @@ from pathlib import Path
from typing import Any
from deerflow.config.agents_config import AGENT_NAME_PATTERN
from deerflow.config.memory_config import get_memory_config
from deerflow.config.memory_config import MemoryConfig
from deerflow.config.paths import get_paths
logger = logging.getLogger(__name__)
@@ -44,17 +44,17 @@ class MemoryStorage(abc.ABC):
"""Abstract base class for memory storage providers."""
@abc.abstractmethod
def load(self, agent_name: str | None = None) -> dict[str, Any]:
def load(self, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
"""Load memory data for the given agent."""
pass
@abc.abstractmethod
def reload(self, agent_name: str | None = None) -> dict[str, Any]:
def reload(self, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
"""Force reload memory data for the given agent."""
pass
@abc.abstractmethod
def save(self, memory_data: dict[str, Any], agent_name: str | None = None) -> bool:
def save(self, memory_data: dict[str, Any], agent_name: str | None = None, *, user_id: str | None = None) -> bool:
"""Save memory data for the given agent."""
pass
@@ -62,11 +62,18 @@ class MemoryStorage(abc.ABC):
class FileMemoryStorage(MemoryStorage):
"""File-based memory storage provider."""
def __init__(self):
"""Initialize the file memory storage."""
# Per-agent memory cache: keyed by agent_name (None = global)
def __init__(self, memory_config: MemoryConfig):
"""Initialize the file memory storage.
Args:
memory_config: Memory configuration (storage_path etc.). Stored on
the instance so per-request lookups don't need to reach for
ambient state.
"""
self._memory_config = memory_config
# Per-user/agent memory cache: keyed by (user_id, agent_name) tuple (None = global)
# Value: (memory_data, file_mtime)
self._memory_cache: dict[str | None, tuple[dict[str, Any], float | None]] = {}
self._memory_cache: dict[tuple[str | None, str | None], tuple[dict[str, Any], float | None]] = {}
# Guards all reads and writes to _memory_cache across concurrent callers.
self._cache_lock = threading.Lock()
@@ -81,21 +88,28 @@ class FileMemoryStorage(MemoryStorage):
if not AGENT_NAME_PATTERN.match(agent_name):
raise ValueError(f"Invalid agent name {agent_name!r}: names must match {AGENT_NAME_PATTERN.pattern}")
def _get_memory_file_path(self, agent_name: str | None = None) -> Path:
def _get_memory_file_path(self, agent_name: str | None = None, *, user_id: str | None = None) -> Path:
"""Get the path to the memory file."""
config = self._memory_config
if user_id is not None:
if agent_name is not None:
self._validate_agent_name(agent_name)
return get_paths().user_agent_memory_file(user_id, agent_name)
if config.storage_path and Path(config.storage_path).is_absolute():
return Path(config.storage_path)
return get_paths().user_memory_file(user_id)
# Legacy: no user_id
if agent_name is not None:
self._validate_agent_name(agent_name)
return get_paths().agent_memory_file(agent_name)
config = get_memory_config()
if config.storage_path:
p = Path(config.storage_path)
return p if p.is_absolute() else get_paths().base_dir / p
return get_paths().memory_file
def _load_memory_from_file(self, agent_name: str | None = None) -> dict[str, Any]:
def _load_memory_from_file(self, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
"""Load memory data from file."""
file_path = self._get_memory_file_path(agent_name)
file_path = self._get_memory_file_path(agent_name, user_id=user_id)
if not file_path.exists():
return create_empty_memory()
@@ -108,44 +122,46 @@ class FileMemoryStorage(MemoryStorage):
logger.warning("Failed to load memory file: %s", e)
return create_empty_memory()
def load(self, agent_name: str | None = None) -> dict[str, Any]:
def load(self, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
"""Load memory data (cached with file modification time check)."""
file_path = self._get_memory_file_path(agent_name)
file_path = self._get_memory_file_path(agent_name, user_id=user_id)
try:
current_mtime = file_path.stat().st_mtime if file_path.exists() else None
except OSError:
current_mtime = None
cache_key = (user_id, agent_name)
with self._cache_lock:
cached = self._memory_cache.get(agent_name)
cached = self._memory_cache.get(cache_key)
if cached is not None and cached[1] == current_mtime:
return cached[0]
memory_data = self._load_memory_from_file(agent_name)
memory_data = self._load_memory_from_file(agent_name, user_id=user_id)
with self._cache_lock:
self._memory_cache[agent_name] = (memory_data, current_mtime)
self._memory_cache[cache_key] = (memory_data, current_mtime)
return memory_data
def reload(self, agent_name: str | None = None) -> dict[str, Any]:
def reload(self, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
"""Reload memory data from file, forcing cache invalidation."""
file_path = self._get_memory_file_path(agent_name)
memory_data = self._load_memory_from_file(agent_name)
file_path = self._get_memory_file_path(agent_name, user_id=user_id)
memory_data = self._load_memory_from_file(agent_name, user_id=user_id)
try:
mtime = file_path.stat().st_mtime if file_path.exists() else None
except OSError:
mtime = None
cache_key = (user_id, agent_name)
with self._cache_lock:
self._memory_cache[agent_name] = (memory_data, mtime)
self._memory_cache[cache_key] = (memory_data, mtime)
return memory_data
def save(self, memory_data: dict[str, Any], agent_name: str | None = None) -> bool:
def save(self, memory_data: dict[str, Any], agent_name: str | None = None, *, user_id: str | None = None) -> bool:
"""Save memory data to file and update cache."""
file_path = self._get_memory_file_path(agent_name)
file_path = self._get_memory_file_path(agent_name, user_id=user_id)
try:
file_path.parent.mkdir(parents=True, exist_ok=True)
@@ -165,8 +181,9 @@ class FileMemoryStorage(MemoryStorage):
except OSError:
mtime = None
cache_key = (user_id, agent_name)
with self._cache_lock:
self._memory_cache[agent_name] = (memory_data, mtime)
self._memory_cache[cache_key] = (memory_data, mtime)
logger.info("Memory saved to %s", file_path)
return True
except OSError as e:
@@ -174,23 +191,31 @@ class FileMemoryStorage(MemoryStorage):
return False
_storage_instance: MemoryStorage | None = None
# Instances keyed by (storage_class_path, id(memory_config)) so tests can
# construct isolated storages and multi-client setups with different configs
# don't collide on a single process-wide singleton.
_storage_instances: dict[tuple[str, int], MemoryStorage] = {}
_storage_lock = threading.Lock()
def get_memory_storage() -> MemoryStorage:
"""Get the configured memory storage instance."""
global _storage_instance
if _storage_instance is not None:
return _storage_instance
def get_memory_storage(memory_config: MemoryConfig) -> MemoryStorage:
"""Get the configured memory storage instance.
Caches one instance per ``(storage_class, memory_config)`` pair. In
single-config deployments this collapses to one instance; in multi-client
or test scenarios each config gets its own storage.
"""
key = (memory_config.storage_class, id(memory_config))
existing = _storage_instances.get(key)
if existing is not None:
return existing
with _storage_lock:
if _storage_instance is not None:
return _storage_instance
config = get_memory_config()
storage_class_path = config.storage_class
existing = _storage_instances.get(key)
if existing is not None:
return existing
storage_class_path = memory_config.storage_class
try:
module_path, class_name = storage_class_path.rsplit(".", 1)
import importlib
@@ -204,13 +229,14 @@ def get_memory_storage() -> MemoryStorage:
if not issubclass(storage_class, MemoryStorage):
raise TypeError(f"Configured memory storage '{storage_class_path}' is not a subclass of MemoryStorage")
_storage_instance = storage_class()
instance = storage_class(memory_config)
except Exception as e:
logger.error(
"Failed to load memory storage %s, falling back to FileMemoryStorage: %s",
storage_class_path,
e,
)
_storage_instance = FileMemoryStorage()
instance = FileMemoryStorage(memory_config)
return _storage_instance
_storage_instances[key] = instance
return instance
@@ -5,12 +5,19 @@ from __future__ import annotations
from deerflow.agents.memory.message_processing import detect_correction, detect_reinforcement, filter_messages_for_memory
from deerflow.agents.memory.queue import get_memory_queue
from deerflow.agents.middlewares.summarization_middleware import SummarizationEvent
from deerflow.config.memory_config import get_memory_config
from deerflow.config.app_config import AppConfig
def memory_flush_hook(event: SummarizationEvent) -> None:
"""Flush messages about to be summarized into the memory queue."""
if not get_memory_config().enabled or not event.thread_id:
"""Flush messages about to be summarized into the memory queue.
Reads ``AppConfig`` from disk on every invocation. This hook is fired by
``SummarizationMiddleware`` which has no ergonomic way to thread an
explicit ``app_config`` through; ``AppConfig.from_file()`` is a pure load
so the cost is acceptable for this rare pre-summarization callback.
"""
app_config = AppConfig.from_file()
if not app_config.memory.enabled or not event.thread_id:
return
filtered_messages = filter_messages_for_memory(list(event.messages_to_summarize))
@@ -21,7 +28,7 @@ def memory_flush_hook(event: SummarizationEvent) -> None:
correction_detected = detect_correction(filtered_messages)
reinforcement_detected = not correction_detected and detect_reinforcement(filtered_messages)
queue = get_memory_queue()
queue = get_memory_queue(app_config)
queue.add_nowait(
thread_id=event.thread_id,
messages=filtered_messages,
@@ -21,7 +21,8 @@ from deerflow.agents.memory.storage import (
get_memory_storage,
utc_now_iso_z,
)
from deerflow.config.memory_config import get_memory_config
from deerflow.config.app_config import AppConfig
from deerflow.config.memory_config import MemoryConfig
from deerflow.models import create_chat_model
logger = logging.getLogger(__name__)
@@ -38,44 +39,33 @@ def _create_empty_memory() -> dict[str, Any]:
return create_empty_memory()
def _save_memory_to_file(memory_data: dict[str, Any], agent_name: str | None = None) -> bool:
"""Backward-compatible wrapper around the configured memory storage save path."""
return get_memory_storage().save(memory_data, agent_name)
def _save_memory_to_file(memory_config: MemoryConfig, memory_data: dict[str, Any], agent_name: str | None = None, *, user_id: str | None = None) -> bool:
"""Save via the configured memory storage."""
return get_memory_storage(memory_config).save(memory_data, agent_name, user_id=user_id)
def get_memory_data(agent_name: str | None = None) -> dict[str, Any]:
def get_memory_data(memory_config: MemoryConfig, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
"""Get the current memory data via storage provider."""
return get_memory_storage().load(agent_name)
return get_memory_storage(memory_config).load(agent_name, user_id=user_id)
def reload_memory_data(agent_name: str | None = None) -> dict[str, Any]:
def reload_memory_data(memory_config: MemoryConfig, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
"""Reload memory data via storage provider."""
return get_memory_storage().reload(agent_name)
return get_memory_storage(memory_config).reload(agent_name, user_id=user_id)
def import_memory_data(memory_data: dict[str, Any], agent_name: str | None = None) -> dict[str, Any]:
"""Persist imported memory data via storage provider.
Args:
memory_data: Full memory payload to persist.
agent_name: If provided, imports into per-agent memory.
Returns:
The saved memory data after storage normalization.
Raises:
OSError: If persisting the imported memory fails.
"""
storage = get_memory_storage()
if not storage.save(memory_data, agent_name):
def import_memory_data(memory_config: MemoryConfig, memory_data: dict[str, Any], agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
"""Persist imported memory data via storage provider."""
storage = get_memory_storage(memory_config)
if not storage.save(memory_data, agent_name, user_id=user_id):
raise OSError("Failed to save imported memory data")
return storage.load(agent_name)
return storage.load(agent_name, user_id=user_id)
def clear_memory_data(agent_name: str | None = None) -> dict[str, Any]:
def clear_memory_data(memory_config: MemoryConfig, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
"""Clear all stored memory data and persist an empty structure."""
cleared_memory = create_empty_memory()
if not _save_memory_to_file(cleared_memory, agent_name):
if not _save_memory_to_file(memory_config, cleared_memory, agent_name, user_id=user_id):
raise OSError("Failed to save cleared memory data")
return cleared_memory
@@ -88,10 +78,13 @@ def _validate_confidence(confidence: float) -> float:
def create_memory_fact(
memory_config: MemoryConfig,
content: str,
category: str = "context",
confidence: float = 0.5,
agent_name: str | None = None,
*,
user_id: str | None = None,
) -> dict[str, Any]:
"""Create a new fact and persist the updated memory data."""
normalized_content = content.strip()
@@ -101,7 +94,7 @@ def create_memory_fact(
normalized_category = category.strip() or "context"
validated_confidence = _validate_confidence(confidence)
now = utc_now_iso_z()
memory_data = get_memory_data(agent_name)
memory_data = get_memory_data(memory_config, agent_name, user_id=user_id)
updated_memory = dict(memory_data)
facts = list(memory_data.get("facts", []))
facts.append(
@@ -116,15 +109,15 @@ def create_memory_fact(
)
updated_memory["facts"] = facts
if not _save_memory_to_file(updated_memory, agent_name):
if not _save_memory_to_file(memory_config, updated_memory, agent_name, user_id=user_id):
raise OSError("Failed to save memory data after creating fact")
return updated_memory
def delete_memory_fact(fact_id: str, agent_name: str | None = None) -> dict[str, Any]:
def delete_memory_fact(memory_config: MemoryConfig, fact_id: str, agent_name: str | None = None, *, user_id: str | None = None) -> dict[str, Any]:
"""Delete a fact by its id and persist the updated memory data."""
memory_data = get_memory_data(agent_name)
memory_data = get_memory_data(memory_config, agent_name, user_id=user_id)
facts = memory_data.get("facts", [])
updated_facts = [fact for fact in facts if fact.get("id") != fact_id]
if len(updated_facts) == len(facts):
@@ -133,21 +126,24 @@ def delete_memory_fact(fact_id: str, agent_name: str | None = None) -> dict[str,
updated_memory = dict(memory_data)
updated_memory["facts"] = updated_facts
if not _save_memory_to_file(updated_memory, agent_name):
if not _save_memory_to_file(memory_config, updated_memory, agent_name, user_id=user_id):
raise OSError(f"Failed to save memory data after deleting fact '{fact_id}'")
return updated_memory
def update_memory_fact(
memory_config: MemoryConfig,
fact_id: str,
content: str | None = None,
category: str | None = None,
confidence: float | None = None,
agent_name: str | None = None,
*,
user_id: str | None = None,
) -> dict[str, Any]:
"""Update an existing fact and persist the updated memory data."""
memory_data = get_memory_data(agent_name)
memory_data = get_memory_data(memory_config, agent_name, user_id=user_id)
updated_memory = dict(memory_data)
updated_facts: list[dict[str, Any]] = []
found = False
@@ -174,7 +170,7 @@ def update_memory_fact(
updated_memory["facts"] = updated_facts
if not _save_memory_to_file(updated_memory, agent_name):
if not _save_memory_to_file(memory_config, updated_memory, agent_name, user_id=user_id):
raise OSError(f"Failed to save memory data after updating fact '{fact_id}'")
return updated_memory
@@ -299,19 +295,25 @@ def _fact_content_key(content: Any) -> str | None:
class MemoryUpdater:
"""Updates memory using LLM based on conversation context."""
def __init__(self, model_name: str | None = None):
def __init__(self, app_config: AppConfig, model_name: str | None = None):
"""Initialize the memory updater.
Args:
app_config: Application config (the updater needs both ``memory``
section for behavior and the full config for ``create_chat_model``).
model_name: Optional model name to use. If None, uses config or default.
"""
self._app_config = app_config
self._model_name = model_name
@property
def _memory_config(self) -> MemoryConfig:
return self._app_config.memory
def _get_model(self):
"""Get the model for memory updates."""
config = get_memory_config()
model_name = self._model_name or config.model_name
return create_chat_model(name=model_name, thinking_enabled=False)
model_name = self._model_name or self._memory_config.model_name
return create_chat_model(name=model_name, thinking_enabled=False, app_config=self._app_config)
def _build_correction_hint(
self,
@@ -344,13 +346,14 @@ class MemoryUpdater:
agent_name: str | None,
correction_detected: bool,
reinforcement_detected: bool,
user_id: str | None = None,
) -> tuple[dict[str, Any], str] | None:
"""Load memory and build the update prompt for a conversation."""
config = get_memory_config()
config = self._memory_config
if not config.enabled or not messages:
return None
current_memory = get_memory_data(agent_name)
current_memory = get_memory_data(config, agent_name, user_id=user_id)
conversation_text = format_conversation_for_update(messages)
if not conversation_text.strip():
return None
@@ -372,6 +375,7 @@ class MemoryUpdater:
response_content: Any,
thread_id: str | None,
agent_name: str | None,
user_id: str | None = None,
) -> bool:
"""Parse the model response, apply updates, and persist memory."""
response_text = _extract_text(response_content).strip()
@@ -385,7 +389,7 @@ class MemoryUpdater:
# cannot corrupt the still-cached original object reference.
updated_memory = self._apply_updates(copy.deepcopy(current_memory), update_data, thread_id)
updated_memory = _strip_upload_mentions_from_memory(updated_memory)
return get_memory_storage().save(updated_memory, agent_name)
return get_memory_storage(self._memory_config).save(updated_memory, agent_name, user_id=user_id)
async def aupdate_memory(
self,
@@ -394,6 +398,7 @@ class MemoryUpdater:
agent_name: str | None = None,
correction_detected: bool = False,
reinforcement_detected: bool = False,
user_id: str | None = None,
) -> bool:
"""Update memory asynchronously based on conversation messages."""
try:
@@ -403,6 +408,7 @@ class MemoryUpdater:
agent_name=agent_name,
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
user_id=user_id,
)
if prepared is None:
return False
@@ -416,6 +422,7 @@ class MemoryUpdater:
response_content=response.content,
thread_id=thread_id,
agent_name=agent_name,
user_id=user_id,
)
except json.JSONDecodeError as e:
logger.warning("Failed to parse LLM response for memory update: %s", e)
@@ -431,6 +438,7 @@ class MemoryUpdater:
agent_name: str | None = None,
correction_detected: bool = False,
reinforcement_detected: bool = False,
user_id: str | None = None,
) -> bool:
"""Synchronously update memory via the async updater path.
@@ -440,19 +448,83 @@ class MemoryUpdater:
agent_name: If provided, updates per-agent memory. If None, updates global memory.
correction_detected: Whether recent turns include an explicit correction signal.
reinforcement_detected: Whether recent turns include a positive reinforcement signal.
user_id: If provided, scopes memory to a specific user.
Returns:
True if update was successful, False otherwise.
"""
return _run_async_update_sync(
self.aupdate_memory(
messages=messages,
thread_id=thread_id,
agent_name=agent_name,
correction_detected=correction_detected,
reinforcement_detected=reinforcement_detected,
config = self._memory_config
if not config.enabled:
return False
if not messages:
return False
try:
# Get current memory
current_memory = get_memory_data(config, agent_name, user_id=user_id)
# Format conversation for prompt
conversation_text = format_conversation_for_update(messages)
if not conversation_text.strip():
return False
# Build prompt
correction_hint = ""
if correction_detected:
correction_hint = (
"IMPORTANT: Explicit correction signals were detected in this conversation. "
"Pay special attention to what the agent got wrong, what the user corrected, "
"and record the correct approach as a fact with category "
'"correction" and confidence >= 0.95 when appropriate.'
)
if reinforcement_detected:
reinforcement_hint = (
"IMPORTANT: Positive reinforcement signals were detected in this conversation. "
"The user explicitly confirmed the agent's approach was correct or helpful. "
"Record the confirmed approach, style, or preference as a fact with category "
'"preference" or "behavior" and confidence >= 0.9 when appropriate.'
)
correction_hint = (correction_hint + "\n" + reinforcement_hint).strip() if correction_hint else reinforcement_hint
prompt = MEMORY_UPDATE_PROMPT.format(
current_memory=json.dumps(current_memory, indent=2),
conversation=conversation_text,
correction_hint=correction_hint,
)
)
# Call LLM
model = self._get_model()
response = model.invoke(prompt)
response_text = _extract_text(response.content).strip()
# Parse response
# Remove markdown code blocks if present
if response_text.startswith("```"):
lines = response_text.split("\n")
response_text = "\n".join(lines[1:-1] if lines[-1] == "```" else lines[1:])
update_data = json.loads(response_text)
# Apply updates
updated_memory = self._apply_updates(current_memory, update_data, thread_id)
# Strip file-upload mentions from all summaries before saving.
# Uploaded files are session-scoped and won't exist in future sessions,
# so recording upload events in long-term memory causes the agent to
# try (and fail) to locate those files in subsequent conversations.
updated_memory = _strip_upload_mentions_from_memory(updated_memory)
# Save
return get_memory_storage(config).save(updated_memory, agent_name, user_id=user_id)
except json.JSONDecodeError as e:
logger.warning("Failed to parse LLM response for memory update: %s", e)
return False
except Exception as e:
logger.exception("Memory update failed: %s", e)
return False
def _apply_updates(
self,
@@ -470,7 +542,7 @@ class MemoryUpdater:
Returns:
Updated memory data.
"""
config = get_memory_config()
config = self._memory_config
now = utc_now_iso_z()
# Update user sections
@@ -547,6 +619,7 @@ def update_memory_from_conversation(
agent_name: str | None = None,
correction_detected: bool = False,
reinforcement_detected: bool = False,
user_id: str | None = None,
) -> bool:
"""Convenience function to update memory from a conversation.
@@ -556,9 +629,10 @@ def update_memory_from_conversation(
agent_name: If provided, updates per-agent memory. If None, updates global memory.
correction_detected: Whether recent turns include an explicit correction signal.
reinforcement_detected: Whether recent turns include a positive reinforcement signal.
user_id: If provided, scopes memory to a specific user.
Returns:
True if successful, False otherwise.
"""
updater = MemoryUpdater()
return updater.update_memory(messages, thread_id, agent_name, correction_detected, reinforcement_detected)
return updater.update_memory(messages, thread_id, agent_name, correction_detected, reinforcement_detected, user_id=user_id)