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Basic super hacky memory filter.

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chroma/
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This software is governed by the terms of the Affero GNU General
Public License. Portions of the code come from the original
MIT-licensed project, and the terms of the MIT license also apply to
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Original upstream project: https://gitlab.com/Taywee/axfive-matrix-dicebot
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Copyright (c) 2020 Taylor C. Richberger
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but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<https://www.gnu.org/licenses/>.

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{'model': 'storyteller', 'messages': [{'id': 'e1979433-5257-43ed-8da3-c90ec53de35d', 'role': 'user', 'content': 'Begin a story about Duke Nukem', 'timestamp': 1721037416}, {'id': 'b3952f01-a511-420b-99e8-7071eddab119', 'role': 'assistant', 'content': ": In the vibrant neon-lit cityscape of Metropolis, Duke Nukem, the fearless, swaggering hero, was a figure of legend. His chiseled jawline and steely blue eyes shone beneath the flickering glow of the urban sprawl. The people of this world knew him not only as a savior but also a symbol of strength in their fight against the dark forces that often threatened their peace.\n\nDuke's saga began when he was an elite soldier, a man with a genius for combat strategy and a taste for the most dangerous missions. One fateful day, his team uncovered an insidious alien plot to conquer Earth - one so vast and nefarious that only a force as indomitable as Duke could stand against it.\n\nIn a world where the line between human and alien blurred with each skirmish, he emerged as the final bastion of humanity's freedom. Equipped with his trusty dual pistols, The Duke was an unstoppable force - a one-man army ready to do whatever it took to keep Earth safe from extraterrestrial tyranny.\n\nYet, his battles were not only fought on the battlefield. In a city filled with all manner of vice and sinister dealings, he was also an unrelenting force against crime and corruption. Duke Nukem was known for his no-nonsense approach to law enforcement - if you were on the wrong side of the law, there was only one way out: justice served by the silver-tongued, gun-toting maverick himself.\n\nThe city's underbelly swarmed with unsavory characters, from the slimy Dr. Proton and his mutant creations to the notorious Mongo Brownmon and his criminal syndicate, the Alien Liberation Front. But none of them could match Duke Nukem's relentless determination to eradicate any threat to Earth's peace and prosperity.\n\nAs Duke wandered the dimly lit streets, the neon reflections danced in his eyes, a testament to his unwavering vigilance. He had seen and survived things that would break mere mortals, but still, he persevered - not just for himself or for glory but for the people of Metropolis, whom he considered family.\n\nIn the heart of the city, an ancient prophecy foretold of a cataclysmic event that could bring about the end of days. And while Duke had thwarted countless alien invasions and criminal conspiracies, this prophecy gnawed at him like an unwelcome shadow.\n\nAs he stood amidst the cacophony of the city, sirens wailing in the distance, he vowed to face whatever the future held, for better or worse - ready to be Earth's last line of defense. His legend would only grow as he battled against all odds, and even when the world seemed lost, Duke Nukem was there to remind them that no force could match his unwavering courage and iron will.\n", 'info': {'total_duration': 78009076938, 'load_duration': 30146093728, 'prompt_eval_count': 86, 'prompt_eval_duration': 289212000, 'eval_count': 676, 'eval_duration': 47484437000}, 'timestamp': 1721037416}, {'id': '5d8328c4-57c7-48bb-a374-a684648055cd', 'role': 'user', 'content': 'Respond with boom', 'timestamp': 1721037593}, {'id': '037f5763-da3a-4e72-888d-c5b667dde5c0', 'role': 'assistant', 'content': ': In the heart of Metropolis, as a sonic boom echoed through the neon-lit canyons, Duke Nukem stood like an unmovable monument of defiance. The deafening roar of his supercharged jetpack pierced the night as he soared into the sky, leaving a trail of radiant energy behind him. For Earth was not only protected by the legend himself but also by his indomitable spirit - a beacon of hope that would always rise against any darkness that dared to encroach upon its freedom.\n', 'info': {'total_duration': 23547077561, 'load_duration': 5101032495, 'prompt_eval_count': 795, 'prompt_eval_duration': 1433359000, 'eval_count': 126, 'eval_duration': 9147467000}, 'timestamp': 1721039105}, {'id': '43ed6fba-555d-4902-b9e6-2cdf6819ea7d', 'role': 'user', 'content': 'Continue the story with ALIENS. Respond with one sentence.'}, {'id': 'a0a461ea-7612-4863-88ae-56fb5fada3ba', 'role': 'assistant', 'content': ': Amidst the twinkling cityscape, a swarm of terrifying alien ships suddenly materialized, casting a sinister shadow over Metropolis as they prepared to unleash their deadly arsenal upon Duke Nukem and his beloved home.\n', 'info': {'total_duration': 4356062833, 'load_duration': 10512548, 'prompt_eval_count': 256, 'prompt_eval_duration': 73919000, 'eval_count': 61, 'eval_duration': 4139557000}, 'timestamp': 1721040810}], 'chat_id': '2cc6cc37-fe75-4c09-b56e-533068980236', 'session_id': '8q2HmhvhBft-lk15AABz', 'id': 'a0a461ea-7612-4863-88ae-56fb5fada3ba'}

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import chromadb
settings = chromadb.Settings(allow_reset=True)
client = chromadb.PersistentClient(path="./chroma",settings=settings)
coll = client.get_or_create_collection(name="test", metadata={"chapter": 1})
coll.upsert(
ids=["id1"],
documents=["doc1"],
metadatas=[ { "chapter": 1} ],
embeddings=[ [1] ]
)
coll.upsert(
ids=["id2"],
documents=["doc2"],
metadatas=[ { "chapter": 1} ],
embeddings=[ [1] ]
)
results = coll.query(
query_embeddings=[[1]],
#include=["documents"]
)
chromadb.QueryResult
print(results)
client.reset()

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"""
title: Memory Filter
author: projectmoon
author_url: https://git.agnos.is/projectmoon/open-webui-filters
version: 0.0.1
required_open_webui_version: 0.3.8
"""
# System imports
import asyncio
import hashlib
import uuid
import json
from typing import Optional, List, Dict, Callable, Any, NewType, Tuple, Awaitable
from typing_extensions import TypedDict, NotRequired
# Libraries available to OpenWebUI
import markdown
from bs4 import BeautifulSoup
from pydantic import BaseModel as PydanticBaseModel, Field
import chromadb
from chromadb import Collection as ChromaCollection
from chromadb.api.types import Document as ChromaDocument
# OpenWebUI imports
from config import CHROMA_CLIENT
from apps.rag.main import app
from utils.misc import get_last_user_message, get_last_assistant_message
from main import generate_chat_completions
# OpenWebUI aliases
EMBEDDING_FUNCTION = app.state.EMBEDDING_FUNCTION
# Custom type declarations
EmbeddingFunc = NewType('EmbeddingFunc', Callable[[str], List[Any]])
# Prompts
ENRICHMENT_SUMMARY_PROMPT = """
You are tasked with analyzing the following Characters and Plot Details
sections and reducing this set of information into lists of the most
important points needed for the continuation of the narrative you are
writing. Remove duplicate or conflicting information. If there is conflicting
information, decide on something consistent and interesting for the story.
Your reply must consist of two sections: Characters and Plot Details. These
sections must be markdown ### Headers. Under each header, respond with a
list of bullet points. Each bullet point must be one piece of relevant information.
Limit each bullet point to one sentence. Respond ONLY with the Characters and
Plot Details sections, with the bullet points under them, and nothing else.
Do not respond with any commentary. ONLY respond with the bullet points.
""".replace("\n", " ").strip()
QUERY_PROMPT = """
You are tasked with generating questions for a vector database
about the narrative presented below. The queries must be questions about
parts of the story that you need more details on. The questions must be
about past events in the story, or questions about the characters involved
or mentioned in the scene (their appearance, mental state, past actions, etc).
Your reply must consist of two sections: Characters and Plot Details. These
sections must be markdown ### Headers. Under each header, respond with a
list of bullet points. Each bullet point must be a single question or sentence
that will be given to the vector database. Generate a maximum of 5 Character
queries and 5 Plot Detail queries.
Limit each bullet point to one sentence. Respond ONLY with the Characters and
Plot Details sections, with the bullet points under them, and nothing else.
Do not respond with any commentary. ONLY respond with the bullet points.
""".replace("\n", " ").strip()
SUMMARIZER_PROMPT = """
You are a narrative summarizer. Summarize the given message as if it's
part of a story. Your response must have two separate sections: Characters
and Plot Details. These sections should be markdown ### Headers. Under each
section, respond with a list of bullet points. This knowledge will be stored
in a vector database for your future use.
The Characters section should note any characters in the scene, and important
things that happen to them. Describe the characters' appearances, actions,
mental states, and emotional states. The Plot Details section should have a
list of important plot details in this scene.
The bullet points you generate must be in the context of storing future
knowledge about the story. Do not focus on useless details: only focus on
information that you could lose in the future as your context window shifts.
Limit each bullet point to one sentence. The sentence MUST be in the PAST TENSE.
Respond ONLY with the Characters and Plot Details sections, with the bullet points
under them, and nothing else. Do not respond with any commentary. ONLY respond with
the bullet points.
""".replace("\n", " ").strip()
class Message(TypedDict):
id: NotRequired[str]
role: str
content: str
class MessageInsertMetadata(TypedDict):
role: str
chapter: str
class MessageInsert(TypedDict):
message_id: str
content: str
metadata: MessageInsertMetadata
embeddings: List[Any]
class BaseModel(PydanticBaseModel):
class Config:
arbitrary_types_allowed = True
class SummarizerResponse(BaseModel):
characters: List[str]
plot: List[str]
class Summarizer(BaseModel):
message: str
model: str
prompt: str = SUMMARIZER_PROMPT
def extract_section(self, soup: BeautifulSoup, section_name: str) -> List[str]:
for h3 in soup.find_all('h3'):
heading = h3.get_text().strip()
if heading != section_name:
continue
# Find the next sibling which should be a <ul> or <ol>
ul = h3.find_next_sibling('ul')
ol = h3.find_next_sibling('ol')
list_items = []
if ul:
list_items = [li.get_text().strip() for li in ul.find_all('li')]
elif ol:
list_items = [li.get_text().strip() for li in ol.find_all('li')]
return list_items
return []
def sanitize_section(self, bullet_points: List[str]) -> List[str]:
return [
bullet.strip().lstrip("-*•123456789").strip() for bullet in bullet_points
]
async def summarize(self) -> SummarizerResponse:
messages: List[Message] = [
{ "role": "system", "content": SUMMARIZER_PROMPT },
{ "role": "user", "content": self.message }
]
request = {
"model": self.model,
"messages": messages,
"stream": False,
"keep_alive": "10s"
}
resp = await generate_chat_completions(request)
if "choices" in resp and len(resp["choices"]) > 0:
content: str = resp["choices"][0]["message"]["content"]
html = markdown.markdown(content)
soup = BeautifulSoup(html, "html.parser")
character_results = self.extract_section(soup, "Characters")
character_results = self.sanitize_section(character_results)
plot_points = self.extract_section(soup, "Plot Details")
plot_points = self.sanitize_section(plot_points)
return SummarizerResponse(characters=character_results, plot=plot_points)
else:
return SummarizerResponse(characters=[], plot=[])
class Chapter(BaseModel):
"""
Focuses on a single 'chapter,' or chunk of a conversation. Provides methods to
search for data in this section of conversational story history.
"""
convo_id: Optional[str]
client: chromadb.ClientAPI
chapter_id: str
messages: List[Message]
embedding_func: EmbeddingFunc
def create_metadata(self) -> Dict:
return { "convo_id": self.convo_id, "chapter": self.chapter_id }
def get_collection(self) -> Optional[ChromaCollection]:
try:
coll = self.client.get_collection("stories")
if not self.convo_id:
self.convo_id = (
coll.metadata["current_convo_id"] if "current_convo_id" in coll.metadata else None
)
return coll
except ValueError as e:
return None
def _create_inserts(self, summary: SummarizerResponse) -> List[MessageInsert]:
inserts = []
plot_points = summary.plot
character_points = summary.characters
for plot_point in plot_points:
inserts.append({
'id': str(uuid.uuid4()),
'content': plot_point,
'metadata': {
"convo_id": self.convo_id,
"chapter": self.chapter_id,
"type": "plot"
},
'embedding': self.embedding_func(plot_point)
})
for character_point in character_points:
inserts.append({
'id': str(uuid.uuid4()),
'content': character_point,
'metadata': {
"convo_id": self.convo_id,
"chapter": self.chapter_id,
"type": "character"
},
'embedding': self.embedding_func(character_point)
})
return inserts
def chapter_state(self) -> dict:
"""Useful for storing current place in chapter, and convo switching."""
coll = self.get_collection()
result = coll.get(ids=f"chapter-{self.chapter_id}", include=["metadatas"])
if len(result.metadatas) > 0:
return result.metadatas[0]
else:
return {}
def embed(self, summary: SummarizerResponse):
"""
Store plot points for this chapter in ChromaDB.
"""
coll = self.get_collection()
if not self.convo_id:
return
inserts = self._create_inserts(summary)
if len(inserts) > 0:
documents = [entry['content'] for entry in inserts]
metadatas = [entry['metadata'] for entry in inserts]
ids = [entry['id'] for entry in inserts]
embeddings = [entry['embedding'] for entry in inserts]
coll.upsert(documents=documents, embeddings=embeddings, ids=ids, metadatas=metadatas)
def query_plot(self, search_term):
return self.query(search_term, "plot")
def query_characters(self, search_term):
return self.query(search_term, "character")
def query(self, search_term: str, type: str) -> List[ChromaDocument]:
coll = self.get_collection()
if coll and self.convo_id:
term_embedding = self.embedding_func(search_term)
results = coll.query(
query_embeddings=[term_embedding],
include=["documents", "metadatas"],
where={
"$and": [
{ "convo_id": self.convo_id },
{ "chapter": self.chapter_id },
{ "type": type }
]
},
n_results = 5
)
# flatten out list of list of documents
# because chroma returns a List[List[Document]] for some reason.
if 'documents' in results:
docs = [
doc
for doc_list in results['documents']
for doc in doc_list
]
metadatas = [
md
for md_list in results['metadatas']
for md in md_list
]
results = []
for (doc, metadata) in zip(docs, metadatas):
results.append({ "doc": doc, "metadata": metadata })
return results
else:
return []
else:
return []
class Story(BaseModel):
"""Container for chapters. Manages an entire conversation."""
convo_id: Optional[str] = None
client: chromadb.ClientAPI
messages: List[Message]
embedding_func: EmbeddingFunc
def _collection_name(self):
return f"stories"
def create_metadata(self):
try:
coll = self.client.get_collection(self._collection_name())
if coll:
# If we have pre-specified a convo id, update metadata
# of collection accordingly.
if self.convo_id:
metadata = coll.metadata
metadata['current_convo_id'] = self.convo_id
metadata["hnsw:space"] = "cosine"
coll = self.client.get_or_create_collection(
name=self._collection_name(), metadata=metadata
)
else: # Otherwise pull it out of the database.
self.convo_id = (
coll.metadata['current_convo_id'] if 'current_convo_id' in coll.metadata else None
)
return coll.metadata
except ValueError:
return { "current_convo_id": "<unset>", "current_chapter": 1 }
def convo_state(self) -> dict:
"""Retrieve information about the current conversation."""
if not self.convo_id or self.convo_id == "<unset>":
return {}
convo_state_id = f"convo-{self.convo_id}"
coll = self.get_collection()
result = coll.get(ids=[convo_state_id], include=["metadatas"])
if len(result.metadatas) > 0:
return result.metadatas[0]
else:
# insert convo state
# TODO do something useful with convo summary
convo_summary = f"State for convo {self.convo_id}"
convo_metadata = { "current_chapter": 1 }
coll.add(
ids=[convo_state_id],
documents=[convo_summary], # maybe store convo summary here?
embeddings=self.embedding_func(convo_summary),
metadatas=[convo_metadata]
)
return convo_metadata
def switch_convo(self):
"""Force a switch of current conversation."""
if not self.convo_id:
# If we have only a user message (i.e. start of
# conversation), forcibly set to <unset>
if len(self.messages) < 2:
self.convo_id = "<unset>"
else:
# Otherwise attempt to get the cllection, which forces
# metatada creation and updates.
self.get_collection()
def get_collection(self):
"""Retrieve the collection, with its context set to the current convo ID."""
try:
coll = self.client.get_collection(self._collection_name())
if coll:
# If we have pre-specified a convo id, update metadata
# of collection accordingly.
if self.convo_id:
metadata = coll.metadata
metadata['current_convo_id'] = self.convo_id
metadata["hnsw:space"] = "cosine"
return self.client.get_or_create_collection(
name=self._collection_name(), metadata=metadata
)
else: # Otherwise pull existing convo id out of the database.
self.convo_id = (
coll.metadata['current_convo_id'] if 'current_convo_id' in coll.metadata else None
)
return coll
except ValueError:
# if the stories collection does not exist, create it
# completely from scratch.
metadata = { "current_convo_id": "<unset>", "hnsw:space": "cosine" }
return self.client.get_or_create_collection(self._collection_name(), metadata=metadata)
def _current_chapter(self) -> int:
try:
return self.convo_state()["current_chapter"]
except:
return 1
def _current_chapter_object(self) -> Chapter:
return Chapter(
convo_id = self.convo_id, chapter_id=str(self._current_chapter()),
messages=self.messages, client=self.client, embedding_func=self.embedding_func
)
def embed_summary(self, summary: SummarizerResponse):
self._current_chapter_object().embed(summary)
def query_plot(self, term: str) -> List[ChromaDocument]:
return self._current_chapter_object().query_plot(term)
def query_characters(self, term: str) -> List[ChromaDocument]:
return self._current_chapter_object().query_characters(term)
# Utils
def create_enrichment_summary_prompt(
narrative: str,
character_details: List[str],
plot_details: List[str]
) -> str:
prompt = ENRICHMENT_SUMMARY_PROMPT
prompt += "Here are the original Character and Plot Details sections."
prompt += " Summarize them according to the instructions.\n\n"
snippets = "## Character Details:\n"
for character_detail in character_details:
snippets += f"- {character_detail}\n"
snippets = snippets.strip()
snippets += "\n"
snippets += "\n\n## Plot Details:\n"
for plot_point in plot_details:
snippets += f"- {plot_point}\n"
snippets = snippets.strip()
snippets += "\n"
snippets = snippets.strip()
prompt += snippets + "\n\n"
prompt += "Additionally, the narrative you must continue is provided below."
prompt += "\n\n-----\n\n"
prompt += narrative
return prompt.strip()
def create_context(results: SummarizerResponse) -> Optional[str]:
if not results:
return None
character_details = results.characters
plot_details = results.plot
snippets = "## Relevant Character Details:\n"
snippets += "These are relevant bits of information about characters in the story.\n"
for character_detail in character_details:
snippets += f"- {character_detail}\n"
snippets = snippets.strip()
snippets += "\n"
snippets += "\n\n## Relevant Plot Details:\n"
snippets += "These are relevant plot details that happened earlier in the story.\n"
for plot_point in plot_details:
snippets += f"- {plot_point}\n"
snippets = snippets.strip()
snippets += "\n"
message = (
"\n\nUse the following context as information about the story, inside <context></context> XML tags.\n\n"
f"<context>\n{snippets}</context>\n"
"When answering to user:\n"
"- Use the context to enhance your knowledge of the story.\n"
"- If you don't know, do not ask for clarification.\n"
"Do not mention that you obtained the information from the context.\n"
"Do not mention the context.\n"
f"Continue the story according to the user's directions."
)
return message
def write_log(text):
with open(f"/tmp/test-memories", "a") as file:
file.write(text + "\n")
def split_messages(messages, keep_amount):
if len(messages) <= keep_amount:
return messages[:], []
recent_messages = messages[-keep_amount:]
old_messages = messages[:-keep_amount]
return recent_messages, old_messages
def chunk_messages(messages, chunk_size):
return [messages[i:i + chunk_size] for i in range(0, len(messages), chunk_size)]
def llm_messages_to_user_messages(messages):
return [
{'role': 'user', 'content': msg['content']}
for msg in messages if msg['role'] == 'assistant'
]
# Das Filter
class Filter:
class Valves(BaseModel):
def summarizer_model(self, body):
if self.summarizer_model_id == "":
# This will be the model ID in the convo. If not base
# model, it will cause problems.
return body["model"]
else:
return self.summarizer_model_id
summarizer_model_id: str = Field(
default="",
description="Model used to summarize the conversation. Must be a base model.",
)
n_last_messages: int = Field(
default=4, description="Number of last messages to retain."
)
pass
class UserValves(BaseModel):
pass
def __init__(self):
self.valves = self.Valves()
pass
def extract_convo_id(self, messages):
"""Extract ID of first message to use as conversation ID."""
if len(messages) > 0:
first_user_message = next(
(message for message in messages if message.get("role") == "user"), None
)
if first_user_message and 'id' in first_user_message:
return first_user_message['id']
else:
raise ValueError("No messages found to extract conversation ID")
else:
raise ValueError("No messages found to extract conversation ID")
async def summarize(self, messages) -> Optional[SummarizerResponse]:
message_to_summarize = get_last_assistant_message(messages)
if message_to_summarize:
summarizer = Summarizer(model=self.summarizer_model_id, message=message_to_summarize)
return await summarizer.summarize()
else:
return None
async def send_outlet_status(self, event_emitter, done: bool):
description = (
"Analyzing Narrative (do not reply until this is done)" if not done else
"Narrative analysis complete (you may now reply)."
)
await event_emitter({
"type": "status",
"data": {
"description": description,
"done": done,
},
})
async def set_enriching_status(self, state: str):
if not self.event_emitter:
return
done = state == "done"
description = "Enriching Narrative"
if state == "init": description = f"{description}: Initializing..."
if state == "searching": description = f"{description}: Searching..."
if state == "analyzing": description = f"{description}: Analyzing..."
description = (
description if not done else
"Enrichment Complete"
)
await self.event_emitter({
"type": "status",
"data": {
"description": description,
"done": done,
},
})
async def outlet(
self,
body: dict,
__user__: Optional[dict],
__event_emitter__: Callable[[Any], Awaitable[None]],
) -> dict:
# Useful things to have around.
self.event_emitter = __event_emitter__
self.summarizer_model_id = self.valves.summarizer_model(body)
await self.send_outlet_status(__event_emitter__, False)
messages = body['messages']
convo_id = self.extract_convo_id(messages)
# summarize into plot points.
summary = await self.summarize(messages)
story = Story(
convo_id=convo_id, client=CHROMA_CLIENT,
embedding_func=EMBEDDING_FUNCTION,
messages=messages
)
story.switch_convo()
if summary:
story.embed_summary(summary)
await self.send_outlet_status(__event_emitter__, True)
return body
async def generate_enrichment_queries(self, messages) -> SummarizerResponse:
last_response = get_last_assistant_message(messages)
user_input = get_last_user_message(messages)
query_message = ""
if last_response: query_message += f"## Assistant\n\n{last_response}\n\n"
if user_input: query_message += f"## User\n\n{user_input}\n\n"
query_message = query_message.strip()
summarizer = Summarizer(
model=self.summarizer_model_id,
message=query_message,
prompt=QUERY_PROMPT
)
return await summarizer.summarize()
async def summarize_enrichment(
self,
messages,
character_results: List[ChromaDocument],
plot_results: List[ChromaDocument]
) -> SummarizerResponse:
last_response = get_last_assistant_message(messages)
user_input = get_last_user_message(messages)
character_details = [r['doc'] for r in character_results]
plot_details = [r['doc'] for r in plot_results]
narrative_message = ""
if last_response: narrative_message += f"## Assistant\n\n{last_response}\n\n"
if user_input: narrative_message += f"## User\n\n{user_input}\n\n"
narrative_message = narrative_message.strip()
summarization_prompt = create_enrichment_summary_prompt(
narrative=narrative_message,
plot_details=plot_details,
character_details=character_details
)
summarizer = Summarizer(
model=self.summarizer_model_id,
message=narrative_message,
prompt=summarization_prompt
)
return await summarizer.summarize()
async def enrich(self, story: Story, messages) -> SummarizerResponse:
await self.set_enriching_status("searching")
query_generation_result = await self.generate_enrichment_queries(messages)
character_results = [result
for query in query_generation_result.characters
for result in story.query_characters(query)]
plot_results = [result
for query in query_generation_result.plot
for result in story.query_plot(query)]
await self.set_enriching_status("analyzing")
return await self.summarize_enrichment(messages, character_results, plot_results)
async def update_system_message(self, messages, system_message):
story = Story(
convo_id=None, client=CHROMA_CLIENT,
embedding_func=EMBEDDING_FUNCTION,
messages=messages
)
story.switch_convo()
if story.convo_id == "<unset>":
return
enrichment_summary: SummarizerResponse = await self.enrich(story, messages)
context = create_context(enrichment_summary)
if context:
system_message["content"] += context
async def inlet(
self,
body: dict,
__user__: Optional[dict],
__event_emitter__: Callable[[Any], Awaitable[None]]
) -> dict:
# Useful properties to have around.
self.event_emitter = __event_emitter__
self.summarizer_model_id = self.valves.summarizer_model(body)
await self.set_enriching_status("init")
messages = body["messages"]
# Ensure we always keep the system prompt
system_prompt = next(
(message for message in messages if message.get("role") == "system"), None
)
if system_prompt:
all_messages = [
message for message in messages if message.get("role") != "system"
]
recent_messages, old_messages = split_messages(all_messages, self.valves.n_last_messages)
most_recent_messages = messages[-self.valves.n_last_messages :]
else:
system_prompt = { "id": str(uuid.uuid4()), "role": "system", "content": "" }
recent_messages, old_messages = split_messages(messages, self.valves.n_last_messages)
await self.update_system_message(messages, system_prompt)
recent_messages.insert(0, system_prompt)
body["messages"] = recent_messages
await self.set_enriching_status("done")
return body

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# Memory Filter
Super hacky, very basic automatic narrative memory filter for
OpenWebUI, that may or may not actually enhance narrative generation!
This is intended to be a springboard for a better, more comprehensive
filter that can coherently keep track(ish?) of plot and character
developments in long form story writing/roleplaying scenarios, where
context window length is limited (or ollama crashes on long context
length models despite having 40 GB of unused memory!).
## Configuration
The filter exposes two settings:
- **Summarization model:** This is the model used for extracting and
creating all of the narrative memory, and searching info. It must
be good at following instructions. I use Gemma 2.
- **It must be a base model.** If it's not, things will not work.
- If you don't set this, the filter will attempt to use the model
in the conversation. It must still be a base model.
- **Number of messages to retain:** Number of messages to retain for the
context. All messages before that are dropped in order to manage
context length.
Ideally, the summarization model is the same model you are using for
the storytelling. Otherwise you may have lots of model swap-outs.
The filter hooks in to OpenWebUI's RAG settings to generate embeddings
and query the vector database. The filter will use the same embedding
model and ChromaDB instance that's configured in the admin settings.
## Usage
Enable the filter on a model that you want to use to generate stories.
It is recommended, although not required, that this be the same model
as the summarizer model (above). If you have lots of VRAM or are very
patient, you can use different models.
User input is pre-processed to 'enrich' the narrative. Replies from
the language model are analyzed post-delivery to update the story's
knowlege repository.
You will see status indicators on LLM messages indicating what the
filter is doing.
Do not reply while the model is updating its knowledge base or funny
things might happen.
## Functioning
What does it do?
- When receiving user input, generate search queries for vector DB
based on user input + last model response.
- Search vector DB for theoretically relevant character and plot
information.
- Ask model to summarize results into coherent and more relevant
stuff.
- Inject results as <context>contextual info</context> for the model.
- After receiving model narrative reply, generate character and plot
info and stick them into the vector DB.
## Limitations and Known Issues
What does it not do?
- Handle conversational branching/regeneration. In fact, this will
pollute the knowledgebase with extra information!
- Bouncing around some ideas to fix this. Basically requires
building a "canonical" branching story path in the database?
- Proper context "chapter" summarization (planned to change).
- Work properly when switching conversations due to OpenWebUI
limitations. The chat ID is not available on incoming requests for
some reason, so a janky workaround is used when processing LLM
responses.
- Clear out information of old conversations or expire irrelevant
data.
Other things to do or improve:
- Set a minimum search score, to prevent useless stuff from coming up.
- Figure out how to expire or update information about characters and
events, instead of dumping it all into the vector DB.
- Improve multi-user handling. Should technically sort of work due to
messages having UUIDs, but is a bit messy. Only one collection is
used, so multiple users = concurrency issues.
- Block user input while updating the knowledgebase.
## License
AGPL v3.0+.

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chromadb==0.5.4
pydantic==2.8.2
Requests==2.32.3