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Consolidate Service

Bases: Service

The ConsolidateService orchestrates the post-processing pipeline for completed observations, coordinating summarization, engram generation, index generation, and embedding creation.

This service is triggered when an observation is marked complete and is responsible for the following:

  1. Summarization - Generates a natural language summary from the observation using an LLM plugin.
  2. Embedding Summaries - Uses an embedding plugin to create vector embeddings of the summary text.
  3. Engram Generation - Extracts or constructs engrams from the observation's content.
  4. Index Generation - Applies an LLM to generate meaningful textual indices for each engram.
  5. Embedding Indices - Uses an embedding plugin to convert each index into a vector representation.
  6. Publishing Results - Emits messages like ENGRAM_COMPLETE, META_COMPLETE, and INDEX_COMPLETE at various stages to notify downstream systems.

Metrics are tracked throughout the pipeline using a MetricsTracker and returned on demand via the on_acknowledge method.

Attributes:

Name Type Description
plugin_manager PluginManager

Manages access to all system plugins.

llm_summary dict

Plugin used for generating summaries.

llm_gen_indices dict

Plugin used for generating indices from engrams.

embedding_gen_embed dict

Plugin used for generating embeddings for summaries and indices.

db_document dict

Plugin for document-level database access.

observation_repository ObservationRepository

Handles deserialization of incoming observations.

engram_builder dict[str, Engram]

In-memory store of engrams awaiting completion.

index_builder dict[str, Index]

In-memory store of indices being constructed.

metrics_tracker MetricsTracker

Tracks metrics across each processing stage.

Methods:

Name Description
start

Subscribes the service to message topics.

stop

Stops the service and clears subscriptions.

on_observation_complete

Handles post-processing when an observation completes.

generate_summary

Creates a summary of the observation content.

on_summary

Callback after summary generation completes.

generate_summary_embeddings

Generates and attaches embeddings for a summary.

generate_engrams

Constructs engrams from observation data.

on_engrams

Callback after engram generation; handles index and embedding creation.

gen_indices

Uses an LLM to create indices from an engram.

gen_embeddings

Creates embeddings for generated indices.

on_acknowledge

Sends a metrics snapshot for observability/debugging.

Source code in src/engramic/application/consolidate/consolidate_service.py
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class ConsolidateService(Service):
    """
    The ConsolidateService orchestrates the post-processing pipeline for completed observations,
    coordinating summarization, engram generation, index generation, and embedding creation.

    This service is triggered when an observation is marked complete and is responsible for the following:

    1. **Summarization** - Generates a natural language summary from the observation using an LLM plugin.
    2. **Embedding Summaries** - Uses an embedding plugin to create vector embeddings of the summary text.
    3. **Engram Generation** - Extracts or constructs engrams from the observation's content.
    4. **Index Generation** - Applies an LLM to generate meaningful textual indices for each engram.
    5. **Embedding Indices** - Uses an embedding plugin to convert each index into a vector representation.
    6. **Publishing Results** - Emits messages like `ENGRAM_COMPLETE`, `META_COMPLETE`, and `INDEX_COMPLETE` at various stages to notify downstream systems.

    Metrics are tracked throughout the pipeline using a `MetricsTracker` and returned on demand via the
    `on_acknowledge` method.

    Attributes:
        plugin_manager (PluginManager): Manages access to all system plugins.
        llm_summary (dict): Plugin used for generating summaries.
        llm_gen_indices (dict): Plugin used for generating indices from engrams.
        embedding_gen_embed (dict): Plugin used for generating embeddings for summaries and indices.
        db_document (dict): Plugin for document-level database access.
        observation_repository (ObservationRepository): Handles deserialization of incoming observations.
        engram_builder (dict[str, Engram]): In-memory store of engrams awaiting completion.
        index_builder (dict[str, Index]): In-memory store of indices being constructed.
        metrics_tracker (MetricsTracker): Tracks metrics across each processing stage.

    Methods:
        start(): Subscribes the service to message topics.
        stop(): Stops the service and clears subscriptions.
        on_observation_complete(observation_dict): Handles post-processing when an observation completes.
        generate_summary(observation): Creates a summary of the observation content.
        on_summary(summary_fut): Callback after summary generation completes.
        generate_summary_embeddings(meta): Generates and attaches embeddings for a summary.
        generate_engrams(observation): Constructs engrams from observation data.
        on_engrams(engram_list_fut): Callback after engram generation; handles index and embedding creation.
        gen_indices(index, id_in, engram): Uses an LLM to create indices from an engram.
        gen_embeddings(id_and_index_dict, process_index): Creates embeddings for generated indices.
        on_acknowledge(message_in): Sends a metrics snapshot for observability/debugging.
    """

    def __init__(self, host: Host) -> None:
        super().__init__(host)
        self.plugin_manager: PluginManager = host.plugin_manager
        self.llm_summary: dict[str, Any] = self.plugin_manager.get_plugin('llm', 'summary')
        self.llm_gen_indices: dict[str, Any] = self.plugin_manager.get_plugin('llm', 'gen_indices')
        self.embedding_gen_embed: dict[str, Any] = self.plugin_manager.get_plugin('embedding', 'gen_embed')
        self.db_document: dict[str, Any] = self.plugin_manager.get_plugin('db', 'document')
        self.observation_repository = ObservationRepository(self.db_document)
        self.engram_builder: dict[str, Engram] = {}
        self.index_builder: dict[str, Index] = {}
        self.metrics_tracker: MetricsTracker[ConsolidateMetric] = MetricsTracker[ConsolidateMetric]()

    def start(self) -> None:
        self.subscribe(Service.Topic.OBSERVATION_COMPLETE, self.on_observation_complete)
        self.subscribe(Service.Topic.ACKNOWLEDGE, self.on_acknowledge)

    def stop(self) -> None:
        super().stop()

    def on_observation_complete(self, observation_dict: dict[str, Any]) -> None:
        if __debug__:
            self.host.update_mock_data_input(self, observation_dict)

        # should run a task for this.
        observation = self.observation_repository.load_dict(observation_dict)
        self.metrics_tracker.increment(ConsolidateMetric.OBSERVATIONS_RECIEVED)

        summary_observation = self.run_task(self._generate_summary(observation))
        summary_observation.add_done_callback(self.on_summary)

        generate_engrams = self.run_task(self._generate_engrams(observation))
        generate_engrams.add_done_callback(self.on_engrams)

    """
    ### Summarize

    Will be used in the future when we pull in data from other sources.
    """

    async def _generate_summary(self, observation: Observation) -> Meta:
        if (
            observation.meta.summary_full is not None and not observation.meta.summary_full.text
        ):  # native LLM observations have a summary already.
            not_test = 'not tested yet'
            raise NotImplementedError(not_test)
            self.metrics_tracker.increment(ConsolidateMetric.SUMMARIES_GENERATED)

        return observation.meta

    def on_summary(self, summary_fut: Future[Any]) -> None:
        result = summary_fut.result()
        self.run_task(self._generate_summary_embeddings(result))

    async def _generate_summary_embeddings(self, meta: Meta) -> None:
        if meta.summary_full is None:
            error = 'Summary full is none.'
            raise ValueError(error)

        plugin = self.embedding_gen_embed
        embedding_list_ret = await asyncio.to_thread(
            plugin['func'].gen_embed, strings=[meta.summary_full.text], args=self.host.mock_update_args(plugin)
        )

        self.host.update_mock_data(plugin, embedding_list_ret)

        embedding_list = embedding_list_ret[0]['embeddings_list']
        meta.summary_full.embedding = embedding_list[0]

        self.send_message_async(Service.Topic.META_COMPLETE, asdict(meta))

    """
    ### Generate Engrams

    Create engrams from the observation.
    """

    async def _generate_engrams(self, observation: Observation) -> list[Engram]:
        self.metrics_tracker.increment(ConsolidateMetric.ENGRAMS_GENERATED, len(observation.engram_list))

        return observation.engram_list

    def on_engrams(self, engram_list_fut: Future[Any]) -> None:
        engram_list = engram_list_fut.result()

        # Keep references so we can fill them in later
        for engram in engram_list:
            logging.debug('Engram Ready: %s', engram.id)
            if self.engram_builder.get(engram.id) is None:
                self.engram_builder[engram.id] = engram
            else:
                error = 'Engram ID Collision. During conslidation, two Engrams with the same IDs were detected.'
                raise RuntimeError(error)

        # 1) Generate indices for each engram
        index_tasks = [self._gen_indices(i, engram.id, engram) for i, engram in enumerate(engram_list)]

        indices_future = self.run_tasks(index_tasks)

        # Once all indices are generated, generate embeddings
        def on_indices_done(indices_list_fut: Future[Any]) -> None:
            # This is the accumulated result of each gen_indices(...) call
            indices_list: dict[str, Any] = indices_list_fut.result()
            # indices_list should have a key like 'gen_indices' -> list[dict[str, Any]]
            index_sets: list[dict[str, Any]] = indices_list['_gen_indices']

            # 2) Generate embeddings for each index set
            embed_tasks = [self._gen_embeddings(index_set, i) for i, index_set in enumerate(index_sets)]

            logging.debug('index_sets %s', len(index_sets))
            embed_future = self.run_tasks(embed_tasks)

            # Once embeddings are generated, then we're truly done
            def on_embeddings_done(embed_fut: Future[Any]) -> None:
                ret = embed_fut.result()  # ret should have 'gen_embeddings' -> list of engram IDs
                ids = ret['_gen_embeddings']  # which IDs got their embeddings updated

                # 3) Now that embeddings exist, we can send "ENGRAM_COMPLETE" for each
                engram_dict: list[dict[str, Any]] = []
                for eid in ids:
                    logging.debug('Done: %s', eid)
                    engram_dict.append(asdict(self.engram_builder[eid]))

                self.send_message_async(Service.Topic.ENGRAM_COMPLETE, {'engram_array': engram_dict})

                if __debug__:
                    self.host.update_mock_data_output(self, {'engram_array': engram_dict})

                for eid in ids:
                    logging.debug('Deleting: %s', eid)
                    del self.engram_builder[eid]

            embed_future.add_done_callback(on_embeddings_done)

        indices_future.add_done_callback(on_indices_done)

    async def _gen_indices(self, index: int, id_in: str, engram: Engram) -> dict[str, Any]:
        data_input = {'engram': engram}

        prompt = PromptGenIndices(prompt_str='', input_data=data_input)
        plugin = self.llm_gen_indices

        response_schema = {'index_text_array': list[str]}

        indices = await asyncio.to_thread(
            plugin['func'].submit,
            prompt=prompt,
            structured_schema=response_schema,
            args=self.host.mock_update_args(plugin, index),
        )

        self.host.update_mock_data(plugin, indices, index)

        self.metrics_tracker.increment(ConsolidateMetric.INDICES_GENERATED, len(indices))

        response_json = json.loads(indices[0]['llm_response'])

        return {'id': id_in, 'indices': response_json['index_text_array']}

    async def _gen_embeddings(self, id_and_index_dict: dict[str, Any], process_index: int) -> str:
        logging.debug('gen_embeddings: indices in %s', len(id_and_index_dict['indices']))

        indices = id_and_index_dict['indices']
        engram_id: str = id_and_index_dict['id']

        plugin = self.embedding_gen_embed
        embedding_list_ret = await asyncio.to_thread(
            plugin['func'].gen_embed, strings=indices, args=self.host.mock_update_args(plugin, process_index)
        )

        self.host.update_mock_data(plugin, embedding_list_ret, process_index)

        embedding_list = embedding_list_ret[0]['embeddings_list']

        self.metrics_tracker.increment(ConsolidateMetric.EMBEDDINGS_GENERATED, len(embedding_list))

        # Convert raw embeddings to Index objects and attach them
        index_array: list[Index] = []
        for i, vec in enumerate(embedding_list):
            index = Index(indices[i], vec)
            index_array.append(index)

        self.engram_builder[engram_id].indices = index_array
        serialized_index_array = [asdict(index) for index in index_array]

        # We can optionally notify about newly attached indices
        self.send_message_async(Service.Topic.INDEX_COMPLETE, {'index': serialized_index_array, 'engram_id': engram_id})

        # Return the ID so we know which engram was updated
        return engram_id

    """
    ### Acknowledge

    Acknowledge and return metrics
    """

    def on_acknowledge(self, message_in: str) -> None:
        del message_in

        metrics_packet: MetricPacket = self.metrics_tracker.get_and_reset_packet()

        self.send_message_async(
            Service.Topic.STATUS,
            {'id': self.id, 'name': self.__class__.__name__, 'timestamp': time.time(), 'metrics': metrics_packet},
        )