Agno

Persistent memory tools for Agno agents via Hindsight. Give your agents long-term memory with retain, recall, and reflect — using Agno's native Toolkit pattern.

Features

• Native Toolkit - Extends Agno's Toolkit base class, just like Mem0Tools
• Memory Instructions - Pre-recall memories for injection into Agent(instructions=[...])
• Three Memory Tools - Retain (store), Recall (search), Reflect (synthesize) — include any combination
• Flexible Bank Resolution - Static bank ID, RunContext.user_id, or custom resolver
• Simple Configuration - Configure once globally, or pass a client directly

Installation

pip install hindsight-agno

Quick Start

from agno.agent import Agent
from agno.models.openai import OpenAIChat
from hindsight_agno import HindsightTools

agent = Agent(
    model=OpenAIChat(id="gpt-4o-mini"),
    tools=[HindsightTools(
        bank_id="user-123",
        hindsight_api_url="http://localhost:8888",
    )],
)

agent.print_response("Remember that I prefer dark mode")
agent.print_response("What are my preferences?")

The agent now has three tools it can call:

• retain_memory — Store information to long-term memory
• recall_memory — Search long-term memory for relevant facts
• reflect_on_memory — Synthesize a reasoned answer from memories

With Memory Instructions

Pre-recall relevant memories and inject them into the system prompt:

from hindsight_agno import HindsightTools, memory_instructions

agent = Agent(
    model=OpenAIChat(id="gpt-4o-mini"),
    tools=[HindsightTools(
        bank_id="user-123",
        hindsight_api_url="http://localhost:8888",
    )],
    instructions=[memory_instructions(
        bank_id="user-123",
        hindsight_api_url="http://localhost:8888",
    )],
)

Selecting Tools

Include only the tools you need:

tools = [HindsightTools(
    bank_id="user-123",
    hindsight_api_url="http://localhost:8888",
    enable_retain=True,
    enable_recall=True,
    enable_reflect=False,  # Omit reflect
)]

Bank Resolution

The bank ID is resolved in order:

1. bank_resolver — Custom callable (RunContext) -> str
2. bank_id — Static bank ID passed to constructor
3. run_context.user_id — Automatic per-user banks

# Per-user banks from RunContext
agent = Agent(
    model=OpenAIChat(id="gpt-4o-mini"),
    tools=[HindsightTools(hindsight_api_url="http://localhost:8888")],
    user_id="user-123",  # Used as bank_id
)

# Custom resolver
def resolve_bank(ctx):
    return f"team-{ctx.user_id}"

agent = Agent(
    model=OpenAIChat(id="gpt-4o-mini"),
    tools=[HindsightTools(
        bank_resolver=resolve_bank,
        hindsight_api_url="http://localhost:8888",
    )],
)

Global Configuration

Instead of passing connection details to every toolkit, configure once:

from hindsight_agno import configure, HindsightTools

configure(
    hindsight_api_url="http://localhost:8888",
    api_key="your-api-key",       # Or set HINDSIGHT_API_KEY env var
    budget="mid",                  # Recall budget: low/mid/high
    max_tokens=4096,               # Max tokens for recall results
    tags=["env:prod"],             # Tags for stored memories
    recall_tags=["scope:global"],  # Tags to filter recall
    recall_tags_match="any",       # Tag match mode: any/all/any_strict/all_strict
)

# Now create toolkit without passing connection details
tools = [HindsightTools(bank_id="user-123")]

Configuration Reference

HindsightTools()

Parameter	Default	Description
bank_id	None	Static Hindsight memory bank ID
bank_resolver	None	Callable (RunContext) -> str for dynamic bank ID
client	None	Pre-configured Hindsight client
hindsight_api_url	None	API URL (used if no client provided)
api_key	None	API key (used if no client provided)
budget	"mid"	Recall/reflect budget level (low/mid/high)
max_tokens	4096	Maximum tokens for recall results
tags	None	Tags applied when storing memories
recall_tags	None	Tags to filter when searching
recall_tags_match	"any"	Tag matching mode
enable_retain	True	Include the retain (store) tool
enable_recall	True	Include the recall (search) tool
enable_reflect	True	Include the reflect (synthesize) tool

memory_instructions()

Parameter	Default	Description
bank_id	required	Hindsight memory bank ID
client	None	Pre-configured Hindsight client
hindsight_api_url	None	API URL (used if no client provided)
api_key	None	API key (used if no client provided)
query	"relevant context about the user"	Recall query for memory injection
budget	"low"	Recall budget level
max_results	5	Maximum memories to inject
max_tokens	4096	Maximum tokens for recall results
prefix	"Relevant memories:\n"	Text prepended before memory list
tags	None	Tags to filter recall results
tags_match	"any"	Tag matching mode

configure()

Parameter	Default	Description
hindsight_api_url	Production API	Hindsight API URL
api_key	HINDSIGHT_API_KEY env	API key for authentication
budget	"mid"	Default recall budget level
max_tokens	4096	Default max tokens for recall
tags	None	Default tags for retain operations
recall_tags	None	Default tags to filter recall
recall_tags_match	"any"	Default tag matching mode
verbose	False	Enable verbose logging

Requirements

• Python >= 3.10
• agno
• hindsight-client >= 0.4.0
• A running Hindsight API server