---
library_name: purpose-agent
license: mit
language:
  - en
tags:
  - reinforcement-learning
  - agents
  - self-improving
  - experience-replay
  - llm-as-judge
  - state-value-evaluation
  - memory-augmented
  - multi-agent
  - slm
  - small-language-models
  - human-in-the-loop
  - streaming
  - tools
  - evaluation
  - ollama
  - local-models
  - no-code
  - easy-to-use
pipeline_tag: text-generation
---

# Purpose Agent

**Build self-improving AI agent teams with just a purpose.**

No PhD required. No infrastructure costs. Runs on your laptop.

```python
import purpose_agent as pa

# One line. That's all you need.
team = pa.purpose("Help me research and summarize scientific papers")

# Give it tasks. It gets smarter every time.
result = team.run("Find recent breakthroughs in quantum computing")
print(result)

# Teach it your preferences
team.teach("Always cite your sources")
team.teach("Keep summaries under 200 words")

# Check what it's learned
print(team.status())
```

## Three Levels of Usage

**Pick your level. You can always go deeper later.**

### Level 1 — Beginner (no technical knowledge needed)

```python
import purpose_agent as pa

# Describe what you want. The framework builds the right team.
team = pa.purpose("Write Python code and test it")
result = team.run("Create a function that calculates fibonacci numbers")
print(result)

# It auto-detects the best team:
# "Write code"     → architect + coder + tester
# "Research X"     → researcher + analyst
# "Write blog"     → writer + editor
# "Analyze data"   → analyst + reporter
# "Help me"        → general assistant
```

### Level 2 — Intermediate (customize your team)

```python
import purpose_agent as pa

# Build a custom team
team = pa.Team.build(
    purpose="Customer support assistant",
    agents=["greeter", "resolver", "escalator"],
    model="qwen3:1.7b",  # Free local model
)
result = team.run("Customer says: I can't log in to my account")

# Add knowledge from your docs
team = pa.purpose(
    "Answer questions about our product",
    knowledge="./docs/",           # Load all files from a folder
    model="qwen3:1.7b",
)
result = team.ask("What is our refund policy?")
```

### Level 3 — Advanced (full control)

```python
import purpose_agent as pa

# Graph workflows (like LangGraph)
graph = pa.Graph()
graph.add_node("research", pa.Agent("researcher", model="qwen3:1.7b"))
graph.add_node("write", pa.Agent("writer", model="phi4-mini"))
graph.add_edge(pa.START, "research")
graph.add_conditional_edge("write", review_fn, {"pass": pa.END, "fail": "research"})
result = graph.run(initial_state)

# Parallel execution (like CrewAI)
results = pa.parallel(["task 1", "task 2", "task 3"], agents=[a1, a2, a3])

# Agent conversations (like AutoGen)
chat = pa.Conversation([researcher, coder, reviewer])
result = chat.run("Design a web scraper", rounds=5)

# Knowledge-aware agents (like LlamaIndex)
kb = pa.KnowledgeStore.from_directory("./docs")
agent = pa.Agent("assistant", tools=[kb.as_tool()])

# Human-in-the-loop (like LangGraph)
hitl = pa.HITLOrchestrator(orch, input_handler=pa.CLIInputHandler(),
                           approve_actions=True, review_scores=True)
```

## What Makes This Different

**The only framework where agents actually learn from experience.**

Every other framework (LangChain, CrewAI, AutoGen) runs the same way every time. Purpose Agent gets smarter with each task via the **Φ self-improvement loop**:

```
Task 1: Agent struggles, takes 12 steps → Φ evaluates → learns heuristics
Task 5: Agent uses learned patterns, takes 8 steps → learns more
Task 10: Agent is efficient, takes 5 steps → keeps refining
```

Plus it absorbs the best of every competing framework:

| You want... | Others say use... | Purpose Agent gives you... |
|---|---|---|
| **Control** (graphs, conditions, loops) | LangGraph | `pa.Graph()` — same power, with self-improvement |
| **Speed** (parallel execution) | CrewAI | `pa.parallel()` — real threads, not fake async |
| **Agents talking** | AutoGen | `pa.Conversation()` — with Φ-scored turns |
| **Plug-and-play** | OpenAI Agents SDK | `pa.purpose()` — even simpler, one function |
| **Knowledge** (RAG) | LlamaIndex | `pa.KnowledgeStore` — RAG as a tool |
| **Self-improvement** | Nobody | **Only Purpose Agent** |

## Runs on Your Laptop (Free, Private)

```bash
# Install Ollama (one-time)
curl -fsSL https://ollama.ai/install.sh | sh
ollama pull qwen3:1.7b   # 1.7B params, runs on CPU

# That's it. No API keys. No cloud. No cost.
```

```python
team = pa.purpose("Research assistant", model="qwen3:1.7b")
```

Also works with cloud models:
```python
team = pa.purpose("Research assistant", model="gpt-4o")         # OpenAI
team = pa.purpose("Research assistant", model="Qwen/Qwen3-32B") # HuggingFace
```

## Interactive CLI

```bash
python -m purpose_agent
```

Walks you through setup step-by-step. No coding required.

## Installation

```bash
git clone https://huggingface.co/Rohan03/purpose-agent
cd purpose-agent

# For local models (recommended)
pip install ollama

# Run demo (no API keys needed)
python demo.py
```

## Literature Foundation

Built on 8 published papers — every design decision has empirical backing.
See [COMPILED_RESEARCH.md](COMPILED_RESEARCH.md) for the full research trace.

| Paper | What it contributes |
|-------|-------------------|
| [MUSE](https://arxiv.org/abs/2510.08002) | 3-tier memory hierarchy |
| [LATS](https://arxiv.org/abs/2310.04406) | LLM-as-value-function |
| [REMEMBERER](https://arxiv.org/abs/2306.07929) | Q-value experience replay |
| [Reflexion](https://arxiv.org/abs/2303.11366) | Verbal reinforcement |
| [SPC](https://arxiv.org/abs/2504.19162) | Anti-reward-hacking |
| [CER](https://arxiv.org/abs/2506.06698) | Experience distillation |
| [MemRL](https://arxiv.org/abs/2601.03192) | Two-phase retrieval |
| [TinyAgent](https://arxiv.org/abs/2409.00608) | SLM-native patterns |

## License

MIT