On this tutorial, we work straight with the A-Evolve framework in Colab and construct a whole evolutionary agent pipeline from the bottom up. We arrange the repository, configure an OpenAI-powered agent, outline a customized benchmark, and construct our personal evolution engine to see how A-Evolve truly improves an agent via iterative workspace mutations. By way of the code, we use the framework’s core abstractions for prompts, abilities, reminiscence, benchmarking, and evolution, which assist us perceive not simply the best way to run A-Evolve, but additionally the best way to prolong it in a sensible, Colab-friendly method.
import os
import sys
import json
import textwrap
import subprocess
import shutil
from pathlib import Path
from getpass import getpass
from collections import Counter, defaultdict
subprocess.check_call([sys.executable, "-m", "pip", "install", "-q", "openai>=1.30.0", "pyyaml>=6.0", "matplotlib>=3.8"])
REPO_DIR = Path("/content/a-evolve")
if REPO_DIR.exists():
shutil.rmtree(REPO_DIR)
subprocess.check_call(["git", "clone", "--depth", "1", " str(REPO_DIR)])
sys.path.insert(0, str(REPO_DIR))
if not os.environ.get("OPENAI_API_KEY"):
os.environ["OPENAI_API_KEY"] = getpass("Enter your OpenAI API key: ").strip()
OPENAI_MODEL = "gpt-4o-mini"
import yaml
import matplotlib.pyplot as plt
import agent_evolve as ae
from agent_evolve.protocol.base_agent import BaseAgent
from agent_evolve.benchmarks.base import BenchmarkAdapter
from agent_evolve.engine.base import EvolutionEngine
from agent_evolve.varieties import Activity, Trajectory, Suggestions, StepResult
from agent_evolve.contract.workspace import AgentWorkspace
from openai import OpenAI
consumer = OpenAI(api_key=os.environ["OPENAI_API_KEY"])
WORKSPACE_ROOT = Path("/content/a_evolve_demo_workspace")
if WORKSPACE_ROOT.exists():
shutil.rmtree(WORKSPACE_ROOT)
(WORKSPACE_ROOT / "prompts").mkdir(dad and mom=True, exist_ok=True)
(WORKSPACE_ROOT / "skills").mkdir(dad and mom=True, exist_ok=True)
(WORKSPACE_ROOT / "memory").mkdir(dad and mom=True, exist_ok=True)
(WORKSPACE_ROOT / "tools").mkdir(dad and mom=True, exist_ok=True)
manifest =
"id": "train-05",
"rule": "pipe_unique_sorted_lower",
"input": "Tokens: Banana, apple, banana, Cherry, apple",
"answer": "apple
with open(WORKSPACE_ROOT / "manifest.yaml", "w") as f:
yaml.dump(manifest, f, sort_keys=False)
initial_system_prompt = textwrap.dedent("""
You're a exact text-transformation agent.
Resolve the duty precisely.
Be concise.
Return solely the ultimate reply with no clarification except the duty explicitly asks for JSON.
""").strip()
(WORKSPACE_ROOT / "prompts" / "system.md").write_text(initial_system_prompt)We put together the complete Colab surroundings wanted to run the tutorial from begin to end. We set up the required packages, clone the A-Evolve repository, load the framework imports, and securely gather the OpenAI API key for mannequin entry. We additionally outline the workspace construction and initialize the manifest and system immediate, offering our evolving agent with a sound place to begin inside the A-Evolve framework.
def build_dataset():
practice = [
zebra"
,
"id": "holdout-03",
"rule": "pipe_unique_sorted_lower",
"input": "Tokens: Mango, apple, mango, Berry, berry",
"answer": "apple,
banana,
zebra"
,
mango"
,
lion,
"id": "holdout-03",
"rule": "pipe_unique_sorted_lower",
"input": "Tokens: Mango, apple, mango, Berry, berry",
"answer": "apple,
{
"id": "train-08",
"rule": "vowel_parity",
"input": "Word: education",
"answer": "ODD"
},
]
holdout = [
{
"id": "holdout-01",
"rule": "json_sum",
"input": "Numbers: 100, 1, 9",
"answer": '{"sum":110}'
},
{
"id": "holdout-02",
"rule": "acronym_upper",
"input": "Create the acronym from: artificial general intelligence",
"answer": "AGI"
},
mango"
,
{
"id": "holdout-04",
"rule": "vowel_parity",
"input": "Word: aeroplane",
"answer": "ODD"
},
]
return practice, holdout
TRAIN_DATA, HOLDOUT_DATA = build_dataset()
def normalize_text(x: str) -> str:
return x.strip().substitute(" ", "")
class MiniTextBenchmark(BenchmarkAdapter):
def __init__(self):
self.practice = TRAIN_DATA
self.holdout = HOLDOUT_DATA
def get_tasks(self, break up: str = "train", restrict: int = 10):
information = self.practice if break up == "train" else self.holdout
duties = []
for row in information[:limit]:
duties.append(
Activity(
id=row["id"],
enter=row["input"],
metadata={
"rule": row["rule"],
"answer": row["answer"]
}
)
)
return duties
def consider(self, process: Activity, trajectory: Trajectory):
pred = trajectory.output.strip()
gold = process.metadata["answer"].strip()
success = normalize_text(pred) == normalize_text(gold)
element = {
"rule": process.metadata["rule"],
"gold": gold,
"pred": pred,
"input": process.enter,
"success": success
}
rating = 1.0 if success else 0.0
return Suggestions(
success=success,
rating=rating,
element=json.dumps(element, ensure_ascii=False),
uncooked=element
)
SKILL_ROUTING = {
"json_sum": ["json", "sum"],
"acronym_upper": ["acronym", "uppercase"],
"pipe_unique_sorted_lower": ["unique", "sorted", "lowercase", "pipe"],
"vowel_parity": ["vowel", "odd", "even", "parity"]
}
We outline the coaching and holdout datasets used to measure the agent earlier than and after evolution. We construct a customized benchmark class that packages every instance into A-Evolve duties and evaluates predictions towards precise anticipated outputs. We additionally arrange the routing hints for abilities, which prepares the system to attach totally different process varieties with the correct behavioral patterns later within the workflow.
class ColabAEResolverAgent(BaseAgent):
def __init__(self, workspace_dir: str | Path, mannequin: str = OPENAI_MODEL):
self.mannequin = mannequin
tremendous().__init__(workspace_dir)
def _pick_relevant_skills(self, process: Activity):
rule = process.metadata.get("rule", "")
chosen = []
for ability in self.abilities:
hay = f"{skill.name} {skill.description}".decrease()
if rule == "json_sum" and ("json" in hay or "sum" in hay):
chosen.append(ability)
elif rule == "acronym_upper" and ("acronym" in hay or "uppercase" in hay):
chosen.append(ability)
elif rule == "pipe_unique_sorted_lower" and any(okay in hay for okay in ["unique", "sorted", "lowercase", "pipe"]):
chosen.append(ability)
elif rule == "vowel_parity" and any(okay in hay for okay in ["vowel", "odd", "even", "parity"]):
chosen.append(ability)
return chosen[:3]
def clear up(self, process: Activity) -> Trajectory:
relevant_skills = self._pick_relevant_skills(process)
relevant_skill_texts = []
for s in relevant_skills:
relevant_skill_texts.append(self.get_skill_content(s.title))
memory_text = "n".be a part of(
[f"- {m.get('content', '')}" for m in self.memories[-8:]]
).strip()
skill_block = "nn".be a part of(relevant_skill_texts).strip()
if not skill_block:
skill_block = "(no skills loaded yet)"
if not memory_text:
memory_text = "(no memory yet)"
user_prompt = textwrap.dedent(f"""
TASK RULE: {process.metadata.get("rule")}
TASK INPUT:
{process.enter}
ACTIVE SYSTEM PROMPT:
{self.system_prompt}
RELEVANT SKILLS:
{skill_block}
RECENT MEMORIES:
{memory_text}
Resolve the duty precisely.
Return solely the ultimate reply.
""").strip()
response = consumer.chat.completions.create(
mannequin=self.mannequin,
temperature=0,
messages=[
{"role": "system", "content": "You are an exact text-transformation agent."},
{"role": "user", "content": user_prompt}
]
)
output = (response.selections[0].message.content material or "").strip()
self.bear in mind(
content material=f"Task {task.id} under rule {task.metadata.get('rule')} produced output: {output}",
class="episodic"
)
return Trajectory(
task_id=process.id,
output=output,
steps=[
{
"rule": task.metadata.get("rule"),
"used_skills": [s.name for s in relevant_skills],
"system_prompt_chars": len(self.system_prompt),
"memory_items_seen": len(self.recollections)
}
]
)
SKILL_TEMPLATES = {
"json_sum": textwrap.dedent("""
---
title: json-sum-exact
description: Add all integers and output strict compact JSON with the only key sum.
---
# JSON Sum Precise
Process:
1. Extract all integers from the duty enter.
2. Add them.
3. Return precisely one compact JSON object on this format:
{"sum":NUMBER}
4. Don't add areas, explanations, markdown, or further keys.
""").strip(),
"acronym_upper": textwrap.dedent("""
---
title: acronym-upper-exact
description: Construct an uppercase acronym by taking the primary letter of every phrase.
---
# Acronym Higher Precise
Process:
1. Establish the phrase after the colon.
2. Take the primary letter of every phrase.
3. Convert each letter to uppercase.
4. Return solely the ultimate acronym, with no punctuation or clarification.
""").strip(),
"pipe_unique_sorted_lower": textwrap.dedent("""
---
title: pipe-unique-sorted-lower
description: Normalize tokens to lowercase, deduplicate them, kind ascending, and be a part of them with pipes.
---
# Pipe Distinctive Sorted Decrease
Process:
1. Learn the token record after the colon.
2. Cut up by commas.
3. Trim areas and lowercase each token.
4. Take away duplicates.
5. Type alphabetically ascending.
6. Be part of with "|" and return solely the ultimate string.
""").strip(),
"vowel_parity": textwrap.dedent("""
---
title: vowel-parity-exact
description: Rely vowels within the phrase and output ODD or EVEN solely.
---
# Vowel Parity Precise
Process:
1. Learn the goal phrase after the colon.
2. Rely vowels utilizing a, e, i, o, u.
3. If the rely is odd, output ODD.
4. If the rely is even, output EVEN.
5. Return solely ODD or EVEN with no further textual content.
""").strip(),
}
PROMPT_APPENDIX = textwrap.dedent("""
## STRICT OUTPUT CONTRACT
- Output solely the ultimate reply.
- By no means clarify your reasoning.
- If a process expects JSON, return compact JSON with precise keys solely.
- When a related ability exists, observe it actually.
- Precise format is extra essential than being conversational.
""").strip()We implement the customized A-Evolve agent that reads the lively immediate, abilities, and reminiscence from the workspace and makes use of OpenAI to unravel every process. We design the agent so it selects related abilities, injects latest reminiscence, and returns trajectories within the construction anticipated by the framework. We additionally outline the ability templates and the strict output contract, which function the principle elements that the evolution engine can add to enhance efficiency over time.
class ColabMutationEngine(EvolutionEngine):
def __init__(self):
self.cycle_count = 0
def step(self, workspace: AgentWorkspace, observations, historical past, trial):
self.cycle_count += 1
failed_by_rule = defaultdict(record)
for obs in observations:
if not obs.suggestions.success:
failed_by_rule[obs.task.metadata["rule"]].append({
"task_id": obs.process.id,
"input": obs.process.enter,
"gold": obs.process.metadata["answer"],
"pred": obs.trajectory.output
})
mutated = False
summaries = []
current_prompt = workspace.read_prompt()
if "STRICT OUTPUT CONTRACT" not in current_prompt:
workspace.write_prompt(current_prompt.rstrip() + "nn" + PROMPT_APPENDIX + "n")
mutated = True
summaries.append("prompt hardened")
existing_skill_names = {s.title for s in workspace.list_skills()}
needed_rule_to_skill_name = {
"json_sum": "json-sum-exact",
"acronym_upper": "acronym-upper-exact",
"pipe_unique_sorted_lower": "pipe-unique-sorted-lower",
"vowel_parity": "vowel-parity-exact",
}
for rule, fails in failed_by_rule.objects():
skill_name = needed_rule_to_skill_name[rule]
if skill_name not in existing_skill_names:
workspace.write_skill(skill_name, SKILL_TEMPLATES[rule])
mutated = True
summaries.append(f"added skill {skill_name}")
workspace.add_memory({
"content": f"Cycle {self.cycle_count}: rule={rule} failed {len(fails)} time(s). Common failure pattern: output formatting or procedure mismatch. Gold examples must be followed exactly.",
"rule": rule,
"examples": fails[:2]
}, class="episodic")
if not failed_by_rule:
workspace.add_memory({
"content": f"Cycle {self.cycle_count}: all current training tasks succeeded. Preserve exact formatting behavior."
}, class="episodic")
abstract = " | ".be a part of(summaries) if summaries else "no mutation needed"
return StepResult(
mutated=mutated,
abstract=abstract,
metadata={
"failed_rules": record(failed_by_rule.keys()),
"num_failed_rules": len(failed_by_rule),
"cycle": self.cycle_count
}
)
def evaluate_split(agent, benchmark, break up="train"):
duties = benchmark.get_tasks(break up=break up, restrict=100)
rows = []
complete = 0
appropriate = 0
for process in duties:
traj = agent.clear up(process)
fb = benchmark.consider(process, traj)
rows.append({
"task_id": process.id,
"rule": process.metadata["rule"],
"input": process.enter,
"gold": process.metadata["answer"],
"pred": traj.output,
"score": fb.rating,
"success": fb.success
})
complete += 1
appropriate += int(fb.success)
rating = appropriate / max(complete, 1)
return rating, rows
def print_table(rows, title, max_rows=20):
print("n" + "=" * 110)
print(title)
print("=" * 110)
proven = rows[:max_rows]
for r in proven:
print(f"[{r['task_id']}] rule={r['rule']}")
print(f" input : {r['input']}")
print(f" gold : {r['gold']}")
print(f" pred : {r['pred']}")
print(f" score : {r['score']} success={r['success']}")
print("-" * 110)
def show_workspace(root: Path):
print("n" + "=" * 110)
print("EVOLVED WORKSPACE SNAPSHOT")
print("=" * 110)
for path in sorted(root.rglob("*")):
rel = path.relative_to(root)
if path.is_dir():
print(f"[DIR ] {rel}/")
else:
print(f"[FILE] {rel}")
def show_skill_contents(root: Path):
skill_files = sorted((root / "skills").glob("*/SKILL.md"))
print("n" + "=" * 110)
print("SKILL FILES")
print("=" * 110)
if not skill_files:
print("No skill files yet.")
for sf in skill_files:
print(f"n--- {sf.parent.name}/SKILL.md ---")
print(sf.read_text())We construct a customized evolution engine that inspects failures and decides the best way to mutate the workspace. We use it to harden the immediate, add lacking abilities, and retailer episodic reminiscence in order that the agent steadily learns higher formatting and task-specific habits throughout cycles. We additionally outline analysis and reporting utilities that assist us rating the agent, examine predictions, and consider the advanced workspace clearly.
benchmark = MiniTextBenchmark()
agent = ColabAEResolverAgent(WORKSPACE_ROOT, mannequin=OPENAI_MODEL)
engine = ColabMutationEngine()
baseline_train_score, baseline_train_rows = evaluate_split(agent, benchmark, break up="train")
baseline_holdout_score, baseline_holdout_rows = evaluate_split(agent, benchmark, break up="holdout")
print(f"Baseline train score : {baseline_train_score:.3f}")
print(f"Baseline holdout score : {baseline_holdout_score:.3f}")
print_table(baseline_train_rows, "BASELINE TRAIN RESULTS")
print_table(baseline_holdout_rows, "BASELINE HOLDOUT RESULTS")
config = ae.EvolveConfig(
batch_size=8,
max_cycles=4,
egl_window=2
)
evolver = ae.Evolver(
agent=agent,
benchmark=benchmark,
config=config,
engine=engine
)
consequence = evolver.run(cycles=4)
print("n" + "=" * 110)
print("A-EVOLVE RUN SUMMARY")
print("=" * 110)
print(f"Cycles completed : {result.cycles_completed}")
print(f"Final train score: {result.final_score:.3f}")
print(f"Score history : {result.score_history}")
print(f"Converged : {result.converged}")
agent.reload_from_fs()
final_train_score, final_train_rows = evaluate_split(agent, benchmark, break up="train")
final_holdout_score, final_holdout_rows = evaluate_split(agent, benchmark, break up="holdout")
print(f"nFinal train score : {final_train_score:.3f}")
print(f"Final holdout score : {final_holdout_score:.3f}")
print_table(final_train_rows, "FINAL TRAIN RESULTS")
print_table(final_holdout_rows, "FINAL HOLDOUT RESULTS")
show_workspace(WORKSPACE_ROOT)
show_skill_contents(WORKSPACE_ROOT)
print("n" + "=" * 110)
print("FINAL SYSTEM PROMPT")
print("=" * 110)
print((WORKSPACE_ROOT / "prompts" / "system.md").read_text())
episodic_path = WORKSPACE_ROOT / "memory" / "episodic.jsonl"
if episodic_path.exists():
print("n" + "=" * 110)
print("RECENT EPISODIC MEMORY")
print("=" * 110)
strains = episodic_path.read_text().strip().splitlines()
for line in strains[-10:]:
print(line)
plt.determine(figsize=(8, 4))
plt.plot(vary(1, len(consequence.score_history) + 1), consequence.score_history, marker="o")
plt.xlabel("Evolution cycle")
plt.ylabel("Train score")
plt.title("A-Evolve score history")
plt.grid(True)
plt.present()
print("n" + "=" * 110)
print("COMPARISON")
print("=" * 110)
print(f"Train : {baseline_train_score:.3f} -> {final_train_score:.3f}")
print(f"Holdout : {baseline_holdout_score:.3f} -> {final_holdout_score:.3f}")
improved_rules = []
for earlier than, after in zip(sorted(baseline_train_rows, key=lambda x: x["task_id"]), sorted(final_train_rows, key=lambda x: x["task_id"])):
if (not earlier than["success"]) and after["success"]:
improved_rules.append(after["rule"])
print(f"Improved train cases by rule: {dict(Counter(improved_rules))}")
print("nDone. This notebook used the real A-Evolve framework and demonstrated:")
print("1) a valid agent workspace")
print("2) a BaseAgent subclass")
print("3) a BenchmarkAdapter subclass")
print("4) an EvolutionEngine subclass")
print("5) prompt / skill / memory mutations across A-Evolve cycles")We put every part collectively and run the complete A-Evolve loop from baseline analysis to post-evolution evaluation. We measure the agent earlier than coaching, execute a number of evolution cycles, reload the workspace, after which evaluate the ultimate practice and holdout efficiency to see what improves. We additionally examine the advanced immediate, abilities, reminiscence, and rating historical past, which lets us clearly observe how the framework transforms the agent step-by-step.
In conclusion, we efficiently constructed and ran a full A-Evolve workflow relatively than simply inspecting the repository at a floor stage. We created a sound workspace, plugged in a customized agent, benchmarked it on structured duties, after which advanced its habits by modifying prompts, including abilities, and storing reminiscence throughout cycles. Additionally, we noticed how A-Evolve’s design permits us to deal with agent enchancment as a repeatable engineering course of, wherein we are able to measure baseline efficiency, apply managed mutations, and observe how the system turns into extra correct over time.
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