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 really improves an agent via iterative workspace mutations. Via the code, we use the framework’s core abstractions for prompts, abilities, reminiscence, benchmarking, and evolution, which assist us perceive not simply tips on how to run A-Evolve, but in addition tips on how to lengthen it in a sensible, Colab-friendly approach.
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 material/a-evolve")
if REPO_DIR.exists():
shutil.rmtree(REPO_DIR)
subprocess.check_call(["git", "clone", "--depth", "1", "https://github.com/A-EVO-Lab/a-evolve.git", 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.sorts import Process, 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 material/a_evolve_demo_workspace")
if WORKSPACE_ROOT.exists():
shutil.rmtree(WORKSPACE_ROOT)
(WORKSPACE_ROOT / "prompts").mkdir(mother and father=True, exist_ok=True)
(WORKSPACE_ROOT / "abilities").mkdir(mother and father=True, exist_ok=True)
(WORKSPACE_ROOT / "reminiscence").mkdir(mother and father=True, exist_ok=True)
(WORKSPACE_ROOT / "instruments").mkdir(mother and father=True, exist_ok=True)
manifest = banana
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.
Remedy the duty precisely.
Be concise.
Return solely the ultimate reply with no clarification until the duty explicitly asks for JSON.
""").strip()
(WORKSPACE_ROOT / "prompts" / "system.md").write_text(initial_system_prompt)
We put together the total Colab setting 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 legitimate start line throughout the A-Evolve framework.
def build_dataset():
prepare = [
zebra"
,
"id": "holdout-03",
"rule": "pipe_unique_sorted_lower",
"input": "Tokens: Mango, apple, mango, Berry, berry",
"answer": "apple,
banana,
lion,
berry,
zebra"
,
berry,
{
"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"
},
berry,
{
"id": "holdout-04",
"rule": "vowel_parity",
"input": "Word: aeroplane",
"answer": "ODD"
},
]
return prepare, holdout
TRAIN_DATA, HOLDOUT_DATA = build_dataset()
def normalize_text(x: str) -> str:
return x.strip().substitute(" ", "")
class MiniTextBenchmark(BenchmarkAdapter):
def __init__(self):
self.prepare = TRAIN_DATA
self.holdout = HOLDOUT_DATA
def get_tasks(self, cut up: str = "prepare", restrict: int = 10):
information = self.prepare if cut up == "prepare" else self.holdout
duties = []
for row in information[:limit]:
duties.append(
Process(
id=row["id"],
enter=row["input"],
metadata={
"rule": row["rule"],
"reply": row["answer"]
}
)
)
return duties
def consider(self, job: Process, trajectory: Trajectory):
pred = trajectory.output.strip()
gold = job.metadata["answer"].strip()
success = normalize_text(pred) == normalize_text(gold)
element = {
"rule": job.metadata["rule"],
"gold": gold,
"pred": pred,
"enter": job.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 in opposition to precise anticipated outputs. We additionally arrange the routing hints for abilities, which prepares the system to attach completely different job sorts with the appropriate 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, job: Process):
rule = job.metadata.get("rule", "")
chosen = []
for ability in self.abilities:
hay = f"{ability.identify} {ability.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, job: Process) -> Trajectory:
relevant_skills = self._pick_relevant_skills(job)
relevant_skill_texts = []
for s in relevant_skills:
relevant_skill_texts.append(self.get_skill_content(s.identify))
memory_text = "n".be part of(
[f"- {m.get('content', '')}" for m in self.memories[-8:]]
).strip()
skill_block = "nn".be part of(relevant_skill_texts).strip()
if not skill_block:
skill_block = "(no abilities loaded but)"
if not memory_text:
memory_text = "(no reminiscence but)"
user_prompt = textwrap.dedent(f"""
TASK RULE: {job.metadata.get("rule")}
TASK INPUT:
{job.enter}
ACTIVE SYSTEM PROMPT:
{self.system_prompt}
RELEVANT SKILLS:
{skill_block}
RECENT MEMORIES:
{memory_text}
Remedy 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.decisions[0].message.content material or "").strip()
self.bear in mind(
content material=f"Process {job.id} below rule {job.metadata.get('rule')} produced output: {output}",
class="episodic"
)
return Trajectory(
task_id=job.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.reminiscences)
}
]
)
SKILL_TEMPLATES = {
"json_sum": textwrap.dedent("""
---
identify: 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 additional keys.
""").strip(),
"acronym_upper": textwrap.dedent("""
---
identify: 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("""
---
identify: pipe-unique-sorted-lower
description: Normalize tokens to lowercase, deduplicate them, type ascending, and be part of them with pipes.
---
# Pipe Distinctive Sorted Decrease
Process:
1. Learn the token listing after the colon.
2. Cut up by commas.
3. Trim areas and lowercase each token.
4. Take away duplicates.
5. Kind alphabetically ascending.
6. Be part of with "|" and return solely the ultimate string.
""").strip(),
"vowel_parity": textwrap.dedent("""
---
identify: 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 depend is odd, output ODD.
4. If the depend is even, output EVEN.
5. Return solely ODD or EVEN with no additional textual content.
""").strip(),
}
PROMPT_APPENDIX = textwrap.dedent("""
## STRICT OUTPUT CONTRACT
- Output solely the ultimate reply.
- By no means clarify your reasoning.
- If a job expects JSON, return compact JSON with precise keys solely.
- When a related ability exists, observe it actually.
- Precise format is extra necessary 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 resolve every job. We design the agent so it selects related abilities, injects current 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 components 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(listing)
for obs in observations:
if not obs.suggestions.success:
failed_by_rule[obs.task.metadata["rule"]].append({
"task_id": obs.job.id,
"enter": obs.job.enter,
"gold": obs.job.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("immediate hardened")
existing_skill_names = {s.identify 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.gadgets():
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 ability {skill_name}")
workspace.add_memory({
"content material": f"Cycle {self.cycle_count}: rule={rule} failed {len(fails)} time(s). Frequent failure sample: output formatting or process mismatch. Gold examples should be adopted precisely.",
"rule": rule,
"examples": fails[:2]
}, class="episodic")
if not failed_by_rule:
workspace.add_memory({
"content material": f"Cycle {self.cycle_count}: all present coaching duties succeeded. Protect precise formatting conduct."
}, class="episodic")
abstract = " | ".be part of(summaries) if summaries else "no mutation wanted"
return StepResult(
mutated=mutated,
abstract=abstract,
metadata={
"failed_rules": listing(failed_by_rule.keys()),
"num_failed_rules": len(failed_by_rule),
"cycle": self.cycle_count
}
)
def evaluate_split(agent, benchmark, cut up="prepare"):
duties = benchmark.get_tasks(cut up=cut up, restrict=100)
rows = []
whole = 0
right = 0
for job in duties:
traj = agent.clear up(job)
fb = benchmark.consider(job, traj)
rows.append({
"task_id": job.id,
"rule": job.metadata["rule"],
"enter": job.enter,
"gold": job.metadata["answer"],
"pred": traj.output,
"rating": fb.rating,
"success": fb.success
})
whole += 1
right += int(fb.success)
rating = right / max(whole, 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" enter : {r['input']}")
print(f" gold : {r['gold']}")
print(f" pred : {r['pred']}")
print(f" rating : {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 / "abilities").glob("*/SKILL.md"))
print("n" + "=" * 110)
print("SKILL FILES")
print("=" * 110)
if not skill_files:
print("No ability recordsdata but.")
for sf in skill_files:
print(f"n--- {sf.mum or dad.identify}/SKILL.md ---")
print(sf.read_text())
We construct a customized evolution engine that inspects failures and decides tips on how to mutate the workspace. We use it to harden the immediate, add lacking abilities, and retailer episodic reminiscence in order that the agent regularly learns higher formatting and task-specific conduct throughout cycles. We additionally outline analysis and reporting utilities that assist us rating the agent, examine predictions, and examine 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, cut up="prepare")
baseline_holdout_score, baseline_holdout_rows = evaluate_split(agent, benchmark, cut up="holdout")
print(f"Baseline prepare rating : {baseline_train_score:.3f}")
print(f"Baseline holdout rating : {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
)
outcome = evolver.run(cycles=4)
print("n" + "=" * 110)
print("A-EVOLVE RUN SUMMARY")
print("=" * 110)
print(f"Cycles accomplished : {outcome.cycles_completed}")
print(f"Remaining prepare rating: {outcome.final_score:.3f}")
print(f"Rating historical past : {outcome.score_history}")
print(f"Converged : {outcome.converged}")
agent.reload_from_fs()
final_train_score, final_train_rows = evaluate_split(agent, benchmark, cut up="prepare")
final_holdout_score, final_holdout_rows = evaluate_split(agent, benchmark, cut up="holdout")
print(f"nFinal prepare rating : {final_train_score:.3f}")
print(f"Remaining holdout rating : {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 / "reminiscence" / "episodic.jsonl"
if episodic_path.exists():
print("n" + "=" * 110)
print("RECENT EPISODIC MEMORY")
print("=" * 110)
traces = episodic_path.read_text().strip().splitlines()
for line in traces[-10:]:
print(line)
plt.determine(figsize=(8, 4))
plt.plot(vary(1, len(outcome.score_history) + 1), outcome.score_history, marker="o")
plt.xlabel("Evolution cycle")
plt.ylabel("Prepare rating")
plt.title("A-Evolve rating historical past")
plt.grid(True)
plt.present()
print("n" + "=" * 110)
print("COMPARISON")
print("=" * 110)
print(f"Prepare : {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 prepare instances by rule: {dict(Counter(improved_rules))}")
print("nDone. This pocket book used the actual A-Evolve framework and demonstrated:")
print("1) a legitimate agent workspace")
print("2) a BaseAgent subclass")
print("3) a BenchmarkAdapter subclass")
print("4) an EvolutionEngine subclass")
print("5) immediate / ability / reminiscence mutations throughout A-Evolve cycles")
We put all the things collectively and run the total 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 examine the ultimate prepare 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 reasonably than simply inspecting the repository at a floor degree. We created a legitimate workspace, plugged in a customized agent, benchmarked it on structured duties, after which advanced its conduct by modifying prompts, including abilities, and storing reminiscence throughout cycles. Additionally, we noticed how A-Evolve’s design allows us to deal with agent enchancment as a repeatable engineering course of, during which 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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