Few-shot esimerkit pipeline-prompteissa: manageri, koodari, QA

Pienet mallit tuottavat huomattavasti parempaa koodia kun promptissa
on konkreettinen esimerkki oikeasta vastauksesta. Lisätty:
- Manageri: esimerkki tiedostolistasta
- Koodari: esimerkki main.py ja models.py -tiedostoista
- QA: esimerkki pytest + TestClient -testeistä

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

network-poc/static/index.html

@@ -2152,7 +2152,11 @@ CONSTRAINTS — the coder can only generate ~400 tokens per file:
 - Only .py and pyproject.toml files
 - No directories, no paths, just filenames
 - List dependencies first, then main app
-- Prefer fewer, focused files over many small ones
+
+EXAMPLE for "FastAPI todo app with SQLite":
+pyproject.toml: project metadata and dependencies
+models.py: SQLAlchemy models and database setup
+main.py: FastAPI app with CRUD endpoints
 
 Project: ${task}`;
             termLog(`\n<span style="color:#d29922;font-weight:bold">[1] Manageri</span> — projektin suunnittelu`);
@@ -2223,9 +2227,48 @@ start = "uvicorn main:app --reload"`;
                     extraInstructions = '\nList one dependency per line. No version pins unless necessary.';
                 }
 
+                const coderExample = file.name.includes('main') || file.name.includes('app')
+                    ? `\nEXAMPLE output for a main.py:
+from fastapi import FastAPI, Depends
+from sqlalchemy.orm import Session
+from models import get_db, User
+
+app = FastAPI()
+
+@app.get("/users")
+def list_users(db: Session = Depends(get_db)):
+    return db.query(User).all()
+
+@app.post("/users")
+def create_user(name: str, db: Session = Depends(get_db)):
+    user = User(name=name)
+    db.add(user)
+    db.commit()
+    return {"id": user.id, "name": user.name}`
+                    : file.name.includes('model')
+                    ? `\nEXAMPLE output for a models.py:
+from sqlalchemy import create_engine, Column, Integer, String
+from sqlalchemy.orm import sessionmaker, declarative_base
+
+engine = create_engine("sqlite:///app.db")
+SessionLocal = sessionmaker(bind=engine)
+Base = declarative_base()
+
+class User(Base):
+    __tablename__ = "users"
+    id = Column(Integer, primary_key=True)
+    name = Column(String)
+
+Base.metadata.create_all(engine)
+
+def get_db():
+    db = SessionLocal()
+    try: yield db
+    finally: db.close()`
+                    : '';
                 const coderPrompt = `${context}Project: ${task}
-Write ONLY the file "${file.name}"${file.desc ? ': ' + file.desc : ''}.${extraInstructions}
-IMPORTANT: Keep the code SHORT and focused. Max ~50 lines. No comments, no docstrings, no type hints unless essential. Write minimal, working code.`;
+Write ONLY the file "${file.name}"${file.desc ? ': ' + file.desc : ''}.${extraInstructions}${coderExample}
+IMPORTANT: Keep the code SHORT. Max ~50 lines. No comments, no docstrings. Write minimal, working code. Output ONLY code.`;
                 const code = await kpnRun(agentPrompts.coder.model, coderPrompt);
                 if (!code) {
                     termLog(`  ✗ Pipeline keskeytyi (${file.name})`, '#f85149');
@@ -2274,8 +2317,24 @@ Write the corrected code.`;
             const step5 = fileList.length + (review && !review.toLowerCase().includes('lgtm') ? 5 : 3);
             termLog(`\n<span style="color:#3fb950;font-weight:bold">[${step5}] QA</span> — testit`);
             pipelineStep('qa', 'Testit', 'active', 'Kirjoitetaan testejä');
-            const qaPrompt = `Write a short test file (test_app.py) for this project. Use pytest. Max 3 test functions. Keep it minimal.
+            const qaPrompt = `Write test_app.py using pytest and FastAPI TestClient. Max 3 tests. Output ONLY code.
 
+EXAMPLE:
+from fastapi.testclient import TestClient
+from main import app
+
+client = TestClient(app)
+
+def test_create():
+    r = client.post("/users", params={"name": "Test"})
+    assert r.status_code == 200
+
+def test_list():
+    r = client.get("/users")
+    assert r.status_code == 200
+    assert isinstance(r.json(), list)
+
+PROJECT CODE:
 ${Object.entries(generatedFiles).map(([n, c]) => `--- ${n} ---\n${c}`).join('\n\n')}`;
             const tests = await kpnRun(agentPrompts.qa.model, qaPrompt, false, 512);
             if (tests) generatedFiles['test_app.py'] = tests;