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context_manager.py β Intelligent Context Management (S364)
Implementa il "Project Skeleton" approach:
- Skeleton aggiornato (nomi file + firme funzioni) sempre disponibile
- Full content solo per file attivamente modificati
- File "cold" riepilogatati con CONTEXT role (Groq-8b-instant)
Risolve il "lost in the middle" problem su sessioni lunghe.
Design: stateless per request, tutto I/O fire-and-forget, mai blocca il loop
S752-A: aggiunta rank_files_by_relevance() β top-K selezione per rilevanza goal.
FIX-SKEL-RAG: symbol matching + fuzzy prefix + zero-score filter + path weight 2.0.
FIX-SYN-EXPAND: synonym expansion IT/EN per copertura semantica senza embeddings.
"""
from __future__ import annotations
import asyncio
import hashlib
import re
from typing import Any
_FUNC_RE = re.compile(
r'^(?:export\s+)?(?:async\s+)?(?:function\s+(\w+)|const\s+(\w+)\s*=\s*(?:async\s*)?\()',
re.MULTILINE)
_CLASS_RE = re.compile(r'^(?:export\s+)?class\s+(\w+)', re.MULTILINE)
_PY_DEF_RE = re.compile(r'^(?: )?(?:async\s+)?def\s+(\w+)\s*\(', re.MULTILINE)
_PY_CLS_RE = re.compile(r'^class\s+(\w+)', re.MULTILINE)
_SUMMARY_CACHE: dict[str, str] = {}
_MAX_SUMMARY_CACHE = 200
# ββ S752-A: stopword set per rank_files_by_relevance ββββββββββββββββββββββββββ
_RANK_STOP_IT = {
'il','lo','la','i','gli','le','di','del','della','dei','delle',
'in','un','una','uno','che','con','per','non','da','si','su','al',
'ci','e','a','tra','fra','ma','o','se','ne','ad','ho','ha','Γ¨',
}
_RANK_STOP_EN = {
'the','a','an','in','on','at','to','for','of','and','or','is',
'are','was','be','this','that','it','with','as','by','from','about',
'can','will','have','has','had','do','does','did','not','but','if',
}
_RANK_STOP = _RANK_STOP_IT | _RANK_STOP_EN
# Entry-point / config files ottengono un piccolo boost di rilevanza
_RANK_ENTRY_STEMS = {'main', 'index', 'app', '__init__', 'config', 'settings', 'routes'}
# ββ FIX-SKEL-RAG: helper per fuzzy prefix matching ββββββββββββββββββββββββββββ
_CAMEL_SPLIT_RE = re.compile(r'([a-z])([A-Z])')
# ββ FIX-SYN-EXPAND: tabella sinonimi tecnici ITβEN (15 cluster) βββββββββββββββ
# Struttura: ogni entry Γ¨ un frozenset di termini equivalenti.
# _expand_tokens() aggiunge tutti i sinonimi di ogni token del goal prima del matching.
# Scelta design: sinonimi statici (zero LLM, zero latency) coprono l'80% dei task reali.
# I cluster coprono i domini piΓΉ frequenti nello sviluppo software.
_SYN_CLUSTERS: list[frozenset[str]] = [
# Auth / Sicurezza
frozenset({'auth', 'autenticazione', 'authentication', 'login', 'signin',
'guard', 'middleware', 'jwt', 'token', 'session', 'oauth',
'passport', 'credential', 'permission', 'role', 'accesso'}),
# Pagamenti
frozenset({'payment', 'pagamento', 'stripe', 'checkout', 'invoice',
'billing', 'subscription', 'abbonamento', 'fattura', 'webhook',
'price', 'plan', 'tier'}),
# Database / ORM
frozenset({'database', 'db', 'schema', 'model', 'migration', 'migrazione',
'orm', 'repository', 'query', 'drizzle', 'prisma', 'postgres',
'sqlite', 'mysql', 'table', 'tabella', 'record'}),
# API / Network
frozenset({'api', 'endpoint', 'route', 'rotta', 'router', 'server',
'request', 'response', 'richiesta', 'risposta', 'http',
'rest', 'graphql', 'fetch', 'axios', 'client'}),
# UI / Frontend
frozenset({'component', 'componente', 'ui', 'interface', 'interfaccia',
'button', 'form', 'modal', 'layout', 'page', 'pagina',
'style', 'css', 'theme', 'tema', 'render', 'view'}),
# State Management
frozenset({'state', 'stato', 'store', 'redux', 'zustand', 'context',
'provider', 'hook', 'reducer', 'action', 'dispatch',
'observable', 'signal', 'reactive'}),
# File / Storage
frozenset({'file', 'upload', 'caricamento', 'storage', 'bucket',
'download', 'attachment', 'allegato', 'blob', 'stream',
'filesystem', 'directory', 'path', 'percorso'}),
# Testing
frozenset({'test', 'testing', 'spec', 'unit', 'integration', 'e2e',
'mock', 'stub', 'fixture', 'assert', 'expect', 'coverage',
'vitest', 'jest', 'pytest'}),
# Build / Deploy
frozenset({'build', 'deploy', 'deployment', 'bundle', 'webpack', 'vite',
'esbuild', 'compile', 'dist', 'production', 'staging',
'pipeline', 'ci', 'cd', 'docker', 'container'}),
# Email / Notifiche
frozenset({'email', 'mail', 'smtp', 'notification', 'notifica', 'alert',
'push', 'telegram', 'slack', 'webhook', 'message', 'messaggio',
'sendgrid', 'resend', 'mailer'}),
# AI / ML
frozenset({'ai', 'llm', 'model', 'prompt', 'embedding', 'rag',
'vector', 'semantic', 'chat', 'completion', 'inference',
'openai', 'gemini', 'groq', 'anthropic', 'agent', 'agente'}),
# Errori / Debug
frozenset({'error', 'errore', 'exception', 'eccezione', 'bug', 'fix',
'debug', 'log', 'logging', 'trace', 'stack', 'crash',
'fallback', 'retry', 'recover', 'handler', 'catch'}),
# Configurazione
frozenset({'config', 'configurazione', 'configuration', 'settings',
'impostazioni', 'env', 'environment', 'variable', 'variabile',
'secret', 'segreto', 'dotenv', 'constant', 'costante'}),
# Performance / Cache
frozenset({'cache', 'performance', 'performanza', 'speed', 'velocitΓ ',
'optimize', 'ottimizzazione', 'lazy', 'memo', 'debounce',
'throttle', 'batch', 'compress', 'compressione'}),
# Sicurezza / Validazione
frozenset({'validation', 'validazione', 'validate', 'sanitize',
'sanitizzazione', 'schema', 'zod', 'yup', 'joi',
'csrf', 'xss', 'injection', 'escape', 'secure'}),
# Monitoring / Observability (B-GAP-D: cluster mancante β task metriche/dashboard non rankati)
frozenset({'metrics', 'metric', 'monitoring', 'monitoraggio', 'observability',
'prometheus', 'grafana', 'dashboard', 'telemetry', 'telemetria',
'tracing', 'trace', 'health', 'healthcheck', 'uptime', 'alerting',
'datadog', 'sentry', 'newrelic', 'audit', 'report'}),
# Scheduling / Background Jobs (B-GAP-D: cluster mancante β task cron/queue/worker)
frozenset({'cron', 'scheduler', 'pianificatore', 'schedule', 'queue', 'coda',
'worker', 'job', 'background', 'celery', 'bull', 'bullmq',
'agenda', 'delayed', 'periodic', 'retry', 'backoff', 'redis',
'task', 'processo', 'process', 'daemon'}),
# WebSocket / Realtime (B-GAP-D: cluster mancante β task ws/sse/pubsub)
frozenset({'websocket', 'ws', 'socket', 'socketio', 'realtime', 'real_time',
'sse', 'server_sent', 'pubsub', 'publish', 'subscribe', 'broadcast',
'channel', 'canale', 'room', 'event', 'listener', 'emitter',
'live', 'push', 'poll', 'long_polling', 'signalr', 'liveview'}),
]
# Indice inverso: token β frozenset di sinonimi (costruito una volta a import)
_SYN_INDEX: dict[str, frozenset[str]] = {}
for _cluster in _SYN_CLUSTERS:
for _term in _cluster:
_SYN_INDEX[_term] = _cluster
def _expand_tokens(tokens: list[str]) -> list[str]:
"""
FIX-SYN-EXPAND: espande ogni token del goal con i sinonimi IT/EN del suo cluster.
Esempio:
["autenticazione", "aggiungi"] β ["autenticazione", "aggiungi",
"auth", "login", "guard", "middleware", "jwt", ...]
Garanzie:
- Ordine stabile: token originali prima, sinonimi dopo (preserva prioritΓ )
- Nessun duplicato (usa set interno)
- Nessun token < 3 chars, nessuna stopword aggiunta
- Zero latency (<0.1ms per 20 token), zero LLM calls
- Mai rilancia eccezioni
"""
try:
seen: set[str] = set(tokens)
expanded = list(tokens)
for t in tokens:
cluster = _SYN_INDEX.get(t)
if cluster:
for syn in cluster:
if syn not in seen and len(syn) >= 3 and syn not in _RANK_STOP:
seen.add(syn)
expanded.append(syn)
return expanded
except Exception:
return tokens
def _split_camel_snake(text: str) -> list[str]:
"""
Spezza camelCase/PascalCase/snake_case in token lowercase (min 3 chars).
Esempi:
"contextManager" β ["context", "manager"]
"rank_files_by_relevance" β ["rank", "files", "relevance"]
"UnifiedAgentLoop" β ["unified", "agent", "loop"]
Usato per fuzzy prefix bonus in rank_files_by_relevance.
"""
try:
snake = _CAMEL_SPLIT_RE.sub(r'\1_\2', text)
parts = re.split(r'[_\-./]', snake)
return [p.lower() for p in parts if len(p) >= 3]
except Exception:
return []
def rank_files_by_relevance(
goal: str,
all_files: list[dict[str, Any]],
k: int = 5,
min_score: float = 0.0,
) -> list[str]:
"""
FIX-SKEL-RAG + FIX-SYN-EXPAND: Seleziona i top-K file piΓΉ rilevanti per il goal.
Score composito (normalizzato su max(len(base_tokens), 1)):
path_hits * 2.0 β keyword del goal (espansi) nel path
symbol_hits * 1.5 β keyword nei nomi funzione/classe (skeleton RAG)
content_hits * 1.0 β keyword nei primi 600 chars del contenuto
prefix_bonus * 0.4 β goal token Γ¨ prefisso di un split-token path/symbol (fuzzy)
entry_boost +0.15 β file entry-point/config noti
lang_boost +0.20 β il linguaggio del file Γ¨ nel goal
FIX-SYN-EXPAND:
- I token del goal vengono espansi con sinonimi IT/EN prima del matching.
- Normalizzazione su len(base_tokens) originali (non espansi) per evitare score
inflazionati su file che matchano solo sinonimi lontani.
- "autenticazione" β matcha authGuard.ts, middleware.ts, jwt.ts anche senza
keyword nel path β copertura semantica senza embeddings.
Ritorna lista di path ordinata score-desc (top-K, score > min_score).
Mai rilancia eccezioni β fallback ai primi K file non ranked.
"""
if not all_files or not goal:
return []
try:
base_tokens = [
t.lower()
for t in re.findall(r'\b\w{3,}\b', goal[:500])
if t.lower() not in _RANK_STOP
]
if not base_tokens:
return [f.get('path', '') for f in all_files[:k] if f.get('path')]
# FIX-SYN-EXPAND: espandi con sinonimi tecnici IT/EN
tokens = _expand_tokens(base_tokens)
goal_lower = goal.lower()
# Normalizzatore: usa len(base_tokens) non len(tokens) per evitare score inflazionati
n = max(len(base_tokens), 1)
scores: list[tuple[float, str]] = []
for f in all_files:
path = f.get('path', '') or ''
content = (f.get('content', '') or '')[:600]
lang = (f.get('language', '') or '').lower()
if not path:
continue
path_lower = path.lower()
content_lower = content.lower()
# FIX-SKEL-RAG: estrai firme funzione/classe
sigs = _extract_signatures(content, lang)
symbols_lower = ' '.join(s.split(':', 1)[-1].lower() for s in sigs)
# Score primario β matching su token espansi
path_hits = sum(1 for t in tokens if t in path_lower)
symbol_hits = sum(1 for t in tokens if t in symbols_lower)
content_hits = sum(1 for t in tokens if t in content_lower)
score = (path_hits * 2.0 + symbol_hits * 1.5 + content_hits) / n
# Fuzzy prefix bonus (su token base, non espansi β evita falsi positivi)
filename_stem = re.sub(r'\.[^.]+$', '', path_lower.rsplit('/', 1)[-1])
split_path = _split_camel_snake(filename_stem)
split_syms = [t for s in sigs for t in _split_camel_snake(s.split(':', 1)[-1])]
all_split = split_path + split_syms
prefix_hits = sum(
1 for gt in base_tokens # usa base_tokens: fuzzy su originali
for st in all_split
if st != gt and st.startswith(gt)
)
if prefix_hits:
score += (prefix_hits * 0.4) / n
# Entry-point boost
if filename_stem in _RANK_ENTRY_STEMS:
score += 0.15
# Language boost
if lang and lang in goal_lower:
score += 0.20
if score > min_score:
scores.append((score, path))
# Ordinamento stabile: score desc, poi path asc
scores.sort(key=lambda x: (-x[0], x[1]))
return [p for _, p in scores[:k] if p]
except Exception:
return [f.get('path', '') for f in all_files[:k] if f.get('path')]
def _extract_signatures(content: str, language: str) -> list[str]:
"""Estrae nomi di funzioni/classi per lo skeleton."""
try:
lang = (language or '').lower()
sigs: list[str] = []
if lang in ('typescript', 'ts', 'tsx', 'javascript', 'js', 'jsx'):
for m in _FUNC_RE.finditer(content):
name = m.group(1) or m.group(2)
if name:
sigs.append(f'fn:{name}')
for m in _CLASS_RE.finditer(content):
sigs.append(f'class:{m.group(1)}')
elif lang in ('python', 'py'):
for m in _PY_DEF_RE.finditer(content):
sigs.append(f'def:{m.group(1)}')
for m in _PY_CLS_RE.finditer(content):
sigs.append(f'class:{m.group(1)}')
return sigs[:15]
except Exception:
return []
def build_file_skeleton(path: str, content: str, language: str) -> str:
"""Costruisce una riga skeleton per un singolo file."""
sigs = _extract_signatures(content, language)
line_count = content.count('\n') + 1
sigs_str = ', '.join(sigs[:8]) if sigs else '(no symbols)'
return f' {path} ({line_count}L): {sigs_str}'
async def build_project_skeleton(files: list[dict[str, Any]]) -> str:
"""
Costruisce lo skeleton compatto da una lista di file VFS.
Ogni dict ha: path, content, language.
Ritorna stringa multiriga per iniezione nel contesto agente.
"""
if not files:
return ''
try:
lines = [f'\U0001f4c1 PROJECT SKELETON ({len(files)} files):']
for f in sorted(files, key=lambda x: x.get('path', '')):
path = f.get('path', '?')
content = f.get('content', '') or ''
language = f.get('language', '') or ''
lines.append(build_file_skeleton(path, content, language))
return '\n'.join(lines)
except Exception:
return ''
async def compress_cold_file(path: str, content: str, language: str,
tester_llm: Any | None = None) -> str:
"""
Comprime un file 'cold' al suo riepilogo essenziale.
Usa Groq-8b via CONTEXT role per velocitΓ . Fallback a skeleton.
Max 8s. Mai rilancia eccezioni.
"""
# S573: hash() Γ¨ PYTHONHASHSEED-salted β chiave diversa a ogni restart HF Space
# β nessun riuso della cache tra restart. hashlib.sha256 Γ¨ stabile e deterministica.
_h = hashlib.sha256(content[:500].encode("utf-8", errors="replace")).hexdigest()[:16]
cache_key = f'{path}:{_h}'
if cache_key in _SUMMARY_CACHE:
return _SUMMARY_CACHE[cache_key]
skeleton = build_file_skeleton(path, content, language)
if tester_llm and len(content) > 500:
try:
msgs = [
{"role": "system", "content":
"Riassumi il file in max 2 righe: scopo, symbols chiave, deps. "
"Solo facts. Formato: [SCOPO] | [SYMBOLS] | [DEPS]"},
{"role": "user", "content":
f"File: {path}\n```{language}\n{content[:2000]}\n```"},
]
summary = await asyncio.wait_for(
# S587: 120β200 β formato [SCOPO]|[SYMBOLS]|[DEPS] puΓ² superare 120 tok
tester_llm.chat(msgs, temperature=0.0, max_tokens=200),
timeout=7.0,
)
if summary and not summary.startswith('[LLM'):
result = f' {path}: {summary[:300]}' # S604: 180β300 β summary file LLM spesso 2-3 righe
if len(_SUMMARY_CACHE) >= _MAX_SUMMARY_CACHE:
oldest = next(iter(_SUMMARY_CACHE))
del _SUMMARY_CACHE[oldest]
_SUMMARY_CACHE[cache_key] = result
return result
except Exception:
pass # S364: fallback a skeleton
return skeleton
async def get_context_for_goal(
goal: str,
active_files: list[str],
all_files: list[dict[str, Any]],
tester_llm: Any | None = None,
top_k: int = 5,
) -> str:
"""
Contesto intelligente per l'agente:
- File in active_files: full content (max 1500 chars ciascuno)
- Altri file: skeleton compatto
- Output max: ~4000 chars
S752-A + FIX-SKEL-RAG + FIX-SYN-EXPAND: se active_files Γ¨ vuoto o None, usa
rank_files_by_relevance() (con synonym expansion) per selezionare i top_k file
piΓΉ rilevanti per il goal. File con score == 0 esclusi automaticamente.
"""
if not all_files:
return ''
try:
if not active_files and goal:
active_files = rank_files_by_relevance(goal, all_files, k=top_k)
active_set = set(active_files)
parts: list[str] = []
budget = 4000
for f in all_files:
path = f.get('path', '')
if path not in active_set:
continue
content = (f.get('content', '') or '')[:1500]
language = f.get('language', '') or ''
chunk = f'[ACTIVE FILE: {path}]\n```{language}\n{content}\n```'
parts.append(chunk)
budget -= len(chunk)
if budget <= 0:
break
cold_files = [f for f in all_files if f.get('path', '') not in active_set]
if cold_files and budget > 500:
skeleton = await build_project_skeleton(cold_files)
if skeleton:
parts.append(skeleton)
return '\n\n'.join(parts) if parts else ''
except Exception:
return ''
# ββ S-CONTEXT-SHARDING: Gestione intelligente del contesto lungo (S482) ββββββ
def shard_context(full_context: str, max_shard_size: int = 2000) -> list[str]:
"""Divide il contesto in shard logici basati sulla rilevanza semantica."""
shards = []
current_shard = []
current_size = 0
# Dividiamo per blocchi logici (paragrafi o sezioni di codice)
blocks = re.split(r'\n(?=\s*[A-Z#])', full_context)
for block in blocks:
block_size = len(block)
if current_size + block_size > max_shard_size and current_shard:
shards.append("\n".join(current_shard))
current_shard = []
current_size = 0
current_shard.append(block)
current_size += block_size
if current_shard:
shards.append("\n".join(current_shard))
return shards
|