Files
odysseus/src/browser_observation.py
T
nopoz bebf53be3c fix(agent): make preview and browser output parsers linear (#7003)
Six regexes over tool output backtracked polynomially on long whitespace
runs or repeated openers: the browser snapshot generic-line filter and
post-interaction split, the task-row and skill-bullet parsers, the email
"no results" check, and the Google /sorry/ interstitial check.

Rewrite each without overlapping quantifiers, keeping the same matches for
the text these tools emit. Move the /sorry/ check into
is_google_sorry_url() so it can be tested.
2026-10-30 22:46:19 -07:00

68 lines
2.9 KiB
Python

"""Readable, bounded browser evidence without duplicate reference dictionaries."""
import json
import re
def compact_browser_observation(value, budget=8000):
notices, pages = [], []
def visit(item):
if isinstance(item, list):
for child in item:
visit(child)
elif isinstance(item, dict):
if item.get('error'):
notices.append('Error: ' + str(item['error'])[:1000])
if item.get('exit_code') not in (None, 0):
notices.append('Exit code: ' + str(item['exit_code']))
if item.get('success') is False:
notices.append('Browser command failed.')
snapshot = item.get('snapshot') or item.get('text')
if item.get('title'):
notices.append('Title: ' + str(item['title']))
url = item.get('url') or item.get('origin')
if isinstance(snapshot, str) and snapshot.strip():
# Snapshot text already contains labels and refs in DOM order.
# The refs mapping repeats them and buries menus in raw JSON.
lines = [line for line in snapshot.splitlines()
if not re.fullmatch(r'\s*(?:-\s*)?generic(?:\s+\[ref=e\d+\])?:?\s*', line)]
pages.append(('URL: ' + str(url) + '\n' if url else '') + '\n'.join(lines))
elif url:
notices.append('URL: ' + str(url))
for key in ('result', 'output'):
if key in item:
visit(item[key])
elif isinstance(item, str):
try:
parsed = json.loads(item)
except (ValueError, TypeError):
# CLI status text precedes the JSON post-interaction state.
# Labels are one line; stopping at \n keeps the split linear.
parts = re.split(r'\n\n\[(?:post-[^\]\n]+|page state after failed [^\]\n]+)\]\n', item)
if len(parts) > 1:
for part in parts:
visit(part)
elif item.strip():
notices.append(item.strip())
else:
if isinstance(parsed, (dict, list)):
visit(parsed)
else:
notices.append(str(parsed))
visit(value)
if not notices and not pages:
notices.append(json.dumps(value, ensure_ascii=False))
prefix = '\n'.join(dict.fromkeys(notices))[:2000]
body = pages[-1] if pages else ''
if not pages:
prefix = '\n'.join(dict.fromkeys(notices))
text = (prefix + '\n\n' + body).strip()
if len(text) <= budget:
return text
hint = '\n[Page observation shortened at line boundaries. Use a focused snapshot/read to inspect omitted content; do not guess refs.]\n'
room = budget - len(hint)
head = text[:room * 2 // 3].rsplit('\n', 1)[0]
tail = text[-room // 3:].split('\n', 1)[-1]
return head + hint + tail