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Merge PR #1191: fix base64 images stored in session history causing context overflow

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Re-bin
2026-02-26 02:43:50 +00:00
parent 4eb44cfb5c a1440cf4cb
commit a77add9d8c
2 changed files with 9 additions and 2 deletions
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8
nanobot/agent/loop.py
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@@ -469,6 +469,14 @@ class AgentLoop:
content = entry["content"] content = entry["content"]
if len(content) > self._TOOL_RESULT_MAX_CHARS: if len(content) > self._TOOL_RESULT_MAX_CHARS:
entry["content"] = content[:self._TOOL_RESULT_MAX_CHARS] + "\n... (truncated)" entry["content"] = content[:self._TOOL_RESULT_MAX_CHARS] + "\n... (truncated)"
if entry.get("role") == "user" and isinstance(entry.get("content"), list):
entry["content"] = [
{"type": "text", "text": "[image]"} if (
c.get("type") == "image_url"
and c.get("image_url", {}).get("url", "").startswith("data:image/")
) else c
for c in entry["content"]
]
entry.setdefault("timestamp", datetime.now().isoformat()) entry.setdefault("timestamp", datetime.now().isoformat())
session.messages.append(entry) session.messages.append(entry)
session.updated_at = datetime.now() session.updated_at = datetime.now()

1
nanobot/utils/helpers.py
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@@ -3,7 +3,6 @@
from pathlib import Path from pathlib import Path
from datetime import datetime from datetime import datetime
def ensure_dir(path: Path) -> Path: def ensure_dir(path: Path) -> Path:
"""Ensure a directory exists, creating it if necessary.""" """Ensure a directory exists, creating it if necessary."""
path.mkdir(parents=True, exist_ok=True) path.mkdir(parents=True, exist_ok=True)