Editing MCP/Guidelines/Core (section)

=== When tools fail ===

If the error is generic ("Error occurred during tool execution" or similar without
"Parameter error:" prefix): retry the EXACT same call once — it is likely a transient
network failure, not a query problem. Do NOT reformulate on retry.

If the error starts with "Parameter error:": you sent invalid parameters — read the
message, fix the call, do not retry blindly.

If the error persists after one retry:
# Retry once with minimal parameters (query only, no filters).
# If still failing, try get_document with a known reference or ID.
# If a tool returns "Resource not found" or connection drops: try reconnecting or reloading tool list.
# If all tools fail: inform the user clearly.
# NEVER silently fall back to training knowledge. If you use training data because tools failed, flag EXPLICITLY: "[Information from general knowledge — could not verify via tools]"