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feat(plugin): expose KB UUIDs in query variables and pass session context to retrieve API

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Extract knowledge base UUID list into query.variables['_knowledge_base_uuids']
in PreProcessor so plugins can modify it during PromptPreProcessing. Runner now
reads from variables instead of pipeline_config. Also pass session_name,
bot_uuid, and sender_id to kb.retrieve() in the RETRIEVE_KNOWLEDGE_BASE handler
so knowledge engines receive proper session context.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
youhuanghe
2026-03-13 14:23:19 +00:00
parent 6896a55485
commit eec0a9c9d9
3 changed files with 17 additions and 8 deletions
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src/langbot/pkg/pipeline/preproc/preproc.py
+10
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@@ -176,6 +176,16 @@ class PreProcessor(stage.PipelineStage):
query.variables['user_message_text'] = plain_text
query.user_message = provider_message.Message(role='user', content=content_list)
# Extract knowledge base UUIDs into query variables so plugins can modify them
# during PromptPreProcessing before the runner performs retrieval.
kb_uuids = query.pipeline_config['ai']['local-agent'].get('knowledge-bases', [])
if not kb_uuids:
old_kb_uuid = query.pipeline_config['ai']['local-agent'].get('knowledge-base', '')
if old_kb_uuid and old_kb_uuid != '__none__':
kb_uuids = [old_kb_uuid]
query.variables['_knowledge_base_uuids'] = list(kb_uuids)
# =========== 触发事件 PromptPreProcessing
event = events.PromptPreProcessing(