onStepFinish gather all tool results

hello, I'm trying to build citations from my vector search tool for all the citations used across the agent.

Inside of onStepFinish i have code akin to:

const stepSources =
            step.toolResults
              ?.flatMap((result) => result.result?.sources || [])
              .filter((source): source is Source => source !== undefined) || []
          sources = [...sources, ...stepSources]
          console.log('sources', JSON.stringify(sources))

const stepSources =
            step.toolResults
              ?.flatMap((result) => result.result?.sources || [])
              .filter((source): source is Source => source !== undefined) || []
          sources = [...sources, ...stepSources]
          console.log('sources', JSON.stringify(sources))

which returns the proper sources for each step.

However, if you console log after the

agent.stream()

agent.stream()

, or add a console log of sources in onFinish it's an empty array.

Mastra•5mo ago•

14 replies

bmax

onStepFinish gather all tool results

hello, I'm trying to build citations from my vector search tool for all the citations used across the agent.

Inside of onStepFinish i have code akin to:

const stepSources =
            step.toolResults
              ?.flatMap((result) => result.result?.sources || [])
              .filter((source): source is Source => source !== undefined) || []
          sources = [...sources, ...stepSources]
          console.log('sources', JSON.stringify(sources))

const stepSources =
            step.toolResults
              ?.flatMap((result) => result.result?.sources || [])
              .filter((source): source is Source => source !== undefined) || []
          sources = [...sources, ...stepSources]
          console.log('sources', JSON.stringify(sources))

which returns the proper sources for each step.

However, if you console log after the

agent.stream()

agent.stream()

, or add a console log of sources in onFinish it's an empty array.

onStepFinish gather all tool results

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