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Mastra Memory

Mastra Memory system guide - storage backends, message history, observational memory, working memory, semantic recall, and thread management. Covers Memory class options (lastMessages, semanticRecall, workingMemory schemas, observationalMemory), resourceId/threadId scoping, listing and resuming a user's threads, and per-user conversation state at scale.

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Mastra Memory System Development

Comprehensive guide for configuring Mastra memory systems. Covers storage backends, message history, observational memory (auto fact extraction), working memory (structured state), semantic recall (embedding-based), and thread management. Memory features are configured via options, not processor classes.

Usage

/mastra-memory

Provides context for:

  • Memory class constructor with options-based config
  • Storage backends (LibSQLStore, PostgresStore, UpstashStore)
  • options.lastMessages for message history
  • options.semanticRecall for embedding-based recall
  • options.workingMemory for structured state
  • options.observationalMemory for fact extraction
  • Thread management and cloning
  • Agent integration via memory property

artsmc/claude-dev-agents/tree/main/skills/mastra-memory commit 9d85f6806d

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npx skillmds@latest add artsmc-claude-dev-agents/mastra-memory