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Homelab Brief - Obsidian as Long-Term Memory for an LLM · Big Iron Radio

• 0:02
  Welcome to the Homelab Brief from Big Iron.
• 0:06
  Today, giving an LLM agent real long-term memory
• 0:10
  using an obsidian vault over MCP.
• 0:14
  Quick note, this is an AI voice drawn from a Big Iron guide.
• 0:18
  Links below.
• 0:20
  The goal is one line.
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  Give an agent persistent, human-readable memory
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  and make that memory a plane marked on vault
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  reached through an MCP server.
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  The human-readable part is the whole point.
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  Why a marked on vault instead of some opaque vector blob?
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  Because it's dual-use.
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  It's the agent's memory and your note's one shared corpus,
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  not a black box.
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  You can open it in obsidian and read exactly what the agent believes,
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  fix it if it's wrong, or delete it if it's obsolete.
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  That's the curate-your-eyes-memory property,
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  the whole approach is built around.
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  Each memory is a small note, and two things carry the weight.
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  The one-line description does real work,
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  it's what ranks the note for relevance,
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  and what the agent reads to decide whether to open the full thing,
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  so write it specific.
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  And a Wikilink at the end connects it to a related note,
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  which is how the vault becomes a navigable graph instead of a flat pile.
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  A link to a note that doesn't exist yet is fine,
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  it just marks something worth writing later.
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  The MCP layer is small.
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  Read tools keyword search, semantic search, read a note,
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  list recent and write tools create a note, update, or append.
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  That's the recall half and the memory formation half.
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  And it runs as a loop.
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  Recall work remember.
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  At the start, the agent searches the vault
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  and reads the relevant notes,
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  so it's no longer starting blank.
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  It does the work informed.
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  Then it writes back the durable outcomes to duplicating,
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  not spawning near copies.
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  Next session, maybe on a different machine because the vault sinks,
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  it recalls what it just recorded.
• 2:02
  Knowledge compounds instead of evaporating.
• 2:05
  The full setup's in the show notes.
• 2:07
  That's your brief.