Ninth in the series is a smaller companion to Superpowers (post two), also from obra: private-journal-mcp – Private Journal MCP for short – an MCP server that gives Claude somewhere to keep notes across sessions that aren’t part of the visible conversation.
What it actually stores
The journal is split into sections – feelings, project notes, technical insights, user context, and general world knowledge – and each entry is searchable via local AI semantic search rather than plain keyword lookup, so a later session can pull up something relevant even if the wording doesn’t match exactly. Storage is dual: project-local entries for things specific to the repo you’re in, and a user-global journal for anything that should follow you across projects.
Why a “private” journal specifically
The framing here is deliberate – this isn’t a shared team log or a commit-adjacent changelog, it’s closer to scratch space for the agent to record things worth remembering that don’t belong in code comments or commit messages: a workaround that worked, a preference you mentioned once, a dead end that isn’t worth revisiting. Reporecall (last week’s post) handles memory of the code; this handles memory of everything around the code.
Installing it
It’s part of the same superpowers-marketplace covered in post two:
/plugin install private-journal-mcp@superpowers-marketplaceIt can also be installed standalone from its own repository if you don’t want the rest of the Superpowers bundle alongside it.
Next Sunday: Zero, a plugin that gives Claude runtime access to thousands of paid tools and APIs with no config and no API keys to manage.
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