memharness 0.1.0: initial public release

Bi-temporal, provenance-carrying memory for AI agents. One SQLite file, no LLM or network calls in the storage layer, exposed to any agent over MCP.

Three semantics most agent memory skips

• Bi-temporal: ask "what did you believe on March 1st?" (valid time tracked separately from when the agent learned it)
• Supersession, never deletion: corrections close the old fact and link it forward, so history is auditable
• Provenance per fact: "why do you believe that?" and "forget everything from that session"

Quick start (Claude Code)

claude mcp add memharness -- npx -y @memharness/mcp

Published packages

• @memharness/core@0.1.0
• @memharness/embed@0.1.0 (optional local embeddings for hybrid recall; not installed by default)
• @memharness/mcp@0.1.1 (MCP server; 0.1.1 adds an mcp bin so the npx quick-start resolves)

See the README for the comparison table, when (and when not) to use it, and a worked example.