Add MCP marketplace launch guide

LAUNCHGUIDE.md

@@ -0,0 +1,59 @@
+# Lians Agent Memory
+
+## Tagline
+
+Local-first, bitemporal memory for agents that need to know what was known when.
+
+## Description
+
+Lians is an open-source MCP memory server for agents that work with facts that
+change over time. It stores valid time and system time separately, retrieves
+knowledge as of a requested point in time, records supersession without erasing
+history, exposes conflict and lineage evidence, and checks backtests for future
+information leakage. The default local mode uses SQLite and requires no hosted
+account or API key.
+
+## Setup Requirements
+
+- `uv` is required so the `uvx` command is available: https://docs.astral.sh/uv/getting-started/installation/
+- No environment variables, credentials, or hosted Lians account are required for local mode.
+- `LIANS_LOCAL_DB` is optional and sets an explicit SQLite database path.
+
+## Category
+
+AI & ML
+
+## Features
+
+- Store and retrieve persistent agent memories
+- Retrieve facts as they were known at a requested point in time
+- Supersede outdated facts while retaining full history
+- Reconstruct the complete knowledge state at a historical time
+- Inspect conflicts and supporting evidence
+- Trace memory lineage and fact history
+- Detect lookahead leakage in time-sensitive agent backtests
+- Run locally with SQLite and no API key
+- Connect through any stdio-compatible MCP client
+
+## Getting Started
+
+- "Remember that Acme's credit rating changed from A to BBB on July 1."
+- "What did we know about Acme's credit rating on June 30?"
+- "Show the history and lineage for Acme's credit rating."
+- "Check whether this backtest used information before it became available."
+- Tool: `remember`, stores a fact with temporal and evidence metadata
+- Tool: `recall`, retrieves current knowledge
+- Tool: `recall_at`, retrieves knowledge at a point in time
+- Tool: `reconstruct`, rebuilds a historical knowledge state
+- Tool: `list_conflicts`, exposes unresolved contradictions
+- Tool: `memory_lineage`, traces source and supersession relationships
+- Tool: `fact_history`, returns a fact's recorded history
+- Tool: `backtest_check`, checks for future information leakage
+
+## Tags
+
+agent-memory, memory, mcp, bitemporal, temporal, point-in-time, audit, lineage, supersession, local-first, sqlite, backtesting, compliance
+
+## Documentation URL
+
+https://github.com/Lians-ai/Lians#readme