Lobster

Name: Lobster
Availability: InStock
Author: cfcosta

Supports UI

by cfcosta

Local, deterministic, per-repo memory system that captures decisions and context for Claude Code.

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Works in:claude

Exposes:Tools

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What it does

Lobster is a specialized memory system for Claude Code that automatically captures architectural decisions, constraints, and problem-solving context within a specific repository. It uses hooks to intercept interactions and an MCP server to provide deep recall capabilities.

Tools

memory_context: Returns a ranked bundle of decisions and summaries for the current situation.
memory_search: Search memory for ranked hits with snippets.
memory_recent: Lists the newest ready artifacts.
memory_decisions: Returns a timeline of decisions with rationale.
memory_neighbors: Traverses the semantic graph from a specific entity.
memory_status: Provides diagnostics on the processing state.

Installation

Add the following to your .mcp.json:

{
  "mcpServers": {
    "lobster": {
      "command": "lobster",
      "args": ["mcp"]
    }
  }
}

Supported hosts

Primarily designed and confirmed for Claude Code.

Quick install

nix profile install github:cfcosta/lobster && lobster init

Information

Pricing: free
Published: 5/31/2026
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