hivemind

A Claude Code plugin that runs MiroFish-style social simulations. Provide seed material (articles, scenarios, prediction questions), and the plugin generates agent personas, runs multi-round simulations with independent subagents, and produces HTML analysis reports.

How it works

1. Init — Extract stakeholders from seed material, generate rich personas (~2000 words each), map relationships
2. Run — Each round: activate agents by probability, batch by influence (early/mid/late), dispatch one independent subagent per agent per batch in parallel
3. Report — Analyze emergent dynamics, interview pivotal agents, generate self-contained HTML report

Each agent is a stateless, independent LLM call — matching the MiroFish/OASIS architecture. A JSON state file serves as external memory (replacing Zep/Neo4j). Agents see only their persona, opinion history, and a filtered feed of recent posts.

Architecture

• 1 fresh subagent per persona per round — no single-agent role-playing shortcuts
• 3 influence-weighted batches per round — high-influence agents speak first, setting the tone
• JSON state as external memory — read before each round, written after all batches complete
• PreToolUse hook — blocks background Agent calls that would fall back to single-agent mode

Install

# Add the marketplace
claude plugins marketplace add madiha-right/hivemind

# Install the plugin
claude plugins install hivemind@hivemind

Usage

/hivemind

Then provide seed material (paste text, reference a file, or describe a scenario). The plugin handles persona generation, simulation, and reporting.

Files

.claude-plugin/
  plugin.json          # Plugin manifest
  marketplace.json     # Marketplace config
  skills/
    hivemind/
      SKILL.md           # Main orchestrator skill
      references/
        persona-guide.md # Persona generation template
        report-guide.md  # HTML report generation guide
  agents/
    hivemind-agent.md    # Single-agent-per-round definition
  hooks/
    hooks.json           # PreToolUse hook config
    check-hivemind-agent # Blocks background Agent calls
    run-hook.cmd         # Cross-platform hook runner

Credits

• Architecture inspired by MiroFish and OASIS
• Author: Madiha
• License: MIT