Asymptotic Ethics Model

An agent-based simulation testing whether a post-scarcity governance framework — built on Elinor Ostrom's commons-governance principles — actually holds up when implemented and adversarially stress-tested, rather than just argued for in theory. Includes a working MCP server that exposes the simulation as callable tools for AI agents, and a stateless "governance primitive" that lets an agent check whether a proposed action complies with the framework's rules, verified against the simulation's own logic rather than reimplemented from a description of it.

License: Apache 2.0. Core dependency: Mesa (agent-based modeling in Python).

What makes this worth a look

Most of what's genuinely worth reading here isn't the simulation's existence — it's the discipline behind it. Every mechanism was built expecting to find its own failure mode, and several real bugs, exploits, and false conclusions were caught and fixed as a direct result, not hidden after the fact:

• A hard-threshold emergency-governance mechanic was found to produce permanent crisis rule under default conditions (~70–90% of the time), not occasional intervention — a concrete demonstration of a real AI governance risk. It was redesigned around consent (a citizen vote) rather than force, and the same pattern was later reused for ecological limits and shared-resource conflicts.
• Democratic policy voting was tested directly and found genuinely vulnerable to capture: free-riding strategies, forming a numerical majority, voted themselves into the most exploitable governance policy — a real result, not a hypothetical concern about democracy.
• A reputation-reward mechanism was found to let free-riders launder unearned resources into status before being fixed; a barter-economy value function was found to make trading a strictly worse strategy than isolation before being fixed; an evolutionary fitness metric was found to collapse an entire economy into monoculture before being fixed.
• The "governance primitive" compliance rules are extracted verbatim from the simulation's real decision logic and verified by capturing actual votes and transfers from a live run — not just checked against themselves, which would prove nothing.

The full record of every finding, bug, and fix — in the order it happened — is in FINDINGS.md.

Quick start

pip install mesa pytest mcp networkx numpy

from asymptotic_ethics_model import AsymptoticEthicsModel

m = AsymptoticEthicsModel(200, 8, seed=1, coupled_governance=True,
                             rehabilitation_enabled=True, graduation_enabled=True)
for _ in range(300):
    m.step()

df = m.datacollector.get_model_vars_dataframe()
df.tail(10)

Run the regression suite before trusting any change:

pytest test_asymptotic_ethics_model.py -v

To run the MCP server (exposes the simulation as tools for an MCP client like Claude Desktop — see the header comment in asymptotic_ethics_mcp_server.py for exact client configuration):

python3 asymptotic_ethics_mcp_server.py

What's in this repo

Architecture

• Citizen — behavioral strategy, resources, reputation, contribution, relational affinities, experience. Pays effort_cost = contribution ** 2 unless post_labor_economy_enabled.
• CommunityNode — governance policy, care_load, crisis_severity, emergency_declared, plus (depending on which subsystems are enabled) federated trust/reserves, latency/distance state, and the raw-material economy's production and trade state.
• SystemLedger — two genuinely separate roles: a migration-decision helper, and ship_raw_materials(), which is structurally blind to everything except raw material levels — verified by direct source inspection in the test suite, not just claimed in a docstring.
• AsymptoticEthicsModel — orchestrates every subsystem, all opt-in, all defaulted to preserve original behavior when disabled.

Two full resource-allocation architectures exist side by side and are directly comparable: a centralized ledger, and a fully federated network of local commons using peer-to-peer trust-based negotiation — including under simulated communication latency, relevant to any framing involving distributed or off-world coordination.

Honest scope

This is a stylized research simulation — scripted behavioral strategies, not adaptive agents; no physical production; no real politics. It tests whether a governance framework's internal logic holds together and surfaces concrete, reproducible failure modes when you actually try to break it. It does not, and cannot, prove the framework would work if built by real institutions with real humans in them. Read FINDINGS.md for exactly what's been tested, what's been found broken and fixed, and what's still an open question.