mimic-concordia 0.2.0a0

Mimic 2.0 wrapper around DeepMind Concordia v2.0.1 — the import-stability layer for the Concordia fork (Plan §9.1, ADR 2026-05-22).

mimic-concordia

The Mimic 2.0 wrapper around DeepMind Concordia v2.0.1.

This package is the import-stability layer for Concordia inside the Mimic codebase. Everything that touches Concordia in Mimic should go through mimic_concordia.*, not concordia.* directly. That gives us a single swap point if upstream deprecates, changes shape, or has to be patched.

Plan reference: §9.1. ADR: 2026-05-22-concordia-vendoring-strategy.

What this package is

A pinned-dep wrapper:

• gdm-concordia==2.0.1 is a hard dependency (declared in pyproject.toml).
• mimic_concordia/__init__.py re-exports the upstream concordia package and exposes a version check.
• mimic_concordia._provenance records upstream attribution and the version pin, both for humans and for the NOTICE bot.

What it is not

• Not (yet) a source fork. Concordia upstream's source tree is not in this repo. We control upgrade timing via the pin in pyproject.toml; that is the governance equivalent of vendoring for everything below the "we need to patch internal code" line.
• Not a place to put Mimic-side glue logic. ConcordiaPersonaBuilder and the prefab adapters live in mimic.framework.agents.concordia_runtime, not here. This package only ferries the upstream surface across the wrapper boundary.

Lazy source materialization

If any of the following happen, copy upstream concordia/ into mimic_concordia/_vendor/concordia/ and switch the re-exports to that copy:

1. gdm-concordia is removed from PyPI or the GitHub repo is archived.
2. A required change cannot be expressed at the wrapper boundary (must edit Concordia internals).
3. A regulator or buyer requires source-level provenance beyond a PyPI hash.

When triggered, the protocol is described in the ADR. The downstream mimic_concordia.* import paths are unaffected.

Usage

import mimic_concordia
print(mimic_concordia.__concordia_version__)  # "2.0.1"

# Submodules pass through cleanly:
from mimic_concordia import concordia
from mimic_concordia.concordia import agents, language_model, prefabs

The wrapper raises ImportError if gdm-concordia is missing or its installed version disagrees with the pin. That mismatch is the contract for F-12 step 1.