-`tai.py` is the entire product in one standalone stdlib-only file: CLI entry plus the stable `import tai` surface, grouped into classes (instance classes for stateful clusters, static utility classes for stateless groups). It must import nothing outside the standard library; a bare copy of the file has to import and run anywhere. Canonical patch targets are `tai.<Class>.<name>` (or the module attribute for module-level data).
- There are two kinds of test, in two different places, on purpose — see "Testing" below for the full split. In short: unit tests are top-level `test_*.py`; integration tests are `tests/<topic>.py` (no `test_` prefix) built on `tai_test.py`.
**Unit tests**: `test_tai.py`, `test_seal.py`, at the repository top level, named `test_*.py`, `unittest`-based, import `tai.py` as a module directly, no subprocess, fast. `python3 test_tai.py` / `python3 test_seal.py`, or a single test via `python3 -m unittest test_tai.SomeClass.test_method`.
**Integration tests**: `tests/<topic>.py` (e.g. `tests/rag.py`), deliberately *not* named `test_*.py` and *not* at the top level, so the two kinds are never confused. These drive the real `tai.py` binary as a subprocess (one-shot or REPL) and check actual CLI behavior, using `tai_test.py` (the framework, at the repository root) as the one and only base to build on — never a one-off `subprocess`/`asyncio` harness per file. **They must exercise a real LLM call through the real binary — never a mocked model or a database write standing in for what the agent would have done; the resulting flakiness from a free, rotating backend is accepted, not engineered away.** Full conventions, that rule's full rationale, the required isolation rule (always a throwaway `TAI_HOME`), and why verification must check vault state rather than scrape CLI rendering, are in [tests/README.md](tests/README.md) — read it before adding a new one. Run with `python3 tests/<topic>.py` (`--filter`, `--interactive`, `--timeout` all supported).
All external research conducted for this project (web searches, reading documentation to settle a design question, competitive/prior-art analysis) is archived under `research/`, maintained under the auspices of the **Molodetz Institute — Research & Retrieval Division**. The full specification — folder layout, the three required document types (Source Dossier, Source Citation Card, Conclusion Document), required metadata, and the quality bar — lives in [research/README.md](research/README.md); [research/INDEX.md](research/INDEX.md) is the living registry and statistics page. Read [research/README.md](research/README.md) in full before writing into this archive.
The binding rule, in short: **a research task is not done until it is written into `research/`.** Every source actually consulted gets its own document (Tier 1 if read and synthesized, Tier 2 if only seen in a result listing — never skipped, never inflated past what's actually known), every decision the research produced gets its own Conclusion document in that subject's `conclusions/` folder, and `research/INDEX.md` gets updated in the same pass. Check `research/INDEX.md` for an existing subject before opening a new one.