feat(ci): tests-python.yml for the Python SDK workspace

.github/workflows/tests.yml

@@ -96,10 +96,12 @@ jobs:
               # Plans and ADRs; plan-docs-unread-by-tests.test.mjs holds the
               # plans half for the `paths:` filter above.
               - '!docs/**'
-              # The Go module, and the Rust crates no binding these jobs build
+              # The Go module, the Python SDK (tests-python.yml runs its
+              # checks), and the Rust crates no binding these jobs build
               # depends on. The auth and profile bindings compile stack-auth and
               # stack-profile, which stay in.
               - '!languages/golang/**'
+              - '!languages/python/**'
               - '!packages/stack-encrypt/**'
               - '!packages/stack-encrypt-derive/**'
               - '!packages/stack-kms/**'

AGENTS.md

@@ -93,7 +93,7 @@ Every npm package except EQL lives under `languages/typescript/`: packages in `l
 - `packages/stack-auth`, `packages/stack-profile`, `packages/stack-kms`, `packages/stack-encrypt`, `packages/stack-encrypt-derive`, `packages/stack-guest-abi`: The Rust crates imported from `cipherstash/cipherstash-suite` with their history — `stack-auth` and `stack-profile` (published to crates.io, one version group), `stack-kms` (published to crates.io from 0.1.0, its own version group, re-exported by `stack-encrypt` as `stack_encrypt::kms`), `stack-encrypt` and `stack-encrypt-derive` (published to crates.io from 0.1.0, one version group; `eql-bindings`' `stack-encrypt` feature depends on them from the registry), and `stack-guest-abi` (`publish = false`). They are the members of the **root Cargo workspace**, with the three node binding crates below. See "Working on the Rust crates".
 - `languages/typescript/packages/auth`, `languages/typescript/packages/profile`, `languages/typescript/packages/stack-auth-wasm`: The node bindings of those crates. `@cipherstash/auth` (napi-rs v2) and its six `platforms/*` packages are published to npm from this repository by `release.yml` (`auth-artifacts`, `publish-auth`); a change to what it ships, the `stack-auth` crate included, needs an `@cipherstash/auth` changeset (`require-auth-npm-changeset.yml`). `@cipherstash/profile` and its platforms are private and never published; `@cipherstash/stack-auth-wasm` is private and builds the wasm that `@cipherstash/auth` ships. Their `build` and `test` scripts never invoke cargo; `build:native`, `build:debug` and `test:cargo` do.
 - `languages/golang`: The Go module — the SDK `encrypt` with its generated-code support `encrypt/gensupport` and the policy packages `encrypt/policy` and `encrypt/policy/protosource`; the credential package `auth`; the generator `stashgen` and its command `cmd/stashgen`; and `internal` (the shared guest plumbing and the `record` wire model). A wazero host with no cgo. Its two WASI guests (`encrypt/guest`, `auth/guest`) are detached Cargo workspaces built by `mise run wasm:guest:build` and `mise run wasm:auth-guest:build`; `mise run wasm:guest:build:deterministic` builds the seeded TEST build the hermetic Go tests use; the `.wasm` files they embed are gitignored. The stack-encrypt guest has a second build with the EQL types (`mise run wasm:guest:build:eql`, cargo feature `eql`, linking `eql-bindings` by path; `wasm:guest:build:eql:deterministic` is its test build), embedded by `encrypt/eql` and registered on import, so a program whose generated code names an EQL type runs it (ADR-0007, amended). `encrypt/eql`'s types and `Types` table are generated from the EQL catalog by `eql-codegen` (`eql_gen.go`, written by `mise run types:generate` in `packages/eql` and drift-gated by `types:check` and `cargo test -p eql-codegen`). Generated `*_stash.go` files are committed and CI fails when `go generate ./...` changes one. Releases are cut by hand with `.github/workflows/release-golang.yml` (`gh workflow run release-golang.yml -f version=X.Y.Z[-pre] --ref <branch>`): because the guests are gitignored on main and Go fetches a version as the files committed at its tag, the workflow builds them, commits them on a release-only commit no branch points at, tags it `languages/golang/vX.Y.Z` and pushes the tag alone, then attaches the EQL v4 SQL bundle to the GitHub release. The ref must carry the EQL v4 bundle, or the build stops at "Build the EQL SQL bundles". `scripts/go-release-version.mjs` refuses, before anything is built, every version Go would refuse (non-canonical semver, `+build` metadata, a v2+ major on a module path with no `/vN` suffix, a version shaped like a pseudo-version), a final version dispatched from anywhere but `main`, and a final version while `languages/golang/go.mod` pins a `github.com/cipherstash/vitaminc/…` module at a pseudo-version (vitaminc's Go bindings have no tags, and a TEMPORARY pin on an unreleased commit must be gone before the module is tagged); a pre-release may come from a branch and may carry such a pin. The build job also refuses a version the Go proxy already lists in `@v/list`, which catches a tag deleted after the proxy fetched it; it never asks the proxy for the version itself before the tag exists, because the proxy would cache "not found" for up to 30 minutes and `verify` would fail after the push. The build checks the `Cargo.lock` of the EQL workspace and both guest workspaces with `--locked` first, since none of those builds passes it. It runs in a job with no write token and hands the guests to a `publish` job that holds `contents: write` and runs only git and gh. `publish` fetches the commit with plain unauthenticated git rather than `actions/checkout`, whose `token` input defaults to the job's writable token, and refuses a release commit whose tree is not the one the build tested. `publish` takes the paths it commits from the workflow's fixed `GUESTS` list, never from the artifact, and refuses a `guests.sha256` that is not exactly one SHA-256 line for each of those three guests: the build job runs third-party code after writing that manifest, so a path read from it could put any file on the tag (`scripts/__tests__/go-release-artifact.test.mjs`). A version is immutable once the Go proxy has fetched it, so a tag is never moved or deleted: if `publish` or `verify` fails after the tag is pushed, use "Re-run failed jobs" on the same run, which keeps a tag that run pushed and creates or completes the release; a new dispatch of the same version is refused. Never tag a main commit by hand: `go get` would fetch a module with no guests.
-- `languages/python`: The Python SDK, `stackencrypt` — a pyo3 extension over `stack-encrypt`, built by maturin. **The fourth Cargo workspace**, excluded from the root one, with two crates: `crates/core` (no pyo3; the engine-side logic, linked and tested without a Python interpreter) and `crates/engine` (the `_engine` cdylib, `abi3-py39`, one wheel per platform for Python 3.9 to 3.14). The `extension-module` feature is set only by maturin in `pyproject.toml`, never in a crate manifest, so `cargo test` links libpython. Its tasks live in its own `mise.toml`, run from that folder: `mise run build` (wheel into `.venv`), `mise run test` (pytest), `mise run test:cargo` (both crates, `--locked`, libpython on the loader path). The wheel's version is `crates/engine/Cargo.toml`'s; `stackencrypt.__engine__` is the commit of this checkout, recorded by `crates/core/build.rs`. Its `Cargo.lock` was seeded from the root one because `stack-encrypt` requires a yanked `cllw-ore` pre-release that a fresh resolve cannot select. Nothing is published; a lockfile for the Python side and the CI workflow are the next tickets (#1383). Design: Python ADR-0001 under `languages/python/docs/adr/`, the spec in #1341.
+- `languages/python`: The Python SDK, `stackencrypt`, a pyo3 extension over `stack-encrypt`, built by maturin. **The fourth Cargo workspace**, excluded from the root one. It has two crates. `crates/core` has no pyo3: the engine-side logic, linked and tested without a Python interpreter. `crates/engine` is the `_engine` cdylib, `abi3-py39`, one wheel per platform for Python 3.9 to 3.14. The `extension-module` feature is set only by maturin in `pyproject.toml`, never in a crate manifest, so `cargo test` links libpython. Its tasks live in its own `mise.toml` and run from that folder. `mise run build` builds the wheel into `.venv`. `mise run test` runs pytest. `mise run test:cargo` runs plain `cargo test --locked` for both crates, with libpython on the loader path. It does not use nextest, and its CI job sets no `MISE_ENV`. The nextest rule under "Working on the Rust crates" is for the root workspace, whose `stack-kms` tests set environment variables. No test in this workspace does, and nextest comes from `mise.test.toml`, which this workspace's CI does not load. The wheel's version is `crates/engine/Cargo.toml`'s. `stackencrypt.__engine__` is the commit of this checkout, recorded by `crates/core/build.rs`. Its `Cargo.lock` is seeded from the root one, so every crate it shares with the root workspace resolves to the version the root tests. After a root dependency moves, re-seed it the same way: copy the root `Cargo.lock` over it and run `cargo metadata --offline` there. That command prunes the copy to what the workspace uses. Until then, `tests-python.yml` fails on `--locked`. Nothing is published. CI is `tests-python.yml`. It runs the Rust checks and pytest on Python 3.9 and 3.14, where `MISE_PYTHON_VERSION` moves a leg off the local version. It then builds one abi3 wheel per FFI platform, uploads them as artifacts, and writes each build time to the job summary. `scripts/__tests__/python-ci.test.mjs` compares its path filter with the workspace's `Cargo.lock` and its wheel matrix with the protect-ffi platform packages. There is no Python lockfile yet: the package has no runtime dependency, so only pytest could be locked. Design: Python ADR-0001 under `languages/python/docs/adr/`, the spec in #1341.
 - `e2e/*`: Cross-package end-to-end tests (package managers, supply chain, Prisma example README)
 - `languages/typescript/examples/*`: Working apps (basic, prisma, supabase-worker)
 - `docs/plans/*`: Internal design plans. User-facing documentation lives at https://cipherstash.com/docs (not in this repo).
@@ -750,13 +750,15 @@ exact pin would stop the suite sharing one `cts-common` with it.
   typings to the committed `native.d.ts`; `index.d.ts` is hand-written. After
   a `#[napi]` change, rebuild and commit `native.d.ts`, or CI's drift guard
   fails.
-- **CI:** `tests-crates.yml` (fmt, clippy, nextest including the trybuild
-  `tests/ui` binary, doctests, rustdoc, the node bindings and
-  `stack-auth-wasm`), `tests-golang.yml` (WASI checks, the guests, the Go
-  module on Linux, macOS and Windows, its PostgreSQL tests against the EQL v4
-  bundle built from the tree — `mise run go:test:postgres` locally — and the
-  live tests), `crap-crates.yml`,
-  `mutants.yml`, `fuzz.yml`, `miri.yml` and `udeps.yml`.
+- **CI:** `tests-crates.yml` runs fmt, clippy, nextest including the trybuild
+  `tests/ui` binary, doctests, rustdoc, the node bindings, and
+  `stack-auth-wasm`. `tests-golang.yml` runs the WASI checks, the guests, the
+  Go module on Linux, macOS, and Windows, and the live tests. It also runs the
+  Go PostgreSQL tests against the EQL v4 bundle built from the tree. Locally
+  that is `mise run go:test:postgres`. `tests-python.yml` runs the Python
+  SDK's two crates and pytest on both interpreters, and builds the six
+  wheels. The others are `crap-crates.yml`, `mutants.yml`, `fuzz.yml`,
+  `miri.yml`, and `udeps.yml`.
   `scripts/__tests__/crates-ci.test.mjs` fails when a mise task in the root
   `mise.toml` or the five crate `tasks.toml` files loses its last CI caller.