szl-python

szl-python is a planned unified Python SDK. No PyPI release is asserted here; therefore this page intentionally contains no pip install szl command.

Design target, not executable API

The following shape is a design sketch for future compatibility. It must not be copied into a production integration until a versioned source and package receipt exist.

# Planned, not importable today.
from szl import Client

client = Client()
decision = client.policy.evaluate(action="example", axes={})

Source-local path today

Use source repositories and their checked-in manifests rather than an unverified registry name:

git clone https://github.com/szl-holdings/lutar-lean.git
git clone https://github.com/szl-holdings/a11oy.git

Pin the Lean lock to exact commit c7c0ba17c2eaec60ad38ea9172b4a0d9ca0b582f when reproducing Doctrine v11; the lutar-v18.0.0 tag resolves elsewhere. Build a11oy using its local README and lockfile. The a11oy public readiness observation is currently UNAVAILABLE; killinchu readiness was AVAILABLE_AT_OBSERVATION only at the dated probe. See /status.

Receipt boundary

Future SDKs must preserve receipt labels. DSSE-PLACEHOLDER or UNSIGNED is unsigned; a hash chain/self-digest is integrity evidence, not a cryptographic signer. Image provenance is separate.