dbl-gateway 0.3.2

DBL Gateway

DBL Gateway 0.3.2

Authoritative DBL and KL gateway. This service is the single writer for append-only trails, applies policy via dbl-policy, and executes via kl-kernel-logic. UI and boundary services consume its snapshots and emit INTENT only.

This release stabilizes the 0.3.x stackline and does not introduce new wire contracts.

Compatible stack versions:

• dbl-core==0.3.2
• dbl-policy==0.1.0
• dbl-main==0.3.0
• kl-kernel-logic==0.5.0

Quickstart (PowerShell)

py -3.11 -m venv .venv
.venv\Scripts\Activate.ps1
python -m pip install -e ".[dev]"

Run the gateway:

dbl-gateway serve --db .\data\trail.sqlite --host 127.0.0.1 --port 8010

Run with uvicorn:

$env:DBL_GATEWAY_DB=".\data\trail.sqlite"
py -3.11 -m uvicorn dbl_gateway.app:app --host 127.0.0.1 --port 8010

Endpoints

Write:

• POST /ingress/intent

Read:

• GET /snapshot
• GET /capabilities
• GET /healthz

Environment contract

See docs/env_contract.md.

Notes

• The gateway is the only component that performs governance and execution.
• All stabilization is expressed explicitly via DECISION events.
• Boundary and UI clients do not import dbl-core or dbl-policy.
• The gateway uses dbl-core for canonicalization and digest computation.