Changelog

All notable changes to @predicatesystems/authority will be documented in this file.

The format is based on Keep a Changelog and this project follows Semantic Versioning.

[Unreleased]

No unreleased changes.

Canonicalization module for reproducible state_hash computation:
- Terminal canonicalization: canonicalizeTerminalSnapshot(), computeTerminalStateHash()
- Desktop accessibility canonicalization: canonicalizeDesktopSnapshot(), computeDesktopStateHash()
- Utility functions: normalizeText(), normalizeCommand(), stripAnsi(), normalizeTimestamps(), normalizeTranscript(), normalizePath(), hashEnvironment(), isSecretKey(), sha256()
- Schema versions: TERMINAL_SCHEMA_VERSION (terminal:v1.0), DESKTOP_SCHEMA_VERSION (desktop:v1.0)
useCanonicalHash option in buildTerminalStateEvidence() and buildDesktopAccessibilityStateEvidence() for reproducible hashes with ANSI stripping, timestamp normalization, and whitespace collapsing.
Cross-platform path normalization with . and .. resolution.
ANSI escape code stripping (256-color, true color, cursor movement, scroll, erase).
UI tree deterministic hashing with child sorting by (role, name).
73+ canonicalization unit tests covering edge cases.

Initial TypeScript SDK scaffold for @predicatesystems/authority.
AuthorityClient with sidecar authorize transport (/v1/authorize default, /authorize alias support).
Typed client error model (AuthorityClientError) with network/timeout/protocol/http mapping.
Authorization request/response contracts and runtime response guard.
Contract fixtures and unit tests for allow/deny/error/path behavior.
Optional sidecar integration test scaffold (RUN_SIDECAR_INTEGRATION_TESTS=true).
GitHub Actions test and npm release workflows.
Dual-license files (MIT + Apache-2.0), contributor guide, and project README.