History

tegwick a841ceec73 MAS-WP-0009 T01: independent JS implementation (impl/js), differential test, SCP-9 impl/js (Node, zero deps, written from the specs): parser, v0.2 statute-aware rules, signing, outside master. Passes addresses.json, statute-aware.json and auth.json unchanged; its master passes the 11 slave-setup mode flows against the Python email side (ExternalMaster). Differential testing vs mas_core found two unstated stand-in rules, now SCP-9 in the v0.2 draft with fixtures si-011..013, dt-109; ABNF comments no longer say v0.1. Runner: external masters, step errors fail the flow. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Assistant: claude-code Assistant-Model: opus Assistant-Process: 5787@bnt-lap001 Assistant-Session: 5db26b82-138b-40cc-9856-4d5eb0f752fd		2026-10-19 13:22:22 +02:00
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src	MAS-WP-0009 T01: independent JS implementation (impl/js), differential test, SCP-9	2026-10-19 13:22:22 +02:00
test	MAS-WP-0009 T01: independent JS implementation (impl/js), differential test, SCP-9	2026-10-19 13:22:22 +02:00
package.json	MAS-WP-0009 T01: independent JS implementation (impl/js), differential test, SCP-9	2026-10-19 13:22:22 +02:00
README.md	MAS-WP-0009 T01: independent JS implementation (impl/js), differential test, SCP-9	2026-10-19 13:22:22 +02:00

README.md

mas-js: second, independent MAS implementation

Written from the specification texts and fixtures only, not ported from mas_core (MAS-WP-0009). It uses Node 20+ and has zero dependencies.

Module	Covers	Checked by
`src/parser.mjs`	canonical grammar, P1/P2 (address spec §4)	`mas-v0.2-spec/conformance/addresses.json`
`src/statute.mjs`	stand-ins (§6.3), equivalence (§8), destination transforms (§12.1), length (§13)	`mas-v0.2-spec/conformance/statute-aware.json`
`src/signing.mjs`	peer authentication (mode contract §7)	`mas-modes-v0.1-spec/conformance/auth.json`
`src/master.mjs`	outside master for email's slave role (mode contract §3.2)	`mas-modes-v0.1-spec/conformance/flows.json`, slave setups, run against the Python email side

cd impl/js && node --test                       # the three bundles, read in place
cd ../.. && .venv/bin/pytest tests/test_js_impl.py tests/test_differential.py

src/batch.mjs evaluates parse, interpret and destination cases in bulk. tests/test_differential.py compares it with mas_core over 1500 generated local-parts per operation. Its first run found two gaps in the spec text (SCP-9).

Nothing in Python imports this code. The flow runner starts master.mjs as a separate process and drives it only through its loopback control API (mas_modes/external.py).