Shared, IR-only substrate for Archstone emitters (ADD-0008 / RFC-0008): IR indexing
(Registry), semantic-type → JSON-Schema lowering, tool-name sanitization, the
response-mapping executor, and the extraction boundary (ADR-0011) — extractionJsonSchema
and validateExtraction, which lower a declared resource into a closed schema and judge a
model's answer against it. Depends only on @archstone/compiler — no MCP SDK, no
node:fs, no HTTP — so any emitter built on it (the MCP server in @archstone/runtime, the
embedded agent in @archstone/agent) can be tree-shaken cleanly.
Both directions of travel go through this package, and that is the point: a Resource
Definition is the schema for a provider's response and for what a model must produce, so
neither side can be mapped by a rule the other does not share.
Part of Archstone, an open-source
Capability Platform — most users should install
@archstone/cli instead of depending on
this package directly.