feat(agent-context): export ./agent-context subpath + document the surface

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: dmealing

server/typescript/packages/sdk/README.md

@@ -23,6 +23,15 @@ The canonical agent reference docs (scaffolded by `meta init`) are available via
 import { AGENT_DOCS_BODY, withContentHash } from "@metaobjectsdev/sdk/agent-docs";
 ```
 
+## agent-context
+
+`@metaobjectsdev/sdk/agent-context` assembles the downstream AI-assistant context
+(the slim `.metaobjects/AGENTS.md`/`CLAUDE.md` + the five `metaobjects-*` Claude
+skills with only the project's language reference fragments) from the repo-root
+`agent-context/` source tree. `makeStack`/`detectStack` resolve the project's
+server+client axes; `assemble({ contentRoot, stack })` emits the files. Design:
+`docs/superpowers/specs/2026-06-02-downstream-agent-context-design.md`.
+
 ## Links
 
 - [Spec](https://github.com/metaobjectsdev/metaobjects/tree/main/spec)

server/typescript/packages/sdk/package.json

@@ -15,6 +15,11 @@
       "bun": "./src/agent-docs/index.ts",
       "types": "./dist/agent-docs/index.d.ts",
       "default": "./dist/agent-docs/index.js"
+    },
+    "./agent-context": {
+      "bun": "./src/agent-context/index.ts",
+      "types": "./dist/agent-context/index.d.ts",
+      "default": "./dist/agent-context/index.js"
     }
   },
   "files": ["dist", "src", "README.md", "LICENSE"],