Wire solid-chat into the agentic stack #34

The solid-apps work in May 2026 (jspod 0.0.39, javascript-solid-server 0.0.201 with --mcp, solid-apps/charlie, the new agentic bundle) needs solid-chat slotted in. Chat is the missing user-to-user pillar alongside charlie (user-to-bot) and forum (group chat).

Integration points

• Installable via jss install — works today via jss install solid-chat/app=chat (org/repo + rename, phase 2 of JSS#464). Consider aliasing under solid-apps/ for the bare jss install chat.
• Slot into the agentic bundle — solid-apps/bundles/agentic.jsonld should include chat alongside charlie / taskify / vellum / forum / chrome.
• xlogin parity — single widget for Solid OIDC + Nostr (did:nostr:), matching the rest of solid-apps.
• ACL'd inbox conventions — foaf:Agent Read + acl:AuthenticatedAgent Append on /messages/, WebSocket subscribe (/.notifications) for live delivery. Same shape as forum / chess / poker federation.
• NIP-44 encryption for DMs — composes with Friends-only access via wac conditions #31 (friends-only access via WAC conditions). The encryption key material is the user's Nostr key, which xlogin already manages.
• MCP-aware — agents (e.g. charlie) can be chat counterparties via did:nostr: identities; they can read history with explicit ACL grant.

Sub-issues to file per integration point as work begins.

Related

• `solid-apps/charlie` — the bot side of the chat surface
• `solid-apps/bundles` `agentic.jsonld` — the bundle that should include chat
• JSS#490 — the MCP capstone all of this composes on
• Friends-only access via wac conditions #31 — friends-only access via WAC conditions