Grok Marketplace Demo — Two-Session Handoff (90 seconds)

Audience: xAI evaluators, new plugin users
Plugin: engram-geometric
Contract: 8-tool lean path only

Setup (once)

git clone https://github.com/staticroostermedia-arch/engram.git
cd engram
./scripts/install-engram-plugin.sh

Open a new Grok Build session on the Engram repo (or any project with the plugin trusted).

Ask the agent (or run tools):

/engram-wake

Then:

mcp_engram_remember
- concept: demo:marketplace_user_goal
- text: "Ship engram-geometric as the best Grok Build memory plugin."
mcp_engram_quick_trace
- decision: "Use 8-tool lean contract for marketplace listing"
- why: "Proves continuity without ritual tax on 180k+ stores"
mcp_engram_session_end
- summary: "Demo session 1: remembered demo goal, traced marketplace decision. Next wake should rehydrate handoff."
- prepare_compression: true

Expected: Structured handoff packet in response; helper:session_handoff_latest updated.

Open a new Grok chat (same machine, plugin still trusted).

/engram-wake

Expected without user paste:

Agent states continuation from prior session
continuation_bundle includes handoff preview
mcp_engram_recall("marketplace demo", scope="anchors") surfaces demo:marketplace_user_goal

Optional edit demo:

mcp_engram_context_for_edit(path="/absolute/path/to/README.md")

Expected: File-scoped spatial + related traces (no watch_workspace).

./scripts/engram-mcp-health.sh

While a Grok session is open: OK: Live engram MCP already running — not a failure.

Do not use grok mcp doctor during an active session (lock contention).

STABLE_BIN=target/debug/engram tools/test-harness/bin/engram-harness.sh --suite agent-memory

Must exit 0 with passed: true and helper:session_handoff_latest present.

Not flat markdown memory — geometric blocks with CRS trust, edit-scoped code context, and machine-readable session handoff.