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MemPalace — Antigravity examples
Two standalone configs for users who don't want to use the
hooks/antigravity/install.sh installer.
Files
| File | Purpose |
|---|---|
hooks.json |
Standalone hooks.json registering the Stop and PreInvocation hooks. |
mcp_config.json |
Standalone MCP entry registering the mempalace-mcp stdio server. |
Wire up hooks.json
The example uses placeholder absolute paths (/ABSOLUTE/PATH/TO/mempalace/...).
You must rewrite both command fields to the actual absolute paths to
the hook scripts in your cloned repo, or to whichever location holds
them. Antigravity will not resolve relative paths reliably.
Then drop the file at one of:
~/.gemini/config/hooks.json(global, applies to every workspace)<workspace>/.agents/hooks.json(workspace-scoped)
Restart Antigravity to pick the file up.
If you'd rather have the paths absolutized automatically, run the installer:
bash hooks/antigravity/install.sh
That writes a fully rendered hooks.json to
~/.gemini/config/plugins/mempalace/hooks.json.
Wire up mcp_config.json
The example registers the mempalace-mcp stdio server. Two options:
Option A — merge into the user-level Antigravity MCP config
Antigravity's user-level MCP config lives at
~/.gemini/antigravity/mcp_config.json. Merge the mcpServers.mempalace
entry from this example into that file, then restart Antigravity.
Option B — drop into a plugin directory
If you've created a custom plugin folder (per the Antigravity plugins docs),
copy this mcp_config.json directly into the plugin root:
<plugin-root>/mcp_config.json
Antigravity merges plugin-level MCP entries with the user-level config on launch.
Verify
After wiring up either or both:
mempalace-mcp --version # confirm binary is on PATH
ls ~/.mempalace/ # confirm palace exists (run `mempalace init` if not)
Restart Antigravity. The mempalace MCP server should appear in the
MCP store; the Stop and PreInvocation hooks fire automatically.
See hooks/antigravity/STDIN_SHAPE.md
for the exact wire format Antigravity uses, and
website/guide/antigravity.md
for the full user-facing guide.