cloakAntigravityToolPayload() injects decoy functionDeclarations
(search_web, browser_subagent, read_url_content, generate_image) that
mimic Antigravity's built-in server-side agent tools whenever any real
tool is declared, but never set the companion
toolConfig.includeServerSideToolInvocations flag a genuine Antigravity
client sends alongside them. Google's Cloud Code backend (Gemini 3+)
requires this opt-in whenever server-side built-in tool categories are
combined with custom function declarations, causing every Antigravity
tool-calling request to fail upstream.
Set toolConfig.includeServerSideToolInvocations = true whenever decoy
tools are injected.