Reload the latest structured memory (.fafm) for one or more souls into the current session. Returns a stamped delta by default (added/updated facts since last refresh or a given timestamp). Use verbatim: true to receive the full current .fafm content instead. Read-only. Always returns a content h...
Part of the Grok Faf server.
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AI agents call refresh_fafm to retrieve information from Grok Faf without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though refresh_fafm only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"refresh_fafm": {}
}
}See the full Grok Faf policy for all 24 tools.
These attack patterns abuse exactly the kind of access refresh_fafm gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Reload the latest structured memory (.fafm) for one or more souls into the current session. Returns a stamped delta by default (added/updated facts since last refresh or a given timestamp). Use verbatim: true to receive the full current .fafm content instead. Read-only. Always returns a content hash + timestamp stamp. Complements recall, load_soul, and etch — does not replace them.. It is categorised as a Read tool in the Grok Faf MCP Server, which means it retrieves data without modifying state.
Register the Grok Faf MCP server in PolicyLayer and add a rule for refresh_fafm: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Grok Faf. Nothing to install.
refresh_fafm is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the refresh_fafm rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for refresh_fafm. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
refresh_fafm is provided by the Grok Faf MCP server (Wolfe-Jam/grok-faf-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 24 Grok Faf tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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