Get learning strategies, tools, and study techniques specifically designed for people with aphantasia (inability to visualize mentally). Includes VVIQ assessment info, spatial memory techniques that work without visualization, and recommended tools.
Part of the Gridually server.
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AI agents call aphantasia_learning_guide to retrieve information from Gridually 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 aphantasia_learning_guide 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": {
"aphantasia_learning_guide": {}
}
}See the full Gridually policy for all 7 tools.
These attack patterns abuse exactly the kind of access aphantasia_learning_guide 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.
Get learning strategies, tools, and study techniques specifically designed for people with aphantasia (inability to visualize mentally). Includes VVIQ assessment info, spatial memory techniques that work without visualization, and recommended tools.. It is categorised as a Read tool in the Gridually MCP Server, which means it retrieves data without modifying state.
Register the Gridually MCP server in PolicyLayer and add a rule for aphantasia_learning_guide: 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 Gridually. Nothing to install.
aphantasia_learning_guide 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 aphantasia_learning_guide 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 aphantasia_learning_guide. 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.
aphantasia_learning_guide is provided by the Gridually MCP server (gridually-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 7 Gridually tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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