Compare 2–5 Korean stock market themes side-by-side with lifecycle scores, similarity, and overlapping stocks. Use when the user asks: - Compare semiconductor and AI themes - How similar are these themes? - 반도체 vs AI 테마 비교, 테마 간 유사도 - Which theme is stronger right now? - Do these themes share the...
Part of the Stockmatrix server.
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AI agents call compare_themes to retrieve information from Stockmatrix 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 compare_themes 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": {
"compare_themes": {}
}
}See the full Stockmatrix policy for all 10 tools.
These attack patterns abuse exactly the kind of access compare_themes 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.
Compare 2–5 Korean stock market themes side-by-side with lifecycle scores, similarity, and overlapping stocks. Use when the user asks: - Compare semiconductor and AI themes - How similar are these themes? - 반도체 vs AI 테마 비교, 테마 간 유사도 - Which theme is stronger right now? - Do these themes share the same stocks? Returns each theme's score/stage/sparkline, pairwise similarity scores, and overlapping stocks.. It is categorised as a Read tool in the Stockmatrix MCP Server, which means it retrieves data without modifying state.
Register the Stockmatrix MCP server in PolicyLayer and add a rule for compare_themes: 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 Stockmatrix. Nothing to install.
compare_themes 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 compare_themes 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 compare_themes. 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.
compare_themes is provided by the Stockmatrix MCP server (stockmatrix-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 10 Stockmatrix tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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