KRX 6-digit ticker → DART corp entry resolver. Free tier. Use this tool when the user provides a 6-digit Korean stock code (e.g. 005930 for Samsung Electronics, 000660 for SK hynix, 035420 for NAVER, 035720 for Kakao, 005380 for Hyundai Motor) and you need the company name + corp_code for downstr...
Part of the Koreanpulse server.
Free to start. No card required.
AI agents use resolve_stock_code to create or modify resources in Koreanpulse. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call resolve_stock_code repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Koreanpulse.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"resolve_stock_code": {
"limits": [
{
"counter": "resolve_stock_code_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Koreanpulse policy for all 7 tools.
These attack patterns abuse exactly the kind of access resolve_stock_code gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
KRX 6-digit ticker → DART corp entry resolver. Free tier. Use this tool when the user provides a 6-digit Korean stock code (e.g. 005930 for Samsung Electronics, 000660 for SK hynix, 035420 for NAVER, 035720 for Kakao, 005380 for Hyundai Motor) and you need the company name + corp_code for downstream filings or industry-news lookups.. It is categorised as a Write tool in the Koreanpulse MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Koreanpulse MCP server in PolicyLayer and add a rule for resolve_stock_code: 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 Koreanpulse. Nothing to install.
resolve_stock_code is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the resolve_stock_code 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 resolve_stock_code. 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.
resolve_stock_code is provided by the Koreanpulse MCP server (https://mcp.koreanpulse.dev/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 Koreanpulse tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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