試算表（貸借対照表：BS）を取得
AI agents call get_trial_balance_bs to retrieve information from freee MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves financial statement data (balance sheet) from the freee accounting system without modifying, executing operations, or deleting anything. It is a pure read operation for querying existing accounting records. The low severity reflects that reading financial statements poses minimal risk compared to tools that could create transactions, delete records, or move money.
From the tool's definition Tool name and description indicate data retrieval: 'get_trial_balance_bs' retrieves trial balance (balance sheet) from accounting software. The Japanese description '試算表（貸借対照表：BS）を取得' translates to 'Retrieve trial balance (balance sheet)'.
Attacks that exploit this kind of access
試算表（貸借対照表：BS）を取得. It is categorised as a Read tool in the freee MCP Server MCP Server, which means it retrieves data without modifying state.
Register the freee MCP Server MCP server in PolicyLayer and add a rule for get_trial_balance_bs: 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 freee MCP Server. Nothing to install.
get_trial_balance_bs 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 get_trial_balance_bs 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 get_trial_balance_bs. 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.
get_trial_balance_bs is provided by the freee MCP Server MCP server (unson-llc/freee-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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