解密文档 Args: encrypted_file_path: 加密文件路径 password: 解密密码 output_format: 输出文件格式后缀，如果不提供则保持原格式 Returns: 包含解密结果的字典
AI agents use decrypt_document to create or update resources in Office Editor — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Office Editor environment.
While decryption itself is a legitimate operation, it results in creating or modifying an output file (reversible through re-encryption or deletion). This falls under Write rather than Read because it produces a new artifact (decrypted file). It is not Destructive because the operation is reversible and does not permanently erase data.
From the tool's definition Tool name is 'decrypt_document' with parameters for encrypted_file_path, password, and output_format. The function decrypts and outputs a file, which modifies/transforms data from encrypted to plaintext form.
Documented attack patterns abuse exactly the kind of access decrypt_document gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Office Editor, and nothing reaches the server without passing your rules. This is the rule we recommend for decrypt_document:
{
"version": "1",
"default": "deny",
"tools": {
"decrypt_document": {
"limits": [
{
"counter": "decrypt_document_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}decrypt_document stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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解密文档 Args: encrypted_file_path: 加密文件路径 password: 解密密码 output_format: 输出文件格式后缀，如果不提供则保持原格式 Returns: 包含解密结果的字典. It is categorised as a Write tool in the Office Editor MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Office Editor MCP server in PolicyLayer and add a rule for decrypt_document: 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 Office Editor. Nothing to install.
decrypt_document 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 decrypt_document 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 decrypt_document. 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.
decrypt_document is provided by the Office Editor MCP server (thewdy/office-editor-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 88 Office Editor tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
88 Office Editor tools catalogued and risk-classified — across an index of 42,500+ MCP servers.