write_workspace_file
在工作区中创建或覆盖写入文件。 如果父目录不存在会自动递归创建。 路径必须在已绑定的工作区范围内。 ⚠️ 会覆盖已有文件内容，请谨慎使用。
This record as markdown: /tools/deepractice-promptx/write-workspace-file.md
What write_workspace_file does on PromptX
AI agents use write_workspace_file to create or update resources in PromptX, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your PromptX environment.
Why write_workspace_file is rated Medium
This tool creates or modifies files reversibly within a bounded workspace. While it can overwrite existing files, the action is reversible (files can be re-written or restored from backups), and the scope is constrained to the workspace boundary. This makes it Write rather than Destructive.
From the tool's definition Tool name 'write_workspace_file' and description states it creates or overwrites files in a workspace ('在工作区中创建或覆盖写入文件'). The warning explicitly cautions about overwriting existing file content ('会覆盖已有文件内容，请谨慎使用').
Attacks that exploit this kind of access
The rule that runs write_workspace_file safely
PolicyLayer is an MCP gateway: it sits between your AI agents and PromptX, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For write_workspace_file, this is the rule to start with:
write_workspace_file 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.
The button opens the PolicyLayer dashboard: create your workspace, connect PromptX, apply this rule, and every write_workspace_file call is checked against it from then on.
Questions about write_workspace_file
在工作区中创建或覆盖写入文件。 如果父目录不存在会自动递归创建。 路径必须在已绑定的工作区范围内。 ⚠️ 会覆盖已有文件内容，请谨慎使用。. It is categorised as a Write tool in the PromptX MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the PromptX MCP server in PolicyLayer and add a rule for write_workspace_file: 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 PromptX. Nothing to install.
write_workspace_file 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 write_workspace_file 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 write_workspace_file. 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.
write_workspace_file is provided by the PromptX MCP server (deepractice/promptx). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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