scratchpad_read
Read notes from your session scratchpad. Returns all notes if no key specified,
This record as markdown: /tools/cowork-os/scratchpad-read.md
What scratchpad_read does on CoWork OS
AI agents call scratchpad_read to retrieve information from CoWork OS without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why scratchpad_read is rated Low
This tool retrieves or queries data (notes from a scratchpad) without creating, modifying, deleting, or executing operations. It is purely informational and fits the Read category definition: 'retrieves or queries data; no side effects.' The low severity reflects that reading session notes poses minimal risk even if misused by an agent.
From the tool's definition Tool name is 'scratchpad_read' and description states it 'Read notes from your session scratchpad. Returns all notes if no key specified.' The verb 'read' and 'returns' indicate data retrieval with no modification or side effects.
Attacks that exploit this kind of access
The rule that runs scratchpad_read safely
PolicyLayer is an MCP gateway: it sits between your AI agents and CoWork OS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For scratchpad_read, this is the rule to start with:
scratchpad_read is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect CoWork OS, apply this rule, and every scratchpad_read call is checked against it from then on.
Questions about scratchpad_read
Read notes from your session scratchpad. Returns all notes if no key specified,. It is categorised as a Read tool in the CoWork OS MCP Server, which means it retrieves data without modifying state.
Register the CoWork OS MCP server in PolicyLayer and add a rule for scratchpad_read: 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 CoWork OS. Nothing to install.
scratchpad_read 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 scratchpad_read 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 scratchpad_read. 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.
scratchpad_read is provided by the CoWork OS MCP server (CoWork-OS/CoWork-OS). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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