capture_agent_events
Capture recent events/output from a descendant child agent task. Returns a compact, summarized event list.
This record as markdown: /tools/cowork-os/capture-agent-events.md
What capture_agent_events does on CoWork OS
AI agents call capture_agent_events 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 capture_agent_events is rated Low
This tool retrieves historical event data from child agent tasks and returns a summarized view. It is a read-only operation with no side effects—it queries existing state without altering it. The low severity reflects minimal risk from misuse: an agent accessing events from its own task hierarchy poses negligible harm.
From the tool's definition Tool description states it 'Capture[s] recent events/output from a descendant child agent task. Returns a compact, summarized event list.' The verb 'capture' in this context means retrieve/query, and 'returns' confirms data retrieval with no modification.
Attacks that exploit this kind of access
The rule that runs capture_agent_events 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 capture_agent_events, this is the rule to start with:
capture_agent_events 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 capture_agent_events call is checked against it from then on.
Questions about capture_agent_events
Capture recent events/output from a descendant child agent task. Returns a compact, summarized event list. 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 capture_agent_events: 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.
capture_agent_events 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 capture_agent_events 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 capture_agent_events. 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.
capture_agent_events 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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