query_worker_observability
Query the Workers Observability API
Part of the Cloudflare MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
WHEN AI AGENTS USE THIS TOOL
AI agents call query_worker_observability to retrieve information from Cloudflare without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions — but you may still want rate limits to control API costs.
WHY ENFORCE A POLICY ON QUERY_WORKER_OBSERVABILITY
Even though query_worker_observability only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
RECOMMENDED POLICY
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
tools:
query_worker_observability:
rules:
- action: allowSee the full Cloudflare policy for all 23 tools.
DETAILS
MORE CLOUDFLARE TOOLS
accounts_list Read search_cloudflare_documentation Read workers_get_worker Read workers_get_worker_code Read workers_list Read set_active_account Write d1_database_create Other d1_database_delete Other SIMILAR READ TOOLS ON OTHER SERVERS
list_bases Airtable list_tables Airtable list_records Airtable get_record Airtable search_records Airtable search Amplitude RELATED READING
FREQUENTLY ASKED QUESTIONS
What does the query_worker_observability tool do?
Query the Workers Observability API. It is categorised as a Read tool in the Cloudflare MCP Server, which means it retrieves data without modifying state.
How do I enforce a policy on query_worker_observability?
Add a rule in your Intercept YAML policy under the tools section for query_worker_observability. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Cloudflare MCP server.
What risk level is query_worker_observability?
query_worker_observability is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Can I rate-limit query_worker_observability?
Yes. Add a rate_limit block to the query_worker_observability rule in your Intercept 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.
How do I block query_worker_observability completely?
Set action: deny in the Intercept policy for query_worker_observability. 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.
What MCP server provides query_worker_observability?
query_worker_observability is provided by the Cloudflare MCP server (cloudflare/mcp-server-cloudflare). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
ENFORCE POLICIES ON CLOUDFLARE
Open source. One binary. Zero dependencies.