Initiate a test call using a specific published version's configuration. Supports webcall, chat, and telephony modes. Use this to test a non-active version before activating it (e.g. verifying a rollback candidate).
Single-target operation
Part of the Smallest MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents call test_version to retrieve information from Smallest 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.
Even though test_version 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.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
tools:
test_version:
rules:
- action: allowSee the full Smallest policy for all 70 tools.
Agents calling read-class tools like test_version have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.
Initiate a test call using a specific published version's configuration. Supports webcall, chat, and telephony modes. Use this to test a non-active version before activating it (e.g. verifying a rollback candidate).. It is categorised as a Read tool in the Smallest MCP Server, which means it retrieves data without modifying state.
Add a rule in your Intercept YAML policy under the tools section for test_version. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Smallest MCP server.
test_version 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 test_version 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.
Set action: deny in the Intercept policy for test_version. 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.
test_version is provided by the Smallest MCP server (@developer-smallestai/smallest-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic policy on every MCP tool call. Per-identity grants. Full audit log.