snow_fluent_build
Build a local ServiceNow Fluent (SDK) project with now-sdk build. Compiles .now.ts Fluent sources + metadata XML
This record as markdown: /tools/serac/snow-fluent-build.md
What snow_fluent_build does on Serac
AI agents invoke snow_fluent_build to trigger actions in Serac. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why snow_fluent_build is rated High
This tool executes a build process (now-sdk build) which compiles TypeScript sources and XML metadata. While framed as a local operation, build processes can trigger code execution, transformations, and side effects beyond mere data retrieval. The compilation step involves executing the build tool chain, making this Execute category.
From the tool's definition Tool description states "Build a local ServiceNow Fluent (SDK) project with now-sdk build" and "Compiles .now.ts Fluent sources + metadata XML".
Attacks that exploit this kind of access
The rule that runs snow_fluent_build safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Serac, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For snow_fluent_build, this is the rule to start with:
snow_fluent_build stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Serac, apply this rule, and every snow_fluent_build call is checked against it from then on.
Questions about snow_fluent_build
Build a local ServiceNow Fluent (SDK) project with now-sdk build. Compiles .now.ts Fluent sources + metadata XML. It is categorised as a Execute tool in the Serac MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Serac MCP server in PolicyLayer and add a rule for snow_fluent_build: 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 Serac. Nothing to install.
snow_fluent_build is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the snow_fluent_build 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 snow_fluent_build. 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.
snow_fluent_build is provided by the Serac MCP server (serac-labs/serac). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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