snow_cache_get
Look up a value from the in-memory tool cache by key. Returns null with cached=false on miss. Pairs with snow_cache_set for de-duplicating expensive calls within a session.
This record as markdown: /tools/serac/snow-cache-get.md
What snow_cache_get does on Serac
AI agents call snow_cache_get to retrieve information from Serac without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why snow_cache_get is rated Low
snow_cache_get is a read-only lookup operation that retrieves previously stored values from an in-memory cache. It performs no mutations, deletions, executions, or financial operations. The tool is designed to support optimization and de-duplication within a session. The minimal blast radius if misused would be information disclosure of cached values, which poses only low risk in typical enterprise contexts.
From the tool's definition Tool description states: 'Look up a value from the in-memory tool cache by key. Returns null with cached=false on miss.' This is a retrieval operation that queries cached data with no side effects.
Attacks that exploit this kind of access
The rule that runs snow_cache_get 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_cache_get, this is the rule to start with:
snow_cache_get 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 Serac, apply this rule, and every snow_cache_get call is checked against it from then on.
Questions about snow_cache_get
Look up a value from the in-memory tool cache by key. Returns null with cached=false on miss. Pairs with snow_cache_set for de-duplicating expensive calls within a session. It is categorised as a Read tool in the Serac MCP Server, which means it retrieves data without modifying state.
Register the Serac MCP server in PolicyLayer and add a rule for snow_cache_get: 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_cache_get 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 snow_cache_get 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_cache_get. 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_cache_get 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.
More on Serac, and thousands of servers like it.
This server
Across the catalogue