hash_get_all
Get all fields and values from hash. Args: key: The name of the key Returns: Dictionary of field-value pairs or error message
This record as markdown: /tools/aws/hash-get-all.md
What hash_get_all does on AWS
AI agents call hash_get_all to retrieve information from AWS without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why hash_get_all is rated Low
This tool retrieves data from a hash data structure without creating, modifying, deleting, or executing any operations. It is a straightforward read/query operation with minimal blast radius—an AI agent misusing it could only over-query or expose data already accessible through the tool, but cannot cause infrastructure damage or data loss.
From the tool's definition Tool name 'hash_get_all' and description 'Get all fields and values from hash' indicate a retrieval operation with no modification or side effects. The return value is a 'Dictionary of field-value pairs', confirming read-only semantics.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs hash_get_all safely
PolicyLayer is an MCP gateway: it sits between your AI agents and AWS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For hash_get_all, this is the rule to start with:
hash_get_all 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 AWS, apply this rule, and every hash_get_all call is checked against it from then on.
Questions about hash_get_all
Get all fields and values from hash. Args: key: The name of the key Returns: Dictionary of field-value pairs or error message. It is categorised as a Read tool in the AWS MCP Server, which means it retrieves data without modifying state.
Register the AWS MCP server in PolicyLayer and add a rule for hash_get_all: 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 AWS. Nothing to install.
hash_get_all 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 hash_get_all 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 hash_get_all. 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.
hash_get_all is provided by the AWS MCP server (@awslabs/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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