vault_container_create
Create a new 0nVault container with semantically-layered encryption. 7 available layers: workflows, credentials, env_vars, mcp_configs, site_profiles, ai_brain, audit_trail. The credentials layer uses Argon2id double-encryption for maximum protection. Output is a binary .0nv file with Ed25519 sig...
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What vault_container_create does on 0nmcp
AI agents use vault_container_create to create or update resources in 0nmcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 0nmcp environment.
Why vault_container_create is rated Medium
This tool creates and initializes a new encrypted vault container, which is a reversible data creation operation. While it handles sensitive data (credentials, environment variables, AI configuration), the act itself is Write rather than Execute—it doesn't run arbitrary code or trigger external operations.
From the tool's definition Tool description explicitly states 'Create a new 0nVault container' with multiple encryption layers including credentials, env_vars, and mcp_configs. Output is a binary .0nv file with cryptographic signatures.
Attacks that exploit this kind of access
The rule that runs vault_container_create safely
PolicyLayer is an MCP gateway: it sits between your AI agents and 0nmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For vault_container_create, this is the rule to start with:
vault_container_create stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect 0nmcp, apply this rule, and every vault_container_create call is checked against it from then on.
Questions about vault_container_create
Create a new 0nVault container with semantically-layered encryption. 7 available layers: workflows, credentials, env_vars, mcp_configs, site_profiles, ai_brain, audit_trail. The credentials layer uses Argon2id double-encryption for maximum protection. Output is a binary .0nv file with Ed25519 signature and SHA3-256 Seal of Truth. Patent Pending: US Provisional Patent Application #63/990,046 Example: vault_container_create({ passphrase:. It is categorised as a Write tool in the 0nmcp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the 0n MCP server in PolicyLayer and add a rule for vault_container_create: 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 0nmcp. Nothing to install.
vault_container_create is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the vault_container_create 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 vault_container_create. 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.
vault_container_create is provided by the 0n MCP server (0nmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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