util_content_type_sniff
Heuristic content-type sniff from sample bytes or filename
This record as markdown: /tools/io-github-davidmosiah-delx-protocol/util-content-type-sniff.md
What util_content_type_sniff does on Delx Protocol — Agent Recovery & Continuity
AI agents use util_content_type_sniff to create or update resources in Delx Protocol — Agent Recovery & Continuity, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Delx Protocol — Agent Recovery & Continuity environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
sample | string | — | Input field: sample. |
filename | string | — | Input field: filename. |
Parameters from the server's own tool schema.
Why util_content_type_sniff is rated Medium
An AI agent can call util_content_type_sniff faster than any human can review: one bad instruction and it creates or modifies resources in Delx Protocol — Agent Recovery & Continuity by the hundred, each call as confident as the last.
Risk signalsAccepts file system path (filename)
Attacks that exploit this kind of access
The rule that runs util_content_type_sniff safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Delx Protocol — Agent Recovery & Continuity, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For util_content_type_sniff, this is the rule to start with:
util_content_type_sniff 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 Delx Protocol — Agent Recovery & Continuity, apply this rule, and every util_content_type_sniff call is checked against it from then on.
Questions about util_content_type_sniff
Heuristic content-type sniff from sample bytes or filename. It is categorised as a Write tool in the Delx Protocol — Agent Recovery & Continuity MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
util_content_type_sniff accepts 2 parameters: sample, filename. The full parameter table on this page comes from the server's own tool schema.
Register the Delx Protocol — Agent Recovery & Continuity MCP server in PolicyLayer and add a rule for util_content_type_sniff: 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 Delx Protocol — Agent Recovery & Continuity. Nothing to install.
util_content_type_sniff 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 util_content_type_sniff 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 util_content_type_sniff. 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.
util_content_type_sniff is provided by the Delx Protocol — Agent Recovery & Continuity MCP server (https://api.delx.ai/v1/mcp?src=registry). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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