Parse a FASTA file and return sequence metadata: IDs, names, descriptions, lengths, and sequence previews.
AI agents call parse_fasta to retrieve information from MedSci Agent without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool only reads and parses an existing FASTA file, extracting metadata such as IDs, names, descriptions, lengths, and previews. It has no side effects, does not modify data, and cannot cause harm beyond reading local files.
From the tool's definition Parse a FASTA file and return sequence metadata: IDs, names, descriptions, lengths, and sequence previews.
Documented attack patterns abuse exactly the kind of access parse_fasta gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and MedSci Agent, and nothing reaches the server without passing your rules. This is the rule we recommend for parse_fasta:
{
"version": "1",
"default": "deny",
"tools": {
"parse_fasta": {}
}
}parse_fasta is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Parse a FASTA file and return sequence metadata: IDs, names, descriptions, lengths, and sequence previews. It is categorised as a Read tool in the MedSci Agent MCP Server, which means it retrieves data without modifying state.
Register the MedSci Agent MCP server in PolicyLayer and add a rule for parse_fasta: 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 MedSci Agent. Nothing to install.
parse_fasta 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 parse_fasta 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 parse_fasta. 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.
parse_fasta is provided by the MedSci Agent MCP server (omar-a-hassan/medsci-agent). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from MedSci Agent, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
28 MedSci Agent tools catalogued and risk-classified — across an index of 43,000+ MCP servers.