Upload a file for a candidate using a base64 payload. Used for resume ingestion, portfolio uploads, and document attachment.
AI agents use hires_upload_candidate_file to create or update resources in 100Hires MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 100Hires MCP Server environment.
File upload is a write operation that creates new data objects in the candidate record. Severity is medium because malicious file uploads could introduce malware or fraudulent documents into hiring records, affecting recruitment workflows and compliance. However, the operation is reversible (files can be deleted), so it does not rise to Destructive.
From the tool's definition Tool name and description explicitly state 'Upload a file for a candidate' — this creates or modifies data (resume, portfolio, document attachment) in the ATS system. The base64 payload mechanism confirms file creation/storage.
Attacks that exploit this kind of access
Upload a file for a candidate using a base64 payload. Used for resume ingestion, portfolio uploads, and document attachment. It is categorised as a Write tool in the 100Hires MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the 100Hires MCP Server MCP server in PolicyLayer and add a rule for hires_upload_candidate_file: 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 100Hires MCP Server. Nothing to install.
hires_upload_candidate_file 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 hires_upload_candidate_file 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 hires_upload_candidate_file. 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.
hires_upload_candidate_file is provided by the 100Hires MCP Server MCP server (100hires/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
hires_upload_candidate_file is one line of 100Hires MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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