hires_upload_candidate_file
Upload a file for a candidate using a base64 payload. Used for portfolio uploads and document attachment. WARNING: host function-call serializers (both OpenAI and Anthropic) truncate tool arguments above ~20KB, so binary files larger than that will arrive corrupted. For resumes specifically, pref...
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What hires_upload_candidate_file does on 100Hires - AI ATS & Recruitment Software
AI agents use hires_upload_candidate_file to create or update resources in 100Hires - AI ATS & Recruitment Software, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 100Hires - AI ATS & Recruitment Software environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
id | string | number | Yes | Candidate ID (integer) or alias (string). |
file | object | Yes | File to upload (base64 payload). |
Parameters from the server's own tool schema.
Why hires_upload_candidate_file is rated Medium
This tool creates or stores new files/documents associated with candidate profiles, which is a reversible Write operation. It does not execute code, delete data, or move money.
From the tool's definition Tool description states 'Upload a file for a candidate' and 'document attachment' — these are file creation/storage operations that modify candidate records by adding new data.
Risk signalsAccepts file system path (file)
Attacks that exploit this kind of access
The rule that runs hires_upload_candidate_file safely
PolicyLayer is an MCP gateway: it sits between your AI agents and 100Hires - AI ATS & Recruitment Software, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For hires_upload_candidate_file, this is the rule to start with:
hires_upload_candidate_file 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 100Hires - AI ATS & Recruitment Software, apply this rule, and every hires_upload_candidate_file call is checked against it from then on.
Questions about hires_upload_candidate_file
Upload a file for a candidate using a base64 payload. Used for portfolio uploads and document attachment. WARNING: host function-call serializers (both OpenAI and Anthropic) truncate tool arguments above ~20KB, so binary files larger than that will arrive corrupted. For resumes specifically, prefer hires_create_candidate / hires_update_candidate with resume_text — the model parses the file from chat context and passes extracted text, avoiding the size limit entirely. It is categorised as a Write tool in the 100Hires - AI ATS & Recruitment Software MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
hires_upload_candidate_file accepts 2 parameters: id, file. Required: id, file. The full parameter table on this page comes from the server's own tool schema.
Register the 100Hires - AI ATS & Recruitment Software 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 - AI ATS & Recruitment Software. 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 - AI ATS & Recruitment Software MCP server (https://mcp.100hires.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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