hires_upload_attachment
Upload a base64 file as an attachment. voicemail: wav/mp3, max 20 MB, no object_id, the returned uuid serves as attachment_uuid in nurture voicemail steps. Returns uuid, url, file, relative_time.
This record as markdown: /tools/com-100hires-100hires/hires-upload-attachment.md
What hires_upload_attachment does on 100Hires - AI ATS & Recruitment Software
AI agents use hires_upload_attachment 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 |
|---|---|---|---|
file | object | Yes | |
category | string | Yes | Determines allowed extensions and the object_id owner type |
object_id | number | null | — | Owner id per category: candidate, application, comment, job note or company; omit for voicemail |
company_id | number | null | — | Company that owns object_id; default: the authenticated company |
Parameters from the server's own tool schema.
Why hires_upload_attachment is rated Medium
An AI agent can call hires_upload_attachment faster than any human can review: one bad instruction and it creates or modifies resources in 100Hires - AI ATS & Recruitment Software by the hundred, each call as confident as the last.
Risk signalsAccepts file system path (file)
Attacks that exploit this kind of access
The rule that runs hires_upload_attachment 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_attachment, this is the rule to start with:
hires_upload_attachment 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_attachment call is checked against it from then on.
Questions about hires_upload_attachment
Upload a base64 file as an attachment. voicemail: wav/mp3, max 20 MB, no object_id, the returned uuid serves as attachment_uuid in nurture voicemail steps. Returns uuid, url, file, relative_time. 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_attachment accepts 4 parameters: file, category, object_id, company_id. Required: file, category. 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_attachment: 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_attachment 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_attachment 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_attachment. 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_attachment 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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