Emboss

Attach a document to a proposal

add_attachment

Prepare a form from documents: a proposal of every answer with its source, what is missing, and where documents disagree, before writing, plus attachments for a package. Attach one document (file_url: public https link, or file_base64) to a proposal from prepare_form. PDF, PNG and JPEG only, at most 20 per proposal. requirement: the name of an entry in the form's attachments_required list to satisfy it; uploading a second document for the same requirement replaces the first. Free: attachments are part of the already-billed prepare.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`file_url`	No
`file_base64`	No
`proposal_id`	Yes
`requirement`	No

Output Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 10, 2026

addedInput schema / examples

Added value: +[
+  {
+    "file_url": "https://example.com/docs/proof-of-insurance.pdf",
+    "proposal_id": "aaaaaaaa-bbbb-cccc-dddd-eeeeeeeeeeee",
+    "requirement": "Proof of insurance"
+  }
+]

First observedSep 16, 2026

TDQS

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