About

Imported from jeremylongshore/tons-of-skills-marketplace (plugins/saas-packs/grammarly-pack/skills/grammarly-data-safety-guardian/SKILL.md). Install upstream with npx skills add jeremylongshore/tons-of-skills-marketplace --skill grammarly-data-safety-guardian. Copyright stays with the author (MIT).

Grammarly Data Safety Guardian

Name: grammarly-data-safety-guardian
Author: jeremylongshore

Run a deterministic preflight over a metadata-only submission manifest. The guard answers whether a planned document upload satisfies this skill's hard safety gates; it does not read a document, contact Grammarly, create an upload URL, or retain a copy of the manifest.

Overview

The guard is a closed-world policy check for a planned document submission. It combines Grammarly's documented format and size constraints with local governance decisions while keeping the document itself outside the workflow.

When to use

Use for a Writing Score, AI Detection (Beta), or Plagiarism Detection (Beta) document submission before and after the evaluator inspects the provider-issued upload origin. The preliminary decision gates OAuth metadata disclosure; the final decision gates document bytes. Do not trigger for writing or editing content, document previews, credential troubleshooting, or a request to upload a real document.

Prerequisites

A synthetic or production-approved metadata-only manifest matching references/submission-contract.md.
Independent data-owner approval, consent evidence, transfer approval, content classification, and acknowledgment of provider retention boundaries.
Python 3.10 or newer. No document path, document content, credential, network, or writable output directory is required.

Instructions

Collect only the manifest described in references/submission-contract.md. The manifest may contain extension, byte count, optional derived text counts, and governance decisions, the pinned API control-plane origin, and the exact sanitized presigned upload origin; it must not contain text, content, previews, credentials, paths, filenames, full upload URLs, or raw API responses.

Run the guard with stdin:

python3 scripts/audit_submission_manifest.py < submission-manifest.json

Treat BLOCKED as a hard stop. Fix the named metadata or governance decision; never truncate or transform a document silently to pass the guard.
Treat INSPECTION_READY as permission only to create a normalized-filename job and inspect its sanitized upload origin. Treat READY as permission to continue to the separately authorized upload workflow, not as proof that a document is lawful, accurate, or safe for a new destination.

The script accepts strict JSON, rejects duplicate keys and non-standard constants, recursively rejects raw text, location, response, and credential fields, and performs no network or filesystem writes. It enforces the documented extensions, 4,194,304-byte maximum, UTF-8 text counts, a non-restricted classification, all approval gates, the exact https://api.grammarly.com control-plane origin, and an explicitly approved public HTTPS S3 presigned-upload origin on the default TLS port.

Output

Return the deterministic JSON decision and failed check names. Do not echo a filename, path, text, preview, credential, identifier, or raw document metadata beyond the safe numeric and enum fields in the script's output.

Error Handling

BLOCKED is a hard stop for an unsupported extension, zero or oversized bytes, supplied character/word limits, failed approval/consent/retention/destination checks, unknown fields, duplicate keys, or unsafe content/credential fields. Do not truncate, split, preview, log, or upload a document to investigate. Invalid input returns a non-zero exit status and a JSON decision without the rejected value.

Examples

A .docx manifest at 4,194,304 bytes with approved classification, authority, consent, transfer, retention, exact API origin, and exact inspected upload origin: READY.
The same content-bound manifest with presigned_upload_origin: null and presigned_upload_origin_approved: false: INSPECTION_READY, which permits only destination discovery and no document upload.
A .txt manifest missing derived counts or with word_count: 29: BLOCKED.
A restricted manifest, lookalike API origin, private upload origin, or unapproved inspected upload origin: BLOCKED.
A manifest containing preview, raw_text, or client_token: BLOCKED before any size or governance decision is used.

Resources

Read references/submission-contract.md for the closed-world input schema and API-derived limits.
Read references/governance-gate.md when deciding what approval, consent, retention, and destination evidence is sufficient.
The script is intentionally offline and has no write capability.

Use it

Copy one of these into your project. Installing also returns the manifest and these snippets.

yaml

targets:
  - https://api.opensmartroute.ai/api/v1/registry/jeremylongshore-tons-of-skills-marketplace-grammarly-dat-25876e/manifest   # or paste the manifest below

Manifest

An Open Capability Manifest: the router reads it to know what this does, what it costs and when to pick it.

jeremylongshore-tons-of-skills-marketplace-grammarly-dat-25876e.ocm.jsonjson

{
  "ocm": "1",
  "id": "jeremylongshore-tons-of-skills-marketplace-grammarly-dat-25876e",
  "kind": "skill",
  "name": "grammarly-data-safety-guardian",
  "description": "Audit and gate a Grammarly document-submission manifest offline before an authorized integration upload. Use when checking supported extensions, file-size and text-length metadata, approval, consent, retention, and approved destination. This skill never accepts or submits document content and is not a replacement for legal, privacy, or security approval. Trigger with \"Grammarly submission preflight\", \"Grammarly document safety\", or \"Grammarly retention check\".",
  "publisher": "jeremylongshore",
  "version": "1.0.0",
  "capabilities": {
    "domains": [
      "general"
    ],
    "tags": [
      "skill-md",
      "saas",
      "grammarly",
      "data-safety",
      "privacy",
      "governance",
      "skills-sh"
    ],
    "languages": [
      "en"
    ]
  },
  "quality_prior": 0.6,
  "examples": [
    "Audit and gate a Grammarly document-submission manifest offline before an authorized integration upload. Use when checking supported extensions, file-size and text-length metadata, approval, consent, retention, and approved destination. This skill never accepts or submits document content and is not a replacement for legal, privacy, or security approval. Trigger with \"Grammarly submission preflight\", \"Grammarly document safety\", or \"Grammarly retention check\"."
  ],
  "primary": false,
  "metadata": {
    "source": {
      "provider": "skills.sh",
      "repository": "https://github.com/jeremylongshore/tons-of-skills-marketplace",
      "path": "plugins/saas-packs/grammarly-pack/skills/grammarly-data-safety-guardian/SKILL.md",
      "ref": "HEAD",
      "url": "https://github.com/jeremylongshore/tons-of-skills-marketplace/blob/HEAD/plugins/saas-packs/grammarly-pack/skills/grammarly-data-safety-guardian/SKILL.md",
      "key": "jeremylongshore/tons-of-skills-marketplace/plugins/saas-packs/grammarly-pack/skills/grammarly-data-safety-guardian/SKILL.md"
    },
    "compatibility": "Agent Skills-compatible hosts; requires Python 3.10+",
    "allowed_tools": [
      "Bash(python3:*)"
    ],
    "license": "MIT"
  },
  "instructions": "# Grammarly Data Safety Guardian\n\nRun a deterministic preflight over a metadata-only submission manifest. The guard\nanswers whether a planned document upload satisfies this skill's hard safety gates;\nit does not read a document, contact Grammarly, create an upload URL, or retain a\ncopy of the manifest.\n\n## Overview\n\nThe guard is a closed-world policy check for a planned document submission. It\ncombines Grammarly's documented format and size constraints with local governance\ndecisions while keeping the document itself outside the workflow.\n\n## When to use\n\nUse for a Writing Score, AI Detection ",
  "cost": {
    "context_tokens": 1172
  }
}

Fetch it by URL: GET /api/v1/registry/jeremylongshore-tons-of-skills-marketplace-grammarly-dat-25876e/manifest?version=1.0.0

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