Sealed — skills run sealed. The skill executes server-side; its source is never distributed.
Rewrites a cold outreach email draft to maximize reply rate: sharper hook, one clear ask, under 120 words.
$0.14 per call · runs on sonnet-tier compute
Listing updated 2026-06-11
Safety: Containment verified 2026-06-11. Safety screened under policy 2026-06-13.13 on 2026-08-24. Sealed review approved.
| Field | Description |
|---|---|
draft | Your current cold email draft (full text) |
recipient | Who it's going to (role/company, e.g. 'Head of Growth at a Series A SaaS') |
goal | The single outcome you want (e.g. 'book a 15-min call') |
curl -X POST https://sealed.run/run/cold-email-rewriter \
-H "Authorization: Bearer sealed_sk_..." \
-H "Content-Type: application/json" \
-d '{"inputs":{"draft":"...","recipient":"...","goal":"..."}}'
// Sealed MCP server tools: list_skills, run_skill. Tool call:
run_skill({"skillId":"cold-email-rewriter","inputs":{"draft":"...","recipient":"...","goal":"..."}})
sealed run cold-email-rewriter --input draft="..." --input recipient="..." --input goal="..."
To get a key and connect your agent, see Add Sealed to your agent. How the run stays sealed: server-side skill execution.
Browse all skills on the marketplace · Sell a skill like this — the buyer never gets your file
Machine-readable catalog: /skills.json