email-connector SKILL.md skillF
email-connector from ericrisco/rsc-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ericrisco/rsc-harness/email-connector@git:20260729.a707f94Pins git:20260729.a707f94 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- F, 15 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ericrisco/rsc-harness
- Path
skills/email-connector/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260729.a707f94, committed Jul 29, 2026
- First version recorded
- Jun 2, 2026
- Size
- 12,604 bytes
- Repository stars
- 236
- License
- MIT
Use when wiring server code to send transactional or bulk email via Resend, SendGrid, or Postmark: a provider-agnostic sendEmail() seam, idempotent retries, 100-cap batches with partial failures, transactional-vs-broadcast streams, bounce webhooks feeding a suppression list. NOT SPF/DKIM/DMARC inbox reputation (that is `email-deliverability`).
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# email-connector — put transactional & bulk email on the wire You wire the *send*. A welcome mail, a password reset, a receipt, a 4,000-row digest — your job is the server code that hands it to a provider, makes it safe to retry, and keeps the suppression list honest. You do **not** own the inbox (SPF/DKIM/DMARC/reputation is `../email-deliverability/SKILL.md`) and you do **not** own the words (subject lines and growth are `../newsletter/SKILL.md`, launch copy is `../marketing/SKILL.md`). Generic typed clients for *any* REST API are `../api-connector-builder/SKILL.md`; deciding *when* a multi-step sequence fires is `../automation-flows/SKILL.md`. Stack as of June 2026: `resend` 6.12.4, `@sendgrid/mail` 8.1.6, Postmark via its HTTP API, React Email 5.0 (React 19.2 / Next.js 16, Tailwind 4), Node 20+ / TS. `scripts/verify.sh` is read-only and greps a target for the four invariants this skill exists to hold: env-sourced key, idempotency, a single `sendEmail()` seam, and a webhook signature checked on the raw body. ## Step 1 — pick a provider | Provider | Best default fit | Native idempotency | Template model | Batch cap | Pick when | …
Read the whole file at its exact version.
How to install
mdr add ericrisco/rsc-harness/email-connector@sha256:99d385dfa55cedcfThe line at the top of this page pins the label git:20260729.a707f94, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_gidjs4rxbt4zoune)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jun 2, 2026 and Jul 29, 2026, about one every 57 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260729.a707f94 latest | 2026-07-29 | a707f94 | 12,604 B | F | view · diff |
| git:20260602.b03d416 | 2026-06-02 | b03d416 | 13,672 B | F | view |
Audit of the latest version
- FAIL, critical: No instruction to send local credentials anywhere (matched: send = new Resend(process.env)
- fail: No instruction to read or print local credentials (matched: Read from `process.env)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (12604 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
ericrisco/rsc-harness · 236 stars · license MIT · pushed 2026-10-21 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_gidjs4rxbt4zoune GET https://markdownregistry.com/api/v1/resolve?ref=ericrisco/rsc-harness/email-connector GET https://markdownregistry.com/api/v1/blob/99d385dfa55cedcfe6fa9747102ea7bd4d56e237233bac616992235b7ee5a26a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.