cooper-email SKILL.md skillA
cooper-email from davepoon/buildwithclaude is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add davepoon/buildwithclaude/cooper-email@git:20261025.38c1447Pins git:20261025.38c1447 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- davepoon/buildwithclaude
- Path
plugins/all-skills/skills/cooper-email/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261025.38c1447, committed Oct 25, 2026
- Size
- 6,751 bytes
- Repository stars
- 3,724
- License
- MIT
Give Claude its own email inbox with Cooper Email to send, receive, reply, and wait for replies or verification codes over a hosted MCP server or HTTP. Use when the user wants the agent to have its own email address, not access to the user's mailbox.
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
# Cooper Email Cooper Email gives Claude a real address (`username@cooperemail.com`) that sends and receives email through a hosted MCP server (`https://cooperemail.com/mcp`) or a small HTTP API (`https://cooperemail.com/api/v1`). One unauthenticated request creates the account, the inbox, and an API key, so the agent can set itself up without a dashboard. The free plan has 5 inboxes and 5,000 emails a month with no card. ## When to Use This Skill - The agent needs its own email address, or one per project or run. - The agent must send email as itself, read the replies, and answer on the same thread. - The agent is waiting for a reply, a confirmation link, or a sign-up or login code. Do not use it to read or send from the user's personal mailbox. Cooper only sees mail sent to Cooper inboxes. ## What This Skill Does 1. Reuses `COOPER_API_KEY` if it is set, or creates an account, inbox, and key with one request after the user approves the username. 2. Connects the remote MCP server only after showing the exact `claude mcp add` command and getting a yes. …
Read the whole file at its exact version.
How to install
mdr add davepoon/buildwithclaude/cooper-email@sha256:a98c5d625e5a96bcThe line at the top of this page pins the label git:20261025.38c1447, 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_svfzuawyhxij3eh5)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 25, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (6751 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 instruction to send local credentials anywhere
- 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 instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
davepoon/buildwithclaude · 3,724 stars · license MIT · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_svfzuawyhxij3eh5 GET https://markdownregistry.com/api/v1/resolve?ref=davepoon/buildwithclaude/cooper-email GET https://markdownregistry.com/api/v1/blob/a98c5d625e5a96bc218dee8ca9d6f7f123f428e5fff9c511de9c34114969ce45
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.