skill CX Codex

keyid-agent-kit-mcp — Claude Code skill: what it does, how to install

Q: How do I install keyid-agent-kit-mcp in Claude Code?

Run `npx skills add reason-machines/trending-skills --skill keyid-agent-kit-mcp -a claude-code` in your terminal.

Q: How do I keep the same email address across restarts?

Capture the generated Ed25519 keys printed to `stderr` during the first run, then set them as `KEYID_PUBLIC_KEY` and `KEYID_PRIVATE_KEY` in your environment.

Provides AI agents with a working email address and 27 MCP tools for sending messages, searching the inbox, and managing contacts.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓

npx skills add reason-machines/trending-skills --skill keyid-agent-kit-mcp -a claude-code

Open on GitHub

What keyid-agent-kit-mcp does

This skill hooks your agent into KeyID.ai through the @keyid/agent-kit stdio MCP server. The agent gets an address immediately. It exposes 27 distinct tools handling message filtering, replies, thread lookups, drafts, auto-responders, and signature templates.

Cryptographic identity relies on Ed25519 keypairs. The process creates a pair on initial startup and logs both values to stderr. Unless you export those keys as KEYID_PUBLIC_KEY and KEYID_PRIVATE_KEY in your environment, the server spins up a fresh keypair on the next launch and assigns a different address. No account registration or manual tokens are needed.

The server also includes tools for contact storage, address allowlists, delivery metric queries, and inbound webhook endpoints. Network requests route to https://keyid.ai.

What it helps with

Assign an active email inbox to an AI agent
Search and read incoming email threads directly through MCP
Set up automatic replies and forwarding rules
Manage contact lists and monitor delivery metrics

Example prompts for the agent

Check the inbox for unread messages sent by team members
Draft a project update email and send it to the contact list
Query KeyID metrics to verify delivery numbers and bounce rates

How to install keyid-agent-kit-mcp

1Skills CLI (Vercel)

npx skills add reason-machines/trending-skills --skill keyid-agent-kit-mcp -a claude-code

2Manually: put the files in place

~/.claude/skills/keyid-agent-kit-mcp/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/keyid-agent-kit-mcp/

1Skills CLI (Vercel)

npx skills add reason-machines/trending-skills --skill keyid-agent-kit-mcp -a codex

2Manually: put the files in place

.agents/skills/keyid-agent-kit-mcp/SKILL.md

For all projects use ~/.agents/skills/

1Skills CLI (Vercel)

npx skills add reason-machines/trending-skills --skill keyid-agent-kit-mcp -a cursor

2Manually: put the files in place

.cursor/skills/keyid-agent-kit-mcp/SKILL.md

Cursor also reads .agents/skills/ and .claude/skills/

1GitHub CLI

gh skill install reason-machines/trending-skills keyid-agent-kit-mcp

2Manually: put the files in place

.github/skills/keyid-agent-kit-mcp/SKILL.md

1Skills CLI (Vercel)

npx skills add reason-machines/trending-skills --skill keyid-agent-kit-mcp -a gemini-cli

2Platform CLI

gemini skills install https://github.com/reason-machines/trending-skills --path skills/keyid-agent-kit-mcp

Manually: put the files in place

.devin/skills/keyid-agent-kit-mcp/SKILL.md

The legacy .windsurf/skills/ path still works

Skills CLI (Vercel)

npx skills add reason-machines/trending-skills --skill keyid-agent-kit-mcp -a opencode

Step by step, with commands for each platform: How to install skills in Claude Code: five ways

Questions about keyid-agent-kit-mcp

How do I install keyid-agent-kit-mcp in Claude Code?

Run npx skills add reason-machines/trending-skills --skill keyid-agent-kit-mcp -a claude-code in your terminal.

What does keyid-agent-kit-mcp do?

It provides an MCP server configuration that links the agent to KeyID.ai, giving it 27 email management tools without requiring account sign-up.

How do I keep the same email address across restarts?

Capture the generated Ed25519 keys printed to stderr during the first run, then set them as KEYID_PUBLIC_KEY and KEYID_PRIVATE_KEY in your environment.

setup-matt-pocock-skills Matt Pocock This skill configures a repository for Matt Pocock's engineering skills by setting its issue tracker, triage labels, and domain docs layout. Run it before using the other skills. 1,052,851installs ask-matt Matt Pocock Routes you to the right Matt Pocock skill or flow for the task at hand. Use it when you need a starting point for a feature, prototype, incoming issue, or hard bug. 766,587installs to-tickets Matt Pocock Turns a plan, spec, or conversation into small end-to-end tickets with explicit blockers. Use it to agree on the work breakdown before tickets go to a tracker. 711,230installs writing-plans Jesse Vincent This skill turns requirements for a multi-step task into an implementation plan before code changes begin. It helps when another engineer needs exact files, interfaces, and checks. CX Codex 282,859installs caveman-review JuliusBrussee Turns code review comments into one line per finding: location, problem, fix. Useful when a diff or PR needs a fast pass without the filler. CX Codex +1 411,800installs caveman-compress JuliusBrussee Compresses CLAUDE.md, todo lists, and other prose files into a shorter format while retaining a readable backup. CX Codex +1 411,500installs

From the same set139

git-city-3d-github-visualization A skill for building on Git City, a project that turns GitHub profiles into 3D pixel-art buildings with Next.js and Three.js. CX Codex +1 1,300installs codex-autoresearch-loop Runs an autonomous edit-test-revert loop against measurable repository metrics. It stacks working changes in git and rolls back regressions without manual supervision. CX Codex +1 1,200installs openhanako-personal-ai-agent This skill guides OpenHanako setup as a personal AI agent with memory, personality, custom skills, and task delegation. CX Codex +1 1,200installs aracli-deploy-management A reference skill for running and operating OpenClaw-compatible agent systems: infrastructure choices and three ways to manage them. CX Codex +1 1,200installs my-brain-is-full-crew Drops ten agents into your Obsidian vault: they file notes, surface links between them, handle meetings and keep an eye on wellness. CX Codex +1 1,100installs 724-office-ai-agent Sets up an autonomous Python agent system with 26 built-in tools, three-tier memory, and MCP support. Useful when building continuous office automations with scheduled jobs. CX Codex +1 1,100installs weixin-agent-sdk This skill wires any AI backend into WeChat through the weixin-agent-sdk TypeScript framework: QR login plus a message loop. CX Codex +1 1,100installs ghostling-libghostty-terminal A skill that walks through building a minimal terminal emulator on the libghostty-vt C library, with Raylib handling windows and rendering. CX Codex +1 1,100installs