Agent skill

Imsg

by trpc-group in trpc-group/trpc-agent-go

iMessage/SMS CLI for listing chats, history, and sending messages via Messages.app.

Apache-2.0Auto-check passedProductivity & Automation

Install Imsg

skills CLI

$ npx skills add trpc-group/trpc-agent-go --skill imsg -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install trpc-group/trpc-agent-go imsg --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/trpc-group/trpc-agent-go.git skills-src && mkdir -p .claude/skills && cp -r skills-src/openclaw/skills/imsg .claude/skills/imsg && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "imsg" agent skill from https://github.com/trpc-group/trpc-agent-go/tree/main/openclaw/skills/imsg into .claude/skills/imsg/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "imsg", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/trpc-group/trpc-agent-go/tree/main/openclaw/skills/imsg

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add trpc-group/trpc-agent-go --skill imsg -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install trpc-group/trpc-agent-go imsg --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/trpc-group/trpc-agent-go.git skills-src && mkdir -p .agents/skills && cp -r skills-src/openclaw/skills/imsg .agents/skills/imsg && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "imsg" agent skill from https://github.com/trpc-group/trpc-agent-go/tree/main/openclaw/skills/imsg into .agents/skills/imsg/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "imsg", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add trpc-group/trpc-agent-go --skill imsg -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install trpc-group/trpc-agent-go imsg --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/trpc-group/trpc-agent-go.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/openclaw/skills/imsg .cursor/skills/imsg && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "imsg" agent skill from https://github.com/trpc-group/trpc-agent-go/tree/main/openclaw/skills/imsg into .cursor/skills/imsg/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "imsg", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/trpc-group/trpc-agent-go.git --path openclaw/skills/imsg

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add trpc-group/trpc-agent-go --skill imsg -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install trpc-group/trpc-agent-go imsg --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/trpc-group/trpc-agent-go.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/openclaw/skills/imsg .gemini/skills/imsg && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "imsg" agent skill from https://github.com/trpc-group/trpc-agent-go/tree/main/openclaw/skills/imsg into .gemini/skills/imsg/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "imsg", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install trpc-group/trpc-agent-go imsg

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add trpc-group/trpc-agent-go --skill imsg -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/trpc-group/trpc-agent-go.git skills-src && mkdir -p .github/skills && cp -r skills-src/openclaw/skills/imsg .github/skills/imsg && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "imsg" agent skill from https://github.com/trpc-group/trpc-agent-go/tree/main/openclaw/skills/imsg into .github/skills/imsg/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "imsg", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add trpc-group/trpc-agent-go --skill imsg -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install trpc-group/trpc-agent-go imsg --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/trpc-group/trpc-agent-go.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/openclaw/skills/imsg .opencode/skills/imsg && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "imsg" agent skill from https://github.com/trpc-group/trpc-agent-go/tree/main/openclaw/skills/imsg into .opencode/skills/imsg/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "imsg", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: imsg
GitHub stars: 1.8k
Used in: 6 other repos
Token cost: ~736 tokens
SKILL.md length: 203 words
Files: 1
Skills in repo: 47
Repo updated: Oct 8, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

iMessage/SMS CLI for listing chats, history, and sending messages via Messages.app.

Works in 4 steps: Always confirm recipient and message… → Never send to unknown numbers without… → Be careful with attachments — confirm… → …
Tasks that involve Messaging and chat bots
SKILL.md covers When to Use, When NOT to Use, Requirements and Common Commands, plus 3 more sections
Calls jq

What it does

Imsg is an agent skill from trpc-group/trpc-agent-go. iMessage/SMS CLI for listing chats, history, and sending messages via Messages.app.

Its SKILL.md is about 740 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Productivity & Automation, covering Messaging and chat bots. The repository describes itself as: A Go framework for building production agent systems with graph workflows, tools, memory, A2A, AG-UI, MCP, evaluation, and observability. The licence is Apache-2.0.

When your agent uses it

Tasks that involve Messaging and chat bots

Example prompts

“/imsg”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

Always confirm recipient and message content before sending
Never send to unknown numbers without explicit user approval
Be careful with attachments — confirm file path exists
Rate limit yourself — don't spam

What it can do on your machine

Read from SKILL.md and the folder at commit 9bb1c42. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
- jq
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Imsg loads about 736 tokens when it runs. Until then it costs about 22 tokens; SKILL.md has 203 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~22
When it runs · the whole SKILL.md, loaded when a task matches: ~736

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from trpc-group/trpc-agent-go at commit 9bb1c42, republished under its Apache-2.0 licence (© trpc-group). 203 words, ~736 tokens.

Download SKILL.mdSave it as .claude/skills/imsg/SKILL.md (or your agent's skills folder).

name: imsg
description: iMessage/SMS CLI for listing chats, history, and sending messages via Messages.app.
homepage: https://imsg.to

imsg

Use imsg to read and send iMessage/SMS via macOS Messages.app.

When to Use

✅ USE this skill when:

User explicitly asks to send iMessage or SMS
Reading iMessage conversation history
Checking recent Messages.app chats
Sending to phone numbers or Apple IDs

When NOT to Use

❌ DON'T use this skill when:

Telegram messages → use message tool with channel:telegram
Signal messages → use Signal channel if configured
WhatsApp messages → use WhatsApp channel if configured
Discord messages → use message tool with channel:discord
Slack messages → use slack skill
Group chat management (adding/removing members) → not supported
Bulk/mass messaging → always confirm with user first
Replying in current conversation → just reply normally (Clawdbot routes automatically)

Requirements

macOS with Messages.app signed in
Full Disk Access for terminal
Automation permission for Messages.app (for sending)

Common Commands

List Chats

bash

imsg chats --limit 10 --json

View History

bash

# By chat ID
imsg history --chat-id 1 --limit 20 --json

# With attachments info
imsg history --chat-id 1 --limit 20 --attachments --json

Watch for New Messages

bash

imsg watch --chat-id 1 --attachments

Send Messages

bash

# Text only
imsg send --to "+14155551212" --text "Hello!"

# With attachment
imsg send --to "+14155551212" --text "Check this out" --file /path/to/image.jpg

# Specify service
imsg send --to "+14155551212" --text "Hi" --service imessage
imsg send --to "+14155551212" --text "Hi" --service sms

Service Options

--service imessage — Force iMessage (requires recipient has iMessage)
--service sms — Force SMS (green bubble)
--service auto — Let Messages.app decide (default)

Safety Rules

Always confirm recipient and message content before sending
Never send to unknown numbers without explicit user approval
Be careful with attachments — confirm file path exists
Rate limit yourself — don't spam

Example Workflow

User: "Text mom that I'll be late"

bash

# 1. Find mom's chat
imsg chats --limit 20 --json | jq '.[] | select(.displayName | contains("Mom"))'

# 2. Confirm with user
# "Found Mom at +1555123456. Send 'I'll be late' via iMessage?"

# 3. Send after confirmation
imsg send --to "+1555123456" --text "I'll be late"

Files

Just SKILL.md in openclaw/skills/imsg of trpc-group/trpc-agent-go.

Open the folder on GitHubat commit 9bb1c42

Used in 6 other repositories

We found 6 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 6 other GitHub owners. This page covers the copy in trpc-group/trpc-agent-go, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Imsg next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Imsg compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Imsg this skilltrpc-group/trpc-agent-go	1.8k	6 repos	~736	Automated safety check: Pass	Apache-2.0	today
Feishu Docopenclaw/openclaw	392k	—	~516	Automated safety check: Pass	MIT	today
She Love Me863401402/she-love-me	919	1 repos	~1.3k	Automated safety check: Pass	MIT	7 days ago
Feishu Docraucvr/Group-Goki	112	3 repos	~592	Automated safety check: Pass	MIT	4 mo ago
Slackhuangruiteng/CS-Notes	4k	10 repos	~578	Automated safety check: Pass	MIT	2 days ago
Wechat Article Extractorfreestylefly/wechat-article-extractor-skill	136	1 repos	~1k	Automated safety check: Pass	None	7 mo ago

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Questions about Imsg

What does Imsg do?

iMessage/SMS CLI for listing chats, history, and sending messages via Messages.app. Imsg is an agent skill from trpc-group/trpc-agent-go.app.

When should I use Imsg?

Imsg fits situations like: tasks that involve Messaging and chat bots.

How do I install Imsg in Claude Code?

Run `npx skills add trpc-group/trpc-agent-go --skill imsg -a claude-code`. Or copy the skill folder (openclaw/skills/imsg in trpc-group/trpc-agent-go) into .claude/skills/imsg in your project. Claude Code loads it when a task matches its description.

How do I install Imsg in Codex?

Run `npx skills add trpc-group/trpc-agent-go --skill imsg -a codex`. Or copy the skill folder (openclaw/skills/imsg in trpc-group/trpc-agent-go) into .agents/skills/imsg in your project. Codex loads it when a task matches its description.

Can I use Imsg in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add trpc-group/trpc-agent-go --skill imsg -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/imsg, .gemini/skills/imsg, .github/skills/imsg and .opencode/skills/imsg in your project.

What does Imsg need to run?

Going by SKILL.md and its folder, Imsg needs the command-line tools its instructions call (jq).

Does Imsg access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Imsg safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Imsg use?

Imsg is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Imsg use?

About 736 tokens (SKILL.md is roughly 2.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Imsg?

Skills that share tags, products or a category with Imsg: Feishu Doc (openclaw/openclaw, 392k stars), She Love Me (863401402/she-love-me, 919 stars), Feishu Doc (raucvr/Group-Goki, 112 stars) and Slack (huangruiteng/CS-Notes, 4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Imsg?

trpc-group (a GitHub organization) maintains it in trpc-group/trpc-agent-go, which has 1,848 GitHub stars. The repository holds 47 skills in this directory. The repository was last updated on October 8, 2026.

Source: trpc-group/trpc-agent-go on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Imsg

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

imsg

When to Use

When NOT to Use

Requirements

Common Commands

List Chats

View History

Watch for New Messages

Send Messages

Service Options

Safety Rules

Example Workflow

Files

Used in 6 other repositories

Compare with similar skills

Similar skills

More from trpc-group/trpc-agent-go

Related

Questions about Imsg