New: 98,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

Prismer Imessage

by Prismer-AI in Prismer-AI/PrismerCloud

Send and receive iMessages/SMS via the imsg CLI on macOS. An agent skill from Prismer-AI/PrismerCloud.

MITAuto-check passedProductivity & Automation

Install Prismer Imessage

skills CLI
$ npx skills add Prismer-AI/PrismerCloud --skill prismer-imessage -a claude-code

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

GitHub CLI
$ gh skill install Prismer-AI/PrismerCloud prismer-imessage --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/Prismer-AI/PrismerCloud.git skills-src && mkdir -p .claude/skills && cp -r skills-src/sdk/cloud/catalog/skills/prismer-imessage .claude/skills/prismer-imessage && 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/

Facts

Skill name
prismer-imessage
GitHub stars
1.6k
Token cost
~962 tokens
SKILL.md length
342 words
Files
4 (incl. scripts)
Skills in repo
88
Repo updated
First seen
Licence
MIT

At a glance

Send and receive iMessages/SMS via the imsg CLI on macOS. An agent skill from Prismer-AI/PrismerCloud.

  • Works in 4 steps: Use an explicitly authorized exact… → Never send to unknown numbers without… → Verify both file existence and… → …
  • Tasks that involve Messaging and chat bots
  • SKILL.md covers Prismer execution contract, Prerequisites, When to Use and When NOT to Use, plus 4 more sections
  • Runs Python scripts from its folder; calls python3 and brew

What it does

Prismer Imessage is an agent skill from Prismer-AI/PrismerCloud. Send and receive iMessages/SMS via the imsg CLI on macOS.

Its SKILL.md is about 960 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including scripts (for example `NOTICE.md` and `scripts/readiness.py`).

It sits in Productivity & Automation, covering Messaging and chat bots. It works with macOS. The licence is MIT.

When your agent uses it

  • Tasks that involve Messaging and chat bots

Example prompts

  • “/prismer-imessage”

Requirements

  • Python 3

Workflow steps

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

  1. Use an explicitly authorized exact recipient/content; clarify ambiguous identities only
  2. Never send to unknown numbers without explicit user approval
  3. Verify both file existence and authorization to send that specific content
  4. Don't spam — rate-limit yourself

What it can do on your machine

Read from SKILL.md and the folder at commit e5d9444. 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

    Ships 1 file in scripts/ (Python), which the agent can run.

    Shell commands in SKILL.md call:

    • python3
    • brew

    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

Prismer Imessage loads about 962 tokens when it runs. Until then it costs about 19 tokens; SKILL.md has 342 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~19
When it runs · the whole SKILL.md, loaded when a task matches
~962

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); the scripts in this folder are not scanned.

SKILL.md

The full file from Prismer-AI/PrismerCloud at commit e5d9444, republished under its MIT licence (© Prismer-AI). 342 words, ~962 tokens.

Download SKILL.mdSave it as .claude/skills/prismer-imessage/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.
name
prismer-imessage
description
Send and receive iMessages/SMS via the imsg CLI on macOS.
scope
common
version
1.0.0
author
Hermes Agent
license
MIT
platforms
macos
metadata.nativeReplaces
imessage
metadata.requiresExplicitGrant
true
prerequisites.commands
imsg

Prismer execution contract

This is the uniquely named prismer-imessage skill, adapted from Hermes. Use the actual tools exposed by the executing host; examples using terminal, process, delegate_task, vision_analyze or browser_* are not tool registrations. Missing dependencies do not hide this skill. Report command startup, version, account/permissions and task-specific live verification separately. Use task-owned artifact paths and existing user authorization; do not change shared accounts, Runtime/provider configuration, global security settings or unrelated work. See NOTICE.md and LICENSE for resource provenance. Runtime availability and upstream-entry suppression are owned by the integration layer.

iMessage

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

Prerequisites

Run python3 "$SKILL_ROOT/scripts/readiness.py" imessage from this installed skill's resolved directory. Help checks flags only; account, Full Disk Access, Automation, SMS forwarding and delivery require separate authorized live checks.

  • macOS with Messages.app signed in
  • Install: brew install steipete/tap/imsg
  • Grant Full Disk Access for terminal (System Settings → Privacy → Full Disk Access)
  • Grant Automation permission for Messages.app when prompted

When to Use

  • User asks to send an iMessage or text message
  • Reading iMessage conversation history
  • Checking recent Messages.app chats
  • Sending to phone numbers or Apple IDs

When NOT to Use

  • Telegram/Discord/Slack/WhatsApp messages → use the appropriate gateway channel
  • Group chat management (adding/removing members) → not supported
  • Bulk/mass messaging → always confirm with user first

Quick Reference

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
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

# Force iMessage or SMS
imsg send --to "+14155551212" --text "Hi" --service imessage
imsg send --to "+14155551212" --text "Hi" --service sms
Watch for New Messages
bash
imsg watch --chat-id 1 --attachments

Watch only for the user-authorized chat and duration; terminate the process at that deadline. Do not capture a continuous stream as an incidental diagnostic.

Service Options

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

Rules

  1. Use an explicitly authorized exact recipient/content; clarify ambiguous identities only
  2. Never send to unknown numbers without explicit user approval
  3. Verify both file existence and authorization to send that specific content
  4. Don't spam — rate-limit yourself

Example Workflow

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

bash
# 1. Read candidates, then resolve the exact chat handle or phone number.
imsg chats --limit 20 --json

# 2. A display name is not unique. Clarify only if the authorized recipient is ambiguous.

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

After an uncertain send, read back the target chat before retrying; do not create duplicate messages. A local command exit is not proof of remote delivery.

© Prismer-AI, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 3 other files (scripts) in sdk/cloud/catalog/skills/prismer-imessage of Prismer-AI/PrismerCloud.

  • SKILL.md
  • LICENSE
  • NOTICE.md
  • scripts/readiness.py

Open the folder on GitHubat commit e5d9444

Compare with similar skills

Prismer Imessage 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.

Prismer Imessage compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Prismer Imessage this skillPrismer-AI/PrismerCloud1.6k—~962Automated safety check: PassMIT
Slack Messaginghaojing8312/WorkClaw141—~897Automated safety check: PassApache-2.0
Imsggeezerrrr/motive1158 repos~273Automated safety check: PassMIT
ImessageRedWoodOG/Hermes-Desktop1774 repos~606Automated safety check: PassMIT
Icloud Pp CLImvanhorn/printing-press-library2.1k—~1.9kAutomated safety check: NotesApache-2.0
Yichen Mac Wechat Dual Openmcncarl/yichen-skills4.4k—~1.5kAutomated safety check: PassCustom licence

Similar skills

  • Slack Messaging

    haojing8312/WorkClaw

    A skill your agent uses when asked to send or read Slack messages, check Slack channels, test Slack integrations, or interact with a Slack workspace from the command line.

    141 GitHub stars~897 tokensUpdated 4 mo ago
    Productivity & AutomationAuto-check passed

  • Imsg

    geezerrrr/motive

    iMessage/SMS CLI for listing chats, history, watch, and sending.

    115 GitHub starsUsed in 8 repos~273 tokens
    Productivity & AutomationAuto-check passed

  • Imessage

    RedWoodOG/Hermes-Desktop

    Send and receive iMessages/SMS via the imsg CLI on macOS. An agent skill from RedWoodOG/Hermes-Desktop.

    177 GitHub starsUsed in 4 repos~606 tokens
    Productivity & AutomationAuto-check passed

  • Icloud Pp CLI

    mvanhorn/printing-press-library

    Query your Apple iCloud data from the command line — Photos library storage analysis, iMessage history search and export, largest-file finder, and delete via AppleScript.

    2.1k GitHub stars~1.9k tokensUpdated yesterday
    Productivity & AutomationAuto-check: notes

  • Yichen Mac Wechat Dual Open

    mcncarl/yichen-skills

    Create, inspect, repair, and polish a second WeChat app on macOS by copying WeChat, changing the bundle identifier, ad-hoc re-signing, preparing it for the user to open manually, setting Chinese…

    4.4k GitHub stars~1.5k tokensUpdated 7 days ago
    Productivity & AutomationAuto-check passed

  • Feishu Bridge

    AlexAnys/feishu-openclaw

    Connect a Feishu (Lark) bot to Clawdbot via WebSocket long-connection.

    317 GitHub starsUsed in 1 repo~615 tokens
    Productivity & AutomationAuto-check passed

More from Prismer-AI/PrismerCloud

All 88 skills in this repo

  • Prismer Google Workspace

    Prismer-AI/PrismerCloud

    Gives an agent account-scoped access to Gmail, Calendar, Drive, Contacts, Docs and Sheets through the gws CLI or a bundled Python client.

    1.6k GitHub starsUsed in 3 repos~4.2k tokens
    Auto-check passed

  • Prismer Skill Creator

    Prismer-AI/PrismerCloud

    Walks an agent through creating, importing, editing, validating, testing and publishing Prismer Skills with a fixed workflow and bundled scripts.

    1.6k GitHub stars~2.6k tokensUpdated today
    Auto-check: notes

  • Himalaya Email CLI

    Prismer-AI/PrismerCloud

    Operates a mailbox from the terminal with the external Himalaya CLI over IMAP, SMTP, Notmuch or Sendmail, separate from any built-in email gateway adapter.

    1.6k GitHub starsUsed in 2 repos~2.3k tokens
    Auto-check passed

  • Prismer Image Generation

    Prismer-AI/PrismerCloud

    Generates one image from a text prompt with a bundled Node.js helper and delivers it once as the attachment to the current Prismer reply.

    1.6k GitHub stars~1.4k tokensUpdated today
    Auto-check passed

  • Manim Explainer Videos

    Prismer-AI/PrismerCloud

    Produces 3Blue1Brown-style explainer animations with Manim Community Edition for math, algorithms, equations and architecture diagrams, with planning and rendering references.

    1.6k GitHub starsUsed in 2 repos~3.1k tokens
    Auto-check passed

  • Prismer Role Builder

    Prismer-AI/PrismerCloud

    Creates or updates Prismer role templates from a persona, SOP or job description, and turns a role into a working agent that runs its first task through a bundled script.

    1.6k GitHub stars~2.3k tokensUpdated today
    Auto-check: notes

Works with

Categories

Questions about Prismer Imessage

What does Prismer Imessage do?

Send and receive iMessages/SMS via the imsg CLI on macOS. An agent skill from Prismer-AI/PrismerCloud. Prismer Imessage is an agent skill from Prismer-AI/PrismerCloud. Send and receive iMessages/SMS via the imsg CLI on macOS.

When should I use Prismer Imessage?

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

How do I install Prismer Imessage in Claude Code?

Run `npx skills add Prismer-AI/PrismerCloud --skill prismer-imessage -a claude-code`. Or copy the skill folder (sdk/cloud/catalog/skills/prismer-imessage in Prismer-AI/PrismerCloud) into .claude/skills/prismer-imessage in your project. Claude Code loads it when a task matches its description.

How do I install Prismer Imessage in Codex?

Run `npx skills add Prismer-AI/PrismerCloud --skill prismer-imessage -a codex`. Or copy the skill folder (sdk/cloud/catalog/skills/prismer-imessage in Prismer-AI/PrismerCloud) into .agents/skills/prismer-imessage in your project. Codex loads it when a task matches its description.

Can I use Prismer Imessage 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 Prismer-AI/PrismerCloud --skill prismer-imessage -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/prismer-imessage, .gemini/skills/prismer-imessage, .github/skills/prismer-imessage and .opencode/skills/prismer-imessage in your project.

What does Prismer Imessage need to run?

Going by SKILL.md and its folder, Prismer Imessage needs Python for the scripts in its folder and the command-line tools its instructions call (python3 and brew). Our summary lists: Python 3.

Does Prismer Imessage 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 Prismer Imessage 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Prismer Imessage use?

Prismer Imessage is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Prismer Imessage use?

About 962 tokens (SKILL.md is roughly 3.8k 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 Prismer Imessage?

Skills that share tags, products or a category with Prismer Imessage: Slack Messaging (haojing8312/WorkClaw, 141 stars), Imsg (geezerrrr/motive, 115 stars), Imessage (RedWoodOG/Hermes-Desktop, 177 stars) and Icloud Pp CLI (mvanhorn/printing-press-library, 2.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Prismer Imessage?

Prismer-AI (a GitHub organization) maintains it in Prismer-AI/PrismerCloud, which has 1,555 GitHub stars. The repository holds 88 skills in this directory. The repository was last updated on September 30, 2026.

Source: Prismer-AI/PrismerCloud on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.