Agent Browser CLI
vercel-labs/agent-browser
Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking…
Discord messaging via messagesend (channel=discord). An agent skill from understudy-ai/understudy.
MITAuto-check passed
Install Discord
$ npx skills add understudy-ai/understudy --skill discord -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install understudy-ai/understudy discord --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/understudy-ai/understudy.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/discord .claude/skills/discord && rm -rf skills-srcUse ~/.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/
Install the "discord" agent skill from https://github.com/understudy-ai/understudy/tree/main/skills/discord into .claude/skills/discord/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discord", 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 install https://github.com/understudy-ai/understudy/tree/main/skills/discordType 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.
$ npx skills add understudy-ai/understudy --skill discord -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install understudy-ai/understudy discord --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/understudy-ai/understudy.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/discord .agents/skills/discord && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "discord" agent skill from https://github.com/understudy-ai/understudy/tree/main/skills/discord into .agents/skills/discord/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discord", 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.
$ npx skills add understudy-ai/understudy --skill discord -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install understudy-ai/understudy discord --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/understudy-ai/understudy.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/discord .cursor/skills/discord && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "discord" agent skill from https://github.com/understudy-ai/understudy/tree/main/skills/discord into .cursor/skills/discord/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discord", 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 https://github.com/understudy-ai/understudy.git --path skills/discord--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add understudy-ai/understudy --skill discord -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install understudy-ai/understudy discord --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/understudy-ai/understudy.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/discord .gemini/skills/discord && rm -rf skills-srcUse ~/.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/
Install the "discord" agent skill from https://github.com/understudy-ai/understudy/tree/main/skills/discord into .gemini/skills/discord/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discord", 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.
$ gh skill install understudy-ai/understudy discordInstalls 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).
$ npx skills add understudy-ai/understudy --skill discord -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/understudy-ai/understudy.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/discord .github/skills/discord && rm -rf skills-srcUse ~/.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/
Install the "discord" agent skill from https://github.com/understudy-ai/understudy/tree/main/skills/discord into .github/skills/discord/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discord", 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.
$ npx skills add understudy-ai/understudy --skill discord -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install understudy-ai/understudy discord --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/understudy-ai/understudy.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/discord .opencode/skills/discord && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "discord" agent skill from https://github.com/understudy-ai/understudy/tree/main/skills/discord into .opencode/skills/discord/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "discord", 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
discord- GitHub stars
- 461
- Token cost
- ~641 tokens
- SKILL.md length
- 158 words
- Files
- 1
- Skills in repo
- 4
- Repo updated
- First seen
- Licence
- MIT
At a glance
Discord messaging via messagesend (channel=discord). An agent skill from understudy-ai/understudy.
- Attachment sends on Discord
- SKILL.md covers Musts, Guidelines, Targets and Common Actions (Examples), plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Discord is an agent skill from understudy-ai/understudy. Discord messaging via messagesend (channel=discord). Use for outbound sends, replies, edits, reactions, deletes, and attachment sends on Discord.
Its SKILL.md is about 640 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with Discord. The repository describes itself as: An understudy watches. Then performs. The licence is MIT.
When your agent uses it
- Attachment sends on Discord
Example prompts
- “/discord”
Requirements
- Pre-approved tools (allowed-tools): message_send
What it can do on your machine
Read from SKILL.md and the folder at commit 820cac1. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
message_send
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are json).
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
Discord loads about 641 tokens when it runs. Until then it costs about 39 tokens; SKILL.md has 158 words of instructions outside code blocks.
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 understudy-ai/understudy at commit 820cac1, republished under its MIT licence (© understudy-ai). 158 words, ~641 tokens.
Download SKILL.mdSave it as
.claude/skills/discord/SKILL.md (or your agent's skills folder).- name
- discord
- description
- Discord messaging via `message_send` (channel=discord). Use for outbound sends, replies, edits, reactions, deletes, and attachment sends on Discord.
- allowed-tools
- message_send
Discord (Via message_send)
Use the message_send tool. Understudy does not expose a separate provider-specific discord tool.
Musts
- Always:
channel: "discord". - Use the canonical
message_sendschema:recipient,text,threadId,replyTo,messageId,emoji,attachmentUrl,attachmentType,attachmentName,attachmentMimeType. - Prefer explicit ids in the recipient string when possible, for example
channel:1234567890oruser:1234567890.
Guidelines
- Avoid Markdown tables in outbound Discord messages.
- Mention users as
<@USER_ID>. - Keep Discord actions within the current Understudy tool surface. Do not invent unsupported fields such as
components,embeds,pollQuestion,thread-create,search, orset-presence.
Targets
- Send-like actions:
recipient: "channel:<id>"orrecipient: "user:<id>". - Message-specific actions: use
messageId, and includerecipientwhen the adapter needs target context.
Common Actions (Examples)
Send message:
{
"action": "send",
"channel": "discord",
"recipient": "channel:123",
"text": "hello"
}Reply to a message:
{
"action": "reply",
"channel": "discord",
"recipient": "channel:123",
"replyTo": "456",
"text": "Thanks, looking now."
}Send with attachment:
{
"action": "sendAttachment",
"channel": "discord",
"recipient": "channel:123",
"text": "see attachment",
"attachmentUrl": "/tmp/example.png",
"attachmentType": "image",
"attachmentName": "example.png"
}{
"action": "edit",
"channel": "discord",
"recipient": "channel:123",
"messageId": "456",
"text": "fixed typo"
}{
"action": "react",
"channel": "discord",
"recipient": "channel:123",
"messageId": "456",
"emoji": "✅"
}{
"action": "delete",
"channel": "discord",
"recipient": "channel:123",
"messageId": "456"
}If you need polls, search, thread creation, pins, moderation, or presence changes, tell the user the current Understudy tool surface does not expose those Discord-specific operations directly.
Writing Style (Discord)
- Short, conversational, low ceremony.
- No markdown tables.
- Mention users as
<@USER_ID>.
© understudy-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
Just SKILL.md in skills/discord of understudy-ai/understudy.
Open the folder on GitHubat commit 820cac1
Compare with similar skills
Discord 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Discord this skillunderstudy-ai/understudy | 461 | — | ~641 | Automated safety check: Pass | MIT | |
| Agent Browser CLIvercel-labs/agent-browser | 44k | 24 repos | ~864 | Automated safety check: Pass | Apache-2.0 | |
| Electron App Automationvercel-labs/agent-browser | 44k | 5 repos | ~1.7k | Automated safety check: Pass | Apache-2.0 | |
| Claude To Imop7418/Claude-to-IM-skill | 2.9k | — | ~3.4k | Automated safety check: Notes | MIT | |
| Sap Extension Creatorheshengtao/super-agent-party | 2.7k | — | ~6k | Automated safety check: Pass | AGPL-3.0 | |
| Libtv Videonexu-io/nexu | 3.3k | — | ~3.5k | Automated safety check: Pass | MIT |
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Works with
Questions about Discord
What does Discord do?
Discord messaging via messagesend (channel=discord). An agent skill from understudy-ai/understudy. Discord is an agent skill from understudy-ai/understudy. Discord messaging via messagesend (channel=discord).
When should I use Discord?
Discord fits situations like: attachment sends on Discord.
How do I install Discord in Claude Code?
Run `npx skills add understudy-ai/understudy --skill discord -a claude-code`. Or copy the skill folder (skills/discord in understudy-ai/understudy) into .claude/skills/discord in your project. Claude Code loads it when a task matches its description.
How do I install Discord in Codex?
Run `npx skills add understudy-ai/understudy --skill discord -a codex`. Or copy the skill folder (skills/discord in understudy-ai/understudy) into .agents/skills/discord in your project. Codex loads it when a task matches its description.
Can I use Discord 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 understudy-ai/understudy --skill discord -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/discord, .gemini/skills/discord, .github/skills/discord and .opencode/skills/discord in your project.
What does Discord need to run?
SKILL.md names no scripts, command-line tools or credentials: Discord is instructions for the agent only. Its frontmatter pre-approves these tools: message_send.
Does Discord 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 Discord 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 Discord use?
Discord is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Discord use?
About 641 tokens (SKILL.md is roughly 2.6k 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 Discord?
Skills that share tags, products or a category with Discord: Agent Browser CLI (vercel-labs/agent-browser, 44k stars), Electron App Automation (vercel-labs/agent-browser, 44k stars), Claude To Im (op7418/Claude-to-IM-skill, 2.9k stars) and Sap Extension Creator (heshengtao/super-agent-party, 2.7k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Discord?
understudy-ai (a GitHub organization) maintains it in understudy-ai/understudy, which has 461 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on June 19, 2026.
Source: understudy-ai/understudy on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.