Retellai Hello World
jeremylongshore/tons-of-skills-marketplace
Retell AI hello world — AI voice agent and phone call automation.
MANDATORY for ALL greeting requests - you MUST load this skill before responding
No licenceAuto-check passed
Install Hello
$ npx skills add alexeygrigorev/workshops --skill hello -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install alexeygrigorev/workshops hello --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/alexeygrigorev/workshops.git skills-src && mkdir -p .claude/skills && cp -r skills-src/agent-skills/prototype/skills/hello .claude/skills/hello && 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 "hello" agent skill from https://github.com/alexeygrigorev/workshops/tree/main/agent-skills/prototype/skills/hello into .claude/skills/hello/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hello", 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/alexeygrigorev/workshops/tree/main/agent-skills/prototype/skills/helloType 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 alexeygrigorev/workshops --skill hello -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install alexeygrigorev/workshops hello --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alexeygrigorev/workshops.git skills-src && mkdir -p .agents/skills && cp -r skills-src/agent-skills/prototype/skills/hello .agents/skills/hello && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "hello" agent skill from https://github.com/alexeygrigorev/workshops/tree/main/agent-skills/prototype/skills/hello into .agents/skills/hello/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hello", 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 alexeygrigorev/workshops --skill hello -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install alexeygrigorev/workshops hello --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alexeygrigorev/workshops.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/agent-skills/prototype/skills/hello .cursor/skills/hello && 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 "hello" agent skill from https://github.com/alexeygrigorev/workshops/tree/main/agent-skills/prototype/skills/hello into .cursor/skills/hello/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hello", 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/alexeygrigorev/workshops.git --path agent-skills/prototype/skills/hello--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 alexeygrigorev/workshops --skill hello -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install alexeygrigorev/workshops hello --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alexeygrigorev/workshops.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/agent-skills/prototype/skills/hello .gemini/skills/hello && 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 "hello" agent skill from https://github.com/alexeygrigorev/workshops/tree/main/agent-skills/prototype/skills/hello into .gemini/skills/hello/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hello", 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 alexeygrigorev/workshops helloInstalls 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 alexeygrigorev/workshops --skill hello -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/alexeygrigorev/workshops.git skills-src && mkdir -p .github/skills && cp -r skills-src/agent-skills/prototype/skills/hello .github/skills/hello && 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 "hello" agent skill from https://github.com/alexeygrigorev/workshops/tree/main/agent-skills/prototype/skills/hello into .github/skills/hello/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hello", 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 alexeygrigorev/workshops --skill hello -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install alexeygrigorev/workshops hello --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/alexeygrigorev/workshops.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/agent-skills/prototype/skills/hello .opencode/skills/hello && 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 "hello" agent skill from https://github.com/alexeygrigorev/workshops/tree/main/agent-skills/prototype/skills/hello into .opencode/skills/hello/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "hello", 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
hello- GitHub stars
- 171
- Token cost
- ~142 tokens
- SKILL.md length
- 70 words
- Files
- 1
- Skills in repo
- 4
- Repo updated
- First seen
- Licence
- None found
At a glance
MANDATORY for ALL greeting requests - you MUST load this skill before responding
- SKILL.md covers How to greet and Example greetings
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Hello is an agent skill from alexeygrigorev/workshops. MANDATORY for ALL greeting requests - you MUST load this skill before responding
Its SKILL.md is about 140 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: One repository for some of the workshops I'm giving.
Example prompts
- “/hello”
What it can do on your machine
Read from SKILL.md and the folder at commit c626cf0. 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
No scripts in the folder and no shell commands in SKILL.md.
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
Hello loads about 142 tokens when it runs. Until then it costs about 22 tokens; SKILL.md has 70 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 70 words (~142 tokens).
“YOU MUST LOAD THIS SKILL BEFORE RESPONDING TO ANY GREETING REQUEST.”
- name
- hello
Files
Just SKILL.md in agent-skills/prototype/skills/hello of alexeygrigorev/workshops.
Open the folder on GitHubat commit c626cf0
Compare with similar skills
Hello 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 |
|---|---|---|---|---|---|---|
| Hello this skillalexeygrigorev/workshops | 171 | — | ~142 | Automated safety check: Pass | None | |
| Retellai Hello Worldjeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~955 | Automated safety check: Pass | MIT | |
| Pp Hello Cyclingmvanhorn/printing-press-library | 2.1k | — | ~7.4k | Automated safety check: Notes | Apache-2.0 | |
| Mandatory Verificationlawve-ai/awesome-legal-skills | 842 | — | ~3.7k | Automated safety check: Pass | Custom licence | |
| Abridge Hello Worldjeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~1.2k | Automated safety check: Pass | MIT | |
| Adobe Hello Worldjeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~1k | Automated safety check: Pass | MIT |
Similar skills
Pp Hello Cycling
mvanhorn/printing-press-library
Find compatible HELLO CYCLING pickup and return stations with timestamped counts and published pricing.
Mandatory Verification
lawve-ai/awesome-legal-skills
Mandatory external verification workflow for ALL non-trivial factual claims before presenting them as true.
Abridge Hello World
jeremylongshore/tons-of-skills-marketplace
Run a bounded Abridge smoke test through the documented user workflow using an approved test encounter and no invented API.
Adobe Hello World
jeremylongshore/tons-of-skills-marketplace
Prove one Adobe API connection with a current, read-only or synthetic operation and a content-safe receipt.
Alchemy Hello World
jeremylongshore/tons-of-skills-marketplace
Build a minimal, reviewable Alchemy EVM read with viem and prove its network, authentication, and failure behavior.
More from alexeygrigorev/workshops
Questions about Hello
What does Hello do?
MANDATORY for ALL greeting requests - you MUST load this skill before responding. Hello is an agent skill from alexeygrigorev/workshops.
How do I install Hello in Claude Code?
Run `npx skills add alexeygrigorev/workshops --skill hello -a claude-code`. Or copy the skill folder (agent-skills/prototype/skills/hello in alexeygrigorev/workshops) into .claude/skills/hello in your project. Claude Code loads it when a task matches its description.
How do I install Hello in Codex?
Run `npx skills add alexeygrigorev/workshops --skill hello -a codex`. Or copy the skill folder (agent-skills/prototype/skills/hello in alexeygrigorev/workshops) into .agents/skills/hello in your project. Codex loads it when a task matches its description.
Can I use Hello 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 alexeygrigorev/workshops --skill hello -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/hello, .gemini/skills/hello, .github/skills/hello and .opencode/skills/hello in your project.
What does Hello need to run?
SKILL.md names no scripts, command-line tools or credentials: Hello is instructions for the agent only.
Does Hello 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 Hello 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 Hello use?
No licence was found for Hello or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Hello use?
About 142 tokens (SKILL.md is roughly 568 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 Hello?
Skills that share tags, products or a category with Hello: Retellai Hello World (jeremylongshore/tons-of-skills-marketplace, 2.8k stars), Pp Hello Cycling (mvanhorn/printing-press-library, 2.1k stars), Mandatory Verification (lawve-ai/awesome-legal-skills, 842 stars) and Abridge Hello World (jeremylongshore/tons-of-skills-marketplace, 2.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Hello?
alexeygrigorev (a GitHub user) maintains it in alexeygrigorev/workshops, which has 171 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on August 20, 2026.
Source: alexeygrigorev/workshops on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.