Internal Communications Writer
anthropics/skills
A set of resources to help me write all kinds of internal communications, using the formats that my company likes to use. Claude should use this skill…
Draft, update, or audit a crisp, changelog-grounded Anarlog product-update newsletter in Loops for a desktop release.
Install Product Update Newsletter
$ npx skills add fastrepl/anarlog --skill product-update-newsletter -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install fastrepl/anarlog product-update-newsletter --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/fastrepl/anarlog.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/product-update-newsletter .claude/skills/product-update-newsletter && 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 "product-update-newsletter" agent skill from https://github.com/fastrepl/anarlog/tree/main/.claude/skills/product-update-newsletter into .claude/skills/product-update-newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "product-update-newsletter", 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/fastrepl/anarlog/tree/main/.claude/skills/product-update-newsletterType 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 fastrepl/anarlog --skill product-update-newsletter -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install fastrepl/anarlog product-update-newsletter --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/fastrepl/anarlog.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/product-update-newsletter .agents/skills/product-update-newsletter && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "product-update-newsletter" agent skill from https://github.com/fastrepl/anarlog/tree/main/.claude/skills/product-update-newsletter into .agents/skills/product-update-newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "product-update-newsletter", 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 fastrepl/anarlog --skill product-update-newsletter -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install fastrepl/anarlog product-update-newsletter --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/fastrepl/anarlog.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/product-update-newsletter .cursor/skills/product-update-newsletter && 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 "product-update-newsletter" agent skill from https://github.com/fastrepl/anarlog/tree/main/.claude/skills/product-update-newsletter into .cursor/skills/product-update-newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "product-update-newsletter", 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/fastrepl/anarlog.git --path .claude/skills/product-update-newsletter--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 fastrepl/anarlog --skill product-update-newsletter -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install fastrepl/anarlog product-update-newsletter --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/fastrepl/anarlog.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/product-update-newsletter .gemini/skills/product-update-newsletter && 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 "product-update-newsletter" agent skill from https://github.com/fastrepl/anarlog/tree/main/.claude/skills/product-update-newsletter into .gemini/skills/product-update-newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "product-update-newsletter", 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 fastrepl/anarlog product-update-newsletterInstalls 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 fastrepl/anarlog --skill product-update-newsletter -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/fastrepl/anarlog.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/product-update-newsletter .github/skills/product-update-newsletter && 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 "product-update-newsletter" agent skill from https://github.com/fastrepl/anarlog/tree/main/.claude/skills/product-update-newsletter into .github/skills/product-update-newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "product-update-newsletter", 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 fastrepl/anarlog --skill product-update-newsletter -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install fastrepl/anarlog product-update-newsletter --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/fastrepl/anarlog.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/product-update-newsletter .opencode/skills/product-update-newsletter && 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 "product-update-newsletter" agent skill from https://github.com/fastrepl/anarlog/tree/main/.claude/skills/product-update-newsletter into .opencode/skills/product-update-newsletter/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "product-update-newsletter", 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
product-update-newsletter- GitHub stars
- 9.5k
- Token cost
- ~141 tokens
- SKILL.md length
- 38 words
- Files
- 1
- Skills in repo
- 32
- Repo updated
- First seen
- Licence
- MIT
At a glance
Draft, update, or audit a crisp, changelog-grounded Anarlog product-update newsletter in Loops for a desktop release.
- Tasks that involve Newsletters
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Product Update Newsletter is an agent skill from fastrepl/anarlog. Draft, update, or audit a crisp, changelog-grounded Anarlog product-update newsletter in Loops for a desktop release.
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.
It sits in Writing & Content, covering Newsletters. The repository describes itself as: Open source Granola AI Alternative. The licence is MIT.
When your agent uses it
- Tasks that involve Newsletters
Example prompts
- “/product-update-newsletter”
What it can do on your machine
Read from SKILL.md and the folder at commit c516104. 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
Product Update Newsletter loads about 141 tokens when it runs. Until then it costs about 36 tokens; SKILL.md has 38 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 fastrepl/anarlog at commit c516104, republished under its MIT licence (© fastrepl). 38 words, ~141 tokens.
Download SKILL.mdSave it as
.claude/skills/product-update-newsletter/SKILL.md (or your agent's skills folder).- name
- product-update-newsletter
- description
- Draft, update, or audit a crisp, changelog-grounded Anarlog product-update newsletter in Loops for a desktop release.
- metadata.internal
- true
Product Update Newsletter
This is a compatibility entry for Claude-specific skill discovery. The canonical, universal instructions live at:
../../../.agents/skills/product-update-newsletter/SKILL.md
Read that file completely and follow it. Do not maintain a second newsletter
checklist here; changes belong in .agents/skills/product-update-newsletter/.
© fastrepl, 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 .claude/skills/product-update-newsletter of fastrepl/anarlog.
Open the folder on GitHubat commit c516104
Compare with similar skills
Product Update Newsletter 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 |
|---|---|---|---|---|---|---|
| Product Update Newsletter this skillfastrepl/anarlog | 9.5k | — | ~141 | Automated safety check: Pass | MIT | |
| Internal Communications Writeranthropics/skills | 180k | 38 repos | ~378 | Automated safety check: Pass | Apache-2.0 | |
| Clarityaddyosmani/clarity | 269 | 1 repos | ~1.9k | Automated safety check: Pass | MIT | |
| News Aggregator Skillcclank/news-aggregator-skill | 1.3k | — | ~2.1k | Automated safety check: Pass | None | |
| Changelog Social RecapFlorianBruniaux/claude-code-ultimate-guide | 6.1k | — | ~1.8k | Automated safety check: Notes | CC-BY-SA-4.0 | |
| Newsletter Voicecharlie947/social-media-skills | 3.8k | — | ~2.5k | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Product Update Newsletter
What does Product Update Newsletter do?
Draft, update, or audit a crisp, changelog-grounded Anarlog product-update newsletter in Loops for a desktop release. Product Update Newsletter is an agent skill from fastrepl/anarlog. Draft, update, or audit a crisp, changelog-grounded Anarlog product-update newsletter in Loops for a desktop release.
When should I use Product Update Newsletter?
Product Update Newsletter fits situations like: tasks that involve Newsletters.
How do I install Product Update Newsletter in Claude Code?
Run `npx skills add fastrepl/anarlog --skill product-update-newsletter -a claude-code`. Or copy the skill folder (.claude/skills/product-update-newsletter in fastrepl/anarlog) into .claude/skills/product-update-newsletter in your project. Claude Code loads it when a task matches its description.
How do I install Product Update Newsletter in Codex?
Run `npx skills add fastrepl/anarlog --skill product-update-newsletter -a codex`. Or copy the skill folder (.claude/skills/product-update-newsletter in fastrepl/anarlog) into .agents/skills/product-update-newsletter in your project. Codex loads it when a task matches its description.
Can I use Product Update Newsletter 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 fastrepl/anarlog --skill product-update-newsletter -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/product-update-newsletter, .gemini/skills/product-update-newsletter, .github/skills/product-update-newsletter and .opencode/skills/product-update-newsletter in your project.
What does Product Update Newsletter need to run?
SKILL.md names no scripts, command-line tools or credentials: Product Update Newsletter is instructions for the agent only.
Does Product Update Newsletter 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 Product Update Newsletter 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 Product Update Newsletter use?
Product Update Newsletter 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 Product Update Newsletter use?
About 141 tokens (SKILL.md is roughly 564 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 Product Update Newsletter?
Skills that share tags, products or a category with Product Update Newsletter: Internal Communications Writer (anthropics/skills, 180k stars), Clarity (addyosmani/clarity, 269 stars), News Aggregator Skill (cclank/news-aggregator-skill, 1.3k stars) and Changelog Social Recap (FlorianBruniaux/claude-code-ultimate-guide, 6.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Product Update Newsletter?
fastrepl (a GitHub organization) maintains it in fastrepl/anarlog, which has 9,469 GitHub stars. The repository holds 32 skills in this directory. The repository was last updated on October 10, 2026.
Source: fastrepl/anarlog on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.