Git Command Class Implementation
ruby-git/ruby-git
Scaffolds and reviews `Git::Commands::*` classes in the ruby-git library, with unit tests, integration tests and YARD docs, using the Base command architecture.
A skill your agent uses whenever writing or reviewing a code comment anywhere in this repo (lib, ext, spec, sig, docs, CI config, etc.) – e.g.
Install Write Comment
$ npx skills add DataDog/dd-trace-rb --skill write-comment -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install DataDog/dd-trace-rb write-comment --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/DataDog/dd-trace-rb.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/write-comment .claude/skills/write-comment && 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 "write-comment" agent skill from https://github.com/DataDog/dd-trace-rb/tree/master/.agents/skills/write-comment into .claude/skills/write-comment/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-comment", 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/DataDog/dd-trace-rb/tree/master/.agents/skills/write-commentType 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 DataDog/dd-trace-rb --skill write-comment -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install DataDog/dd-trace-rb write-comment --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/DataDog/dd-trace-rb.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/write-comment .agents/skills/write-comment && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "write-comment" agent skill from https://github.com/DataDog/dd-trace-rb/tree/master/.agents/skills/write-comment into .agents/skills/write-comment/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-comment", 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 DataDog/dd-trace-rb --skill write-comment -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install DataDog/dd-trace-rb write-comment --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/DataDog/dd-trace-rb.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/write-comment .cursor/skills/write-comment && 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 "write-comment" agent skill from https://github.com/DataDog/dd-trace-rb/tree/master/.agents/skills/write-comment into .cursor/skills/write-comment/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-comment", 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/DataDog/dd-trace-rb.git --path .agents/skills/write-comment--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 DataDog/dd-trace-rb --skill write-comment -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install DataDog/dd-trace-rb write-comment --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/DataDog/dd-trace-rb.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/write-comment .gemini/skills/write-comment && 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 "write-comment" agent skill from https://github.com/DataDog/dd-trace-rb/tree/master/.agents/skills/write-comment into .gemini/skills/write-comment/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-comment", 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 DataDog/dd-trace-rb write-commentInstalls 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 DataDog/dd-trace-rb --skill write-comment -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/DataDog/dd-trace-rb.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/write-comment .github/skills/write-comment && 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 "write-comment" agent skill from https://github.com/DataDog/dd-trace-rb/tree/master/.agents/skills/write-comment into .github/skills/write-comment/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-comment", 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 DataDog/dd-trace-rb --skill write-comment -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install DataDog/dd-trace-rb write-comment --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/DataDog/dd-trace-rb.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/write-comment .opencode/skills/write-comment && 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 "write-comment" agent skill from https://github.com/DataDog/dd-trace-rb/tree/master/.agents/skills/write-comment into .opencode/skills/write-comment/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "write-comment", 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
write-comment- GitHub stars
- 417
- Token cost
- ~1.4k tokens
- SKILL.md length
- 534 words
- Files
- 1
- Skills in repo
- 3
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
A skill your agent uses whenever writing or reviewing a code comment anywhere in this repo (lib, ext, spec, sig, docs, CI config, etc.) – e.g.
- Reviewing a code comment anywhere in this repo (lib
- SKILL.md covers Code comments, Removing existing comments and Style
- Reaches en.wikipedia.org
- Tasks that involve Technical documentation
What it does
Write Comment is an agent skill from DataDog/dd-trace-rb, published by the product's own GitHub organization. Use whenever writing or reviewing a code comment anywhere in this repo (lib, ext, spec, sig, docs, CI config, etc.) – e.g. "add a comment", "explain this in a comment", "is this comment worth keeping". Enforces dd-trace-rb comment-noise conventions.
Its SKILL.md is about 1.4k 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 Development, covering Technical documentation. It works with Datadog and Ruby. The repository describes itself as: Datadog's client library for Ruby.
When your agent uses it
- Reviewing a code comment anywhere in this repo (lib
- Tasks that involve Technical documentation
Example prompts
- “add a comment”
- “explain this in a comment”
- “is this comment worth keeping”
- “/write-comment”
What it can do on your machine
Read from SKILL.md and the folder at commit 8a3b01c. 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 (its code samples are ruby and c).
From the folder's file list and the shell code blocks in SKILL.md.
Network
Hosts in commands or code, which the agent is likely to contact:
en.wikipedia.org
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
Write Comment loads about 1.4k tokens when it runs. Until then it costs about 66 tokens; SKILL.md has 534 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 534 words (~1,414 tokens).
“Default to no comment: a comment must earn its place by saying something the code cannot.”
- name
- write-comment
Files
Just SKILL.md in .agents/skills/write-comment of DataDog/dd-trace-rb.
Open the folder on GitHubat commit 8a3b01c
Compare with similar skills
Write Comment 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 |
|---|---|---|---|---|---|---|
| Write Comment this skillDataDog/dd-trace-rb | 417 | — | ~1.4k | Automated safety check: Pass | Custom licence | |
| Git Command Class Implementationruby-git/ruby-git | 1.8k | — | ~3k | Automated safety check: Pass | MIT | |
| Clarify Java CommentsDataDog/dd-trace-java | 736 | — | ~2.3k | Automated safety check: Notes | Apache-2.0 | |
| Git::Repository Facade Methodsruby-git/ruby-git | 1.8k | — | ~3.4k | Automated safety check: Pass | MIT | |
| Facade YARD Documentation Rulesruby-git/ruby-git | 1.8k | — | ~5k | Automated safety check: Pass | MIT | |
| Readmeaiskillstore/marketplace | 430 | 5 repos | ~4.9k | Automated safety check: Notes | None |
Similar skills
- Official
Clarify Java Comments
DataDog/dd-trace-java
Clarify or review Java Javadocs, Javadoc tags, and explanatory code comments for legibility, accuracy, and source alignment.
Git::Repository Facade Methods
ruby-git/ruby-git
Scaffolds and reviews facade methods on Git::Repository in ruby-git, with unit tests, integration tests and YARD documentation.
Facade YARD Documentation Rules
ruby-git/ruby-git
Sets facade-specific YARD documentation rules for the Git::Repository public API, layered on the gem's general YARD skill.
Readme
aiskillstore/marketplace
When the user wants to create or update a README.md file for a project.
Readme Refresh
joshukraine/dotfiles
Audit and update a project README, or bootstrap a new one. An agent skill from joshukraine/dotfiles.
More from DataDog/dd-trace-rb
- Official
Write Rbs
DataDog/dd-trace-rb
A skill your agent uses when writing, reviewing, or modifying RBS type signatures (sig//.rbs, vendor/rbs//.rbs, or inline : annotations) or running Steep – e.g.
- Official
Write Changelog
DataDog/dd-trace-rb
A skill your agent uses when a change in this repo needs a customer-facing changelog entry — e.g.
Related
Categories
Questions about Write Comment
What does Write Comment do?
A skill your agent uses whenever writing or reviewing a code comment anywhere in this repo (lib, ext, spec, sig, docs, CI config, etc.) – e.g. Write Comment is an agent skill from DataDog/dd-trace-rb, published by the product's own GitHub organization.g.
When should I use Write Comment?
Write Comment fits situations like: reviewing a code comment anywhere in this repo (lib; tasks that involve Technical documentation.
How do I install Write Comment in Claude Code?
Run `npx skills add DataDog/dd-trace-rb --skill write-comment -a claude-code`. Or copy the skill folder (.agents/skills/write-comment in DataDog/dd-trace-rb) into .claude/skills/write-comment in your project. Claude Code loads it when a task matches its description.
How do I install Write Comment in Codex?
Run `npx skills add DataDog/dd-trace-rb --skill write-comment -a codex`. Or copy the skill folder (.agents/skills/write-comment in DataDog/dd-trace-rb) into .agents/skills/write-comment in your project. Codex loads it when a task matches its description.
Can I use Write Comment 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 DataDog/dd-trace-rb --skill write-comment -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/write-comment, .gemini/skills/write-comment, .github/skills/write-comment and .opencode/skills/write-comment in your project.
What does Write Comment need to run?
SKILL.md names no scripts, command-line tools or credentials: Write Comment is instructions for the agent only.
Does Write Comment access the network?
SKILL.md names 1 domain. In commands or code: en.wikipedia.org; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.
Is Write Comment 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 Write Comment use?
Write Comment has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Write Comment use?
About 1.4k tokens (SKILL.md is roughly 5.7k 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 Write Comment?
Skills that share tags, products or a category with Write Comment: Git Command Class Implementation (ruby-git/ruby-git, 1.8k stars), Clarify Java Comments (DataDog/dd-trace-java, 736 stars), Git::Repository Facade Methods (ruby-git/ruby-git, 1.8k stars) and Facade YARD Documentation Rules (ruby-git/ruby-git, 1.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Write Comment?
DataDog (a GitHub organization, an official publisher) maintains it in DataDog/dd-trace-rb, which has 417 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on October 7, 2026.
Source: DataDog/dd-trace-rb on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.