Antipattern Prevention
doorkeeper-gem/doorkeeper
Avoid common Ruby and Rails antipatterns that degrade maintainability and performance.
Add or backfill RubyEvents conference data for an event from its website — involvements (organizers/MCs), sponsors, venue + hotels, schedule, talk running order, and speaker GitHub/Twitter handles.
Install Backfill Event Data
$ npx skills add rubyevents/rubyevents --skill backfill-event-data -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rubyevents/rubyevents backfill-event-data --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/rubyevents/rubyevents.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/backfill-event-data .claude/skills/backfill-event-data && 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 "backfill-event-data" agent skill from https://github.com/rubyevents/rubyevents/tree/main/.agents/skills/backfill-event-data into .claude/skills/backfill-event-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "backfill-event-data", 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/rubyevents/rubyevents/tree/main/.agents/skills/backfill-event-dataType 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 rubyevents/rubyevents --skill backfill-event-data -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rubyevents/rubyevents backfill-event-data --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rubyevents/rubyevents.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/backfill-event-data .agents/skills/backfill-event-data && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "backfill-event-data" agent skill from https://github.com/rubyevents/rubyevents/tree/main/.agents/skills/backfill-event-data into .agents/skills/backfill-event-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "backfill-event-data", 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 rubyevents/rubyevents --skill backfill-event-data -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rubyevents/rubyevents backfill-event-data --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rubyevents/rubyevents.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/backfill-event-data .cursor/skills/backfill-event-data && 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 "backfill-event-data" agent skill from https://github.com/rubyevents/rubyevents/tree/main/.agents/skills/backfill-event-data into .cursor/skills/backfill-event-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "backfill-event-data", 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/rubyevents/rubyevents.git --path .agents/skills/backfill-event-data--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 rubyevents/rubyevents --skill backfill-event-data -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rubyevents/rubyevents backfill-event-data --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rubyevents/rubyevents.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/backfill-event-data .gemini/skills/backfill-event-data && 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 "backfill-event-data" agent skill from https://github.com/rubyevents/rubyevents/tree/main/.agents/skills/backfill-event-data into .gemini/skills/backfill-event-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "backfill-event-data", 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 rubyevents/rubyevents backfill-event-dataInstalls 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 rubyevents/rubyevents --skill backfill-event-data -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/rubyevents/rubyevents.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/backfill-event-data .github/skills/backfill-event-data && 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 "backfill-event-data" agent skill from https://github.com/rubyevents/rubyevents/tree/main/.agents/skills/backfill-event-data into .github/skills/backfill-event-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "backfill-event-data", 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 rubyevents/rubyevents --skill backfill-event-data -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install rubyevents/rubyevents backfill-event-data --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rubyevents/rubyevents.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/backfill-event-data .opencode/skills/backfill-event-data && 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 "backfill-event-data" agent skill from https://github.com/rubyevents/rubyevents/tree/main/.agents/skills/backfill-event-data into .opencode/skills/backfill-event-data/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "backfill-event-data", 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
backfill-event-data- GitHub stars
- 569
- Token cost
- ~2.8k tokens
- SKILL.md length
- 1,283 words
- Files
- 1
- Skills in repo
- 4
- Repo updated
- First seen
- Licence
- None found
At a glance
Add or backfill RubyEvents conference data for an event from its website — involvements (organizers/MCs), sponsors, venue + hotels, schedule, talk running order, and speaker GitHub/Twitter handles.
- Works in 4 steps: Never Write/Edit a file under data/. A… → Never YAML.load_file / YAML.dump /… → Never edit lib/schemas/*.json —… → …
- Editing files under data/{series}/{event}/ (involvements.yml
- SKILL.md covers Hard rules (enforced by hooks…, Data layout, Tooling and Recipes, plus 1 more section
- Calls rails, bundle and npx
What it does
Backfill Event Data is an agent skill from rubyevents/rubyevents. Add or backfill RubyEvents conference data for an event from its website — involvements (organizers/MCs), sponsors, venue + hotels, schedule, talk running order, and speaker GitHub/Twitter handles. Use whenever editing files under data/{series}/{event}/ (involvements.yml, sponsors.yml, venue.yml, schedule.yml, videos.yml) or reconciling speaker social handles in data/speakers.yml.
Its SKILL.md is about 2.8k 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 Backend & APIs, covering Backend development. It works with GitHub, X (Twitter) and Ruby. The repository describes itself as: On a mission to index all Ruby events.
When your agent uses it
- Editing files under data/{series}/{event}/ (involvements.yml
- Reconciling speaker social handles in data/speakers.yml
Example prompts
- “/backfill-event-data”
Requirements
- Node.js
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Never Write/Edit a file under data/. A PreToolUse hook blocks it. Create and edit data files with the generators (bin/rails g …) and yerba…
- Never YAML.load_file / YAML.dump / .to_yaml in a Bash/runner command — a hook blocks it. Read data with Yerba.parse_file, write with…
- Never edit lib/schemas/*.json — auto-generated. Edit app/schemas/*.rb then bin/rails schema:export.
- Finish every change with bundle exec yerba check (this is what CI runs). Don't commit unless asked.
What it can do on your machine
Read from SKILL.md and the folder at commit 29dd175. 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
Shell commands in SKILL.md call:
railsbundlenpxgit
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npx and git, which can reach the network depending on how they are called.
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
Backfill Event Data loads about 2.8k tokens when it runs. Until then it costs about 101 tokens; SKILL.md has 1,283 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 1,283 words (~2,811 tokens).
“How to add/fix event data in this repo the way it actually works. Field-level doc live in docs/ADDING_*.md (INVOLVEMENTS, SPONSORS, VENUES, SCHEDULES, VIDEOS, …) an schemas in app/schemas/*.rb — read those for field lists. This skill is th operating procedure…”
- name
- backfill-event-data
Files
Just SKILL.md in .agents/skills/backfill-event-data of rubyevents/rubyevents.
Open the folder on GitHubat commit 29dd175
Compare with similar skills
Backfill Event Data 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 |
|---|---|---|---|---|---|---|
| Backfill Event Data this skillrubyevents/rubyevents | 569 | — | ~2.8k | Automated safety check: Pass | None | |
| Antipattern Preventiondoorkeeper-gem/doorkeeper | 5.5k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Andrej Karpathy Perspectivenazarli-shabnam/clevis | 170 | 3 repos | ~3.8k | Automated safety check: Pass | MIT | |
| Socialite Developmenthexlet-volunteers/hexlet-sicp | 114 | 5 repos | ~1.2k | Automated safety check: Pass | MIT | |
| Readme Generator Probeizhi23/README-Generator-Pro | 113 | — | ~472 | Automated safety check: Notes | None | |
| Gh Release Jar Libexception-coder/npe_get_jobs | 176 | — | ~902 | Automated safety check: Pass | Custom licence |
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Related
Works with
Categories
Questions about Backfill Event Data
What does Backfill Event Data do?
Add or backfill RubyEvents conference data for an event from its website — involvements (organizers/MCs), sponsors, venue + hotels, schedule, talk running order, and speaker GitHub/Twitter handles. Backfill Event Data is an agent skill from rubyevents/rubyevents. Add or backfill RubyEvents conference data for an event from its website — involvements (organizers/MCs), sponsors, venue + hotels, schedule, talk running order, and speaker GitHub/Twitter handles.
When should I use Backfill Event Data?
Backfill Event Data fits situations like: editing files under data/{series}/{event}/ (involvements.yml; reconciling speaker social handles in data/speakers.yml.
How do I install Backfill Event Data in Claude Code?
Run `npx skills add rubyevents/rubyevents --skill backfill-event-data -a claude-code`. Or copy the skill folder (.agents/skills/backfill-event-data in rubyevents/rubyevents) into .claude/skills/backfill-event-data in your project. Claude Code loads it when a task matches its description.
How do I install Backfill Event Data in Codex?
Run `npx skills add rubyevents/rubyevents --skill backfill-event-data -a codex`. Or copy the skill folder (.agents/skills/backfill-event-data in rubyevents/rubyevents) into .agents/skills/backfill-event-data in your project. Codex loads it when a task matches its description.
Can I use Backfill Event Data 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 rubyevents/rubyevents --skill backfill-event-data -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/backfill-event-data, .gemini/skills/backfill-event-data, .github/skills/backfill-event-data and .opencode/skills/backfill-event-data in your project.
What does Backfill Event Data need to run?
Going by SKILL.md and its folder, Backfill Event Data needs the command-line tools its instructions call (rails, bundle, npx and git). Our summary lists: Node.js.
Does Backfill Event Data access the network?
SKILL.md contains no URLs. Its commands use npx and git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Backfill Event Data 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 Backfill Event Data use?
No licence was found for Backfill Event Data or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Backfill Event Data use?
About 2.8k tokens (SKILL.md is roughly 11k 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 Backfill Event Data?
Skills that share tags, products or a category with Backfill Event Data: Antipattern Prevention (doorkeeper-gem/doorkeeper, 5.5k stars), Andrej Karpathy Perspective (nazarli-shabnam/clevis, 170 stars), Socialite Development (hexlet-volunteers/hexlet-sicp, 114 stars) and Readme Generator Pro (beizhi23/README-Generator-Pro, 113 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Backfill Event Data?
rubyevents (a GitHub organization) maintains it in rubyevents/rubyevents, which has 569 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on October 7, 2026.
Source: rubyevents/rubyevents on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.