Chdb Datastore
vemetric/vemetric
A skill your agent uses when the user has tabular data (pandas DataFrame, parquet, csv, Arrow, json) and wants to filter, group, aggregate, join, or speed up slow pandas.
Send IM messages to users in batch. An agent skill from Harryoung/efka.
Install Batch Notification
$ npx skills add Harryoung/efka --skill batch-notification -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Harryoung/efka batch-notification --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/Harryoung/efka.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/batch-notification .claude/skills/batch-notification && 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 "batch-notification" agent skill from https://github.com/Harryoung/efka/tree/main/skills/batch-notification into .claude/skills/batch-notification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "batch-notification", 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/Harryoung/efka/tree/main/skills/batch-notificationType 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 Harryoung/efka --skill batch-notification -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Harryoung/efka batch-notification --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Harryoung/efka.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/batch-notification .agents/skills/batch-notification && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "batch-notification" agent skill from https://github.com/Harryoung/efka/tree/main/skills/batch-notification into .agents/skills/batch-notification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "batch-notification", 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 Harryoung/efka --skill batch-notification -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Harryoung/efka batch-notification --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Harryoung/efka.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/batch-notification .cursor/skills/batch-notification && 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 "batch-notification" agent skill from https://github.com/Harryoung/efka/tree/main/skills/batch-notification into .cursor/skills/batch-notification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "batch-notification", 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/Harryoung/efka.git --path skills/batch-notification--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 Harryoung/efka --skill batch-notification -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Harryoung/efka batch-notification --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Harryoung/efka.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/batch-notification .gemini/skills/batch-notification && 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 "batch-notification" agent skill from https://github.com/Harryoung/efka/tree/main/skills/batch-notification into .gemini/skills/batch-notification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "batch-notification", 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 Harryoung/efka batch-notificationInstalls 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 Harryoung/efka --skill batch-notification -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Harryoung/efka.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/batch-notification .github/skills/batch-notification && 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 "batch-notification" agent skill from https://github.com/Harryoung/efka/tree/main/skills/batch-notification into .github/skills/batch-notification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "batch-notification", 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 Harryoung/efka --skill batch-notification -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Harryoung/efka batch-notification --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Harryoung/efka.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/batch-notification .opencode/skills/batch-notification && 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 "batch-notification" agent skill from https://github.com/Harryoung/efka/tree/main/skills/batch-notification into .opencode/skills/batch-notification/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "batch-notification", 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
batch-notification- GitHub stars
- 104
- Token cost
- ~512 tokens
- SKILL.md length
- 136 words
- Files
- 4
- Skills in repo
- 6
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Send IM messages to users in batch. An agent skill from Harryoung/efka.
- Works in 3 steps: Upload table + filter conditions: Notify… → Upload target list: Notify specified… → All-staff notification: Notify everyone
- Administrators request batch notifications
- SKILL.md covers Typical Scenarios, Quick Start, Detailed Workflow and pandas Query Patterns, plus 3 more sections
- Calls python3
What it does
Batch Notification is an agent skill from Harryoung/efka. Send IM messages to users in batch. Used for notifying specific user groups, sending after table filtering, all-staff notifications, etc. Use this Skill when administrators request batch notifications, mass messaging, or notifications after table filtering. Trigger words: notify/send/mass + users/batch/table.
Its SKILL.md is about 510 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files (for example `EXAMPLES.md`, `PANDAS_PATTERNS.md` and `WORKFLOW.md`).
It sits in Data & Analytics, covering DataFrames. It works with pandas. The repository describes itself as: AI-powered knowledge management without vector embeddings. Built upon Claude Agent SDK, File system based, Agent driven. Maybe slower, but results are much more reliable! The licence is Apache-2.0.
When your agent uses it
- Administrators request batch notifications
- Notifications after table filtering
- Words: notify/send/mass + users/batch/table
Example prompts
- “/batch-notification”
Requirements
- Python 3
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Upload table + filter conditions: Notify all users with benefits points greater than 0
- Upload target list: Notify specified user list
- All-staff notification: Notify everyone
What it can do on your machine
Read from SKILL.md and the folder at commit 9e6d3a4. 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:
python3
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
Batch Notification loads about 512 tokens when it runs. Until then it costs about 82 tokens; SKILL.md has 136 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 Harryoung/efka at commit 9e6d3a4, republished under its Apache-2.0 licence (© Harryoung). 136 words, ~512 tokens.
Download SKILL.mdSave it as
.claude/skills/batch-notification/SKILL.md (or your agent's skills folder). This skill also uses 3 other files; get the full folder from GitHub.- name
- batch-notification
- description
- Send IM messages to users in batch. Used for notifying specific user groups, sending after table filtering, all-staff notifications, etc. Use this Skill when administrators request batch notifications, mass messaging, or notifications after table filtering. Trigger words: notify/send/mass + users/batch/table.
Batch User Notification
Support administrators to send IM notification messages to users in batch.
Typical Scenarios
- Upload table + filter conditions: Notify all users with benefits points greater than 0
- Upload target list: Notify specified user list
- All-staff notification: Notify everyone
Quick Start
All-staff Notification
mcp__{channel}__send_markdown_message(
touser="@all",
content="## Notification Title\n\nNotification content..."
)Filtered Notification
python3 -c "
import pandas as pd
mapping = pd.read_excel('knowledge_base/企业管理/人力资源/user_mapping.xlsx')
business = pd.read_excel('/tmp/data.xlsx')
filtered = business[business['积分'] > 0]
result = pd.merge(filtered, mapping, on='工号', how='inner')
print('|'.join(result['企业微信用户ID'].tolist()))
"Detailed Workflow
Complete 5-stage workflow, see WORKFLOW.md
pandas Query Patterns
Common filtering, JOIN, date processing patterns, see PANDAS_PATTERNS.md
Example Scenarios
Complete end-to-end examples, see EXAMPLES.md
Core Principles
- Privacy protection: Notifications are one-on-one private chats, messages must not contain other people's information
- Must confirm: Must wait for administrator reply "confirm send" after constructing message
- Python first: All table processing uses pandas
- Result transparency: Clearly report sending results (success/failure counts)
Available Tools
- Bash: Execute pandas scripts
- mcp__{channel}__send_markdown_message: Send Markdown messages
- mcp__{channel}__send_text_message: Send plain text messages
© Harryoung, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 3 other files in skills/batch-notification of Harryoung/efka.
- SKILL.md
- EXAMPLES.md
- PANDAS_PATTERNS.md
- WORKFLOW.md
Open the folder on GitHubat commit 9e6d3a4
Compare with similar skills
Batch Notification 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 |
|---|---|---|---|---|---|---|
| Batch Notification this skillHarryoung/efka | 104 | — | ~512 | Automated safety check: Pass | Apache-2.0 | |
| Chdb Datastorevemetric/vemetric | 394 | 2 repos | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| CSV Data Summarizercoffeefuelbump/csv-data-summarizer-claude-skill | 468 | 2 repos | ~1.4k | Automated safety check: Pass | None | |
| Python Executorcortega26/chile-hub | 113 | 2 repos | ~1.5k | Automated safety check: Pass | MIT | |
| Retentioneering Product Analyticsretentioneering/retentioneering-tools | 920 | — | ~1.6k | Automated safety check: Pass | Apache-2.0 | |
| Pandas ProJeffallan/claude-skills | 12k | 1 repos | ~1.5k | Automated safety check: Pass | MIT |
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Related
Works with
Categories
Questions about Batch Notification
What does Batch Notification do?
Send IM messages to users in batch. An agent skill from Harryoung/efka. Batch Notification is an agent skill from Harryoung/efka. Send IM messages to users in batch.
When should I use Batch Notification?
Batch Notification fits situations like: administrators request batch notifications; notifications after table filtering; words: notify/send/mass + users/batch/table.
How do I install Batch Notification in Claude Code?
Run `npx skills add Harryoung/efka --skill batch-notification -a claude-code`. Or copy the skill folder (skills/batch-notification in Harryoung/efka) into .claude/skills/batch-notification in your project. Claude Code loads it when a task matches its description.
How do I install Batch Notification in Codex?
Run `npx skills add Harryoung/efka --skill batch-notification -a codex`. Or copy the skill folder (skills/batch-notification in Harryoung/efka) into .agents/skills/batch-notification in your project. Codex loads it when a task matches its description.
Can I use Batch Notification 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 Harryoung/efka --skill batch-notification -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/batch-notification, .gemini/skills/batch-notification, .github/skills/batch-notification and .opencode/skills/batch-notification in your project.
What does Batch Notification need to run?
Going by SKILL.md and its folder, Batch Notification needs the command-line tools its instructions call (python3). Our summary lists: Python 3.
Does Batch Notification 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 Batch Notification 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 Batch Notification use?
Batch Notification is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Batch Notification use?
About 512 tokens (SKILL.md is roughly 2k 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 Batch Notification?
Skills that share tags, products or a category with Batch Notification: Chdb Datastore (vemetric/vemetric, 394 stars), CSV Data Summarizer (coffeefuelbump/csv-data-summarizer-claude-skill, 468 stars), Python Executor (cortega26/chile-hub, 113 stars) and Retentioneering Product Analytics (retentioneering/retentioneering-tools, 920 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Batch Notification?
Harryoung (a GitHub user) maintains it in Harryoung/efka, which has 104 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on March 16, 2026.
Source: Harryoung/efka on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.