dataflow-operator-builder

dataflow-operator-builder is a skill for Claude Code from OpenDCAI/DataFlow-WebUI. It costs 66 tokens per session (2,078 once invoked), scanned A, original, Apache-2.0.

A generator for DataFlow operators: reusable data-processing components that can generate, filter, refine, or evaluate data. It also creates a command-line wrapper and tests for each operator.

In plain words
What is it for?
Use it to create or scaffold a new DataFlow operator from an interactive interview or a specification file, including registry, unit, smoke, and CLI-related files.
Why use it?
It removes the repetitive setup involved in registering an operator, connecting it to DataFlow storage, adding a CLI, and writing basic tests.

Skill for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_DATA} variable. Also seen: names the AskUserQuestion tool; mentions Codex.

Good fit Use it to create or scaffold a new DataFlow operator from an interactive interview or a specification file, including registry, unit, smoke, and CLI-related files.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/opendcai/dataflow-webui/dataflow-operator-builder
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add OpenDCAI/DataFlow-WebUI --skill dataflow-operator-builder
Clone the repo
git clone --depth 1 https://github.com/OpenDCAI/DataFlow-WebUI

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for dataflow-operator-builder

README.md
[![agentmods](https://agentmods.dev/badge/skills/opendcai/dataflow-webui/dataflow-operator-builder/github.svg)](https://agentmods.dev/skills/opendcai/dataflow-webui/dataflow-operator-builder)
Your own site
<a href="https://agentmods.dev/skills/opendcai/dataflow-webui/dataflow-operator-builder"><img src="https://agentmods.dev/badge/skills/opendcai/dataflow-webui/dataflow-operator-builder/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for dataflow-operator-builder

Your own site · 80×15
<a href="https://agentmods.dev/skills/opendcai/dataflow-webui/dataflow-operator-builder"><img src="https://agentmods.dev/badge/skills/opendcai/dataflow-webui/dataflow-operator-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,078 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Prompt Injection · line 12
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00066 $0.02078
Opus 5.5 $0.00026 $0.00831
Sonnet 5.5 $0.00013 $0.00416
Haiku 4.5 $0.00007 $0.00208

Measured 1mo ago against content hash 602980a26897, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dataflow-operator-builder scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/build_operator_artifacts.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/canonical/dataflow-operator-builder/SKILL.md · 267 lines

How it starts

The opening of the file, as written. The whole thing — 267 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DataFlow Operator Builder

Build production-ready DataFlow operator artifacts with either interactive interview mode or direct spec mode.

ZH: 通过“交互采访模式”或“直接 spec 模式”快速生成生产可用的 DataFlow Operator。

Usage

/dataflow-operator-builder
/dataflow-operator-builder --spec path/to/spec.json --output-root path/to/repo
/dataflow-operator-builder --dry-run --spec path/to/spec.json --output-root path/to/repo

Script Directory

Agent execution instructions:

  1. Resolve this SKILL.md directory as SKILL_DIR.
  2. Use ${SKILL_DIR}/scripts/build_operator_artifacts.py.

ZH:

  1. 将当前 SKILL.md 所在目录作为 SKILL_DIR。
  2. 使用 ${SKILL_DIR}/scripts/build_operator_artifacts.py。
Script Purpose
scripts/build_operator_artifacts.py Generate operator + CLI + tests from spec
scripts/example_spec.json Example input spec with defaults

Scope

This skill targets:

  • DataFlow-style operator implementation (DataFlowStorage + dataframe flow)
  • @OPERATOR_REGISTRY.register() registration
  • Separate CLI wrapper under cli/
  • Minimal but production-grade tests (unit/registry/smoke)

ZH:

  • 面向 DataFlow 风格的 operator 实现(DataFlowStorage + dataframe 流程)
  • 自动包含 @OPERATOR_REGISTRY.register() 注册
  • CLI 与 operator 逻辑分离
  • 生成最小但可用的测试骨架(unit/registry/smoke)

Default families:

  • generate
  • filter
  • refine
  • eval

Two Working Modes

Mode A: Interactive Interview Mode

Use AskUserQuestion in batch mode with exactly two rounds:

Use structured questioning in batch mode with exactly two rounds:

  • Round 1: structure fields
  • Round 2: implementation fields

Important:

  • In each question block, include recommended option + short reason.
  • Ask follow-up questions only when high-impact fields are missing or contradictory.
  • Do not ask one-by-one when the same round can be asked in one batch.
  • Present all questions of one round in a single message to the user, grouped by round.

Read the full file on GitHub · 267 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago First seen · 267 lines · 66 tokens per session scan A 602980a26897

Subscribe to this mod's changes

dataflow-operator-builder is a skill published in the GitHub repository OpenDCAI/DataFlow-WebUI (253 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 66 tokens to every session and 2,078 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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