embedding-generator

A tool that turns text into embedding vectors: lists of numbers that represent the meaning of the text. The vectors are stored in a data table for later comparison or retrieval.

In plain words
What is it for?
Use it for semantic search, finding related documents, grouping similar text, and other vector-based data processing.
Why use it?
It prepares text for systems that find similar content by meaning instead of matching exact words.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/opendcai/dataflow-webui/embedding-generator
Any agent
npx skills add OpenDCAI/DataFlow-WebUI --skill embedding-generator
Clone the repo
git clone --depth 1 https://github.com/OpenDCAI/DataFlow-WebUI

Made for: Claude Code, Codex.

Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,283 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00056 $0.01283
Opus 5 $0.00028 $0.00642
Sonnet 5 $0.00011 $0.00257
Haiku 4.5 $0.00006 $0.00128

Measured 3d ago against content hash 8fe6d2d04a59, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

embedding-generator 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 3d ago.

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/core_text/generate/embedding-generator/SKILL.md · 196 lines

How it starts

The opening of the file, as written. The whole thing — 196 lines — stays where its author put it; the contents beside it link to each section on GitHub.

EmbeddingGenerator Operator Reference

EmbeddingGenerator reads one text column from the current dataframe, sends the full column as a batch into an embedding service, writes the returned vectors into output_key, persists the dataframe, and returns [output_key].

1. Imports

from dataflow.operators.core_text import EmbeddingGenerator
from dataflow.serving import APILLMServing_request
from dataflow.serving import LocalEmbeddingServing
from dataflow.serving import LiteLLMServing
from dataflow.serving import LocalModelLLMServing_vllm

2. Embedding Serving Options

Option A: Remote API with APILLMServing_request

APILLMServing_request(
    api_url="https://api.openai.com/v1/embeddings",
    key_name_of_api_key="DF_API_KEY",
    model_name="text-embedding-3-small",
    max_workers=20,
)

This works because APILLMServing_request implements:

generate_embedding_from_input(texts)

Option B: Local embedding model with LocalEmbeddingServing

LocalEmbeddingServing(
    model_name="all-MiniLM-L6-v2",
    device=None,
    max_workers=2,
)

Requires:

pip install "open-dataflow[vectorsql]"

Option C: Provider-agnostic API via LiteLLMServing

LiteLLMServing(
    serving_type="embedding",
    model_name="text-embedding-3-small",
    key_name_of_api_key="DF_API_KEY",
    max_workers=10,
)

This is suitable when you want to route embedding requests through LiteLLM.

Option D: Local vLLM backend with LocalModelLLMServing_vllm

LocalModelLLMServing_vllm(
    hf_model_name_or_path="your-embedding-capable-model",
    vllm_tensor_parallel_size=1,
)

This works only if the selected vLLM model/backend supports embedding through llm.embed(...).

Practical List of Supported Serving Examples

The following classes in dataflow.serving currently expose generate_embedding_from_input(...) and are practical candidates for EmbeddingGenerator:

  • APILLMServing_request
  • LocalEmbeddingServing
  • LiteLLMServing
  • LocalModelLLMServing_vllm

Read the full file on GitHub · 196 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 196 lines · 56 tokens per session scan A 8fe6d2d04a59

Subscribe to this mod's changes

embedding-generator is a skill published in the GitHub repository OpenDCAI/DataFlow-WebUI (224 stars, last pushed 7d ago), licensed Apache-2.0. It adds 56 tokens to every session and 1,283 once invoked, about $0.0003 per session on Opus 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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