llamaindex

llamaindex is a skill for Claude Code, Codex from G1Joshi/Agent-Skills. It costs 20 tokens per session (319 once invoked), scanned A, original, MIT.

A framework for connecting language models to private or structured data such as documents, PDFs, databases, and Pandas tables. It supports retrieval-based applications, in which relevant information is found before the model writes an answer.

In plain words
What is it for?
Use it to build document question-answering systems, chat with PDFs or databases, query tables in natural language, and create research agents.
Why use it?
It helps prevent a language model from relying only on its general training when answering questions about your data. It provides building blocks for retrieving information, querying structured sources, and coordinating multi-step workflows.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to build document question-answering systems, chat with PDFs or databases, query tables in natural language, and create research agents.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/g1joshi/agent-skills/llamaindex
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 G1Joshi/Agent-Skills --skill llamaindex
Clone the repo
git clone --depth 1 https://github.com/G1Joshi/Agent-Skills

Made for: Claude Code, Codex.

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 llamaindex

README.md
[![agentmods](https://agentmods.dev/badge/skills/g1joshi/agent-skills/llamaindex/github.svg)](https://agentmods.dev/skills/g1joshi/agent-skills/llamaindex)
Your own site
<a href="https://agentmods.dev/skills/g1joshi/agent-skills/llamaindex"><img src="https://agentmods.dev/badge/skills/g1joshi/agent-skills/llamaindex/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 llamaindex

Your own site · 80×15
<a href="https://agentmods.dev/skills/g1joshi/agent-skills/llamaindex"><img src="https://agentmods.dev/badge/skills/g1joshi/agent-skills/llamaindex.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 319 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.
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 $0.00020 $0.00319
Opus 5 $0.00010 $0.00160
Sonnet 5 $0.00004 $0.00064
Haiku 4.5 $0.00002 $0.00032

Measured 10d ago against content hash cfa13d147aac, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

llamaindex 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 10d 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/ai-ml/llamaindex/SKILL.md · 45 lines

What it actually says

LlamaIndex

LlamaIndex (formerly GPT Index) connects LLMs to your data. 2025 introduces Workflows, an event-driven way to build complex RAG pipelines.

When to Use

  • RAG (Retrieval Augmented Generation): Indexing PDFs, Docs, SQL to chat with them.
  • Structured Data: Querying SQL/Pandas with natural language (NLSQL).
  • Agents: Building research agents that browse the web and summarize.

Core Concepts

Workflows

Event-driven architecture for agents. Replace DAGs with event listeners (@step).

Query Engine

High-level API (index.as_query_engine()) to ask questions.

Data Loaders (LlamaHub)

Connectors for Notion, Slack, Discord, PDF, etc.

Best Practices (2025)

Do:

  • Use Workflows: They are harder to learn but easier to debug than monolithic engines.
  • Use Hybrid Search: BM25 (Keyword) + Vector Search for best retrieval accuracy.
  • Use Rerankers: Always rerank retrieved nodes (Cohere/BGE) before sending to LLM.

Don't:

  • Don't dump raw text: Use "Node Parsers" to chunk data intelligently (Markdown, Semantic).

References

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. 10d ago First seen · 45 lines · 20 tokens per session scan A cfa13d147aac

Subscribe to this mod's changes

llamaindex is a skill published in the GitHub repository G1Joshi/Agent-Skills (12 stars, last pushed 7mo ago), licensed MIT. It adds 20 tokens to every session and 319 once invoked, about $0.0001 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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