Sequential RAG Skill

Use this Skill only after the Manage stage selects it. This Skill defines process order and Component selection guidance; it does not implement rewriting, retrieval, reranking, or generation.

Component selection

1. Optionally select one rewriter Component when query-document wording mismatch is likely.
2. Select exactly one retriever Component.
3. When selecting the HyDE Rewriter, select a semantic Vector Retriever and do not use the hypothetical document as a BM25-only query.
4. Optionally select one reranker Component when first-stage ranking is noisy.
5. Select exactly one generator Component.
6. Load only the selected Component Skill bodies and implementations.

Prefer BM25 without a Rewriter for exact names, identifiers, and strong lexical anchors.

Prefer Vector Retrieval without a Rewriter for ordinary paraphrases and semantic matching.

Prefer the single-sample HyDE Rewriter (N=1) followed by Vector Retrieval when the original query is short, abstract, or phrased differently from relevant corpus documents.

Query handling

• Send the original query to the optional Rewriter.
• Send the single rewritten_query to the Retriever when the HyDE Rewriter is selected.
• Send the original query to the Reranker and Generator.
• Never add a hypothetical HyDE document to the retrieved evidence.

Workflow

Execute scripts/workflow.py:run after every required slot is bound:

RAGRequest
  -> optional rewriter
  -> retriever
  -> optional reranker
  -> generator
  -> RAGResult

The workflow script may call slots through components, but it must never import a concrete Component implementation.