retrieval-rag SKILL.md skillA
retrieval-rag from nahid-sparktales/agent-dispatcher is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nahid-sparktales/agent-dispatcher/retrieval-rag@git:20260919.a0d4f55Pins git:20260919.a0d4f55 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nahid-sparktales/agent-dispatcher
- Path
skills/ai/retrieval-rag/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260919.a0d4f55, committed Sep 19, 2026
- Size
- 7,096 bytes
- Repository stars
- 58
- License
- MIT
Build and fix retrieval that actually returns the right passage — structure-aware chunking, one pinned embedding model, lexical plus vector search fused, reranking, and a recall measurement that is run separately from the generator. Use when a RAG system answers wrong or vaguely, when an index is being designed or reindexed, or when someone proposes a prompt change to fix what is really a retrieval miss. Not for prompt or output-quality work once the right passage is already in context, not…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Retrieval for RAG Most "the model hallucinated" reports are retrieval failures wearing a generation costume. The gold passage was never in the context window, and no prompt edit can fix that. The first job is always to find out which half is broken. ## When this fires A system retrieves documents and feeds them to a model, and the answers are wrong, thin, or unsourced — or an index is being built or rebuilt. It does not fire when the correct passage is demonstrably in context and the model still answers badly; that is a generation problem. ## Procedure 1. **Split the failure before fixing anything.** Take 10 real failing questions. For each, check whether the passage that answers it appears in the retrieved set at all. Retrieved and answered wrong is a generation problem; never retrieved is a retrieval problem. Do not proceed on a guess — this one check redirects most of the work. 2. **Build the evaluation set before touching the index.** 30–50 real questions, each labelled with the id(s) of the passage that answers it. Get them from real logs where possible. Without this set every later change is a reshuffle you cannot tell from an improvement. …
Read the whole file at its exact version.
How to install
mdr add nahid-sparktales/agent-dispatcher/retrieval-rag@sha256:0f9790a151c040f1The line at the top of this page pins the label git:20260919.a0d4f55, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_3bwyh3ha3kssqwis)
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Versions
The registry has recorded 1 version of this file, committed on Sep 19, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (7096 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
nahid-sparktales/agent-dispatcher · 58 stars · license MIT · pushed 2026-10-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3bwyh3ha3kssqwis GET https://markdownregistry.com/api/v1/resolve?ref=nahid-sparktales/agent-dispatcher/retrieval-rag GET https://markdownregistry.com/api/v1/blob/0f9790a151c040f1a93523c19996129e6ffc15625cdbd1670df7bc6447bb7f57
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.