pairag-knowledge

Research

Search a PAI-RAG knowledge base and fetch source files from the command line. Use when the user asks to look something up in the knowledge base, search docs/RAG, find where something is documented, retrieve a passage with a citation, or read a knowledge-base file. Triggers — knowledge base, retrieval, RAG, "search the docs", "look it up in the KB", PAI-RAG.

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How to use this skill

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Source SKILL.md: https://github.com/aigc-apps/PAI-RAG/blob/HEAD/skills/pairag-knowledge/SKILL.md

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PAI-RAG Knowledge Base

Read-only command-line access to a running PAI-RAG service. Use it to find and cite knowledge-base content. All commands print compact markdown; add --json for raw output.

Run via: python <skill-dir>/pairag.py <command> [...] (Python 3, no dependencies).

Shorter commands. Each command also has a wrapper next to pairag.py, so once the skill dir is on your PATH you can drop the python pairag.py prefix:

Wrapper	Equivalent to
`kb_list`	`pairag.py kbs`
`kb_search`	`pairag.py search`
`kb_catalog`	`pairag.py catalog`
`kb_read`	`pairag.py read`
`kb_grep`	`pairag.py grep`

export PATH="<skill-dir>:$PATH"     # once per shell (or add to your shell rc)
kb_search "how to configure the vector store" --kb docs

Which command

search <query> — semantic / hybrid retrieval. Use for meaning-based questions ("how do I configure the vector store?"). Returns ranked passages, each with a doc_id.
catalog — list files in the knowledge base: file name, title, and source (no body reads). Use to see what's in the KB. --query <text> filters by name and title; --limit N caps the count.
grep <pattern> — literal keyword search over file bodies, with line numbers and context. Use for exact strings (an error message, a config key).
read <id> — fetch a file's full text. Pass the file_id (or doc_id) from any search / catalog / grep result. Supports --max-chars and --offset for paging large files.
kbs [query] — list available knowledge bases (id, name, description).

Coverage: catalog lists every file in the KB (any status). search and grep cover all indexed content — a file that is still parsing, failed to parse, or otherwise has no chunks yet will not appear in their results. So an empty search/grep result does not by itself mean a file is absent; check catalog to confirm whether the file exists.

Targeting a knowledge base

Every command except kbs needs a KB. Pass --kb <name-or-id>, or set a default once with PAIRAG_KB. Names are resolved to ids automatically; a 32-char hex value is treated as an id directly. If you don't know the KB, run kbs first.

Configuration

Resolution order: flags → environment → defaults. Set the env vars once (shell rc, or the container's environment:) and you can drop the flags entirely.

Setting	Flag	Env	Default
Base URL	`--base-url`	`PAIRAG_BASE_URL`	`http://localhost:8682`
Tenant	`--tenant`	`PAIRAG_TENANT_ID`	(unset)
Default KB	`--kb`	`PAIRAG_KB`	(unset)
Auth token	`--token`	`PAIRAG_TOKEN`	(unset)

Examples

# Discover knowledge bases
kb_list        

# Semantic search in the "docs" KB
kb_search "how to configure the vector store" --kb docs

# Browse the catalog, then read a document by its id
kb_catalog --query install --kb docs

# Read doc from "docs" KB 
kb_read d1f2... --kb docs

# Exact-string search with more context, as JSON
kb_grep "timeout = 600" --kb docs --context 3 --json

Citing results

Each result carries a doc_id (and read also shows file_id). When you relay an answer to the user, cite the source document/file the passage came from, and use read to pull the full text when you need more than the snippet.

Notes

The PAI-RAG server must be running. If a command reports it can't reach the server, confirm the service is up and PAIRAG_BASE_URL points at it.
This skill is read-only: it never creates, edits, uploads, or deletes anything.