# Tiangong Kb Textbook Search

> Search Tiangong knowledge-base textbook sources through the Tiangong AI CLI. Use for textbook-style explanations and reference material only. This skill searches only the textbook source, not course or edu.

- Skill: `tiangong-ai/tiangong-kb-textbook-search-2` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add tiangong-ai/tiangong-kb-textbook-search-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tiangong-ai/tiangong-kb-textbook-search-2/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: tiangong-ai (https://skillmd.com/u/tiangong-ai)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/tiangong-ai/tiangong-kb-textbook-search-2

---


# Tiangong KB Textbook Search

Use this skill for Tiangong textbook-source retrieval. It is intentionally
single-source: always search `textbook`, never `all`, `course`, or `edu`.

## Prerequisites

- The wrapper defaults to the exact reviewed entrypoint
  `npx --yes --package "@tiangong-ai/cli@0.0.62" -- tiangong-ai`; users do not need a
  preinstalled CLI. Set `TIANGONG_AI_CLI` or `TIANGONG_AI_CLI_BIN` only to
  override the CLI entrypoint intentionally.
- Set `TIANGONG_TEXTBOOK_APIKEY` or `TIANGONG_AI_APIKEY`. Credentials are never
  accepted in wrapper JSON, request files, URLs, or CLI arguments.
- When `request_file` / `input_file` is provided, the wrapper loads `.env` from
  that file's directory by default. `env_file` can point to a different dotenv
  file. It must be an owner-only regular non-symlink file (`chmod 600`), and
  only documented Tiangong variables are loaded. Existing process variables win.
- Optionally set `TIANGONG_AI_API_BASE_URL`; the CLI accepts a Supabase project
  root, `/functions/v1`, or `/rest/v1` and derives Functions URLs.

## Search

For normal searches, pass a query:

```bash
./scripts/textbook_search.sh '{
  "query": "activated sludge process principles",
  "top_k": 5
}'
```

The script calls:

```bash
npx --yes --package "@tiangong-ai/cli@0.0.62" -- tiangong-ai education search --query <query> --sources textbook --json
```

For exact edge-function payloads, provide `request_file` or `input_file`:

```bash
./scripts/textbook_search.sh '{
  "request_file": "./textbook-request.json",
  "dry_run": true
}'
```

## Raw Payload Filters

Wrapper JSON can include inline raw `textbook_search` fields; the wrapper will
forward them through the CLI `--input` path. The same payload can also be put in
`request_file` / `input_file`:

```json
{
  "query": "如何减排二氧化碳？",
  "filter": {
    "isbn_number": ["9787030641274"]
  },
  "datefilter": {
    "publication_date": { "gte": 1262304000 }
  },
  "topK": 5,
  "extK": 1
}
```

- `filter`: metadata term filters, shaped as `{ "field": ["value"] }`.
- `datefilter`: numeric range filters, shaped as
  `{ "field": { "gte"?: number, "lte"?: number } }`, for indexed numeric/date
  metadata fields.
- `topK`, `extK`: raw edge-function names for result count and adjacent chunk
  expansion.
- `getMeta` is not supported by `textbook_search`.

## Input Fields

- `query` or `input`: convenience query text.
- `request_file` or `input_file`: JSON body forwarded unchanged.
- `env_file`: optional dotenv file. Without it, `request_file` /
  `input_file` causes the wrapper to load `.env` from that file's directory.
- `filter`, `datefilter`, `topK`, `extK`: optional inline raw payload fields
  for textbook search.
- `sources`: optional compatibility field; only `textbook` or `default` is
  accepted.
- `dry_run`: true to return the exact request plan with masked credentials.
- `api_base_url`, `textbook_url`, `region`, `timeout` as non-secret routing values.
- `top_k`, `ext_k`: only used in query mode.