nz-data-catalogue git:20261008.dfe58edA

Immutable. This exact content never changes and is served at /api/v1/blob/dd238008787565cc.

---
name: nz-data-catalogue
description: "Search the assessed NZ and Auckland public-data source catalogue by topic, hackathon problem, owner, access or grade, then route to a fetching skill. Use to discover suitable datasets and inspect endpoint availability."
license: MIT
compatibility: "Requires Python 3.10+ and network access for live data"
metadata:
  thecolab.category: "public-data"
  thecolab.source_owner: "TheColab"
  thecolab.source_type: "mixed"
  thecolab.auth: "none"
  thecolab.access_mode: "public-download"
  thecolab.data_class: "public"
  thecolab.writes: "false"
  thecolab.browser: "false"
  thecolab.risk: "low"
  thecolab.cache_ttl: "none"
  thecolab.schema_version: "1"
  thecolab.skill_type: "public-download"
  thecolab.pack: "nz-public-data"
  thecolab.source_url: "https://github.com/thecolab-ai/.skills"
  thecolab.allowed_domains: 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ww.research.ed.ac.uk,www.researchbank.ac.nz,www.resene.co.nz,www.resiloop.org.au,www.rfc-editor.org,www.ribbonrose.co.nz,www.riksdagen.se,www.road-info-prvs.mlit.go.jp,www.roland.com,www.rotordb.org,www.rsm.govt.nz,www.rummages.co.nz,www.ryde.nsw.gov.au,www.ryobitools.com,www.safensnug.co.nz,www.saferproducts.gov,www.salters.co.nz,www.samsung.com,www.satscan.org,www.schwalbe.com,www.scidb.cn,www.sciencedirect.com,www.scrapmart.co.nz,www.screenauckland.com,www.scribd.com,www.sealink.co.nz,www.secondedition.com.au,www.sewingmachine.co.nz,www.sewingtime.co.nz,www.sfcta.org,www.sfmta.com,www.shoesheriff.co.nz,www.shoespa.nz,www.sistemaaotearoa.org.nz,www.sleepyheadflooring.co.nz,www.snowcentre.co.nz,www.snowkids.co.nz,www.soe.epa.nsw.gov.au,www.southburnett.qld.gov.au,www.spanbild.co.nz,www.spark.co.nz,www.spca.nz,www.specsavers.co.nz,www.sportsgearrevived.org,www.ssb.no,www.standards.govt.nz,www.stat.auckland.ac.nz,www.stateoftheenvironment.detsi.qld.gov.au,www.stats.govt.nz,www.stjohn.org.nz,www.stlcitypermits.com,www.stmaryak.school.nz,www.stpls3d.com,www.strathfield.nsw.gov.au,www.stringworkshop.co.nz,www.suitcase-repair.com,www.supercheapauto.co.nz,www.sustainablebrisbane.com.au,www.swbno.org,www.sytadin.fr,www.t3caic.com,www.takemyhands.org,www.tcdc.govt.nz,www.techcollect.nz,www.teletechservices.co.nz,www.telford.gov.uk,www.tenancy.govt.nz,www.tensorflow.org,www.textilereuse.com,www.th-ab.de,www.theoilman.co.nz,www.thesustainabilitysociety.org.nz,www.thewarehousegroup.co.nz,www.thinkstep-anz.com,www.tiakiwai.co.nz,www.tmr.qld.gov.au,www.tomtom.com,www.toronto.ca,www.totalmowersauckland.co.nz,www.traffic.gov.scot,www.transport.gov.scot,www.transport.govt.nz,www.transportationgroup.nz,www.transportstyrelsen.se,www.trc.govt.nz,www.treasury.govt.nz,www.tripcheck.com,www.trl.co.uk,www.tuflow.com,www.tyrewise.co.nz,www.uclouvain.be,www.udottraffic.utah.gov,www.ugpti.org,www.uni-ulm.de,www.unichembrownsbay.co.nz,www.ura.gov.sg,www.valocityglobal.com,www.vanguardorchestral.co.nz,www.vegvesen.no,www.vetiver.org,www.vinnova.se,www.vinylplus.eu,www.w-nexco.co.jp,www.w3.org,www.waimakariri.govt.nz,www.waitaki.govt.nz,www.walkonwheels.co.nz,www.ward-demolition.co.nz,www.wasteauthority.wa.gov.au,www.wastebusters.co.nz,www.wastedataflow.org,www.wastehub.co.nz,www.wasteminz.org.nz,www.wastenothing.co.nz,www.wastetrack.co.nz,www.watercare.co.nz,www.waterfiltercompany.co.nz,www.waterservicesauthority.govt.nz,www.watersmart.co.nz,www.waze.com,www.wcoomd.org,www.weatherradar.co.nz,www.wekaelectrical.com,www.welectricity.co.nz,www.wellingtonwater.co.nz,www.werla.ie,www.westfield.co.nz,www.westhaven.co.nz,www.westhistory.org,www.wikidata.org,www.wilsonparking.co.nz,www.wisdomlib.org,www.wm.nz,www.worksafe.govt.nz,www.wqtma.co.nz,www.wsc.nsw.gov.au,www.wsdot.wa.gov,www.yakkacontracting.co.nz,www.yellow.co.nz,www.youtube.com,www.yuhanjiang.com,www.zenithwater.co.nz,www.zerohunger.org.nz,www1.river.go.jp,www150.statcan.gc.ca,www2.calrecycle.ca.gov,www2.eit.ac.nz,www3.stats.govt.nz,wwwapps2.tc.gc.ca,wzdx.wsdot.wa.gov,wzdxapi.aztech.org,x.com,xiaodongsuper.github.io,zabal-agriculture.opendata-paysbasque.fr,zenodo.org,zerowaste.co.nz"
  thecolab.last_verified: "2026-10-08"
  thecolab.health: "healthy"
  thecolab.maintainer: "@adam91holt"
---

# NZ data catalogue

Look up data sources here first, then fetch with a mapped skill. This is the
assessed Auckland CivicTech Hackathon catalogue, seeded from the v4 JSON export
for 16 October 2026. It includes NZ sources, global resources and overseas
examples; inspect `scope`, `access`, `agent_check`, `not_data` and `caveat` before
recommending a source. The bundled snapshot is not a live completeness claim.

## Workflow

1. Search a topic or filter by a problem tag. Use `get` to inspect a candidate's
   licence, caveats, endpoint and stated latest data.
2. Inspect `fetch_skills`: `existing` means present in the seed repo; `planned`
   names an engine being built in parallel. Check availability before invoking.
   `exact` maps the source surface, `related` provides a supported equivalent or
   narrower dataset, and `catalogue` offers metadata discovery. Read any note.
3. Fetch with the mapped skill's documented commands. Some existing skills,
   including `at-transport`, require a user-supplied key; this index is keyless
   and reads no credentials. Empty `fetch_skills` means no known mapping.
4. Use `check` if a live availability probe helps. A reachable page or download
   is not proof of usable data, a reusable licence, or a current dataset.

## Commands

Run from the repo root; Python 3.10+, standard library only.

```bash
python3 skills/nz-data-catalogue/scripts/cli.py search "flood paths" --limit 10 --json
python3 skills/nz-data-catalogue/scripts/cli.py filter --problem F1 --grade A --auckland --json
python3 skills/nz-data-catalogue/scripts/cli.py filter --category "Traffic" --scope Auckland --access Open --type GIS --owner "Auckland Transport" --json
python3 skills/nz-data-catalogue/scripts/cli.py get C0001 --json
python3 skills/nz-data-catalogue/scripts/cli.py stats --json
python3 skills/nz-data-catalogue/scripts/cli.py top --problem F1 --n 10 --json
python3 skills/nz-data-catalogue/scripts/cli.py check C0064 --json
```

Every command supports human output and `--json`. `search` requires all query
words across name, why useful, owner and category. Ranking uses weighted term
frequency and inverse document frequency, with a name-phrase bonus; name has
weight 5, why useful and owner 2, category 1. It does not stem or expand synonyms.
`relevance` is separate from the catalogue's assessment `score`.

`filter` combines flags with AND. Text flags are case-insensitive substrings;
repeat `--grade` to accept several grades. `--auckland` means `yes`; supply
`yes`, `partial`, `no` or `unknown` explicitly to select that coverage status.
`--problem` accepts F1, T1, T2, T3, W1, W2 or W3 (case-insensitive).
Search and filter default to 20 results; `--limit` accepts 1–500. Filter and
`top` order by assessment score, then ID. `top` excludes `Not data` rows and
returns 10 by default; `--n` accepts 1–500. It can include overseas examples.
No geometry is stored, so bbox and GeoJSON belong to the fetching skills.

`check` GETs the direct endpoint, falling back to the landing URL. Each HTTP
call has a 10-second timeout; at most 64 KiB is read. It reports HTTP status,
content type, final URL, elapsed time, truncation and common challenge/API-error
states. It accepts only a bundled ID, public HTTP(S) URLs and hosts in the
bundled allowlist; redirects must stay on that allowlist. Templates and URLs
containing several links are unsupported. Checks never supply keys or perform
browser challenge retries. Errors use exit 2 (input), 4 (blocked), 5 (upstream),
6 (catalogue/schema/API error), or 7 (unsupported URL).

## Assessments

The score is `0.30 fit + 0.20 usability + 0.15 access + 0.15 authority +
0.10 freshness + 0.10 granularity`, using each supplied 1–5 component.
The build preserves the export's score and grade rather than reassessing them.
A ≥ 4.2 is strongest for hackathon use; B ≥ 3.6 is strong; C ≥ 3.0 is usable with
trade-offs; D ≥ 2.4 is limited; E < 2.4 is low priority. Grades describe fit and
practical usability, not a guarantee of accuracy or a licence grant.

F1: flooding/flow paths; T1: congestion; T2: near-miss safety;
T3: incidents/roadworks; W1: construction and demolition materials;
W2: reuse/repair/recycling; W3: illegal dumping.
`Confirmed`, `Corrected`, `Moved (new URL)` and `Could not verify` preserve the
source review outcomes. `Not data` is retained with `not_data: true`; broken
sources and rows marked `Duplicate of` are excluded. Null checks stay unknown.

## Provenance and refresh

JSON envelopes and catalogue records carry `source_url`, `publisher`, `licence`,
`retrieved_at` (UTC), and `latest_data`. For local commands, `retrieved_at` is
when this client reads the snapshot; `retrieval_kind: bundled_catalogue` makes
that distinction explicit. Source-stated `latest_data` strings are preserved,
including `live` and year-only values. Counts in `records_size` and caveats are
snapshot claims, not refreshed by `check`. The export's overall reuse licence
is not stated (`null`); MIT frontmatter applies to code/documentation.
The common envelope exposes `source`, `query`, `data`, `warnings` and `blocked`;
rows are in `data.records`, statistics in `data.stats`, and probes in
`data.check`. Failed results include `error.code` and `error.message`.

```bash
python3 skills/nz-data-catalogue/scripts/build_catalogue.py /path/to/akl-catalogue-v4.json --sync-domains --json
```

`scripts/build_catalogue.py` also accepts `--output PATH`. It validates required
columns, stable unique IDs and finite scores; excludes marked duplicates and
broken rows; drops Evidence and agent notes; and writes deterministic gzip
with the input SHA-256 and exact source host allowlist. Credential-like URL
query values become `{credential}` with `credential_redacted: true`; OSM
Taginfo's non-authentication `key` filter is preserved. `--sync-domains` updates
the frontmatter and source-note host declarations. After a refresh, review
the mapping rules and run the checks below.

- Source, snapshot and routing details: [references/source-notes.md](references/source-notes.md).
- Host/organisation routing rules: [references/skill-map.json](references/skill-map.json).
- Shipped compact index: `data/catalogue.json.gz`.
- Deterministic checks: `python3 skills/nz-data-catalogue/scripts/test_contract.py`.
- Real-response fixtures: `tests/fixtures/`; bounded live probes: `scripts/smoke_test.py`.