USBR Project Records Fetch

Use the CLI-owned usbr.project-records/fetch operation. This Skill supplies intent routing, URL-selection discipline, and result-use boundaries only; the CLI TypeScript 7 runtime owns exact-origin enforcement, HTML parsing, schemas, limits, retries, link normalization, partial results, and receipts.

Before running

1. Read references/tiangong-data-requirement.json.
2. Use the caller- or workspace-resolved stable CLI. The requirement declares compatible capability and operation contract majors; it does not select a package build.
3. Run data describe with that same CLI. Continue only when the capability ID and required contract majors match, and copy the exact current capability/operation versions from that response into the run request.
4. Immediately inspect manifest.availability and discovery.availability. If either does not report available, stop before constructing a request and report its exact reasonCode, description, and resume criteria. Do not bypass suspension with a direct page fetch or another USBR endpoint.

tiangong-ai data describe usbr.project-records --json

Use the returned Discovery Metadata to confirm current coverage, granularity, limits, selection hints, provides, and doesNotProvide. Do not rely on objective source facts copied from an older Skill revision.

Choose source pages

• Supply exact official https://www.usbr.gov project or program page URLs already grounded by the user or another reviewed source. This operation is not site search, ranking, discovery across USBR, or recursive crawling.
• Use usbr-rise-fetch instead when the task needs RISE catalog item IDs or operational and water-environment time-series values.
• Select only pages relevant to the evidence need. The CLI preserves caller order, allows no other USBR subdomain, and inventories only links present on each fetched page.
• Set maxLinkedRecordsPerPage deliberately when a smaller bounded inventory is sufficient. Reaching it means later page links were not returned.

Prepare the request

Build one tiangong.data.run-request.v1 envelope. Replace both version placeholders with the exact versions from the same data describe response and validate input against the current operation schema returned by data describe.

{
  "schemaVersion": "tiangong.data.run-request.v1",
  "capabilityId": "usbr.project-records",
  "capabilityVersion": "<describe.manifest.capabilityVersion>",
  "operationId": "fetch",
  "operationVersion": "<describe.manifest.operations[0].operationVersion>",
  "input": {
    "urls": [
      "https://www.usbr.gov/uc/progact/amp/index.html",
      "https://www.usbr.gov/lc/region/programs/crbstudy.html"
    ],
    "maxLinkedRecordsPerPage": 25
  }
}

Use run-request limits only when intentionally lowering the manifest's page, record, response-byte, or timeout ceiling. Do not place output paths, retry settings, a custom base URL, external-link instructions, or credentials in input.

Run

tiangong-ai data run usbr.project-records fetch \
  --input /absolute/path/to/request.json --json

Preserve the complete tiangong.data.run-result.v1 envelope, including contract, warnings, errors, observations, and receipt, with data.

Result boundaries

• A project-page record represents bytes actually fetched by this operation; preserve its URL, title, description, digest, byte length, safe response metadata, and selected links together.
• A linked-document record is only an availability cue derived from one anchor. Its extension-derived type is not content validation, and null content metadata means the target was not downloaded or reviewed.
• Treat partial as a failed later source page: retain successful records and report the missing page. Treat blocked as no usable result.
• Treat max-pages, max-records, and max-linked-records as explicit bounded coverage. Do not infer that omitted or unlinked records do not exist.
• Same-origin filtering excludes external sources and other USBR subdomains; it is a security and scope boundary, not an assessment of relevance.
• Downloading linked files, OCR, document parsing, durable evidence admission, cross-source synthesis, and legal, policy, operating, environmental-effects, or governance judgments remain outside this atomic Skill.

Reference

• references/tiangong-data-requirement.json: stable capability requirement; it is not a package lock.