[hoangsvit]

New Google Skills lab — GSP1302

• Leveraging Verifiable Credentials and Zero-Knowledge Proofs with Sindri.
• Official: https://www.skills.google/focuses/118451?parent=catalog (5 tasks, 4 checkpoints: 30/20/25/25).
• Source code: https://github.com/Sindri-Labs/verifiable-credentials-codelab and CLI: https://github.com/Sindri-Labs/sindri-js .
• Google Skills Catalog; membership in the October Arcade active games is not verified.
• Checked main code search, all PR search by ID/title, and indexed eplus.dev by ID/title/slug; no matching GSP1302 solution found. This PR adds a new lab only, no old labs changed.

Files and task coverage

• labs/GSP1302/lab.sh: independent Bash; install published Sindri CLI; clone upstream example; sign degree credential with local key; clone official public ZK circuit; generate proof; verify with Go; upload and verify the five exact grader artifacts in the existing lab bucket.
• labs/GSP1302/HASHNODE.md: Overview → Setup → full Task 1–5 manual steps and checkpoints → Solution of Lab → Quick (exactly two commands from main) → Manual → sources. Quick URL only becomes available after merge. No verified manual YouTube video or image-embedding rights.
• ePlus.DEV – Starting Execution banner; TTY/FORCE_COLOR/NO_COLOR; Copyright (c) 2026 ePlus.DEV | Unlicense; detect project and unique lab bucket; no hardcoded region, project, passwords, or Sindri key; bounded retries, idempotent checkout, no destructive cleanup.
• Runtime requires the lab-provided Sindri API key supplied privately via prompt or environment variable. The upstream Sindri codelab is cloned at runtime, not copied.

Validation and review

• Static validation pending GitHub Actions: require bash -n, ShellCheck severity error, and changed-script unit tests on latest head before merge. No local ShellCheck executable was available. Do not mark PASS until CI confirms it.
• static validated only; runtime/grader unverified after CI passes; no authorized GCP or Sindri lab session used.
• Review CLI compatibility, public circuit availability/tag, Sindri key scope, grader object names and the Go pinned verification key. The original lab was last tested February 19, 2025.
• No merge, auto-approve, or push to main.

Test latest PR commit

Run only in an authorized Google Skills Cloud Shell. The commands resolve the latest head SHA (fail if empty), download the immutable commit to avoid stale caches, and write a SHA-stamped log. FORCE_COLOR=1 keeps colors through tee; NO_COLOR overrides it.

BRANCH=feat/gsp1302-sindri-credentials-scout-20261031
SHA="$(git ls-remote https://github.com/ePlus-DEV/storage.git refs/heads/$BRANCH | awk '{print $1}')"
test -n "$SHA" || { echo "Missing latest PR head SHA" >&2; exit 1; }
curl -fL --retry 3 "https://raw.githubusercontent.com/ePlus-DEV/storage/$SHA/labs/GSP1302/lab.sh" -o lab-test.sh
set -o pipefail
FORCE_COLOR=1 bash lab-test.sh 2>&1 | tee "lab-GSP1302-${SHA:0:12}.log"

This test uses bash lab-test.sh, not source lab.sh. It does not assert a runtime/grader PASS. Request human review before merging. Tracks #16.

Latest GitHub CI verification

• Lab Script Health run #41139643456 completed SUCCESS at head 7cd412a8ac50.
• Read-only changed-script checks: Bash syntax, ShellCheck severity error, and repository unit tests PASS.
• static validated only; runtime/grader unverified; no authorized lab session used.

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