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arcgis-to-portaljs

Migrate a whole ArcGIS Hub site into a PortalJS Arc portal end-to-end. Harvests the Hub /data.json (DCAT-US) inventory, exports every FeatureService layer through the ArcGIS REST query API with resultOffset paging, converts each to the serverless dual tier (PMTiles render + GeoParquet query) with tabular items to Parquet, pushes everything to Cloudflare R2 via Git LFS, appends dual-tier datasets.json entries, and writes a source-vs-derived parity report. Use to move a City or sector ArcGIS Hub open-data portal onto PortalJS with no server-side compute.

69

Quality

85%

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SecuritybySnyk

Low

Low-risk findings worth noting

SKILL.md
Quality
Evals
Security

Low

Low-risk findings.

2 low severity findings. Worth noting, but not necessarily harmful.

Low

W011: Third-party content exposure detected (indirect prompt injection risk).

What this means

The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.

Why it was flagged

This skill’s runtime workflow harvests outsider-authored Hub/DCAT and FeatureService data from a user-supplied Hub URL (`/data.json` and `FeatureServer/.../query?...&f=geojson`), which the agent downloads as readable GeoJSON/metadata and embeds into conversion/parity steps—an indirect prompt-injection surface from public web content.

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Low

W012: Unverifiable external dependency detected (runtime URL that controls agent).

What this means

The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.

Why it was flagged

The GitHub Actions workflow in references/sync-and-cutover.md performs a runtime git clone of https://github.com/felt/tippecanoe and builds/installs it (make && make install), which fetches and executes remote code to satisfy a required native dependency (tippecanoe).

Repository
datopian/portaljs
Audited
Security analysis
Snyk

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