Skills

portaljs-add-geo

portaljs-add-geo is a skill in datopian/portaljs, last changed 8 Jul 2026. It can run shell commands, reach the network, name web addresses and pre-approve tools — read the findings before installing. Our pattern check found 1 item to review at commit fc7ccd6 on 27 Oct 2026.

Pattern check: 1 item to review · commit fc7ccd6 · 27 Oct 2026

Install
From the author
Auto-ingest a geospatial file (GeoJSON, Shapefile, GeoPackage, KML/KMZ, FlatGeobuf, CSV-with-geometry) into a PortalJS portal on the user's own machine, with no server. Normalizes CRS to EPSG:4326, derives a PMTiles render tier and a GeoParquet query tier, pushes all three artifacts to Cloudflare R2 via Git LFS, and appends one dual-tier datasets.json entry the showcase auto-renders. Use when the source is a vector geo format that needs a map or spatial-query view.
Licence
MIT
Repo stars
2.4k
Folder last changed
8 Jul 2026 (opens in a new tab)
Publisher
datopian
Files
2 files
Checked
fc7ccd6 (opens in a new tab) · 27 Oct 2026

Install

Each tab says whether it installs commit fc7ccd6, the one we checked, or the latest version.

No tab for your agent? Use Any agent for OpenCode, Goose, Windsurf (Devin Desktop), Zed, Roo Code, Factory Droid, Junie, Amp and Antigravity, and Claude Code for Cline. Kiro needs the folder copied by hand.

Pinned to commit fc7ccd6, the one we checked.

From your project's root folder:

tmp="$(mktemp -d)" &&
  git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/datopian/portaljs.git "$tmp" &&
  git -C "$tmp" fetch -q --depth 1 origin fc7ccd651459549a962c8b7aa08f60f8849fd9a5 &&
  git -C "$tmp" sparse-checkout set -- skills/portaljs-add-geo &&
  git -C "$tmp" checkout -q fc7ccd651459549a962c8b7aa08f60f8849fd9a5 &&
  mkdir -p .claude/skills &&
  mkdir .claude/skills/portaljs-add-geo &&
  cp -R "$tmp"/skills/portaljs-add-geo/. .claude/skills/portaljs-add-geo/ &&
  rm -rf "$tmp"

If Claude Code was already running and this created the skills folder, run /reload-skills.

Or install the portaljs plugin it ships in. Installs the latest version, not the one we checked. Installs everything in the plugin, including any hooks, MCP servers and scripts our check doesn't cover.

claude plugin marketplace add datopian/portaljs --scope project &&
  claude plugin install portaljs@datopian-portaljs --scope project
Claude Code docs (opens in a new tab)

What it can touch

From the files and frontmatter at commit fc7ccd6. This is how much a skill can do, not whether it is risky.

What it can touch: Shell, network or credentials

  • Runs shell commands

    Its instructions or files give the agent commands to run on your computer.

  • Reaches the network

    It sends or fetches data over the internet, for example with curl, an HTTP library or a package install.

  • Names web addresses

    It mentions outside web addresses the agent may visit. We list them but don't follow them.

  • Pre-approves tools

    Its allowed-tools field lists tools the agent may use without asking you first, in agents that honour it.

    SKILL.md:4

Pattern check

Pattern check: 1 item to review · commit fc7ccd6 · 27 Oct 2026

  • R34 · HighBroad tools pre-approved in allowed-tools

    SKILL.md:4 (opens in a new tab)
    allowed-tools: Read, Write, Edit, Bash(ogr2ogr:*), Bash(ogrinfo:*), Bash(tippecanoe:*), Bash(duckdb:*), Bash(git:*), Bash(curl:*), Bash(npx:*), Bash(node:*), Bash(mkdir:*), Bash(cp:*), Bash(wc:*), Ba…

We checked every text file in this skill, at commit fc7ccd6 on 27 Oct 2026, against 45 published patterns such as download-and-run commands, hidden text and credential access. We don't run the skill, we don't read the web pages it points to, and we can't judge everything its instructions might lead an agent to do. In published tests, pattern checks like this one missed most malicious skills. Read the skill before you install it — especially anything it asks you to download or run.

How the check worksReport an incorrect finding

Outside links we did not follow

  • https://github.com/datopian/portaljs/blob/main/.claude/commands/portaljs-add-geo.md
  • https://github.com/felt/tippecanoe
  • https://duckdb.org/docs/extensions/spatial

Format check

Each agent reads SKILL.md a little differently. We check the file against each one's published rules; we don't run the skill in any agent.

  • Agent Skills specPasses with warnings

    The open format from agentskills.io, held to what the strictest agents enforce, so one folder loads everywhere.

    • Warning

      Fields outside the spec: version, author and tags. Uploads to the Claude apps and API, and the spec's validator, reject the file; most agents ignore these fields. O1

      Fix: Delete them for a portable skill, or keep them if you only target the agents that read them.

  • Claude CodePasses

    Claude Code reads its own extra fields, ignores unknown ones, and still loads a skill whose frontmatter is broken, without its fields.

    • Note

      Claude Code ignores fields it doesn't know: version, author and tags. O1

      Fix: Check the spelling against Claude Code's field list, or delete them.

  • Claude apps & API uploadFails

    Uploading to claude.ai or the Claude API, or packaging with Anthropic's script, accepts only the six spec fields and stops on anything else.

    • Error

      Upload and packaging fail on fields outside the spec: version, author and tags. O1

      Fix: Delete them, and keep your own data under metadata as text values.

    • Note

      The description is 469 characters. The claude.ai Help Center says 200 at most, though Anthropic's API docs and validator allow 1,024. D4

      Fix: If the claude.ai upload refuses it, trim the description to 200 characters.

  • OpenAI (Codex & API)Passes with warnings

    Codex finds SKILL.md by its exact name and needs a description; OpenAI's Skills API checks the frontmatter against the spec and caps uploads.

    • Warning

      Fields outside the spec: version, author and tags. Codex ignores them; OpenAI doesn't say whether its upload accepts them. O1

      Fix: Delete them, or move your own data under metadata as text values.

  • VS Code & CopilotPasses

    VS Code reads skills one folder below .github/skills, .claude/skills or .agents/skills and falls back to the folder name when the name is missing or differs; GitHub's Copilot docs require the exact name SKILL.md.

    • Note

      VS Code ignores fields it doesn't support: version, author and tags. O1

      Fix: Delete them unless another agent you target reads them.

SKILL.md

Files

2 files

PathSize
SKILL.md (opens in a new tab)6.8 KB
references/reference.md (opens in a new tab)5 KB

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