typography-selector

From the files and frontmatter at commit 82ce211. This is how much a skill can do, not whether it is risky.

• Names web addresses

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

  Outside links we did not follow

• Pre-approves tools

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

  SKILL.md:5 (opens in a new tab)

Pattern check: nothing flagged · commit 82ce211 · 3 Nov 2026

We checked every text file in this skill, at commit 82ce211 on 3 Nov 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

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 specFails

  The open format from agentskills.io, held to the strictest version of each rule among the agents we check.

  • Error

    There is no name field. The spec requires one. N1

    Fix: Add name: typography-selector.

  • Warning

    allowed-tools is a list; the spec defines a space-separated string. gh skill publish rejects a list, though Claude Code accepts one. O5

    Fix: Write it on one line: allowed-tools: AskUserQuestion mcp__claude-in-chrome__tabs_context_mcp mcp__claude-in-chrome__tabs_create_mcp mcp__claude-in-chrome__navigate mcp__claude-in-chrome__computer mcp__claude-in-chrome__read_page mcp__cl…

  • Note

    There is no license field, so readers can't tell whether they may reuse the skill. O2

    Fix: Add license: with an SPDX name such as MIT or Apache-2.0, or the name of a bundled licence file.

  • Note

    Reference files over 100 lines with no table of contents at the top: references/font-pairing.md (274 lines). B5

    Fix: Add a short list of the sections at the top of each.

• 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

    There is no name field. Claude Code uses the folder name, typography-selector. N1

    Fix: Add name: typography-selector.

  • Note

    Reference files over 100 lines with no table of contents at the top: references/font-pairing.md (274 lines). B5

    Fix: Add a short list of the sections at the top of each.

• 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

    There is no name field. Anthropic's validator stops with "Missing 'name' in frontmatter". N1

    Fix: Add name: typography-selector.

  • Note

    allowed-tools is a list; the spec defines a space-separated string. O5

    Fix: Write it on one line: allowed-tools: AskUserQuestion mcp__claude-in-chrome__tabs_context_mcp mcp__claude-in-chrome__tabs_create_mcp mcp__claude-in-chrome__navigate mcp__claude-in-chrome__computer mcp__claude-in-chrome__read_page mcp__cl…

  • Note

    Reference files over 100 lines with no table of contents at the top: references/font-pairing.md (274 lines). B5

    Fix: Add a short list of the sections at the top of each.

• OpenAI (Codex & API)Fails

  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.

  • Error

    There is no name field. Codex falls back to the folder name, but OpenAI's upload follows the spec, which requires one. N1

    Fix: Add name: typography-selector.

  • Note

    allowed-tools is a list; the spec defines a space-separated string. O5

    Fix: Write it on one line: allowed-tools: AskUserQuestion mcp__claude-in-chrome__tabs_context_mcp mcp__claude-in-chrome__tabs_create_mcp mcp__claude-in-chrome__navigate mcp__claude-in-chrome__computer mcp__claude-in-chrome__read_page mcp__cl…

• VS Code & CopilotPasses with warnings

  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.

  • Warning

    There is no name field. VS Code uses the folder name; GitHub's Copilot docs list the name as required. N1

    Fix: Add name: typography-selector.

  • Note

    allowed-tools is a list; the spec defines a space-separated string. O5

    Fix: Write it on one line: allowed-tools: AskUserQuestion mcp__claude-in-chrome__tabs_context_mcp mcp__claude-in-chrome__tabs_create_mcp mcp__claude-in-chrome__navigate mcp__claude-in-chrome__computer mcp__claude-in-chrome__read_page mcp__cl…

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