Agent skill

Baseline Status

by GoogleChrome in GoogleChrome/modern-web-guidance-src

A skill your agent uses to check the browser support and Baseline status of web features.

Apache-2.0Auto-check passed

Install Baseline Status

skills CLI
$ npx skills add GoogleChrome/modern-web-guidance-src --skill baseline-status -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install GoogleChrome/modern-web-guidance-src baseline-status --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/GoogleChrome/modern-web-guidance-src.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/web-baseline .claude/skills/baseline-status && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
baseline-status
GitHub stars
1.1k
Token cost
~225 tokens
SKILL.md length
100 words
Files
1
Skills in repo
14
Repo updated
First seen
Licence
Apache-2.0

At a glance

A skill your agent uses to check the browser support and Baseline status of web features.

  • Check the browser support and Baseline status of web features
  • Calls pnpm

What it does

Baseline Status is an agent skill from GoogleChrome/modern-web-guidance-src. Use this skill to check the browser support and Baseline status of web features.

Its SKILL.md is about 230 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The licence is Apache-2.0.

When your agent uses it

  • Check the browser support and Baseline status of web features

Example prompts

  • “/baseline-status”

What it can do on your machine

Read from SKILL.md and the folder at commit c312847. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • pnpm

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use pnpm, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Baseline Status loads about 225 tokens when it runs. Until then it costs about 24 tokens; SKILL.md has 100 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~24
When it runs · the whole SKILL.md, loaded when a task matches
~225

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from GoogleChrome/modern-web-guidance-src at commit c312847, republished under its Apache-2.0 licence (© GoogleChrome). 100 words, ~225 tokens.

Download SKILL.mdSave it as .claude/skills/baseline-status/SKILL.md (or your agent's skills folder).
name
baseline-status
description
Use this skill to check the browser support and Baseline status of web features.

Web Baseline Status Skill

Use this skill when you need to verify if a web feature is ready for use or when you need browser support data for specific features.

Tool Usage

Basic Search: To search for features by ID or description:

bash
pnpm baselinestatus <query>

Example: pnpm baselinestatus over

JSON Output: To get structured output for easier parsing:

bash
pnpm baselinestatus <query> --json

Example: pnpm baselinestatus over --json

Baseline Status Mapping

The output maps internal status codes to human-readable terms:

  • Widely (high): Supported by all major browsers for a significant time.
  • Newly (low): Recently supported by all major browsers.
  • Limited (false): Not yet supported by all major browsers.

© GoogleChrome, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .agents/skills/web-baseline of GoogleChrome/modern-web-guidance-src.

Open the folder on GitHubat commit c312847

Compare with similar skills

Baseline Status next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Baseline Status compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Baseline Status this skillGoogleChrome/modern-web-guidance-src1.1k—~225Automated safety check: PassApache-2.0
Implementing Network Traffic Baseliningmukul975/Anthropic-Cybersecurity-Skills34k—~652Automated safety check: PassApache-2.0
Type Check Baselinesredis/RedisInsight8.9k—~1.5kAutomated safety check: PassCustom licence
Author Baseline Dgdai-dynamo/dynamo8.2k—~1.7kAutomated safety check: PassApache-2.0
Baseline UIibelick/ui-skills9.4k8 repos~855Automated safety check: PassMIT
Build Perf Baselinedotnet/skills5.6k1 repos~3.6kAutomated safety check: PassMIT

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  • Type Check Baselines

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    Official

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Questions about Baseline Status

What does Baseline Status do?

A skill your agent uses to check the browser support and Baseline status of web features. Baseline Status is an agent skill from GoogleChrome/modern-web-guidance-src. Use this skill to check the browser support and Baseline status of web features.

When should I use Baseline Status?

Baseline Status fits situations like: check the browser support and Baseline status of web features.

How do I install Baseline Status in Claude Code?

Run `npx skills add GoogleChrome/modern-web-guidance-src --skill baseline-status -a claude-code`. Or copy the skill folder (.agents/skills/web-baseline in GoogleChrome/modern-web-guidance-src) into .claude/skills/baseline-status in your project. Claude Code loads it when a task matches its description.

How do I install Baseline Status in Codex?

Run `npx skills add GoogleChrome/modern-web-guidance-src --skill baseline-status -a codex`. Or copy the skill folder (.agents/skills/web-baseline in GoogleChrome/modern-web-guidance-src) into .agents/skills/baseline-status in your project. Codex loads it when a task matches its description.

Can I use Baseline Status in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add GoogleChrome/modern-web-guidance-src --skill baseline-status -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/baseline-status, .gemini/skills/baseline-status, .github/skills/baseline-status and .opencode/skills/baseline-status in your project.

What does Baseline Status need to run?

Going by SKILL.md and its folder, Baseline Status needs the command-line tools its instructions call (pnpm).

Does Baseline Status access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Baseline Status safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Baseline Status use?

Baseline Status is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Baseline Status use?

About 225 tokens (SKILL.md is roughly 900 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Baseline Status?

Skills that share tags, products or a category with Baseline Status: Implementing Network Traffic Baselining (mukul975/Anthropic-Cybersecurity-Skills, 34k stars), Type Check Baselines (redis/RedisInsight, 8.9k stars), Author Baseline Dgd (ai-dynamo/dynamo, 8.2k stars) and Baseline UI (ibelick/ui-skills, 9.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Baseline Status?

GoogleChrome (a GitHub organization) maintains it in GoogleChrome/modern-web-guidance-src, which has 1,134 GitHub stars. The repository holds 14 skills in this directory. The repository was last updated on October 7, 2026.

Source: GoogleChrome/modern-web-guidance-src on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.