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Official agent skill

Merge

by withastro in withastro/astro

Handle main-to-next merge tasks including conflict resolution, changeset cleanup, and CI fix-ups.

OfficialCustom licenceAuto-check passed

Install Merge

skills CLI
$ npx skills add withastro/astro --skill merge -a claude-code

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

GitHub CLI
$ gh skill install withastro/astro merge --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/withastro/astro.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/merge .claude/skills/merge && 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
merge
GitHub stars
63k
Token cost
~153 tokens
SKILL.md length
51 words
Files
5
Skills in repo
10
Repo updated
First seen
Licence
Custom licence

At a glance

Handle main-to-next merge tasks including conflict resolution, changeset cleanup, and CI fix-ups.

  • Merging main into next
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Tasks that involve Static sites and blogs

What it does

Merge is an agent skill from withastro/astro, published by the product's own GitHub organization. Handle main-to-next merge tasks including conflict resolution, changeset cleanup, and CI fix-ups. Use when merging main into next.

Its SKILL.md is about 150 tokens, which your agent loads only when the skill is triggered. The skill folder holds 5 other files (for example `clean-changesets.md`, `evals/evals.json` and `fix-ci.md`).

It works with Astro. The repository describes itself as: The web framework for content-driven websites.

When your agent uses it

  • Merging main into next
  • Tasks that involve Static sites and blogs

Example prompts

  • “/merge”

What it can do on your machine

Read from SKILL.md and the folder at commit 3cbd72c. 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

    No scripts in the folder and no shell commands in SKILL.md.

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

  • Network

    No URLs in SKILL.md.

    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

Merge loads about 153 tokens when it runs. Until then it costs about 34 tokens; SKILL.md has 51 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~34
When it runs · the whole SKILL.md, loaded when a task matches
~153

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 51 words (~153 tokens).

“Handle the main-to-next merge process. This skill has sub-skills for each stage:”

— opening of SKILL.md by withastro, Custom licence
name
merge

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files in .agents/skills/merge of withastro/astro.

  • SKILL.md
  • clean-changesets.md
  • evals/evals.json
  • fix-ci.md
  • resolve-conflicts.md

Open the folder on GitHubat commit 3cbd72c

Compare with similar skills

Merge 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.

Merge compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Merge this skillwithastro/astro63k—~153Automated safety check: PassCustom licence
Tabler Astro Dev Servertabler/tabler42k—~1.2kAutomated safety check: PassMIT
Tabler Astro Component Scriptstabler/tabler42k—~2.1kAutomated safety check: PassMIT
Kill AI Slopyetone/kill-ai-slop1.3k—~1.4kAutomated safety check: PassApache-2.0
Supabasecurvenote/curvenote1705 repos~2.2kAutomated safety check: PassCustom licence
Motion Dev Animations199-biotechnologies/motion-dev-animations-skill1141 repos~2.8kAutomated safety check: NotesMIT

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  • Tabler Astro Dev Server

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    Rules for adding or fixing client-side scripts in Tabler's Astro components so the copied preview HTML stays readable, self-contained and runs in the right order.

    42k GitHub stars~2.1k tokensUpdated today
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    yetone/kill-ai-slop

    Find and remove AI slop — the generic, machine-default visual and copy tics of vibe-coded products — from a web project.

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  • Motion Dev Animations

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  • Codebase Wiki

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More from withastro/astro

All 10 skills in this repo

  • Analyze GitHub Action Logs

    withastro/astro

    Official

    Analyze recent GitHub Actions workflow runs to identify patterns, mistakes, and improvements.

    63k GitHub starsUsed in 1 repo~1.3k tokens
    Auto-check passed

  • Astro Developer

    withastro/astro

    Official

    Comprehensive guide for developing in the Astro monorepo. An agent skill from withastro/astro.

    63k GitHub starsUsed in 1 repo~1.5k tokens
    Auto-check passed

  • Astro PR Writer

    withastro/astro

    Official

    Write and update Astro pull requests with reviewer-friendly titles and high-signal bodies.

    63k GitHub stars~1.2k tokensUpdated today
    Auto-check passed

  • Changeset

    withastro/astro

    Official

    Create a changeset for the Astro monorepo. An agent skill from withastro/astro.

    63k GitHub stars~1.1k tokensUpdated today
    Auto-check passed

  • Writing Comments

    withastro/astro

    Official

    How to write JSDoc (/ /) and inline (//) comments in the Astro codebase, for contributors reading the source — not end users.

    63k GitHub stars~2.7k tokensUpdated today
    Auto-check passed

  • Astro Code Review

    withastro/astro

    Official

    Perform a static, read-only code review of an Astro pull request or of a local branch, commit range, diff, patch, or working tree being prepared as a pull request.

    63k GitHub stars~7.6k tokensUpdated today
    Auto-check passed

Works with

Questions about Merge

What does Merge do?

Handle main-to-next merge tasks including conflict resolution, changeset cleanup, and CI fix-ups. Merge is an agent skill from withastro/astro, published by the product's own GitHub organization. Handle main-to-next merge tasks including conflict resolution, changeset cleanup, and CI fix-ups.

When should I use Merge?

Merge fits situations like: merging main into next; tasks that involve Static sites and blogs.

How do I install Merge in Claude Code?

Run `npx skills add withastro/astro --skill merge -a claude-code`. Or copy the skill folder (.agents/skills/merge in withastro/astro) into .claude/skills/merge in your project. Claude Code loads it when a task matches its description.

How do I install Merge in Codex?

Run `npx skills add withastro/astro --skill merge -a codex`. Or copy the skill folder (.agents/skills/merge in withastro/astro) into .agents/skills/merge in your project. Codex loads it when a task matches its description.

Can I use Merge 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 withastro/astro --skill merge -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/merge, .gemini/skills/merge, .github/skills/merge and .opencode/skills/merge in your project.

What does Merge need to run?

SKILL.md names no scripts, command-line tools or credentials: Merge is instructions for the agent only.

Does Merge 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 Merge 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 Merge use?

Merge has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Merge use?

About 153 tokens (SKILL.md is roughly 612 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 Merge?

Skills that share tags, products or a category with Merge: Tabler Astro Dev Server (tabler/tabler, 42k stars), Tabler Astro Component Scripts (tabler/tabler, 42k stars), Kill AI Slop (yetone/kill-ai-slop, 1.3k stars) and Supabase (curvenote/curvenote, 170 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Merge?

withastro (a GitHub organization, an official publisher) maintains it in withastro/astro, which has 63,126 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on October 9, 2026.

Source: withastro/astro on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.