Engine Whats New
flutter/flutter
Generates the "what's new" release summary and diff file for changes in the Flutter engine (//engine/src/flutter) between two releases (e.g., 3.47 vs 3.44).
Build, test, and package VSCode extensions in the dartnode repo
Install Build Extension
$ npx skills add MelbourneDeveloper/dart_node --skill build-extension -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install MelbourneDeveloper/dart_node build-extension --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/MelbourneDeveloper/dart_node.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/build-extension .claude/skills/build-extension && rm -rf skills-srcUse ~/.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/
Install the "build-extension" agent skill from https://github.com/MelbourneDeveloper/dart_node/tree/main/.claude/skills/build-extension into .claude/skills/build-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "build-extension", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/MelbourneDeveloper/dart_node/tree/main/.claude/skills/build-extensionType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add MelbourneDeveloper/dart_node --skill build-extension -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install MelbourneDeveloper/dart_node build-extension --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MelbourneDeveloper/dart_node.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/build-extension .agents/skills/build-extension && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "build-extension" agent skill from https://github.com/MelbourneDeveloper/dart_node/tree/main/.claude/skills/build-extension into .agents/skills/build-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "build-extension", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add MelbourneDeveloper/dart_node --skill build-extension -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install MelbourneDeveloper/dart_node build-extension --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MelbourneDeveloper/dart_node.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/build-extension .cursor/skills/build-extension && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "build-extension" agent skill from https://github.com/MelbourneDeveloper/dart_node/tree/main/.claude/skills/build-extension into .cursor/skills/build-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "build-extension", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/MelbourneDeveloper/dart_node.git --path .claude/skills/build-extension--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add MelbourneDeveloper/dart_node --skill build-extension -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install MelbourneDeveloper/dart_node build-extension --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MelbourneDeveloper/dart_node.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/build-extension .gemini/skills/build-extension && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "build-extension" agent skill from https://github.com/MelbourneDeveloper/dart_node/tree/main/.claude/skills/build-extension into .gemini/skills/build-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "build-extension", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install MelbourneDeveloper/dart_node build-extensionInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add MelbourneDeveloper/dart_node --skill build-extension -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/MelbourneDeveloper/dart_node.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/build-extension .github/skills/build-extension && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "build-extension" agent skill from https://github.com/MelbourneDeveloper/dart_node/tree/main/.claude/skills/build-extension into .github/skills/build-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "build-extension", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add MelbourneDeveloper/dart_node --skill build-extension -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install MelbourneDeveloper/dart_node build-extension --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/MelbourneDeveloper/dart_node.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/build-extension .opencode/skills/build-extension && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "build-extension" agent skill from https://github.com/MelbourneDeveloper/dart_node/tree/main/.claude/skills/build-extension into .opencode/skills/build-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "build-extension", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
build-extension- GitHub stars
- 113
- Token cost
- ~331 tokens
- SKILL.md length
- 110 words
- Files
- 1
- Skills in repo
- 15
- Repo updated
- First seen
- Licence
- None found
At a glance
Build, test, and package VSCode extensions in the dartnode repo
- Tasks that involve Cross-platform mobile apps
- SKILL.md covers dart_node_vsix SDK package and Architecture
- Calls npm and dart
What it does
Build Extension is an agent skill from MelbourneDeveloper/dart_node. Build, test, and package VSCode extensions in the dartnode repo
Its SKILL.md is about 330 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Mobile, covering Cross-platform mobile apps. It works with Visual Studio Code and Dart. The repository describes itself as: Write your entire stack in Dart: React web apps, React Native mobile apps with Expo, and Node.js Express backends.
When your agent uses it
- Tasks that involve Cross-platform mobile apps
Example prompts
- “/build-extension”
Requirements
- Node.js
- Pre-approved tools (allowed-tools): Bash
What it can do on your machine
Read from SKILL.md and the folder at commit 5587886. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
Bash
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
npmdart
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npm, 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
Build Extension loads about 331 tokens when it runs. Until then it costs about 20 tokens; SKILL.md has 110 words of instructions outside code blocks.
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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
allowed-tools: Bash
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
Without a licence we can't republish the file, so here is its outline and opening line. It has 110 words (~331 tokens).
“This repo has one VSCode extension component:”
- name
- build-extension
- allowed-tools
- Bash
- argument-hint
- [too-many-cooks|dart-node-vsix] [build|test|package|install]
- disable-model-invocation
- true
Files
Just SKILL.md in .claude/skills/build-extension of MelbourneDeveloper/dart_node.
Open the folder on GitHubat commit 5587886
Compare with similar skills
Build Extension 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Build Extension this skillMelbourneDeveloper/dart_node | 113 | — | ~331 | Automated safety check: Notes | None | |
| Engine Whats Newflutter/flutter | 179k | — | ~978 | Automated safety check: Pass | BSD-3-Clause | |
| Flutter Cherry Pickflutter/flutter | 179k | — | ~1.8k | Automated safety check: Pass | BSD-3-Clause | |
| Upgrade Browserflutter/flutter | 179k | — | ~1.1k | Automated safety check: Pass | BSD-3-Clause | |
| Bump Dartflutter/flutter | 179k | — | ~1.2k | Automated safety check: Pass | BSD-3-Clause | |
| Run Devicelab With Ledflutter/flutter | 179k | — | ~786 | Automated safety check: Pass | BSD-3-Clause |
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How to land a formal cherry-pick of a merged PR for the flutter/flutter repo stable or beta channel.
Upgrade Browser
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Bump Dart
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Related
Works with
Categories
Questions about Build Extension
What does Build Extension do?
Build, test, and package VSCode extensions in the dartnode repo. Build Extension is an agent skill from MelbourneDeveloper/dart_node.
When should I use Build Extension?
Build Extension fits situations like: tasks that involve Cross-platform mobile apps.
How do I install Build Extension in Claude Code?
Run `npx skills add MelbourneDeveloper/dart_node --skill build-extension -a claude-code`. Or copy the skill folder (.claude/skills/build-extension in MelbourneDeveloper/dart_node) into .claude/skills/build-extension in your project. Claude Code loads it when a task matches its description.
How do I install Build Extension in Codex?
Run `npx skills add MelbourneDeveloper/dart_node --skill build-extension -a codex`. Or copy the skill folder (.claude/skills/build-extension in MelbourneDeveloper/dart_node) into .agents/skills/build-extension in your project. Codex loads it when a task matches its description.
Can I use Build Extension 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 MelbourneDeveloper/dart_node --skill build-extension -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/build-extension, .gemini/skills/build-extension, .github/skills/build-extension and .opencode/skills/build-extension in your project.
What does Build Extension need to run?
Going by SKILL.md and its folder, Build Extension needs the command-line tools its instructions call (npm and dart). Our summary lists: Node.js. Its frontmatter pre-approves these tools: Bash.
Does Build Extension access the network?
SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Build Extension safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Build Extension use?
No licence was found for Build Extension or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Build Extension use?
About 331 tokens (SKILL.md is roughly 1.3k 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 Build Extension?
Skills that share tags, products or a category with Build Extension: Engine Whats New (flutter/flutter, 179k stars), Flutter Cherry Pick (flutter/flutter, 179k stars), Upgrade Browser (flutter/flutter, 179k stars) and Bump Dart (flutter/flutter, 179k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Build Extension?
MelbourneDeveloper (a GitHub user) maintains it in MelbourneDeveloper/dart_node, which has 113 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on September 14, 2026.
Source: MelbourneDeveloper/dart_node on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.