Growing Outside In Systems
lexler/skill-factory
Drive feature development using Outside-In TDD with Hexagonal Architecture.
Generate a TypeScript AppHost from an existing C example AppHost, then add a TypeScriptAppHostTest-based integration test.
Install Aspire Typescript Apphost
$ npx skills add CommunityToolkit/Aspire --skill aspire-typescript-apphost -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install CommunityToolkit/Aspire aspire-typescript-apphost --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/CommunityToolkit/Aspire.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/aspire-typescript-apphost .claude/skills/aspire-typescript-apphost && 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 "aspire-typescript-apphost" agent skill from https://github.com/CommunityToolkit/Aspire/tree/main/.agents/skills/aspire-typescript-apphost into .claude/skills/aspire-typescript-apphost/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aspire-typescript-apphost", 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/CommunityToolkit/Aspire/tree/main/.agents/skills/aspire-typescript-apphostType 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 CommunityToolkit/Aspire --skill aspire-typescript-apphost -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install CommunityToolkit/Aspire aspire-typescript-apphost --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/CommunityToolkit/Aspire.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/aspire-typescript-apphost .agents/skills/aspire-typescript-apphost && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "aspire-typescript-apphost" agent skill from https://github.com/CommunityToolkit/Aspire/tree/main/.agents/skills/aspire-typescript-apphost into .agents/skills/aspire-typescript-apphost/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aspire-typescript-apphost", 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 CommunityToolkit/Aspire --skill aspire-typescript-apphost -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install CommunityToolkit/Aspire aspire-typescript-apphost --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/CommunityToolkit/Aspire.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/aspire-typescript-apphost .cursor/skills/aspire-typescript-apphost && 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 "aspire-typescript-apphost" agent skill from https://github.com/CommunityToolkit/Aspire/tree/main/.agents/skills/aspire-typescript-apphost into .cursor/skills/aspire-typescript-apphost/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aspire-typescript-apphost", 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/CommunityToolkit/Aspire.git --path .agents/skills/aspire-typescript-apphost--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 CommunityToolkit/Aspire --skill aspire-typescript-apphost -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install CommunityToolkit/Aspire aspire-typescript-apphost --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/CommunityToolkit/Aspire.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/aspire-typescript-apphost .gemini/skills/aspire-typescript-apphost && 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 "aspire-typescript-apphost" agent skill from https://github.com/CommunityToolkit/Aspire/tree/main/.agents/skills/aspire-typescript-apphost into .gemini/skills/aspire-typescript-apphost/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aspire-typescript-apphost", 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 CommunityToolkit/Aspire aspire-typescript-apphostInstalls 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 CommunityToolkit/Aspire --skill aspire-typescript-apphost -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/CommunityToolkit/Aspire.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/aspire-typescript-apphost .github/skills/aspire-typescript-apphost && 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 "aspire-typescript-apphost" agent skill from https://github.com/CommunityToolkit/Aspire/tree/main/.agents/skills/aspire-typescript-apphost into .github/skills/aspire-typescript-apphost/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aspire-typescript-apphost", 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 CommunityToolkit/Aspire --skill aspire-typescript-apphost -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install CommunityToolkit/Aspire aspire-typescript-apphost --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/CommunityToolkit/Aspire.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/aspire-typescript-apphost .opencode/skills/aspire-typescript-apphost && 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 "aspire-typescript-apphost" agent skill from https://github.com/CommunityToolkit/Aspire/tree/main/.agents/skills/aspire-typescript-apphost into .opencode/skills/aspire-typescript-apphost/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "aspire-typescript-apphost", 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
aspire-typescript-apphost- GitHub stars
- 629
- Token cost
- ~739 tokens
- SKILL.md length
- 307 words
- Files
- 1
- Skills in repo
- 8
- Repo updated
- First seen
- Licence
- MIT
At a glance
Generate a TypeScript AppHost from an existing C example AppHost, then add a TypeScriptAppHostTest-based integration test.
- Works in 2 steps: A TypeScript AppHost example beside the… → A test in the integration's…
- Tasks that involve Integration testing
- SKILL.md covers Prompting rule, Goal, Workflow and Guardrails
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Aspire Typescript Apphost is an agent skill from CommunityToolkit/Aspire. Generate a TypeScript AppHost from an existing C example AppHost, then add a TypeScriptAppHostTest-based integration test.
Its SKILL.md is about 740 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 Testing & QA, covering Integration testing. It works with TypeScript and C#. The repository describes itself as: A community project with additional components and extensions for Aspire. The licence is MIT.
When your agent uses it
- Tasks that involve Integration testing
Example prompts
- “/aspire-typescript-apphost”
Workflow steps
2 steps, taken from the first numbered list in SKILL.md.
- A TypeScript AppHost example beside the existing C# AppHost example.
- A test in the integration's tests/CommunityToolkit.Aspire.Hosting..Tests project that uses TypeScriptAppHostTest.Run(...).
What it can do on your machine
Read from SKILL.md and the folder at commit 69a155d. 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
Aspire Typescript Apphost loads about 739 tokens when it runs. Until then it costs about 37 tokens; SKILL.md has 307 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 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 CommunityToolkit/Aspire at commit 69a155d, republished under its MIT licence (© CommunityToolkit). 307 words, ~739 tokens.
Download SKILL.mdSave it as
.claude/skills/aspire-typescript-apphost/SKILL.md (or your agent's skills folder).- name
- aspire-typescript-apphost
- description
- Generate a TypeScript AppHost from an existing C# example AppHost, then add a TypeScriptAppHostTest-based integration test.
Aspire TypeScript AppHost Generator
Use this skill when the user wants to create a TypeScript AppHost (apphost.mts) from an existing C# example AppHost and add/update the corresponding integration test.
Prompting rule
- Ask for the integration only when this skill is actively running and only if the user did not provide it.
- Do not ask for integration selection before this skill is invoked.
Goal
For one integration, produce:
- A TypeScript AppHost example beside the existing C# AppHost example.
- A test in the integration's
tests/CommunityToolkit.Aspire.Hosting.<Integration>.Testsproject that usesTypeScriptAppHostTest.Run(...).
Workflow
Resolve the integration
- If the user already specified an integration, use it.
- Otherwise, prompt for it at runtime.
Locate the source AppHost and test project
- Source C# example path pattern:
examples/<example>/CommunityToolkit.Aspire.Hosting.<Integration>.AppHost/Program.cs
- Target TypeScript example path pattern:
examples/<example>/CommunityToolkit.Aspire.Hosting.<Integration>.AppHost.TypeScript/
- Test project path:
tests/CommunityToolkit.Aspire.Hosting.<Integration>.Tests/
- Source C# example path pattern:
Create or update the TypeScript AppHost folder
- Required files:
apphost.mtsaspire.config.jsonpackage.jsontsconfig.jsoneslint.config.mjspackage-lock.json
- Keep template/config conventions aligned with existing TypeScript AppHost examples in this repo.
- Use TypeScript API method names generated for Aspire exports (for overloads, use the exported TypeScript name, not guessed C# casing).
- Required files:
Translate C# AppHost logic to TypeScript
- Preserve resource naming and behavior where practical.
- Use TypeScript Aspire methods and options shapes.
- Keep path handling and package mapping valid for the example location.
Add the integration TypeScript AppHost test
- Add
TypeScriptAppHostTests.csin the integration test project if missing. - Use:
TypeScriptAppHostTest.Run(...)appHostProject=CommunityToolkit.Aspire.Hosting.<Integration>.AppHost.TypeScriptfolder namepackageName= integration package nameexampleName= example folder namewaitForResources= resources required to verify startup in Aspire
- Follow existing test style and attributes (
[RequiresDocker]when applicable).
- Add
Validate changes
- Run the relevant test project to ensure the TypeScript AppHost compiles and starts via the shared validation flow.
Guardrails
- Do not edit generated
.aspire/modules/files. - Do not change unrelated examples or tests.
- Keep all changes scoped to the selected integration plus the skill files.
© CommunityToolkit, MIT. 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/aspire-typescript-apphost of CommunityToolkit/Aspire.
Open the folder on GitHubat commit 69a155d
Compare with similar skills
Aspire Typescript Apphost 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 |
|---|---|---|---|---|---|---|
| Aspire Typescript Apphost this skillCommunityToolkit/Aspire | 629 | — | ~739 | Automated safety check: Pass | MIT | |
| Growing Outside In Systemslexler/skill-factory | 239 | 1 repos | ~1.9k | Automated safety check: Pass | Apache-2.0 | |
| Git HooksProrise-cool/Claude-Code-Multi-Agent | 305 | — | ~3.6k | Automated safety check: Notes | None | |
| Test Writing WorkflowiOfficeAI/AionUi | 33k | 1 repos | ~1.2k | Automated safety check: Pass | Apache-2.0 | |
| Java SDK E2E Test with Replay Snapshotgithub/copilot-sdk | 11k | — | ~1.8k | Automated safety check: Pass | MIT | |
| Syncable Entity Integration Teststwentyhq/twenty | 58k | — | ~3.4k | Automated safety check: Pass | Custom licence |
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Aspireify
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WORKFLOW SKILL - Wire Aspire AppHosts or repair TypeScript AppHost toolchains.
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Related
Works with
Categories
Questions about Aspire Typescript Apphost
What does Aspire Typescript Apphost do?
Generate a TypeScript AppHost from an existing C example AppHost, then add a TypeScriptAppHostTest-based integration test. Aspire Typescript Apphost is an agent skill from CommunityToolkit/Aspire. Generate a TypeScript AppHost from an existing C example AppHost, then add a TypeScriptAppHostTest-based integration test.
When should I use Aspire Typescript Apphost?
Aspire Typescript Apphost fits situations like: tasks that involve Integration testing.
How do I install Aspire Typescript Apphost in Claude Code?
Run `npx skills add CommunityToolkit/Aspire --skill aspire-typescript-apphost -a claude-code`. Or copy the skill folder (.agents/skills/aspire-typescript-apphost in CommunityToolkit/Aspire) into .claude/skills/aspire-typescript-apphost in your project. Claude Code loads it when a task matches its description.
How do I install Aspire Typescript Apphost in Codex?
Run `npx skills add CommunityToolkit/Aspire --skill aspire-typescript-apphost -a codex`. Or copy the skill folder (.agents/skills/aspire-typescript-apphost in CommunityToolkit/Aspire) into .agents/skills/aspire-typescript-apphost in your project. Codex loads it when a task matches its description.
Can I use Aspire Typescript Apphost 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 CommunityToolkit/Aspire --skill aspire-typescript-apphost -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/aspire-typescript-apphost, .gemini/skills/aspire-typescript-apphost, .github/skills/aspire-typescript-apphost and .opencode/skills/aspire-typescript-apphost in your project.
What does Aspire Typescript Apphost need to run?
SKILL.md names no scripts, command-line tools or credentials: Aspire Typescript Apphost is instructions for the agent only.
Does Aspire Typescript Apphost 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 Aspire Typescript Apphost 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 Aspire Typescript Apphost use?
Aspire Typescript Apphost is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Aspire Typescript Apphost use?
About 739 tokens (SKILL.md is roughly 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 Aspire Typescript Apphost?
Skills that share tags, products or a category with Aspire Typescript Apphost: Growing Outside In Systems (lexler/skill-factory, 239 stars), Git Hooks (Prorise-cool/Claude-Code-Multi-Agent, 305 stars), Test Writing Workflow (iOfficeAI/AionUi, 33k stars) and Java SDK E2E Test with Replay Snapshot (github/copilot-sdk, 11k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Aspire Typescript Apphost?
CommunityToolkit (a GitHub organization) maintains it in CommunityToolkit/Aspire, which has 629 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on October 6, 2026.
Source: CommunityToolkit/Aspire on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.