#601

Globales Ranking · von 601 Skills

runtime-context AI Agent Skill

Quellcode ansehen: b-open-io/prompts

Safe

Installation

npx skills add b-open-io/prompts --skill runtime-context

9

Installationen

Runtime Context

Agents run in different environments with different capabilities. This skill
detects the current runtime so agents can use the right tools and fail clearly
when a required capability is missing.

The Three Runtimes

Runtime How to detect Tools available Skills via
Claude Code CLAUDE_CODE=1 env var, or Skill()/Agent()/Read tools exist Full suite: Read, Write, Edit, Bash, Grep, Glob, Agent, Skill, WebFetch, WebSearch Skill() tool
Vercel Sandbox /vercel/sandbox/ paths exist, VERCEL_SANDBOX_ID env var set bash-tool trio: bash, readFile, writeFile, plus skill if configured createSkillTool() from bash-tool
Local dev Neither of the above, process.cwd() is in user home or project dir Whatever the app provides (usually just HTTP + AI SDK) Direct file reads or none

Detection Script

Run scripts/detect.sh to get a JSON summary of the current environment:

bash skills/runtime-context/scripts/detect.sh

Returns:

{
  "runtime": "sandbox",
  "has_bash": true,
  "has_skill_tool": true,
  "sandbox_id": "sbx_abc123",
  "working_dir": "/vercel/sandbox/bot",
  "node_version": "v22.x.x",
  "bun_version": "1.x.x"
}

For SOUL.md / System Prompt Authors

When writing a system prompt that works across runtimes, structure it like this:

## Environment Awareness

Before taking action, check your environment:
1. If you have `Skill()` and `Agent()` tools, you are in Claude Code
   - Use skills via `Skill(name)`, delegate via `Agent()`
   - Full file access via Read/Write/Edit
2. If you have `bash`, `readFile`, `writeFile` tools, you are in a Sandbox
   - Run scripts via `bash`, read context via `readFile`
   - Skills available via the `skill` tool if configured
3. If you have no tools, you are text-only
   - Answer from your training and system prompt context
   - Tell the user what you would do if you had tools

Do not guess which tools exist. If a tool call fails, state what tool
was missing and what capability it would have provided.

Adapting Behavior

The goal is NOT fallbacks. The goal is clarity.

Correct: "I'm in a Sandbox. I have bash and file tools but no Skill() tool.
I'll read the skill instructions directly from ./skills/clawnet/SKILL.md."

Incorrect: Silently trying Skill() first, catching the error, then trying
readFile, then trying fetch, then giving up without telling the user.

Capability Declaration Pattern

At the start of a conversation or task, state what tools are available:

I'm running in a Vercel Sandbox with bash, file, and skill tools.
I can: run scripts, read/write files, look up skill instructions.
I cannot: spawn subagents, use Claude Code tools, access the host filesystem.

This sets expectations immediately so users and orchestrators know what to ask for.

Reference Files

  • README.md — Three runtimes explained, capability matrix, bash-tool integration guide for SDK developers, skill declaration across runtimes

Installationen

Installationen 9
Globales Ranking #601 von 601

Sicherheitsprüfung

ath Safe
socket Safe
Warnungen: 0 Bewertung: 90
snyk Low
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So verwenden Sie diesen Skill

1

Install runtime-context by running npx skills add b-open-io/prompts --skill runtime-context in your project directory. Führen Sie den obigen Installationsbefehl in Ihrem Projektverzeichnis aus. Die Skill-Datei wird von GitHub heruntergeladen und in Ihrem Projekt platziert.

2

Keine Konfiguration erforderlich. Ihr KI-Agent (Claude Code, Cursor, Windsurf usw.) erkennt installierte Skills automatisch und nutzt sie als Kontext bei der Code-Generierung.

3

Der Skill verbessert das Verständnis Ihres Agenten für runtime-context, und hilft ihm, etablierte Muster zu befolgen, häufige Fehler zu vermeiden und produktionsreifen Code zu erzeugen.

Was Sie erhalten

Skills sind Klartext-Anweisungsdateien — kein ausführbarer Code. Sie kodieren Expertenwissen über Frameworks, Sprachen oder Tools, das Ihr KI-Agent liest, um seine Ausgabe zu verbessern. Das bedeutet null Laufzeit-Overhead, keine Abhängigkeitskonflikte und volle Transparenz: Sie können jede Anweisung vor der Installation lesen und prüfen.

Kompatibilität

Dieser Skill funktioniert mit jedem KI-Coding-Agenten, der das skills.sh-Format unterstützt, einschließlich Claude Code (Anthropic), Cursor, Windsurf, Cline, Aider und anderen Tools, die projektbezogene Kontextdateien lesen. Skills sind auf Transportebene framework-agnostisch — der Inhalt bestimmt, für welche Sprache oder welches Framework er gilt.

Data sourced from the skills.sh registry and GitHub. Install counts and security audits are updated regularly.

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