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Category: AI Agent CapabilitiesNo API key required

asset-forge

Creates new skills, rules, and MCPs for ai-driven-dev-system or project-specific use. Use when user requests a new reusable component, wants to add coding standards, needs to document a workflow, or asks to create a skill or rule.

personAuthor: jakexiaohubgithub

Asset Forge

Creates assets following system standards. Works for both global (ai-driven-dev-system) and project-specific assets.

Before Creating: Gather Requirements

1. First: Infer from Context

ALWAYS try to infer information from:

  • Current conversation history
  • User's recent corrections or feedback
  • Open files and code context
  • Previous agent responses

2. Only Ask if Missing

If you cannot infer the following, then ask:

  1. Asset type: skill, rule, or MCP?
  2. Purpose: What should this asset do?
  3. Scope: Always apply, or file-specific? (for rules)

Principle: The user's time is valuable. Extract maximum info from context before asking questions.

Deciding Where to Create

Decision Flow

  1. Is this reusable across multiple projects?

    • YES → Create in ai-driven-dev-system (global) via PR
    • NO → Create in current project's .cursor/
  2. Is this specific to this codebase?

    • YES → Create in project's .cursor/skills/ or .cursor/rules/
    • NO → Create in global system

Location Summary

| Scope | Skills | Rules | | :------ | :----------------------------- | :---------------------------- | | Global | ai-driven-dev-system/skills/ | ai-driven-dev-system/rules/ | | Project | .cursor/skills/ | .cursor/rules/ |

Note: Global assets require PR workflow (use system-gardener). Project assets can be committed directly.

Creating Skills

Directory Structure

skills/[skill-name]/
├── SKILL.md              # Required
├── reference.md          # Optional - detailed docs
├── scripts/              # Optional - utilities
└── tests/                # Required - validation and unit tests

SKILL.md Template

---
name: skill-name
description: Third-person description. Include WHAT it does and WHEN to use it.
---

# Skill Title

Brief overview.

## Before You Begin

Prerequisites or requirements.

## Instructions

Step-by-step guidance.

## Examples

Concrete examples with input/output.

## Checklist

- [ ] Verification items

Frontmatter Rules

  • name: max 64 chars, lowercase, hyphens only (e.g., code-review)
  • description: max 1024 chars, third person, include trigger terms

Description Best Practices

Write in third person (injected into system prompt):

  • ✅ "Reviews code for quality and security issues. Use when..."
  • ❌ "I can help you review code"

Include both WHAT and WHEN:

  • WHAT: Specific capabilities
  • WHEN: Trigger scenarios

Testing Requirements

  1. Create tests/ directory.
  2. Create [skill-name].test.ts using assets/test.template.ts.
  3. If scripts/ exist: Add dedicated unit tests for logic.
  4. Run pnpm test to verify compliance.

Creating Rules

Rule File Format

---
description: What the rule does
globs: **/*.ts
alwaysApply: false
---

# Rule Title

Guidelines and examples.

## Correct

\`\`\`typescript
// ✅ GOOD
example
\`\`\`

## Incorrect

\`\`\`typescript
// ❌ BAD
example
\`\`\`

Frontmatter Fields

| Field | Type | Description | | :------------ | :------ | :-------------------------- | | description | string | Shown in rule picker | | globs | string | File pattern for activation | | alwaysApply | boolean | If true, always active |

Configuration Options

  • alwaysApply: true → Universal, applies to every session
  • globs: "**/*.ts" → Applies when matching files are open

Core Principles

  1. Concise: Under 500 lines, only add what agent doesn't know.
  2. Progressive disclosure: Essential in main file, details in references.
    • Agent Best Practice: Use npx tsx scripts/extract-frontmatter.ts (or pnpm tsx ...) to inspect skills before reading full files.
  3. Concrete examples: Show don't tell.
  4. One concern per asset: Split large topics.

CRITICAL: Git Protocol for Global Assets

When creating assets in ai-driven-dev-system:

  1. NEVER create directly - Use system-gardener skill
  2. Create in feature branch
  3. Submit PR for review
  4. Wait for human approval

For project assets, commit directly to project repo.

Checklist Before Creating

  • [ ] Determined scope (global vs project)
  • [ ] Correct location and format
  • [ ] Description is specific with trigger terms
  • [ ] Content under 500 lines
  • [ ] Includes concrete examples
  • [ ] Created unit tests in tests/
  • [ ] Verified with pnpm test
  • [ ] If global: using PR workflow