rust-skill-creator

by actionbook

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SKILL.md About

---
name: rust-skill-creator
description: "Use when creating skills for Rust crates or std library documentation. Keywords: create rust skill, create crate skill, create std skill, 创建 rust skill, 创建 crate skill, 创建 std skill, 动态 rust skill, 动态 crate skill, skill for tokio, skill for serde, skill for axum, generate rust skill, rust 技能, crate 技能, 从文档创建skill, from docs create skill"
argument-hint: "<crate_name|std::module>"
context: fork
agent: general-purpose
---

# Rust Skill Creator

> **Version:** 2.1.0 | **Last Updated:** 2025-01-27
>
> Create dynamic skills for Rust crates and std library documentation.

## When to Use

This skill handles requests to create skills for:
- Third-party crates (tokio, serde, axum, etc.)
- Rust standard library (std::sync, std::marker, etc.)
- Any Rust documentation URL

## Execution Mode Detection

**CRITICAL: Check if related commands/skills are available.**

This skill relies on:
- `/create-llms-for-skills` command
- `/create-skills-via-llms` command

---

## Agent Mode (Plugin Install)

**When the commands above are available (full plugin installation):**

### Workflow

#### 1. Identify the Target

| User Request | Target Type | URL Pattern |
|--------------|-------------|-------------|
| "create tokio skill" | Third-party crate | `docs.rs/tokio/latest/tokio/` |
| "create Send trait skill" | Std library | `doc.rust-lang.org/std/marker/trait.Send.html` |
| "create skill from URL" + URL | Custom URL | User-provided URL |

#### 2. Execute the Command

Use the `/create-llms-for-skills` command:

```
/create-llms-for-skills <url> [requirements]
```

**Examples:**

```bash
# For third-party crate
/create-llms-for-skills https://docs.rs/tokio/latest/tokio/

# For std library
/create-llms-for-skills https://doc.rust-lang.org/std/marker/trait.Send.html

# With specific requirements
/create-llms-for-skills https://docs.rs/axum/latest/axum/ "Focus on routing and extractors"
```

#### 3. Follow-up with Skill Creation

After llms.txt is generated, use:

```
/create-skills-via-llms <crate_name> <llms_path> [version]
```

---

## Inline Mode (Skills-only Install)

**When the commands above are NOT available, create skills manually:**

### Step 1: Identify Target and Construct URL

| Target | URL Template |
|--------|--------------|
| Crate overview | `https://docs.rs/{crate}/latest/{crate}/` |
| Crate module | `https://docs.rs/{crate}/latest/{crate}/{module}/` |
| Std trait | `https://doc.rust-lang.org/std/{module}/trait.{Name}.html` |
| Std struct | `https://doc.rust-lang.org/std/{module}/struct.{Name}.html` |
| Std module | `https://doc.rust-lang.org/std/{module}/index.html` |

### Step 2: Fetch Documentation

```bash
# Using agent-browser CLI
agent-browser open "<documentation_url>"
agent-browser get text ".docblock"
agent-browser close
```

**Or with WebFetch fallback:**
```
WebFetch("<documentation_url>", "Extract API documentation including types, functions, and examples")
```

### Step 3: Create Skill Directory

```bash
mkdir -p ~/.claude/skills/{crate_name}
mkdir -p ~/.claude/skills/{crate_name}/references
```

### Step 4: Generate SKILL.md

Create `~/.claude/skills/{crate_name}/SKILL.md` with this template:

```markdown
---
name: {crate_name}
description: "Documentation for {crate_name} crate. Keywords: {keywords}"
---

# {Crate Name}

> **Version:** {version} | **Source:** docs.rs

## Overview

{Brief description from documentation}

## Key Types

### {Type1}
{Description and usage}

### {Type2}
{Description and usage}

## Common Patterns

{Usage patterns extracted from documentation}

## Examples

```rust
{Example code from documentation}
```

## Documentation

- `./references/overview.md` - Main overview
- `./references/{module}.md` - Module documentation

## Links

- [docs.rs](https://docs.rs/{crate})
- [crates.io](https://crates.io/crates/{crate})
```

### Step 5: Generate Reference Files

For each major module or type, create a reference file:

```bash
# Fetch and save module documentation
agent-browser open "https://docs.rs/{crate}/latest/{crate}/{module}/"
agent-browser get text ".docblock" > ~/.claude/skills/{crate_name}/references/{module}.md
agent-browser close
```

### Step 6: Verify Skill

```bash
# Check skill structure
ls -la ~/.claude/skills/{crate_name}/
cat ~/.claude/skills/{crate_name}/SKILL.md
```

---

## URL Construction Helper

## Common Std Library Paths

| Item | Path |
|------|------|
| Send, Sync, Copy, Clone | `std/marker/trait.{Name}.html` |
| Arc, Mutex, RwLock | `std/sync/struct.{Name}.html` |
| Rc, Weak | `std/rc/struct.{Name}.html` |
| RefCell, Cell | `std/cell/struct.{Name}.html` |
| Box | `std/boxed/struct.Box.html` |
| Vec | `std/vec/struct.Vec.html` |
| String | `std/string/struct.String.html` |
| Option | `std/option/enum.Option.html` |
| Result | `std/result/enum.Result.html` |

---

## Example Interactions

### Example 1: Create Crate Skill (Agent Mode)

```
User: "Create a dynamic skill for tokio"

Claude:
1. Identify: Third-party crate "tokio"
2. Execute: /create-llms-for-skills https://docs.rs/tokio/latest/tokio/
3. Wait for llms.txt generation
4. Execute: /create-skills-via-llms tokio ~/tmp/{timestamp}-tokio-llms.txt
```

### Example 2: Create Crate Skill (Inline Mode)

```
User: "Create a dynamic skill for tokio"

Claude:
1. Identify: Third-party crate "tokio"
2. Fetch: agent-browser open "https://docs.rs/tokio/latest/tokio/"
3. Extract documentation
4. Create: ~/.claude/skills/tokio/SKILL.md
5. Create: ~/.claude/skills/tokio/references/
6. Save reference files for key modules (sync, task, runtime, etc.)
```

### Example 3: Create Std Library Skill

```
User: "Create a skill for Send and Sync traits"

Claude:
1. Identify: Std library traits
2. (Agent Mode) Execute: /create-llms-for-skills https://doc.rust-lang.org/std/marker/trait.Send.html https://doc.rust-lang.org/std/marker/trait.Sync.html
   (Inline Mode) Fetch each URL, create skill manually
3. Complete skill creation
```

---

## DO NOT

- Use `best-skill-creator` for Rust-related skill creation
- Guess documentation URLs without verification
- Skip documentation fetching step

## Output Location

All generated skills are saved to: `~/.claude/skills/`

## Error Handling

| Error | Cause | Solution |
|-------|-------|----------|
| Commands not found | Skills-only install | Use inline mode |
| URL not found | Invalid crate/module | Verify crate exists on crates.io |
| Empty documentation | API changed | Use alternative selectors |
| Permission denied | Directory issue | Check ~/.claude/skills/ permissions |