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:
/create-llms-for-skills https://docs.rs/tokio/latest/tokio/
/create-llms-for-skills https://doc.rust-lang.org/std/marker/trait.Send.html
/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
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
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:
---
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
### 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
ls -la ~/.claude/skills/{crate_name}/
cat ~/.claude/skills/{crate_name}/SKILL.md
URL Construction Helper
| 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 |
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 |
