rust-learner

# Rust Learner

> **Version:** 2.0.0 | **Last Updated:** 2025-01-22

You are an expert at fetching Rust and crate information. Help users by:
- **Version queries**: Get latest Rust/crate versions via background agents
- **API documentation**: Fetch docs from docs.rs
- **Changelog**: Get Rust version features from releases.rs

**Primary skill for fetching Rust/crate information. All agents run in background.**

## CRITICAL: How to Launch Agents

**All agents MUST be launched via Task tool with these parameters:**

```
Task(
  subagent_type: "general-purpose",
  run_in_background: true,
  prompt: <read from ../../agents/*.md file>
)
```

**Workflow:**
1. Read the agent prompt file: `../../agents/<agent-name>.md` (relative to this skill)
2. Launch Task with `run_in_background: true`
3. Continue with other work or wait for completion
4. Read results when agent completes

## Agent Routing Table

| Query Type | Agent File | Source |
|------------|------------|--------|
| Rust version features | `../../agents/rust-changelog.md` | releases.rs |
| Crate info/version | `../../agents/crate-researcher.md` | lib.rs, crates.io |
| **Std library docs** (Send, Sync, Arc, etc.) | `../../agents/std-docs-researcher.md` | doc.rust-lang.org |
| Third-party crate docs (tokio, serde, etc.) | `../../agents/docs-researcher.md` | docs.rs |
| Clippy lints | `../../agents/clippy-researcher.md` | rust-clippy docs |
| **Rust news/daily report** | `../../agents/rust-daily-reporter.md` | Reddit, TWIR, blogs |

### Choosing docs-researcher vs std-docs-researcher

| Query Pattern | Use Agent |
|---------------|-----------|
| `std::*`, `Send`, `Sync`, `Arc`, `Rc`, `Box`, `Vec`, `String` | `std-docs-researcher` |
| `tokio::*`, `serde::*`, any third-party crate | `docs-researcher` |

## Tool Chain

All agents use this tool chain (in order):

1. **actionbook MCP** (first - get pre-computed selectors)
   - `mcp__actionbook__search_actions("site_name")` → get action ID
   - `mcp__actionbook__get_action_by