llmkit/
alias.rs

1//! Model aliasing: map friendly names like "fast"/"smart" to concrete slugs.
2
3use std::collections::HashMap;
4
5/// Resolves model aliases to concrete model slugs.
6#[derive(Debug, Clone, Default)]
7pub struct ModelAliases {
8    map: HashMap<String, String>,
9}
10
11impl ModelAliases {
12    /// Empty alias table.
13    pub fn new() -> Self {
14        Self::default()
15    }
16
17    /// Sensible defaults: `fast` → gpt-4o-mini, `smart` → claude-sonnet-4-6,
18    /// `cheap` → gpt-4o-mini, `local` → llama3.1.
19    pub fn with_defaults() -> Self {
20        let mut m = Self::new();
21        m.set("fast", "gpt-4o-mini");
22        m.set("smart", "claude-sonnet-4-6");
23        m.set("cheap", "gpt-4o-mini");
24        m.set("local", "llama3.1");
25        m
26    }
27
28    /// Register an alias.
29    pub fn set(&mut self, alias: impl Into<String>, model: impl Into<String>) {
30        self.map.insert(alias.into(), model.into());
31    }
32
33    /// Resolve `name` to its concrete slug, or return `name` unchanged.
34    pub fn resolve<'a>(&'a self, name: &'a str) -> &'a str {
35        self.map.get(name).map(String::as_str).unwrap_or(name)
36    }
37}
38
39#[cfg(test)]
40mod tests {
41    use super::*;
42
43    #[test]
44    fn resolves_defaults_and_passthrough() {
45        let a = ModelAliases::with_defaults();
46        assert_eq!(a.resolve("fast"), "gpt-4o-mini");
47        assert_eq!(a.resolve("smart"), "claude-sonnet-4-6");
48        assert_eq!(a.resolve("gpt-4o"), "gpt-4o");
49    }
50}
llmkit/alias.rs

llmkit/
alias.rs
