feat: track coding agent shell usage (#3388)

https://github.com/user-attachments/assets/7868c7a4-6a91-4c93-ac6a-e8665cf1f799



## Checks
- [ ] I am happy for maintainers to push small adjustments to this PR,
to speed up the review cycle
- [ ] I have checked that there are no existing pull requests for the
same thing

1 files changed, 14 insertions, 0 deletions

diff --git a/crates/atuin-client/src/settings.rs b/crates/atuin-client/src/settings.rs
index 25c3bd65..5944de59 100644
--- a/crates/atuin-client/src/settings.rs
+++ b/crates/atuin-client/src/settings.rs
@@ -565,6 +565,13 @@ pub struct Search {
     /// The overall frecency score multiplier for the search index (default: 1.0).
     /// Applied after combining recency and frequency scores.
     pub frecency_score_multiplier: f64,
+
+    /// Filter history by author. Special values:
+    /// - `$all-user`: any author that is NOT a known AI agent (default)
+    /// - `$all-agent`: any known AI agent author
+    /// - literal strings like "ellie", "claude-code"
+    #[serde(default = "Search::default_authors")]
+    pub authors: Vec<String>,
 }
 
 #[derive(Clone, Debug, Deserialize, Serialize)]
@@ -844,10 +851,17 @@ impl Default for Search {
             recency_score_multiplier: 1.0,
             frequency_score_multiplier: 1.0,
             frecency_score_multiplier: 1.0,
+            authors: Self::default_authors(),
         }
     }
 }
 
+impl Search {
+    fn default_authors() -> Vec<String> {
+        vec![crate::history::AUTHOR_FILTER_ALL_USER.to_string()]
+    }
+}
+
 impl Default for Tmux {
     fn default() -> Self {
         Self {