fix: sanitize streamable HTTP extension names derived from URLs (#7740)

Signed-off-by: Adrian Cole <adrian@tetrate.io>

crates/goose-cli/src/session/mod.rs

@@ -34,6 +34,7 @@ use completion::GooseCompleter;
 use goose::agents::extension::{Envs, ExtensionConfig, PLATFORM_EXTENSIONS};
 use goose::agents::types::RetryConfig;
 use goose::agents::{Agent, SessionConfig, COMPACT_TRIGGERS};
+use goose::config::extensions::name_to_key;
 use goose::config::{Config, GooseMode};
 use input::InputResult;
 use rmcp::model::PromptMessage;
@@ -327,7 +328,7 @@ impl CliSession {
                     s.push('_');
                     s.push_str(path);
                 }
-                s
+                name_to_key(&s)
             })
             .filter(|s| !s.is_empty())
             .unwrap_or_else(|| "unnamed".to_string());
@@ -2030,7 +2031,7 @@ mod tests {
     #[test_case(
         "https://mcp.kiwi.com", 300,
         ExtensionConfig::StreamableHttp {
-            name: "mcp.kiwi.com".into(),
+            name: "mcp_kiwi_com".into(),
             uri: "https://mcp.kiwi.com".into(),
             envs: Envs::default(),
             env_keys: vec![],