use agent_settings::AgentProfileId;use anyhow::Result;use assistant_tools::GrepToolInput;use async_trait::async_trait; use crate::example::{Example, ExampleContext, ExampleMetadata}; pub struct GrepParamsEscapementExample; /* This eval checks that the model doesn't use HTML escapement for characters like `<` and`>` in tool parameters.                       original     +system_prompt change    +tool description  claude-opus-4        89%          92%                     97%+  claude-sonnet-4      100%  gpt-4.1-mini         100%  gemini-2.5-pro                    98% */ #[async_trait(?Send)]impl Example for GrepParamsEscapementExample {    fn meta(&self) -> ExampleMetadata {        ExampleMetadata {            name: "grep_params_escapement".to_string(),            url: "https://github.com/octocat/hello-world".to_string(),            revision: "7fd1a60b01f91b314f59955a4e4d4e80d8edf11d".to_string(),            language_server: None,            max_assertions: Some(1),            profile_id: AgentProfileId::default(),            existing_thread_json: None,            max_turns: Some(2),        }    }     async fn conversation(&self, cx: &mut ExampleContext) -> Result<()> {        // cx.push_user_message("How does the precedence/specificity work with Keymap contexts? I am seeing that `MessageEditor > Editor` is lower precendence than `Editor` which is surprising to me, but might be how it works");        cx.push_user_message("Search for files containing the characters `>` or `<`");        let response = cx.run_turns(2).await?;        let grep_input = response            .find_tool_call("grep")            .and_then(|tool_use| tool_use.parse_input::<GrepToolInput>().ok());         cx.assert_some(grep_input.as_ref(), "`grep` tool should be called")?;         cx.assert(            !contains_html_entities(&grep_input.unwrap().regex),            "Tool parameters should not be escaped",        )    }} fn contains_html_entities(pattern: &str) -> bool {    regex::Regex::new(r"&[a-zA-Z]+;|&#[0-9]+;|&#x[0-9a-fA-F]+;")        .unwrap()        .is_match(pattern)}