use agent::GrepToolInput;use agent_settings::AgentProfileId;use anyhow::Result;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-5-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<()> {        let response = cx            .prompt_with_max_turns("Search for files containing the characters `>` or `<`", 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)}