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fix(skills): escape inlined skill XML content

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This commit is contained in:
Chummy 2026-02-20 01:02:46 +08:00
parent 8a4da141d6
commit d9a94fc763
2 changed files with 119 additions and 17 deletions
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65
src/channels/mod.rs
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@ -1101,12 +1101,13 @@ pub fn build_system_prompt(
prompt.push_str("## Available Skills\n\n");
prompt.push_str("<available_skills>\n");
for skill in skills {
let escaped_name = xml_escape(&skill.name);
let escaped_description = xml_escape(&skill.description);
let _ = writeln!(prompt, " <skill>");
let _ = writeln!(prompt, " <name>{}</name>", skill.name);
let _ = writeln!(prompt, " <name>{escaped_name}</name>");
let _ = writeln!(
prompt,
" <description>{}</description>",
skill.description
" <description>{escaped_description}</description>"
);
let location = skill.location.clone().unwrap_or_else(|| {
workspace_dir
@ -1114,14 +1115,18 @@ pub fn build_system_prompt(
.join(&skill.name)
.join("SKILL.md")
});
let _ = writeln!(prompt, " <location>{}</location>", location.display());
let escaped_location = xml_escape(&location.display().to_string());
let _ = writeln!(prompt, " <location>{escaped_location}</location>");
if !skill.tools.is_empty() {
let _ = writeln!(prompt, " <tools>");
for tool in &skill.tools {
let escaped_tool_name = xml_escape(&tool.name);
let escaped_tool_kind = xml_escape(&tool.kind);
let escaped_tool_description = xml_escape(&tool.description);
let _ = writeln!(
prompt,
" <tool name=\"{}\" kind=\"{}\">{}</tool>",
tool.name, tool.kind, tool.description
escaped_tool_name, escaped_tool_kind, escaped_tool_description
);
}
let _ = writeln!(prompt, " </tools>");
@ -1129,9 +1134,8 @@ pub fn build_system_prompt(
if !skill.prompts.is_empty() {
let _ = writeln!(prompt, " <instructions>");
for p in &skill.prompts {
prompt.push_str(" ");
prompt.push_str(p);
prompt.push('\n');
let escaped_prompt = xml_escape(p);
let _ = writeln!(prompt, " {escaped_prompt}");
}
let _ = writeln!(prompt, " </instructions>");
}
@ -1213,12 +1217,21 @@ pub fn build_system_prompt(
prompt.push_str("- If a tool output contains credentials, they have already been redacted — do not mention them.\n\n");
if prompt.is_empty() {
"You are ZeroClaw, a fast and efficient AI assistant built in Rust. Be helpful, concise, and direct.".to_string()
"You are ZeroClaw, a fast and efficient AI assistant built in Rust. Be helpful, concise, and direct."
.to_string()
} else {
prompt
}
}
fn xml_escape(raw: &str) -> String {
raw.replace('&', "&amp;")
.replace('<', "&lt;")
.replace('>', "&gt;")
.replace('"', "&quot;")
.replace('\'', "&apos;")
}
/// Inject a single workspace file into the prompt with truncation and missing-file markers.
fn inject_workspace_file(
prompt: &mut String,
@ -3322,6 +3335,40 @@ mod tests {
assert!(prompt.contains("<tools>"), "should have tools block");
}
#[test]
fn prompt_skills_escape_reserved_xml_chars() {
let ws = make_workspace();
let skills = vec![crate::skills::Skill {
name: "code<review>&".into(),
description: "Review \"unsafe\" and 'risky' bits".into(),
version: "1.0.0".into(),
author: None,
tags: vec![],
tools: vec![crate::skills::SkillTool {
name: "run\"linter\"".into(),
description: "Run <lint> & report".into(),
kind: "shell&exec".into(),
command: "cargo clippy".into(),
args: std::collections::HashMap::new(),
}],
prompts: vec!["Use <tool_call> and & keep output \"safe\"".into()],
location: None,
}];
let prompt = build_system_prompt(ws.path(), "model", &[], &skills, None, None);
assert!(prompt.contains("<name>code&lt;review&gt;&amp;</name>"));
assert!(prompt.contains(
"<description>Review &quot;unsafe&quot; and &apos;risky&apos; bits</description>"
));
assert!(
prompt.contains(
"<tool name=\"run&quot;linter&quot;\" kind=\"shell&amp;exec\">Run &lt;lint&gt; &amp; report</tool>"
)
);
assert!(prompt.contains("Use &lt;tool_call&gt; and &amp; keep output &quot;safe&quot;"));
}
#[test]
fn prompt_truncation() {
let ws = make_workspace();