huskies: merge 493_bug_story_dependency_chain_not_firing_due_to_front_matter_format_issues

server/src/http/mcp/mod.rs

@@ -339,6 +339,11 @@ fn handle_tools_list(id: Option<Value>) -> JsonRpcResponse {
                                 "items": { "type": "string" },
                                 "description": "Optional list of acceptance criteria"
                             },
+                            "depends_on": {
+                                "type": "array",
+                                "items": { "type": "integer" },
+                                "description": "Optional list of story IDs this story depends on; written as a YAML inline sequence in front matter"
+                            },
                             "commit": {
                                 "type": "boolean",
                                 "description": "If true, git-add and git-commit the new story file to the current branch"

server/src/http/mcp/story_tools.rs

@@ -23,6 +23,9 @@ pub(super) fn tool_create_story(args: &Value, ctx: &AppContext) -> Result<String
     let acceptance_criteria: Option<Vec<String>> = args
         .get("acceptance_criteria")
         .and_then(|v| serde_json::from_value(v.clone()).ok());
+    let depends_on: Option<Vec<u32>> = args
+        .get("depends_on")
+        .and_then(|v| serde_json::from_value(v.clone()).ok());
     // Spike 61: write the file only — the filesystem watcher detects the new
     // .md file in work/1_backlog/ and auto-commits with a deterministic message.
     let commit = false;
@@ -33,6 +36,7 @@ pub(super) fn tool_create_story(args: &Value, ctx: &AppContext) -> Result<String
         name,
         user_story,
         acceptance_criteria.as_deref(),
+        depends_on.as_deref(),
         commit,
     )?;
 

server/src/http/workflow/story_ops.rs

@@ -14,6 +14,7 @@ pub fn create_story_file(
     name: &str,
     user_story: Option<&str>,
     acceptance_criteria: Option<&[String]>,
+    depends_on: Option<&[u32]>,
     commit: bool,
 ) -> Result<String, String> {
     let story_number = next_item_number(root)?;
@@ -42,6 +43,10 @@ pub fn create_story_file(
     let mut content = String::new();
     content.push_str("---\n");
     content.push_str(&format!("name: \"{}\"\n", name.replace('"', "\\\"")));
+    if let Some(deps) = depends_on.filter(|d| !d.is_empty()) {
+        let nums: Vec<String> = deps.iter().map(|n| n.to_string()).collect();
+        content.push_str(&format!("depends_on: [{}]\n", nums.join(", ")));
+    }
     content.push_str("---\n\n");
     content.push_str(&format!("# Story {story_number}: {name}\n\n"));
 
@@ -185,12 +190,16 @@ pub fn add_criterion_to_file(
 
 /// Encode a string value as a YAML scalar.
 ///
-/// Booleans (`true`/`false`) and integers are written as native YAML types (unquoted).
-/// Everything else is written as a quoted string to avoid ambiguity.
+/// Booleans (`true`/`false`), integers, and inline sequences (`[...]`) are
+/// written as native YAML types (unquoted).  Everything else is written as a
+/// quoted string to avoid ambiguity.
 fn yaml_encode_scalar(value: &str) -> String {
     match value {
         "true" | "false" => value.to_string(),
         s if s.parse::<i64>().is_ok() => s.to_string(),
+        // YAML inline sequences like [490] or [490, 491] — write unquoted so
+        // serde_yaml can deserialise them as Vec<u32>.
+        s if s.starts_with('[') && s.ends_with(']') => s.to_string(),
         s => format!("\"{}\"", s.replace('"', "\\\"").replace('\n', " ").replace('\r', "")),
     }
 }
@@ -321,7 +330,7 @@ mod tests {
     fn create_story_with_colon_in_name_produces_valid_yaml() {
         let tmp = tempfile::tempdir().unwrap();
         let name = "Server-owned agent completion: remove report_completion dependency";
-        let result = create_story_file(tmp.path(), name, None, None, false);
+        let result = create_story_file(tmp.path(), name, None, None, None, false);
         assert!(result.is_ok(), "create_story_file failed: {result:?}");
 
         let backlog = tmp.path().join(".huskies/work/1_backlog");
@@ -652,4 +661,73 @@ mod tests {
         let meta = parse_front_matter(&contents).expect("front matter should parse");
         assert_eq!(meta.name.as_deref(), Some("My Story"), "name preserved after writing bool field");
     }
+
+    // ── Bug 493 regression tests ──────────────────────────────────────────────
+
+    /// Bug 493 fix 1: update_story with depends_on as a string like "[490]" must
+    /// write the value unquoted so serde_yaml can deserialise it as Vec<u32>.
+    #[test]
+    fn update_story_depends_on_stored_as_yaml_array_not_quoted_string() {
+        let tmp = tempfile::tempdir().unwrap();
+        let current = tmp.path().join(".huskies/work/2_current");
+        fs::create_dir_all(&current).unwrap();
+        let filepath = current.join("30_test.md");
+        fs::write(&filepath, "---\nname: T\n---\n\nNo sections.\n").unwrap();
+
+        let mut fields = HashMap::new();
+        fields.insert("depends_on".to_string(), "[490]".to_string());
+        update_story_in_file(tmp.path(), "30_test", None, None, Some(&fields)).unwrap();
+
+        let result = fs::read_to_string(&filepath).unwrap();
+        assert!(result.contains("depends_on: [490]"), "should be unquoted array: {result}");
+        assert!(!result.contains("depends_on: \"[490]\""), "must not be quoted: {result}");
+
+        // Must round-trip through the parser correctly.
+        let meta = parse_front_matter(&result).expect("front matter should parse");
+        assert_eq!(meta.depends_on, Some(vec![490]));
+    }
+
+    /// Bug 493 fix 2: create_story_file with depends_on must write it as a
+    /// YAML front matter array, not as an acceptance criterion checkbox.
+    #[test]
+    fn create_story_with_depends_on_writes_front_matter_array() {
+        let tmp = tempfile::tempdir().unwrap();
+        let story_id = create_story_file(
+            tmp.path(),
+            "Dependent Story",
+            None,
+            None,
+            Some(&[489]),
+            false,
+        )
+        .unwrap();
+
+        let backlog = tmp.path().join(".huskies/work/1_backlog");
+        let contents = fs::read_to_string(backlog.join(format!("{story_id}.md"))).unwrap();
+
+        // depends_on must be in front matter, not in AC text.
+        assert!(contents.contains("depends_on: [489]"), "missing front matter: {contents}");
+        assert!(!contents.contains("- [ ] depends_on"), "must not appear as checkbox: {contents}");
+
+        let meta = parse_front_matter(&contents).expect("front matter should parse");
+        assert_eq!(meta.depends_on, Some(vec![489]));
+    }
+
+    /// Multi-element depends_on array round-trips correctly.
+    #[test]
+    fn update_story_depends_on_multi_element_array() {
+        let tmp = tempfile::tempdir().unwrap();
+        let current = tmp.path().join(".huskies/work/2_current");
+        fs::create_dir_all(&current).unwrap();
+        let filepath = current.join("31_test.md");
+        fs::write(&filepath, "---\nname: T\n---\n\nNo sections.\n").unwrap();
+
+        let mut fields = HashMap::new();
+        fields.insert("depends_on".to_string(), "[490, 491]".to_string());
+        update_story_in_file(tmp.path(), "31_test", None, None, Some(&fields)).unwrap();
+
+        let result = fs::read_to_string(&filepath).unwrap();
+        let meta = parse_front_matter(&result).expect("front matter should parse");
+        assert_eq!(meta.depends_on, Some(vec![490, 491]));
+    }
 }