diff --git a/server/src/http/mcp/mod.rs b/server/src/http/mcp/mod.rs
index 76beb1f..ddb9ed2 100644
--- a/server/src/http/mcp/mod.rs
+++ b/server/src/http/mcp/mod.rs
@@ -15,6 +15,7 @@ pub mod merge_tools;
 pub mod qa_tools;
 pub mod shell_tools;
 pub mod story_tools;
+pub mod whatsup_tools;
 
 /// Returns true when the Accept header includes text/event-stream.
 fn wants_sse(req: &Request) -> bool {
@@ -1121,6 +1122,20 @@ fn handle_tools_list(id: Option<Value>) -> JsonRpcResponse {
                         },
                         "required": ["worktree_path"]
                     }
+                },
+                {
+                    "name": "whatsup",
+                    "description": "Get a full triage dump for an in-progress story: front matter, AC checklist, active worktree/branch, git diff --stat since master, last 5 commits, and last 20 lines of the most recent agent log. Returns a clear error if the story is not in work/2_current/.",
+                    "inputSchema": {
+                        "type": "object",
+                        "properties": {
+                            "story_id": {
+                                "type": "string",
+                                "description": "Story identifier (filename stem, e.g. '42_story_my_feature')"
+                            }
+                        },
+                        "required": ["story_id"]
+                    }
                 }
             ]
         }),
@@ -1209,6 +1224,8 @@ async fn handle_tools_call(
         "git_add" => git_tools::tool_git_add(&args, ctx).await,
         "git_commit" => git_tools::tool_git_commit(&args, ctx).await,
         "git_log" => git_tools::tool_git_log(&args, ctx).await,
+        // Story triage
+        "whatsup" => whatsup_tools::tool_whatsup(&args, ctx).await,
         _ => Err(format!("Unknown tool: {tool_name}")),
     };
 
@@ -1324,7 +1341,8 @@ mod tests {
         assert!(names.contains(&"git_add"));
         assert!(names.contains(&"git_commit"));
         assert!(names.contains(&"git_log"));
-        assert_eq!(tools.len(), 48);
+        assert!(names.contains(&"whatsup"));
+        assert_eq!(tools.len(), 49);
     }
 
     #[test]
diff --git a/server/src/http/mcp/whatsup_tools.rs b/server/src/http/mcp/whatsup_tools.rs
new file mode 100644
index 0000000..5413603
--- /dev/null
+++ b/server/src/http/mcp/whatsup_tools.rs
@@ -0,0 +1,364 @@
+use crate::http::context::AppContext;
+use serde_json::{Value, json};
+use std::fs;
+use std::path::{Path, PathBuf};
+
+/// Parse all AC items from a story file, returning (text, is_checked) pairs.
+fn parse_ac_items(contents: &str) -> Vec<(String, bool)> {
+    let mut in_ac_section = false;
+    let mut items = Vec::new();
+
+    for line in contents.lines() {
+        let trimmed = line.trim();
+        if trimmed == "## Acceptance Criteria" {
+            in_ac_section = true;
+            continue;
+        }
+        // Stop at the next heading
+        if in_ac_section && trimmed.starts_with("## ") {
+            break;
+        }
+        if in_ac_section {
+            if let Some(rest) = trimmed.strip_prefix("- [x] ").or(trimmed.strip_prefix("- [X] ")) {
+                items.push((rest.to_string(), true));
+            } else if let Some(rest) = trimmed.strip_prefix("- [ ] ") {
+                items.push((rest.to_string(), false));
+            }
+        }
+    }
+
+    items
+}
+
+/// Find the most recent log file for any agent under `.storkit/logs/{story_id}/`.
+fn find_most_recent_log(project_root: &Path, story_id: &str) -> Option<PathBuf> {
+    let dir = project_root
+        .join(".storkit")
+        .join("logs")
+        .join(story_id);
+
+    if !dir.is_dir() {
+        return None;
+    }
+
+    let mut best: Option<(PathBuf, std::time::SystemTime)> = None;
+
+    let entries = fs::read_dir(&dir).ok()?;
+    for entry in entries.flatten() {
+        let path = entry.path();
+        let name = match path.file_name().and_then(|n| n.to_str()) {
+            Some(n) => n.to_string(),
+            None => continue,
+        };
+        if !name.ends_with(".log") {
+            continue;
+        }
+        let modified = match entry.metadata().and_then(|m| m.modified()) {
+            Ok(t) => t,
+            Err(_) => continue,
+        };
+        if best.as_ref().is_none_or(|(_, t)| modified > *t) {
+            best = Some((path, modified));
+        }
+    }
+
+    best.map(|(p, _)| p)
+}
+
+/// Return the last N raw lines from a file.
+fn last_n_lines(path: &Path, n: usize) -> Result<Vec<String>, String> {
+    let content =
+        fs::read_to_string(path).map_err(|e| format!("Failed to read log file: {e}"))?;
+    let lines: Vec<String> = content
+        .lines()
+        .rev()
+        .take(n)
+        .map(|l| l.to_string())
+        .collect::<Vec<_>>()
+        .into_iter()
+        .rev()
+        .collect();
+    Ok(lines)
+}
+
+/// Run `git diff --stat {base}...HEAD` in the worktree.
+async fn git_diff_stat(worktree: &Path, base: &str) -> Option<String> {
+    let dir = worktree.to_path_buf();
+    let base_arg = format!("{base}...HEAD");
+    tokio::task::spawn_blocking(move || {
+        let output = std::process::Command::new("git")
+            .args(["diff", "--stat", &base_arg])
+            .current_dir(&dir)
+            .output()
+            .ok()?;
+        if output.status.success() {
+            Some(String::from_utf8_lossy(&output.stdout).trim().to_string())
+        } else {
+            None
+        }
+    })
+    .await
+    .ok()
+    .flatten()
+}
+
+/// Return the last N commit messages on the current branch relative to base.
+async fn git_log_commits(worktree: &Path, base: &str, count: usize) -> Option<Vec<String>> {
+    let dir = worktree.to_path_buf();
+    let range = format!("{base}..HEAD");
+    let count_str = count.to_string();
+    tokio::task::spawn_blocking(move || {
+        let output = std::process::Command::new("git")
+            .args(["log", &range, "--oneline", &format!("-{count_str}")])
+            .current_dir(&dir)
+            .output()
+            .ok()?;
+        if output.status.success() {
+            let lines: Vec<String> = String::from_utf8(output.stdout)
+                .ok()?
+                .lines()
+                .filter(|l| !l.is_empty())
+                .map(|l| l.to_string())
+                .collect();
+            Some(lines)
+        } else {
+            None
+        }
+    })
+    .await
+    .ok()
+    .flatten()
+}
+
+/// Return the active branch name for the given directory.
+async fn git_branch(dir: &Path) -> Option<String> {
+    let dir = dir.to_path_buf();
+    tokio::task::spawn_blocking(move || {
+        let output = std::process::Command::new("git")
+            .args(["rev-parse", "--abbrev-ref", "HEAD"])
+            .current_dir(&dir)
+            .output()
+            .ok()?;
+        if output.status.success() {
+            Some(String::from_utf8_lossy(&output.stdout).trim().to_string())
+        } else {
+            None
+        }
+    })
+    .await
+    .ok()
+    .flatten()
+}
+
+pub(super) async fn tool_whatsup(args: &Value, ctx: &AppContext) -> Result<String, String> {
+    let story_id = args
+        .get("story_id")
+        .and_then(|v| v.as_str())
+        .ok_or("Missing required argument: story_id")?;
+
+    let root = ctx.state.get_project_root()?;
+    let current_dir = root.join(".storkit").join("work").join("2_current");
+    let filepath = current_dir.join(format!("{story_id}.md"));
+
+    if !filepath.exists() {
+        return Err(format!(
+            "Story '{story_id}' not found in work/2_current/. Check the story_id and ensure it is in the current stage."
+        ));
+    }
+
+    let contents =
+        fs::read_to_string(&filepath).map_err(|e| format!("Failed to read story file: {e}"))?;
+
+    // --- Front matter ---
+    let mut front_matter = serde_json::Map::new();
+    if let Ok(meta) = crate::io::story_metadata::parse_front_matter(&contents) {
+        if let Some(name) = &meta.name {
+            front_matter.insert("name".to_string(), json!(name));
+        }
+        if let Some(agent) = &meta.agent {
+            front_matter.insert("agent".to_string(), json!(agent));
+        }
+        if let Some(true) = meta.blocked {
+            front_matter.insert("blocked".to_string(), json!(true));
+        }
+        if let Some(qa) = &meta.qa {
+            front_matter.insert("qa".to_string(), json!(qa.as_str()));
+        }
+        if let Some(rc) = meta.retry_count
+            && rc > 0
+        {
+            front_matter.insert("retry_count".to_string(), json!(rc));
+        }
+        if let Some(mf) = &meta.merge_failure {
+            front_matter.insert("merge_failure".to_string(), json!(mf));
+        }
+        if let Some(rh) = meta.review_hold
+            && rh
+        {
+            front_matter.insert("review_hold".to_string(), json!(rh));
+        }
+    }
+
+    // --- AC checklist ---
+    let ac_items: Vec<Value> = parse_ac_items(&contents)
+        .into_iter()
+        .map(|(text, checked)| json!({ "text": text, "checked": checked }))
+        .collect();
+
+    // --- Worktree ---
+    let worktree_path = root.join(".storkit").join("worktrees").join(story_id);
+    let (_, worktree_info) = if worktree_path.is_dir() {
+        let branch = git_branch(&worktree_path).await;
+        (
+            branch.clone(),
+            Some(json!({
+                "path": worktree_path.to_string_lossy(),
+                "branch": branch,
+            })),
+        )
+    } else {
+        (None, None)
+    };
+
+    // --- Git diff stat ---
+    let diff_stat = if worktree_path.is_dir() {
+        git_diff_stat(&worktree_path, "master").await
+    } else {
+        None
+    };
+
+    // --- Last 5 commits ---
+    let commits = if worktree_path.is_dir() {
+        git_log_commits(&worktree_path, "master", 5).await
+    } else {
+        None
+    };
+
+    // --- Most recent agent log (last 20 lines) ---
+    let agent_log = match find_most_recent_log(&root, story_id) {
+        Some(log_path) => {
+            let filename = log_path
+                .file_name()
+                .and_then(|n| n.to_str())
+                .unwrap_or("")
+                .to_string();
+            match last_n_lines(&log_path, 20) {
+                Ok(lines) => Some(json!({
+                    "file": filename,
+                    "lines": lines,
+                })),
+                Err(_) => None,
+            }
+        }
+        None => None,
+    };
+
+    let result = json!({
+        "story_id": story_id,
+        "front_matter": front_matter,
+        "acceptance_criteria": ac_items,
+        "worktree": worktree_info,
+        "git_diff_stat": diff_stat,
+        "commits": commits,
+        "agent_log": agent_log,
+    });
+
+    serde_json::to_string_pretty(&result).map_err(|e| format!("Serialization error: {e}"))
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use tempfile::tempdir;
+
+    #[test]
+    fn parse_ac_items_returns_checked_and_unchecked() {
+        let content = "---\nname: test\n---\n\n## Acceptance Criteria\n\n- [ ] item one\n- [x] item two\n- [X] item three\n\n## Out of Scope\n\n- [ ] not an ac\n";
+        let items = parse_ac_items(content);
+        assert_eq!(items.len(), 3);
+        assert_eq!(items[0], ("item one".to_string(), false));
+        assert_eq!(items[1], ("item two".to_string(), true));
+        assert_eq!(items[2], ("item three".to_string(), true));
+    }
+
+    #[test]
+    fn parse_ac_items_empty_when_no_section() {
+        let content = "---\nname: test\n---\n\nNo AC section here.\n";
+        let items = parse_ac_items(content);
+        assert!(items.is_empty());
+    }
+
+    #[test]
+    fn find_most_recent_log_returns_none_for_missing_dir() {
+        let tmp = tempdir().unwrap();
+        let result = find_most_recent_log(tmp.path(), "nonexistent_story");
+        assert!(result.is_none());
+    }
+
+    #[test]
+    fn find_most_recent_log_returns_newest_file() {
+        let tmp = tempdir().unwrap();
+        let log_dir = tmp
+            .path()
+            .join(".storkit")
+            .join("logs")
+            .join("42_story_foo");
+        fs::create_dir_all(&log_dir).unwrap();
+
+        let old_path = log_dir.join("coder-1-sess-old.log");
+        fs::write(&old_path, "old content").unwrap();
+
+        // Ensure different mtime
+        std::thread::sleep(std::time::Duration::from_millis(50));
+
+        let new_path = log_dir.join("coder-1-sess-new.log");
+        fs::write(&new_path, "new content").unwrap();
+
+        let result = find_most_recent_log(tmp.path(), "42_story_foo").unwrap();
+        assert!(
+            result.to_string_lossy().contains("sess-new"),
+            "Expected newest file, got: {}",
+            result.display()
+        );
+    }
+
+    #[tokio::test]
+    async fn tool_whatsup_returns_error_for_missing_story() {
+        let tmp = tempdir().unwrap();
+        let ctx = crate::http::context::AppContext::new_test(tmp.path().to_path_buf());
+        let result = tool_whatsup(&json!({"story_id": "999_story_nonexistent"}), &ctx).await;
+        assert!(result.is_err());
+        assert!(result.unwrap_err().contains("not found in work/2_current/"));
+    }
+
+    #[tokio::test]
+    async fn tool_whatsup_returns_story_data() {
+        let tmp = tempdir().unwrap();
+        let current_dir = tmp
+            .path()
+            .join(".storkit")
+            .join("work")
+            .join("2_current");
+        fs::create_dir_all(&current_dir).unwrap();
+
+        let story_content = "---\nname: My Test Story\nagent: coder-1\n---\n\n## Acceptance Criteria\n\n- [ ] First criterion\n- [x] Second criterion\n\n## Out of Scope\n\n- nothing\n";
+        fs::write(current_dir.join("42_story_test.md"), story_content).unwrap();
+
+        let ctx = crate::http::context::AppContext::new_test(tmp.path().to_path_buf());
+        let result = tool_whatsup(&json!({"story_id": "42_story_test"}), &ctx)
+            .await
+            .unwrap();
+        let parsed: serde_json::Value = serde_json::from_str(&result).unwrap();
+
+        assert_eq!(parsed["story_id"], "42_story_test");
+        assert_eq!(parsed["front_matter"]["name"], "My Test Story");
+        assert_eq!(parsed["front_matter"]["agent"], "coder-1");
+
+        let ac = parsed["acceptance_criteria"].as_array().unwrap();
+        assert_eq!(ac.len(), 2);
+        assert_eq!(ac[0]["text"], "First criterion");
+        assert_eq!(ac[0]["checked"], false);
+        assert_eq!(ac[1]["text"], "Second criterion");
+        assert_eq!(ac[1]["checked"], true);
+    }
+}