mahbot 0.4.1

An autonomous agentic engineering system that manages software development through role separation, subagents, and deterministic diagnostics.
Documentation
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//! Ticket management tools for the Manager role.
//!
//! These tools allow the Manager to create tickets on the board,
//! update their phase, list them, and inspect individual tickets.

use crate::Role;
use crate::Workspace;
use crate::board::store as board_store;
use crate::board::{TicketParams, TicketPhase};
use crate::tools::Tool;
use anyhow::Result;
use async_trait::async_trait;
use serde_json::json;
use std::fmt::Write;

// ── Ticket ID resolution ─────────────────────────────────────────

/// Resolve a raw ticket ID argument against the tool's bound workspace.
///
/// Accepts either a bare number (resolved to `{ws}-{number}`) or the fully
/// prefixed form for the bound workspace. Prefixed IDs from any other
/// workspace are rejected with a clear error.
fn resolve_ticket_id(ws_name: &str, raw: &str) -> Result<String> {
    let id = raw.trim();
    anyhow::ensure!(!id.is_empty(), "Ticket ID must not be empty");
    let seq_ok = |s: &str| !s.is_empty() && s.bytes().all(|b| b.is_ascii_digit());
    // Bare number → bound workspace ticket.
    if seq_ok(id) {
        return Ok(format!("{ws_name}-{id}"));
    }
    // Prefixed form `{workspace}-{seq}` — only the bound workspace is accepted.
    // The prefix shape mirrors workspace::validate_name ([a-zA-Z_]+ starting with
    // a letter); keep the two grammars in sync.
    if let Some((prefix, seq)) = id.rsplit_once('-') {
        let prefix_ok = prefix.starts_with(|c: char| c.is_ascii_alphabetic())
            && prefix.chars().all(|c| c.is_ascii_alphabetic() || c == '_');
        if prefix_ok && seq_ok(seq) {
            if prefix == ws_name {
                return Ok(id.to_string());
            }
            anyhow::bail!(
                "Ticket '{id}' belongs to a different workspace — ticket tools only manage \
                 tickets from workspace '{ws_name}'"
            );
        }
    }
    anyhow::bail!("Invalid ticket ID '{id}' — expected a bare number or '{ws_name}-<number>'");
}

// ── CreateTicketTool ─────────────────────────────────────────────

/// Tool for creating tickets. The `reporter` field is set at construction
/// time based on which role is using the tool — invisible to the agent,
/// no parameter to pass. Bound to a single workspace at construction time.
pub struct CreateTicketTool {
    reporter: String,
    ws_name: String,
}

impl CreateTicketTool {
    pub fn new(reporter: impl Into<String>, ws: &Workspace) -> Self {
        Self {
            reporter: reporter.into(),
            ws_name: ws.name.clone(),
        }
    }

    /// Build a [`TicketParams`] from the shared fields used by both creation branches.
    fn build_params(
        &self,
        title: &str,
        description: &str,
        prerequisites: &[String],
        embedding_bytes: Option<Vec<u8>>,
        priority: i64,
    ) -> TicketParams {
        TicketParams {
            title: title.to_string(),
            description: description.to_string(),
            workspace_name: self.ws_name.clone(),
            phase: TicketPhase::Backlog,
            prerequisites: prerequisites.to_vec(),
            reporter: self.reporter.clone(),
            embedding: embedding_bytes,
            priority,
        }
    }
}

#[async_trait]
impl Tool for CreateTicketTool {
    fn name(&self) -> &'static str {
        "create_ticket"
    }

    fn parameters_schema(&self) -> serde_json::Value {
        let mut props = serde_json::Map::new();
        props.insert(
            "title".into(),
            json!({
                "type": "string",
                "description": "Short title/summary of the task"
            }),
        );
        props.insert(
            "description".into(),
            json!({
                "type": "string",
                "description": "Detailed description of the task"
            }),
        );
        props.insert(
            "prerequisites".into(),
            json!({
                "type": "array",
                "description": "Optional list of ticket IDs that must be completed (done, archived, or cancelled) before this ticket can be claimed",
                "items": {
                    "type": "string"
                }
            }),
        );
        props.insert(
            "supersede".into(),
            json!({
                "type": "string",
                "description": "Optional ticket ID to supersede — atomically cancels the old ticket, creates this one as its replacement, and rewires any dependents to point to the new ID"
            }),
        );

        // Only Manager sees the priority parameter — Maintainer always uses
        // a hardcoded value and must not have it in the schema.
        if self.reporter == "manager" {
            props.insert(
                "priority".into(),
                json!({
                    "type": "integer",
                    "description": "Priority level: 0 = highest urgency, 1 (default), 2, 3, ... Higher numbers = lower priority"
                }),
            );
        }

        super::tool_params_schema(&serde_json::Value::Object(props), &["title", "description"])
    }

    async fn execute(&self, _ws: &Workspace, args: serde_json::Value) -> Result<String> {
        let title = super::get_str(&args, "title")?;
        let description = super::get_str(&args, "description")?;

        let prerequisites: Vec<String> = match args.get("prerequisites") {
            Some(serde_json::Value::Array(arr)) => arr
                .iter()
                .map(|v| {
                    let s = v.as_str().ok_or_else(|| {
                        anyhow::anyhow!("prerequisites must contain ticket ID strings, got {v}")
                    })?;
                    resolve_ticket_id(&self.ws_name, s)
                })
                .collect::<Result<_>>()?,
            Some(_) => {
                anyhow::bail!("prerequisites must be an array of ticket ID strings");
            }
            None => Vec::new(),
        };

        let supersede_id: Option<String> = match args.get("supersede") {
            Some(serde_json::Value::String(s)) => Some(resolve_ticket_id(&self.ws_name, s)?),
            Some(_) => anyhow::bail!("supersede must be a ticket ID string"),
            None => None,
        };

        // Priority: Manager can set explicitly; otherwise inherit from the
        // superseded ticket (if superseding) or use the role default.
        let explicit_priority: Option<i64> = if self.reporter == "manager" {
            args.get("priority").and_then(serde_json::Value::as_i64)
        } else {
            None
        };

        let store = board_store();
        let embedding_bytes: Option<Vec<u8>> =
            crate::embedder::embed_document(title).map(|v| crate::vector::vec_to_bytes(&v));

        let prereq_note = if prerequisites.is_empty() {
            String::new()
        } else {
            format!(" with prerequisites: {}", prerequisites.join(", "))
        };

        let priority: i64 = match (&supersede_id, explicit_priority) {
            (Some(supersede_id), None) => {
                // No explicit priority — inherit from the superseded ticket.
                // Priority is immutable after ticket creation, so reading it
                // outside the supersede transaction has no TOCTOU race.
                match store.get_ticket_priority(supersede_id).await? {
                    Some(p) => p,
                    None => anyhow::bail!(
                        "Superseded ticket {supersede_id} not found when reading priority",
                    ),
                }
            }
            (_, Some(p)) => p,
            (None, None) => {
                if self.reporter == "manager" {
                    1
                } else if self.reporter == "maintainer" {
                    3
                } else {
                    1
                }
            }
        };

        let params = self.build_params(
            title,
            description,
            &prerequisites,
            embedding_bytes,
            priority,
        );
        if let Some(supersede_id) = supersede_id {
            guard_not_pipeline_blocking(store, &supersede_id).await?;

            let id = store.supersede_and_create(&supersede_id, &params).await?;
            Ok(format!(
                "Superseded {supersede_id} → created ticket {id}: {title}{prereq_note}"
            ))
        } else {
            let id = store.create_ticket(&params).await?;
            Ok(format!("Created ticket {id}: {title}{prereq_note}"))
        }
    }
}

// ── UpdateTicketTool ─────────────────────────────────────────────

pub struct UpdateTicketTool {
    ws_name: String,
}

impl UpdateTicketTool {
    pub fn new(ws: &Workspace) -> Self {
        Self {
            ws_name: ws.name.clone(),
        }
    }
}

#[async_trait]
impl Tool for UpdateTicketTool {
    fn name(&self) -> &'static str {
        "update_ticket"
    }

    fn parameters_schema(&self) -> serde_json::Value {
        super::tool_params_schema(
            &json!({
                "ticket_id": {
                    "type": "string",
                    "description": "The ticket id"
                },
                "phase": {
                    "type": "string",
                    "description": "New phase for the ticket. Valid manual transitions: backlog (return to queue), planning (paused state awaiting further decision whether to proceed with the ticket or cancel it), ready_for_development (send to engineer), cancelled (abandon), failed (mark unsuccessful), done (mark complete), qa_passed (advance failed ticket past failed — only valid from 'failed' phase for Manager triage of minor issues). Do NOT manually set other pipeline-managed phases (analysis, in_development, in_diagnostics, diagnostics_done, in_review, reviewed, in_qa) — the board poller handles these automatically and manual transitions will interfere with running agents."
                }
            }),
            &["ticket_id", "phase"],
        )
    }

    async fn execute(&self, _ws: &Workspace, args: serde_json::Value) -> Result<String> {
        let ticket_id = resolve_ticket_id(&self.ws_name, super::get_str(&args, "ticket_id")?)?;
        let new_phase = super::get_str(&args, "phase")?;

        let parsed_phase = new_phase.parse::<TicketPhase>()?;

        let store = board_store();

        // Guard: refuse to update a ticket that is in a pipeline-blocking phase.
        guard_not_pipeline_blocking(store, &ticket_id).await?;

        store
            .transition_to(&ticket_id, None, parsed_phase, None)
            .await?;

        Ok(format!("Ticket {ticket_id} phase updated to '{new_phase}'"))
    }
}

// ── ListTicketsTool ─────────────────────────────────────────────

pub struct ListTicketsTool {
    ws_name: String,
}

impl ListTicketsTool {
    pub fn new(ws: &Workspace) -> Self {
        Self {
            ws_name: ws.name.clone(),
        }
    }
}

#[async_trait]
impl Tool for ListTicketsTool {
    fn name(&self) -> &'static str {
        "list_tickets"
    }

    fn parameters_schema(&self) -> serde_json::Value {
        super::tool_params_schema(
            &json!({
                "phase": {
                    "type": "string",
                    "description": "Optional phase filter (e.g. 'ready_for_development', 'in_development', 'done', 'cancelled'). When omitted, 'done' and 'cancelled' tickets are excluded — use an explicit phase filter to include them. Use 'search_archived_tickets' to find archived tickets."
                }
            }),
            &[],
        )
    }

    fn side_effects(&self) -> bool {
        false // read-only board query
    }

    async fn execute(&self, _ws: &Workspace, args: serde_json::Value) -> Result<String> {
        let raw_phase = super::get_opt_str(&args, "phase");

        // "archived" is no longer a phase — redirect to search_archived_tickets
        if let Some(s) = raw_phase
            && s.eq_ignore_ascii_case("archived")
        {
            anyhow::bail!(
                "Archived tickets are not accessible via 'list_tickets'. \
                     Use 'search_archived_tickets' to search the archive."
            );
        }

        let phase_filter = match raw_phase {
            Some(s) => {
                let parsed = s.parse::<TicketPhase>()?;
                Some(parsed)
            }
            None => None,
        };

        let store = board_store();

        let mut tickets = store
            .list_all_tickets(Some(&self.ws_name), phase_filter)
            .await?;

        // Default: exclude unblocking phases. When an explicit phase filter
        // is provided, respect it as-is.
        if phase_filter.is_none() {
            tickets.retain(|t| !t.phase.is_unblocking());
        }

        if tickets.is_empty() {
            return Ok("No tickets found.".to_string());
        }

        let mut output = String::from("Tickets:\n");
        for t in &tickets {
            let _ = writeln!(output, "{}", t.short_display());
        }

        Ok(output)
    }
}

// ── GetTicketTool ───────────────────────────────────────────────

pub struct GetTicketTool {
    ws_name: String,
}

impl GetTicketTool {
    pub fn new(ws: &Workspace) -> Self {
        Self {
            ws_name: ws.name.clone(),
        }
    }
}

#[async_trait]
impl Tool for GetTicketTool {
    fn name(&self) -> &'static str {
        "get_ticket"
    }

    fn parameters_schema(&self) -> serde_json::Value {
        super::tool_params_schema(
            &json!({
                "ticket_id": {
                    "type": "string",
                    "description": "The ticket id"
                }
            }),
            &["ticket_id"],
        )
    }

    fn side_effects(&self) -> bool {
        false // read-only board query
    }

    fn preserve_full_output(&self) -> bool {
        // Ticket content (descriptions, comments) can exceed the 5 KB
        // budget — the LLM needs it in full.
        true
    }

    async fn execute(&self, _ws: &Workspace, args: serde_json::Value) -> Result<String> {
        let ticket_id = resolve_ticket_id(&self.ws_name, super::get_str(&args, "ticket_id")?)?;

        let store = board_store();

        match store.get_ticket(&ticket_id).await? {
            Some(ticket) => Ok(ticket.detailed_display()),
            None => anyhow::bail!("Ticket {ticket_id} not found"),
        }
    }
}

// ── AddCommentTool ──────────────────────────────────────────────

pub struct AddCommentTool {
    ws_name: String,
}

impl AddCommentTool {
    pub fn new(ws: &Workspace) -> Self {
        Self {
            ws_name: ws.name.clone(),
        }
    }
}

#[async_trait]
impl Tool for AddCommentTool {
    fn name(&self) -> &'static str {
        "add_comment"
    }

    fn parameters_schema(&self) -> serde_json::Value {
        super::tool_params_schema(
            &json!({
                "ticket_id": {
                    "type": "string",
                    "description": "The ID of the ticket to comment on"
                },
                "content": {
                    "type": "string",
                    "description": "The comment content"
                }
            }),
            &["ticket_id", "content"],
        )
    }

    async fn execute(&self, _ws: &Workspace, args: serde_json::Value) -> Result<String> {
        let ticket_id = resolve_ticket_id(&self.ws_name, super::get_str(&args, "ticket_id")?)?;
        let content = super::get_str(&args, "content")?;

        let store = board_store();

        store
            .add_comment(&ticket_id, Role::Manager.as_str(), content)
            .await?;

        Ok(format!("Comment added to ticket {ticket_id}"))
    }
}

/// Guard: refuse to proceed if the ticket is in a pipeline-blocking phase.
/// All three user-facing ticket tools use this to prevent modifications
/// to in-flight tickets during automated pipeline processing.
async fn guard_not_pipeline_blocking(
    store: &crate::board::BoardStore,
    ticket_id: &str,
) -> Result<()> {
    if let Some(current_phase) = store.get_ticket_phase(ticket_id).await?
        && current_phase.is_pipeline_blocking()
    {
        anyhow::bail!(
            "Ticket {ticket_id} is currently in phase '{current_phase}' — \
                 in-flight tickets cannot be modified through automated tools. \
                 Use the GUI to cancel or manage this ticket manually.",
        );
    }
    Ok(())
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::util::test::TicketBuilder;
    use crate::util::test::expect_ticket;
    use crate::util::test::make_ticket;
    use crate::workspace::test_ws;
    use serde_json::json;

    #[tokio::test]
    async fn test_create_ticket_tool() {
        crate::util::test::init_test_stores().await;

        let ws = test_ws("/tmp/test_ws");
        let tool = CreateTicketTool::new("test", &ws);
        let args = json!({
            "title": "Test ticket",
            "description": "A test description",
        });
        let result = tool.execute(&ws, args).await.expect("execute");
        assert!(
            result.contains("Test ticket"),
            "Output should contain title"
        );
    }

    #[tokio::test]
    async fn test_create_ticket_rejects_non_string_prerequisite() {
        crate::util::test::init_test_stores().await;

        let ws = test_ws("/tmp/test_ws");
        let tool = CreateTicketTool::new("test", &ws);
        let args = json!({
            "title": "Test",
            "description": "desc",
            "prerequisites": [123],
        });
        let err = tool.execute(&ws, args).await.unwrap_err();
        assert!(
            format!("{err}").contains("ticket ID strings"),
            "non-string prerequisite should be rejected: {err}"
        );
    }

    #[tokio::test]
    #[serial_test::serial(reset_inflight)] // shared global board — a concurrent boot reset would clobber the InQa fixture
    async fn test_update_ticket_tool() {
        crate::util::test::init_test_stores().await;

        let store = board_store();
        let ws = test_ws("/ws");
        let id = make_ticket(store, &ws, "Test", crate::board::TicketPhase::Backlog).await;

        let tool = UpdateTicketTool::new(&ws);
        let args = json!({
            "ticket_id": id,
            "phase": "in_qa"
        });
        tool.execute(&ws, args).await.expect("execute");
        let ticket = store
            .get_ticket(&id)
            .await
            .expect("get_ticket")
            .expect("ticket exists");
        assert_eq!(ticket.phase, TicketPhase::InQa);
    }

    #[tokio::test]
    async fn test_list_tickets_tool() {
        crate::util::test::init_test_stores().await;

        let store = board_store();
        let ws = test_ws("/tmp_ws");

        let _id_a = make_ticket(store, &ws, "A", crate::board::TicketPhase::Backlog).await;
        let id_b = make_ticket(store, &ws, "B", crate::board::TicketPhase::Backlog).await;
        let id_c = make_ticket(store, &ws, "C", crate::board::TicketPhase::Backlog).await;
        // Transition C to 'done' and B to 'cancelled'
        store
            .transition_to(&id_c, Some(TicketPhase::Backlog), TicketPhase::Done, None)
            .await
            .expect("transition to done");
        store
            .transition_to(
                &id_b,
                Some(TicketPhase::Backlog),
                TicketPhase::Cancelled,
                None,
            )
            .await
            .expect("transition to cancelled");

        let tool = ListTicketsTool::new(&ws);

        // Default (no filter): excludes done and cancelled — only A should appear
        let args = json!({});
        let result = tool.execute(&ws, args).await.expect("execute");
        assert!(
            result.contains('A'),
            "Default listing should include active ticket A"
        );
        assert!(
            !result.contains('B'),
            "Default listing should exclude cancelled ticket B"
        );
        assert!(
            !result.contains('C'),
            "Default listing should exclude done ticket C"
        );

        // Explicit filter for 'done': includes done tickets
        let args = json!({"phase": "done"});
        let result = tool.execute(&ws, args).await.expect("execute");
        assert!(
            result.contains('C'),
            "Explicit 'done' filter should include done ticket C"
        );
        assert!(
            !result.contains('A'),
            "Explicit 'done' filter should exclude active ticket A"
        );

        // Explicit filter for 'cancelled': includes cancelled tickets
        let args = json!({"phase": "cancelled"});
        let result = tool.execute(&ws, args).await.expect("execute");
        assert!(
            result.contains('B'),
            "Explicit 'cancelled' filter should include cancelled ticket B"
        );

        // Filter for an active phase that ticket A is actually in
        let args = json!({"phase": "backlog"});
        let result = tool.execute(&ws, args).await.expect("execute");
        assert!(
            result.contains('A'),
            "Explicit 'backlog' filter should include ticket A"
        );
    }

    #[tokio::test]
    async fn test_list_tickets_invalid_phase() {
        crate::util::test::init_test_stores().await;

        let ws = crate::workspace::test_ws("/tmp");
        let tool = ListTicketsTool::new(&ws);
        let args = json!({"phase": "bogus_phase"});
        let result = tool.execute(&ws, args).await;
        assert!(result.is_err(), "Invalid phase should fail");
    }

    #[tokio::test]
    async fn test_get_ticket_tool() {
        crate::util::test::init_test_stores().await;

        let store = board_store();
        let ws = test_ws("/ws");
        let id = TicketBuilder::new(store, &ws)
            .title("GetTest")
            .desc("get me")
            .create()
            .await
            .expect("create");

        // Fetch the ticket to compare against detailed_display()
        let ticket = crate::util::test::expect_ticket(store, &id).await;
        let expected = ticket.detailed_display();

        let tool = GetTicketTool::new(&ws);
        let args = json!({"ticket_id": id});
        let result = tool.execute(&ws, args).await.expect("execute");
        assert_eq!(
            result, expected,
            "GetTicketTool output must match Ticket::detailed_display()"
        );
    }

    #[tokio::test]
    async fn test_add_comment_tool() {
        crate::util::test::init_test_stores().await;

        let store = board_store();
        let ws = test_ws("/ws");
        let id = TicketBuilder::new(store, &ws)
            .title("CommentTest")
            .desc("add a comment")
            .create()
            .await
            .expect("create");

        let tool = AddCommentTool::new(&ws);
        let args = json!({
            "ticket_id": id,
            "content": "This is a test comment",
        });
        let result = tool.execute(&ws, args).await.expect("execute");
        assert!(result.contains(&id), "Output should contain ticket id");

        // Verify comment was stored
        let ticket = crate::util::test::expect_ticket(store, &id).await;
        let comment = ticket.comments.last().expect("at least one comment");
        assert_eq!(comment.role, Role::Manager.as_str());
        assert_eq!(comment.content, "This is a test comment");
    }

    #[tokio::test]
    async fn test_invalid_phase() {
        crate::util::test::init_test_stores().await;

        let store = board_store();
        let ws = test_ws("/ws");
        let id = make_ticket(store, &ws, "Test", crate::board::TicketPhase::Backlog).await;

        let tool = UpdateTicketTool::new(&ws);
        let args = json!({
            "ticket_id": id,
            "phase": "invalid_phase"
        });
        let result = tool.execute(&ws, args).await;
        assert!(result.is_err(), "Invalid phase should fail");
    }

    // ── Pipeline-blocking guard tests ────────────────────────────

    #[tokio::test]
    #[serial_test::serial(reset_inflight)] // shared global board — a concurrent boot reset would clobber the InDevelopment fixture
    async fn test_guard_not_pipeline_blocking_cases() {
        crate::util::test::init_test_stores().await;

        let store = board_store();
        let ws = test_ws("/ws");

        let blocking_id = TicketBuilder::new(store, &ws)
            .title("BlockingGuard")
            .desc("in development")
            .phase(TicketPhase::InDevelopment)
            .create()
            .await
            .expect("create");

        let nonblocking_id = TicketBuilder::new(store, &ws)
            .title("NonBlockingGuard")
            .desc("backlog")
            .phase(TicketPhase::Backlog)
            .create()
            .await
            .expect("create");

        let result = guard_not_pipeline_blocking(store, &blocking_id).await;
        assert!(result.is_err(), "Blocking-phase ticket should be rejected");
        let err = format!("{}", result.unwrap_err());
        assert!(
            err.contains("in-flight"),
            "Error should mention in-flight restriction"
        );

        let result = guard_not_pipeline_blocking(store, &nonblocking_id).await;
        assert!(result.is_ok(), "Non-blocking ticket should pass the guard");

        // Non-existent ticket silently passes (nothing to block)
        let result = guard_not_pipeline_blocking(store, "nonexistent_id").await;
        assert!(
            result.is_ok(),
            "Non-existent ticket should silently pass the guard"
        );
    }

    /// Create a ticket in a pipeline-blocking phase (InDevelopment).
    /// Used by wiring tests below to verify tools call `guard_not_pipeline_blocking`.
    async fn create_blocking_ticket() -> String {
        crate::util::test::init_test_stores().await;
        let store = board_store();
        TicketBuilder::new(store, &test_ws("/ws"))
            .title("BlockMe")
            .desc("in flight")
            .phase(TicketPhase::InDevelopment)
            .create()
            .await
            .expect("create")
    }

    #[tokio::test]
    #[serial_test::serial(reset_inflight)] // shared global board — a concurrent boot reset would clobber the InDevelopment fixture
    async fn test_update_ticket_blocked_by_pipeline() {
        let id = create_blocking_ticket().await;
        let ws = test_ws("/ws");
        let result = UpdateTicketTool::new(&ws)
            .execute(&ws, json!({"ticket_id": id, "phase": "backlog"}))
            .await;
        assert!(
            result.is_err(),
            "Pipeline-blocking ticket should reject update"
        );
    }

    #[tokio::test]
    #[serial_test::serial(reset_inflight)] // shared global board — a concurrent boot reset would clobber the InDevelopment fixture
    async fn test_create_ticket_supersede_blocked_by_pipeline() {
        let id = create_blocking_ticket().await;
        let ws = test_ws("/ws");
        let result = CreateTicketTool::new("test", &ws)
            .execute(
                &ws,
                json!({"title": "Replacement", "description": "trying to supersede", "supersede": id}),
            )
            .await;
        assert!(
            result.is_err(),
            "Supersede should be rejected for pipeline-blocking tickets"
        );
    }

    #[tokio::test]
    async fn test_supersede_inherits_priority() {
        crate::util::test::init_test_stores().await;

        let store = board_store();
        let ws = test_ws("/tmp/test_ws_supersede_priority");

        // Create a ticket with a non-default priority (0 = highest urgency).
        let old_id = TicketBuilder::new(store, &ws)
            .title("Urgent")
            .priority(0)
            .create()
            .await
            .expect("create old ticket");

        // Supersede without specifying priority — should inherit priority 0.
        let tool = CreateTicketTool::new("manager", &ws);
        let args = json!({
            "title": "Replacement",
            "description": "superseding the urgent ticket",
            "supersede": old_id,
        });
        let result = tool
            .execute(&ws, args)
            .await
            .expect("supersede should succeed");
        assert!(result.contains("Superseded"), "Expected supersede output");

        // Find the new ticket ID via the old ticket's superseded_by link.
        let old_ticket = expect_ticket(store, &old_id).await;
        let new_id = old_ticket
            .superseded_by
            .as_deref()
            .expect("old ticket should have superseded_by");

        // Verify the new ticket inherited priority 0 from the old ticket.
        let new_ticket = expect_ticket(store, new_id).await;
        assert_eq!(
            new_ticket.priority, 0,
            "Should inherit priority from superseded ticket"
        );
    }

    #[tokio::test]
    async fn test_supersede_explicit_priority_overrides_inheritance() {
        crate::util::test::init_test_stores().await;

        let store = board_store();
        let ws = test_ws("/tmp/test_ws_supersede_explicit_priority");

        // Create a ticket with a non-default priority.
        let old_id = TicketBuilder::new(store, &ws)
            .title("Old ticket")
            .priority(0)
            .create()
            .await
            .expect("create old ticket");

        // Supersede with explicit priority — should use the explicit value,
        // not inherit the old ticket's priority.
        let tool = CreateTicketTool::new("manager", &ws);
        let args = json!({
            "title": "Replacement",
            "description": "superseding with explicit priority",
            "supersede": old_id,
            "priority": 5,
        });
        let result = tool
            .execute(&ws, args)
            .await
            .expect("supersede should succeed");
        assert!(result.contains("Superseded"), "Expected supersede output");

        let old_ticket = expect_ticket(store, &old_id).await;
        let new_id = old_ticket
            .superseded_by
            .as_deref()
            .expect("old ticket should have superseded_by");

        let new_ticket = expect_ticket(store, new_id).await;
        assert_eq!(
            new_ticket.priority, 5,
            "Explicit priority should override inheritance from old ticket"
        );
    }

    #[tokio::test]
    async fn test_add_comment_allowed_on_pipeline_blocking() {
        let id = create_blocking_ticket().await;
        let ws = test_ws("/ws");
        let result = AddCommentTool::new(&ws)
            .execute(
                &ws,
                json!({"ticket_id": id, "content": "This should be allowed now"}),
            )
            .await;
        assert!(
            result.is_ok(),
            "Comments should be allowed on pipeline-blocking tickets"
        );
    }

    #[test]
    fn test_resolve_ticket_id() {
        // Bare numbers resolve against the bound workspace.
        assert_eq!(resolve_ticket_id("ws", "123").unwrap(), "ws-123");
        assert_eq!(resolve_ticket_id("ws", "  7 ").unwrap(), "ws-7");
        // Fully prefixed form for the bound workspace is accepted.
        assert_eq!(resolve_ticket_id("ws", "ws-123").unwrap(), "ws-123");
        assert_eq!(resolve_ticket_id("my_ws", "my_ws-42").unwrap(), "my_ws-42");
        // Foreign workspace prefixes are rejected.
        let err = format!("{}", resolve_ticket_id("ws", "other-123").unwrap_err());
        assert!(
            err.contains("different workspace"),
            "foreign prefix should be rejected: {err}"
        );
        // Malformed IDs are rejected.
        for bad in [
            "", "abc", "-5", "ws-abc", "123-456", "ws-", "ws-12-34", "___-123",
        ] {
            assert!(
                resolve_ticket_id("ws", bad).is_err(),
                "malformed ID '{bad}' should be rejected"
            );
        }
    }

    #[tokio::test]
    async fn test_get_ticket_workspace_binding() {
        crate::util::test::init_test_stores().await;

        let store = board_store();
        let ws = test_ws("/ws");
        let id = TicketBuilder::new(store, &ws)
            .title("Bound")
            .desc("binding test")
            .create()
            .await
            .expect("create");

        let ticket = crate::util::test::expect_ticket(store, &id).await;
        let expected = ticket.detailed_display();

        // Bare numeric ID resolves against the bound workspace.
        let seq = id.strip_prefix("ws-").expect("prefixed id");
        let result = GetTicketTool::new(&ws)
            .execute(&ws, json!({"ticket_id": seq}))
            .await
            .expect("bare number should resolve");
        assert_eq!(result, expected);

        // A tool bound to another workspace rejects the foreign ticket.
        let foreign = test_ws("/other");
        let err = GetTicketTool::new(&foreign)
            .execute(&foreign, json!({"ticket_id": id}))
            .await
            .unwrap_err();
        assert!(
            format!("{err}").contains("different workspace"),
            "foreign ticket should be rejected: {err}"
        );
    }
}