Projects: shareable, registry-backed, container-mounted; drop ticket board

Rework projects from single-user leftovers into shareable endeavours.

- DB: move `projects` from the owner bucket to the registry (system.db,
  not encrypted); add `owner_user_id` + `slug` (drop free `path`); new
  `project_members(project_id, user_id, can_write)` mirroring
  `shared_folder_members`. Drop `project_tickets` entirely. Only user↔agent
  conversations stay encrypted (per-user DB) — each member keeps a private
  project chat. Registry home dissolves the cross-DB-FK problem.
- Filesystem/container: on disk `{WD}/projects/{owner_userid}/{slug}`,
  agent/container path `projects/{owner_username}/{slug}`. Two-segment routing
  in UserFs (ProjectMount + host_base_and_tail arm) and a second loop in
  build_user_fs; read-only members get a :ro mount. Reuse the shared-folder
  remount machinery (refresh_user_shared_folders -> refresh_user_mounts).
- Remove the ticket system: ProjectTicketManager, UserContext.tickets, its
  wiring, and the project_tickets references in scheduled_jobs/cron.
- API: repoint handlers to the registry pool + membership scoping. Sharing is
  self-service — owner or any write-member may add/remove members and set
  read/write; only the owner deletes; the owner cannot be removed. New
  POST/DELETE /api/projects/{id}/members[/{user_id}]. Seed `@fs_any allow
  projects/*`; build_runtime_run_context sets working_directory to the agent
  path and drops the host-path allow_fs_writes.
- Frontend: create form without the free path field, owner/read-write badges;
  the detail page becomes header + description + sharing panel + Open chat + a
  file-explorer placeholder (the future primary surface). i18n en/it/fr.

crates/core-api/src/user_fs.rs

@@ -8,6 +8,7 @@
 //! | `user-memory/…`   | SQLite (the user's pool) — routed *before* this    |
 //! | `shared-memory/…` | SQLite (`system.db`) — routed *before* this        |
 //! | `shared/{X}/…`    | host `{WD}/shared/{X}`, mount `{home}/shared/{X}`  |
+//! | `projects/{O}/{S}`| host `{WD}/projects/{owner_userid}/{S}`, mount `{home}/projects/{O}/{S}` (O = owner username) |
 //! | `~/…`, relative   | host `{WD}/homes/{userid}`, mount `{container_home}`|
 //!
 //! `UserFs` is a **pure value type** with no filesystem access: it carries the
@@ -33,6 +34,25 @@ pub struct SharedMount {
     pub can_write: bool,
 }
 
+/// One project folder mounted into a user's container. Unlike a shared folder its
+/// agent path has **two** segments — `projects/{owner_username}/{slug}` — because a
+/// project is namespaced by its owner (two members can each own a `budget`). The host
+/// path keys on the owner's stable **userid**, the agent/container path on the
+/// (mutable) **username**.
+#[derive(Debug, Clone)]
+pub struct ProjectMount {
+    /// The owner's username — the first agent-visible segment under `projects/`.
+    pub owner_username: String,
+    /// The project slug — the second agent-visible segment.
+    pub slug:           String,
+    /// Absolute host directory that backs it (`{WD}/projects/{owner_userid}/{slug}`).
+    pub host:           PathBuf,
+    /// Where it is mounted inside the container (`{home}/projects/{owner_username}/{slug}`).
+    pub container:      PathBuf,
+    /// Whether this member may write to it.
+    pub can_write:      bool,
+}
+
 /// The filesystem view of one user: their private home plus the shared folders
 /// they belong to, and the container those are mounted into.
 #[derive(Debug, Clone)]
@@ -46,6 +66,8 @@ pub struct UserFs {
     pub container_home: PathBuf,
     /// Shared folders this user can reach, in name order.
     pub shared:         Vec<SharedMount>,
+    /// Projects this user can reach (owned + shared-with-them), by owner then slug.
+    pub projects:       Vec<ProjectMount>,
 }
 
 impl UserFs {
@@ -55,6 +77,7 @@ impl UserFs {
         container_name: impl Into<String>,
         container_home: PathBuf,
         shared:         Vec<SharedMount>,
+        projects:       Vec<ProjectMount>,
     ) -> Self {
         Self {
             user_id: user_id.into(),
@@ -62,6 +85,7 @@ impl UserFs {
             container_name: container_name.into(),
             container_home,
             shared,
+            projects,
         }
     }
 
@@ -70,12 +94,22 @@ impl UserFs {
         self.shared.iter().find(|m| m.name == name)
     }
 
+    /// Look up a project mount by its owner username + slug (the two agent segments).
+    pub fn project_mount(&self, owner_username: &str, slug: &str) -> Option<&ProjectMount> {
+        self.projects
+            .iter()
+            .find(|m| m.owner_username == owner_username && m.slug == slug)
+    }
+
     /// The bind mounts for `docker create`: `(host, container, writable)`, home first.
     pub fn mounts(&self) -> Vec<(PathBuf, PathBuf, bool)> {
         let mut out = vec![(self.home_host.clone(), self.container_home.clone(), true)];
         for m in &self.shared {
             out.push((m.host.clone(), m.container.clone(), m.can_write));
         }
+        for m in &self.projects {
+            out.push((m.host.clone(), m.container.clone(), m.can_write));
+        }
         out
     }
 
@@ -100,14 +134,25 @@ impl UserFs {
                 let mount = self.shared_mount(name)?;
                 Some((mount.host.clone(), tail.to_string()))
             }
+            Some("projects") => {
+                // Two segments: `projects/{owner_username}/{slug}/{tail…}`.
+                let rest = parts.next().unwrap_or("");
+                let mut seg = rest.splitn(3, ['/', '\\']);
+                let owner = seg.next().unwrap_or("");
+                let slug  = seg.next().unwrap_or("");
+                let tail  = seg.next().unwrap_or("");
+                let mount = self.project_mount(owner, slug)?;
+                Some((mount.host.clone(), tail.to_string()))
+            }
             _ => Some((self.home_host.clone(), stripped.to_string())),
         }
     }
 
     /// Map an agent path to its **container** path (pure, lexical): `~`/relative →
-    /// under `container_home`; `shared/{X}` → under `container_home/shared/{X}`; an
-    /// already-absolute path is taken as a container path as-is. Used to set the
-    /// working directory of an `execute_cmd` inside the container.
+    /// under `container_home`; `shared/{X}` and `projects/{O}/{S}` → under
+    /// `container_home/…` (they mirror the container layout); an already-absolute path
+    /// is taken as a container path as-is. Used to set the working directory of an
+    /// `execute_cmd` inside the container.
     pub fn to_container(&self, agent_path: &str) -> PathBuf {
         let p = Path::new(agent_path);
         if p.is_absolute() {

crates/skald-core/src/approval/mod.rs

@@ -355,6 +355,10 @@ impl ApprovalManager {
             ("@fs_read",      Some("shared-memory/*"), "allow",   "auto-allow read shared-memory/"),
             ("@fs_write",     Some("shared-memory/*"), "require", "require write shared-memory/"),
             ("@fs_any",       Some("data/*"),          "allow",   "auto-allow data/"),
+            // Project folders (`projects/{owner}/{slug}`, blueprint §6): reads + writes
+            // frictionless, matching the working-project UX. A read-only member's mount
+            // is `:ro`, so a write physically fails regardless of this allow.
+            ("@fs_any",       Some("projects/*"),      "allow",   "auto-allow projects/"),
             ("memory_search", None,                    "allow",   "allow memory_search"),
         ];
 
@@ -1169,15 +1173,15 @@ mod tests {
         .unwrap();
         assert_eq!(legacy, 0, "legacy fs rules should be removed by migration");
 
-        // …and replaced by exactly the four @fs_* token rows (shared-memory has two:
-        // read-allow and write-require).
+        // …and replaced by exactly the five @fs_* token rows (shared-memory has two:
+        // read-allow and write-require; plus user-memory, data, and projects).
         let fs_rows: i64 = sqlx::query_scalar(
             "SELECT COUNT(*) FROM approval_rules WHERE tool_pattern LIKE '@fs%'",
         )
         .fetch_one(db.as_ref())
         .await
         .unwrap();
-        assert_eq!(fs_rows, 4, "user-memory + shared-memory(r/w) + data @fs_* rules should be seeded");
+        assert_eq!(fs_rows, 5, "user-memory + shared-memory(r/w) + data + projects @fs_* rules should be seeded");
 
         // Gate decisions through the real check() path.
         async fn decide(mgr: &ApprovalManager, tool: &str, path: &str) -> GateResult {
@@ -1192,6 +1196,9 @@ mod tests {
         assert!(matches!(decide(&mgr, "write_file", "shared-memory/casa.md").await,   GateResult::Require));
         assert!(matches!(decide(&mgr, "edit_file",  "shared-memory/casa.md").await,   GateResult::Require));
         assert!(matches!(decide(&mgr, "read_file",  "data/x.txt").await,              GateResult::Allow));
+        // project folders auto-allow reads and writes (subtree match on projects/*).
+        assert!(matches!(decide(&mgr, "write_file", "projects/alice/budget/x.md").await, GateResult::Allow));
+        assert!(matches!(decide(&mgr, "read_file",  "projects/alice/budget").await,      GateResult::Allow));
         // memory_search is allowed by a path-less tool rule (it has `query`, not `path`).
         assert!(matches!(decide(&mgr, "memory_search", "ignored").await,              GateResult::Allow));
         // The on-disk secrets store is gone, and with it its blanket deny: `secrets/`

crates/skald-core/src/container/mod.rs

@@ -23,7 +23,7 @@ use std::time::Duration;
 use anyhow::{bail, Context, Result};
 use sqlx::SqlitePool;
 
-use core_api::user_fs::{SharedMount, UserFs};
+use core_api::user_fs::{ProjectMount, SharedMount, UserFs};
 
 use crate::db;
 
@@ -38,6 +38,9 @@ const DOCKERFILE: &str = include_str!("Dockerfile");
 pub const HOMES_DIR: &str = "homes";
 /// Subdirectory of the working directory holding shared folders.
 pub const SHARED_DIR: &str = "shared";
+/// Subdirectory of the working directory holding project folders
+/// (`{WD}/projects/{owner_userid}/{slug}`).
+pub const PROJECTS_DIR: &str = "projects";
 /// Home mount point inside the container.
 pub const CONTAINER_HOME: &str = "/root";
 /// Grace window `docker stop` gives in-container processes (SIGTERM → SIGKILL)
@@ -69,7 +72,24 @@ pub async fn build_user_fs(system: &SqlitePool, user_id: &str) -> Result<UserFs>
         })
         .collect();
 
-    Ok(UserFs::new(user_id, home_host, container_name(user_id), container_home, shared))
+    // Projects (owned + shared-with-them). Host keys on the owner's stable userid; the
+    // agent/container path keys on the owner's username (`projects/{owner_username}/{slug}`).
+    let project_rows = db::project_members::list_for_user_mounts(system, user_id).await?;
+    let projects = project_rows
+        .into_iter()
+        .map(|p| ProjectMount {
+            container: container_home
+                .join(PROJECTS_DIR)
+                .join(&p.owner_username)
+                .join(&p.slug),
+            host: wd.join(PROJECTS_DIR).join(&p.owner_user_id).join(&p.slug),
+            owner_username: p.owner_username,
+            slug: p.slug,
+            can_write: p.can_write,
+        })
+        .collect();
+
+    Ok(UserFs::new(user_id, home_host, container_name(user_id), container_home, shared, projects))
 }
 
 /// Owns the container lifecycle: the docker availability check, the runtime image,

crates/skald-core/src/cron/mod.rs

@@ -663,16 +663,6 @@ async fn cleanup_expired_single_runs(pool: &SqlitePool) -> Result<()> {
                              AND enabled    = 0
                              AND last_run_at < datetime('now', '-7 days')";
 
-    // Clear the soft back-reference from project_tickets first: its job_id FK has
-    // no ON DELETE action, so a ticket still pointing at an expired runner job
-    // would block the DELETE below with a FOREIGN KEY constraint failure. The
-    // ticket keeps its result/error — only the (now-GC'd) job pointer is dropped.
-    sqlx::query(sqlx::AssertSqlSafe(format!(
-        "UPDATE project_tickets SET job_id = NULL WHERE job_id IN ({EXPIRED})"
-    )))
-    .execute(pool)
-    .await?;
-
     sqlx::query(sqlx::AssertSqlSafe(format!(
         "DELETE FROM job_runs WHERE job_id IN ({EXPIRED})"
     )))

crates/skald-core/src/db/mod.rs

@@ -1,5 +1,5 @@
 pub mod approval_rules;
-pub mod project_tickets;
+pub mod project_members;
 pub mod projects;
 pub mod chat_history;
 pub mod chat_llm_tools;
@@ -488,6 +488,42 @@ async fn create_registry_tables(pool: &SqlitePool) -> Result<()> {
     .execute(pool)
     .await?;
 
+    // ── Projects: shareable endeavours over an on-disk folder (blueprint §5 memory
+    // note / §6). A project is an *endeavour* with an owner + membership that HAS a
+    // *place*: a folder `{WD}/projects/{owner_userid}/{slug}` bind-mounted into each
+    // member's container (like a shared folder, but two path segments — owner + slug).
+    // Registry tables — metadata is NOT encrypted (only user↔agent conversations are);
+    // this lets a project be shared across members without the cross-DB-FK problem that
+    // an owner-bucket table would hit. `owner_user_id → users(id)` is registry→registry.
+    // The owner is also inserted as a `project_members` row (can_write=1) so mounts are
+    // uniform (a private project = a project with one member).
+    sqlx::query(
+        "CREATE TABLE IF NOT EXISTS projects (
+            id            INTEGER PRIMARY KEY AUTOINCREMENT,
+            owner_user_id TEXT    NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+            name          TEXT    NOT NULL,
+            slug          TEXT    NOT NULL,
+            description   TEXT    NOT NULL DEFAULT '',
+            run_context   TEXT,
+            created_at    TEXT    NOT NULL DEFAULT (datetime('now')),
+            updated_at    TEXT    NOT NULL DEFAULT (datetime('now')),
+            UNIQUE (owner_user_id, slug)
+        )",
+    )
+    .execute(pool)
+    .await?;
+
+    sqlx::query(
+        "CREATE TABLE IF NOT EXISTS project_members (
+            project_id INTEGER NOT NULL REFERENCES projects(id) ON DELETE CASCADE,
+            user_id    TEXT    NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+            can_write  INTEGER NOT NULL DEFAULT 1,
+            PRIMARY KEY (project_id, user_id)
+        )",
+    )
+    .execute(pool)
+    .await?;
+
     // ── MCP catalog + globally-active instances (blueprint §7/§14/§15) ──────────
     //
     // Registry tables: instance-wide MCP config, listable without any user key so
@@ -901,40 +937,10 @@ pub async fn create_owner_tables(pool: &SqlitePool) -> Result<()> {
     .execute(pool)
     .await?;
 
-    sqlx::query(
-        "CREATE TABLE IF NOT EXISTS projects (
-            id          INTEGER PRIMARY KEY AUTOINCREMENT,
-            name        TEXT    NOT NULL,
-            path        TEXT    NOT NULL,
-            description TEXT    NOT NULL DEFAULT '',
-            run_context TEXT,
-            created_at  TEXT    NOT NULL DEFAULT (datetime('now')),
-            updated_at  TEXT    NOT NULL DEFAULT (datetime('now'))
-        )",
-    )
-    .execute(pool)
-    .await?;
-
-    sqlx::query(
-        "CREATE TABLE IF NOT EXISTS project_tickets (
-            id           INTEGER PRIMARY KEY AUTOINCREMENT,
-            project_id   INTEGER NOT NULL REFERENCES projects(id) ON DELETE CASCADE,
-            title        TEXT    NOT NULL,
-            description  TEXT    NOT NULL DEFAULT '',
-            status       TEXT    NOT NULL DEFAULT 'todo'
-                             CHECK(status IN ('todo','pending','in_progress','done','failed')),
-            agent_id     TEXT    NOT NULL DEFAULT 'main',
-            run_context  TEXT,
-            job_id       INTEGER REFERENCES scheduled_jobs(id),
-            result       TEXT,
-            error        TEXT,
-            created_at   TEXT    NOT NULL DEFAULT (datetime('now')),
-            started_at   TEXT,
-            completed_at TEXT
-        )",
-    )
-    .execute(pool)
-    .await?;
+    // NOTE: `projects` + `project_members` are **registry** tables (see
+    // `create_registry_tables`) — shareable, not encrypted. The old owner-bucket
+    // `projects`/`project_tickets` tables (single-user Skald leftover) were removed
+    // when projects became a shareable, container-mounted endeavour.
 
     // Full request/response payloads for telemetry. Lives in the owner bucket
     // (per-user, encrypted) because it is conversation content. Correlated with
@@ -1060,8 +1066,6 @@ mod tests {
         one("INSERT INTO mcp_events (source, method, payload) VALUES ('s', 'm', '{}')").await.unwrap();
         one("INSERT INTO sources (id, active_session_id) VALUES ('web', 1)").await.unwrap();
         one("INSERT INTO secrets (key, value) VALUES ('k', 'v')").await.unwrap();
-        one("INSERT INTO projects (id, name, path) VALUES (1, 'p', '/tmp')").await.unwrap();
-        one("INSERT INTO project_tickets (project_id, title, job_id) VALUES (1, 't', 1)").await.unwrap();
         one("INSERT INTO llm_request_payloads (request_id, request_json) VALUES ('r1', '{}')").await.unwrap();
         // Fires the AFTER INSERT trigger into the external-content FTS5 table.
         one("INSERT INTO memory_docs (path, content) VALUES ('notes/x.md', 'hello world')").await.unwrap();

crates/skald-core/src/db/project_members.rs

@@ -0,0 +1,241 @@
+//! Project membership (registry / `system.db`): who can reach a project and with what
+//! capability. Mirrors [`super::shared_folders`]'s membership model — a junction table
+//! so a member can be read-only, and so both the container mount topology and the
+//! "shared with me / owner badge" list can query it in either direction.
+//!
+//! Two path segments distinguish it from a shared folder: a project lives at
+//! `projects/{owner_username}/{slug}`, so the mount rows carry the owner's **userid**
+//! (the host path segment, stable) and **username** (the agent-visible segment).
+//! FK `user_id → users(id)` is registry→registry (same file) — allowed.
+
+use anyhow::Result;
+use serde::Serialize;
+use sqlx::SqlitePool;
+
+/// One project a user can reach, resolved for building their container mounts.
+#[derive(Debug, Clone)]
+pub struct ProjectMountRow {
+    pub project_id:     i64,
+    /// Owner's userid — the **host** path segment (`{WD}/projects/{owner_userid}/{slug}`).
+    pub owner_user_id:  String,
+    /// Owner's username — the **agent-visible / container** path segment.
+    pub owner_username: String,
+    pub slug:           String,
+    pub can_write:      bool,
+}
+
+/// A project as it appears in a user's list: identity, owner, the caller's capability,
+/// and whether the caller owns it. `owner_name` is `display_name || username`.
+#[derive(Debug, Clone, Serialize)]
+pub struct ProjectAccess {
+    pub id:            i64,
+    pub name:          String,
+    pub slug:          String,
+    pub description:   String,
+    pub owner_user_id: String,
+    pub owner_name:    String,
+    pub is_owner:      bool,
+    pub can_write:     bool,
+    pub updated_at:    String,
+}
+
+/// One member of a project — used by the share panel and the mount topology.
+#[derive(Debug, Clone, Serialize)]
+pub struct ProjectMember {
+    pub user_id:   String,
+    pub can_write: bool,
+}
+
+// ── Reads ──────────────────────────────────────────────────────────────────────
+
+/// Every project a user belongs to, resolved for their container mounts (owner's
+/// userid + username + slug + capability). Drives `build_user_fs`.
+pub async fn list_for_user_mounts(pool: &SqlitePool, user_id: &str) -> Result<Vec<ProjectMountRow>> {
+    let rows = sqlx::query_as::<_, (i64, String, String, String, i64)>(
+        "SELECT p.id, p.owner_user_id, u.username, p.slug, m.can_write
+         FROM   project_members m
+         JOIN   projects p ON p.id = m.project_id
+         JOIN   users u ON u.id = p.owner_user_id
+         WHERE  m.user_id = ?
+         ORDER  BY u.username, p.slug",
+    )
+    .bind(user_id)
+    .fetch_all(pool)
+    .await?;
+    Ok(rows
+        .into_iter()
+        .map(|(project_id, owner_user_id, owner_username, slug, can_write)| ProjectMountRow {
+            project_id,
+            owner_user_id,
+            owner_username,
+            slug,
+            can_write: can_write != 0,
+        })
+        .collect())
+}
+
+/// The projects a user can see (owned + shared-with-them), for the UI list. Ordered by
+/// recency. `is_owner` distinguishes owned from shared (the owner-badge signal).
+pub async fn list_for_user(pool: &SqlitePool, user_id: &str) -> Result<Vec<ProjectAccess>> {
+    let rows = sqlx::query_as::<_, (i64, String, String, String, String, String, i64, i64, String)>(
+        "SELECT p.id, p.name, p.slug, p.description, p.owner_user_id,
+                COALESCE(NULLIF(ou.display_name, ''), ou.username) AS owner_name,
+                (p.owner_user_id = ?) AS is_owner,
+                m.can_write, p.updated_at
+         FROM   project_members m
+         JOIN   projects p ON p.id = m.project_id
+         JOIN   users ou ON ou.id = p.owner_user_id
+         WHERE  m.user_id = ?
+         ORDER  BY p.updated_at DESC",
+    )
+    .bind(user_id)
+    .bind(user_id)
+    .fetch_all(pool)
+    .await?;
+    Ok(rows
+        .into_iter()
+        .map(|(id, name, slug, description, owner_user_id, owner_name, is_owner, can_write, updated_at)| {
+            ProjectAccess {
+                id,
+                name,
+                slug,
+                description,
+                owner_user_id,
+                owner_name,
+                is_owner: is_owner != 0,
+                can_write: can_write != 0,
+                updated_at,
+            }
+        })
+        .collect())
+}
+
+/// The members of a project — the set of users whose containers mount it.
+pub async fn members(pool: &SqlitePool, project_id: i64) -> Result<Vec<ProjectMember>> {
+    let rows = sqlx::query_as::<_, (String, i64)>(
+        "SELECT user_id, can_write FROM project_members WHERE project_id = ?",
+    )
+    .bind(project_id)
+    .fetch_all(pool)
+    .await?;
+    Ok(rows
+        .into_iter()
+        .map(|(user_id, can_write)| ProjectMember { user_id, can_write: can_write != 0 })
+        .collect())
+}
+
+/// The caller's capability on a project: `None` when not a member, `Some(can_write)`
+/// otherwise. The authority check for reads (member) and writes/share (write-member).
+pub async fn capability_of(pool: &SqlitePool, project_id: i64, user_id: &str) -> Result<Option<bool>> {
+    let row: Option<(i64,)> = sqlx::query_as(
+        "SELECT can_write FROM project_members WHERE project_id = ? AND user_id = ?",
+    )
+    .bind(project_id)
+    .bind(user_id)
+    .fetch_optional(pool)
+    .await?;
+    Ok(row.map(|(w,)| w != 0))
+}
+
+// ── Writes ─────────────────────────────────────────────────────────────────────
+
+/// Adds (or updates the capability of) a member. Idempotent on the PK.
+pub async fn add_member(
+    pool:       &SqlitePool,
+    project_id: i64,
+    user_id:    &str,
+    can_write:  bool,
+) -> Result<()> {
+    sqlx::query(
+        "INSERT INTO project_members (project_id, user_id, can_write)
+         VALUES (?, ?, ?)
+         ON CONFLICT (project_id, user_id) DO UPDATE SET can_write = excluded.can_write",
+    )
+    .bind(project_id)
+    .bind(user_id)
+    .bind(can_write as i64)
+    .execute(pool)
+    .await?;
+    Ok(())
+}
+
+pub async fn remove_member(pool: &SqlitePool, project_id: i64, user_id: &str) -> Result<()> {
+    sqlx::query("DELETE FROM project_members WHERE project_id = ? AND user_id = ?")
+        .bind(project_id)
+        .bind(user_id)
+        .execute(pool)
+        .await?;
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::path::PathBuf;
+
+    async fn registry_pool(tag: &str) -> (SqlitePool, PathBuf) {
+        use std::sync::atomic::{AtomicU64, Ordering};
+        static SEQ: AtomicU64 = AtomicU64::new(0);
+        let n = SEQ.fetch_add(1, Ordering::Relaxed);
+        let dir = std::env::temp_dir()
+            .join(format!("skald-projectmembers-{}-{tag}-{n}", std::process::id()));
+        let _ = std::fs::remove_dir_all(&dir);
+        std::fs::create_dir_all(&dir).unwrap();
+        let pool = crate::db::init_system_pool(&dir.join("system.db").to_string_lossy())
+            .await
+            .unwrap();
+        (pool, dir)
+    }
+
+    /// Proves the registry-→registry FK `project_members.user_id → users(id)` inserts
+    /// with `PRAGMA foreign_keys=ON`, and that owned/shared are distinguished.
+    #[tokio::test]
+    async fn membership_list_distinguishes_owner_and_shared() {
+        let (pool, dir) = registry_pool("list").await;
+        for (id, name, display) in
+            [("u1", "alice", None), ("u2", "bob", Some("Bob"))]
+        {
+            sqlx::query("INSERT INTO users (id, username, display_name, role_id, encrypted) VALUES (?, ?, ?, 'admin', 0)")
+                .bind(id)
+                .bind(name)
+                .bind(display)
+                .execute(&pool)
+                .await
+                .unwrap();
+        }
+
+        // Alice owns "budget", is a write-member of her own project.
+        let p = super::super::projects::create(&pool, "u1", "Budget", "budget", "the money", None)
+            .await
+            .unwrap();
+        add_member(&pool, p.id, "u1", true).await.unwrap();
+        // Shared read-only with Bob.
+        add_member(&pool, p.id, "u2", false).await.unwrap();
+
+        let alice = list_for_user(&pool, "u1").await.unwrap();
+        assert_eq!(alice.len(), 1);
+        assert!(alice[0].is_owner);
+        assert!(alice[0].can_write);
+        assert_eq!(alice[0].owner_name, "alice");
+
+        let bob = list_for_user(&pool, "u2").await.unwrap();
+        assert_eq!(bob.len(), 1);
+        assert!(!bob[0].is_owner);
+        assert!(!bob[0].can_write);
+        assert_eq!(bob[0].owner_name, "alice"); // owner is alice (no display name)
+
+        // Mount rows carry both userid and username of the owner.
+        let mounts = list_for_user_mounts(&pool, "u2").await.unwrap();
+        assert_eq!(mounts.len(), 1);
+        assert_eq!(mounts[0].owner_user_id, "u1");
+        assert_eq!(mounts[0].owner_username, "alice");
+        assert_eq!(mounts[0].slug, "budget");
+        assert!(!mounts[0].can_write);
+
+        assert_eq!(capability_of(&pool, p.id, "u2").await.unwrap(), Some(false));
+        assert_eq!(capability_of(&pool, p.id, "nobody").await.unwrap(), None);
+
+        drop(pool);
+        let _ = std::fs::remove_dir_all(&dir);
+    }
+}

crates/skald-core/src/db/project_tickets.rs

@@ -1,149 +0,0 @@
-use anyhow::Result;
-use sqlx::SqlitePool;
-
-#[derive(Debug, Clone, sqlx::FromRow)]
-pub struct ProjectTicket {
-    pub id:           i64,
-    pub project_id:   i64,
-    pub title:        String,
-    pub description:  String,
-    pub status:       String,
-    pub agent_id:     String,
-    pub run_context:  Option<String>,
-    pub job_id:       Option<i64>,
-    pub result:       Option<String>,
-    pub error:        Option<String>,
-    pub created_at:   String,
-    pub started_at:   Option<String>,
-    pub completed_at: Option<String>,
-    pub session_id:   Option<i64>,
-}
-
-const SELECT: &str =
-    "SELECT pt.id, pt.project_id, pt.title, pt.description, pt.status, pt.agent_id,
-            pt.run_context, pt.job_id, pt.result, pt.error, pt.created_at,
-            pt.started_at, pt.completed_at,
-            COALESCE(sj.running_session_id,
-                     (SELECT session_id FROM job_runs
-                      WHERE job_id = pt.job_id ORDER BY id DESC LIMIT 1)
-            ) AS session_id
-     FROM project_tickets pt
-     LEFT JOIN scheduled_jobs sj ON sj.id = pt.job_id";
-
-pub async fn list_for_project(pool: &SqlitePool, project_id: i64) -> Result<Vec<ProjectTicket>> {
-    let rows = sqlx::query_as::<_, ProjectTicket>(sqlx::AssertSqlSafe(format!(
-        "{SELECT} WHERE pt.project_id = ? ORDER BY pt.id"
-    )))
-    .bind(project_id)
-    .fetch_all(pool)
-    .await?;
-    Ok(rows)
-}
-
-pub async fn get(pool: &SqlitePool, id: i64) -> Result<Option<ProjectTicket>> {
-    let row = sqlx::query_as::<_, ProjectTicket>(sqlx::AssertSqlSafe(format!(
-        "{SELECT} WHERE pt.id = ?"
-    )))
-    .bind(id)
-    .fetch_optional(pool)
-    .await?;
-    Ok(row)
-}
-
-pub async fn create(
-    pool:        &SqlitePool,
-    project_id:  i64,
-    title:       &str,
-    description: &str,
-    agent_id:    &str,
-    run_context: Option<&str>,
-) -> Result<ProjectTicket> {
-    let id = sqlx::query(
-        "INSERT INTO project_tickets (project_id, title, description, agent_id, run_context)
-         VALUES (?, ?, ?, ?, ?)",
-    )
-    .bind(project_id)
-    .bind(title)
-    .bind(description)
-    .bind(agent_id)
-    .bind(run_context)
-    .execute(pool)
-    .await?
-    .last_insert_rowid();
-
-    let row = sqlx::query_as::<_, ProjectTicket>(sqlx::AssertSqlSafe(format!(
-        "{SELECT} WHERE pt.id = ?"
-    )))
-    .bind(id)
-    .fetch_one(pool)
-    .await?;
-    Ok(row)
-}
-
-pub async fn delete(pool: &SqlitePool, id: i64) -> Result<bool> {
-    let n = sqlx::query("DELETE FROM project_tickets WHERE id = ?")
-        .bind(id)
-        .execute(pool)
-        .await?
-        .rows_affected();
-    Ok(n > 0)
-}
-
-pub async fn set_status(pool: &SqlitePool, id: i64, status: &str) -> Result<()> {
-    sqlx::query("UPDATE project_tickets SET status = ? WHERE id = ?")
-        .bind(status)
-        .bind(id)
-        .execute(pool)
-        .await?;
-    Ok(())
-}
-
-/// Mark as in_progress and record the scheduled job that is running it.
-pub async fn start(pool: &SqlitePool, id: i64, job_id: i64) -> Result<()> {
-    sqlx::query(
-        "UPDATE project_tickets
-         SET status = 'in_progress', job_id = ?, started_at = datetime('now')
-         WHERE id = ?",
-    )
-    .bind(job_id)
-    .bind(id)
-    .execute(pool)
-    .await?;
-    Ok(())
-}
-
-/// Mark as done or failed, recording result/error and timestamp.
-pub async fn complete(
-    pool:   &SqlitePool,
-    id:     i64,
-    result: Option<&str>,
-    error:  Option<&str>,
-) -> Result<()> {
-    let status = if error.is_some() { "failed" } else { "done" };
-    sqlx::query(
-        "UPDATE project_tickets
-         SET status = ?, result = ?, error = ?, completed_at = datetime('now')
-         WHERE id = ?",
-    )
-    .bind(status)
-    .bind(result)
-    .bind(error)
-    .bind(id)
-    .execute(pool)
-    .await?;
-    Ok(())
-}
-
-/// Reset a ticket back to todo, clearing all run state.
-pub async fn reset(pool: &SqlitePool, id: i64) -> Result<()> {
-    sqlx::query(
-        "UPDATE project_tickets
-         SET status = 'todo', job_id = NULL, result = NULL, error = NULL,
-             started_at = NULL, completed_at = NULL
-         WHERE id = ?",
-    )
-    .bind(id)
-    .execute(pool)
-    .await?;
-    Ok(())
-}

crates/skald-core/src/db/projects.rs

@@ -1,30 +1,33 @@
+//! Projects: shareable endeavours over an on-disk folder (registry / `system.db`).
+//!
+//! A project is an *endeavour* (owner + membership + metadata) that HAS a *place*:
+//! a folder `{WD}/projects/{owner_userid}/{slug}` bind-mounted into each member's
+//! container (the membership lives in [`super::project_members`]). This module owns
+//! the `projects` row itself. Registry table — metadata is **not** encrypted (§2/§6);
+//! only user↔agent conversations stay in the per-user encrypted DB.
+
 use anyhow::Result;
 use sqlx::SqlitePool;
 
+/// A project row.
 #[derive(Debug, Clone, sqlx::FromRow)]
 pub struct Project {
-    pub id:          i64,
-    pub name:        String,
-    pub path:        String,
-    pub description: String,
-    pub run_context: Option<String>,
-    pub created_at:  String,
-    pub updated_at:  String,
+    pub id:            i64,
+    pub owner_user_id: String,
+    /// Display name (free text).
+    pub name:          String,
+    /// Path component — the on-disk folder + agent-visible segment. Immutable.
+    pub slug:          String,
+    pub description:   String,
+    pub run_context:   Option<String>,
+    pub created_at:    String,
+    pub updated_at:    String,
 }
 
 const SELECT: &str =
-    "SELECT id, name, path, description, run_context, created_at, updated_at
+    "SELECT id, owner_user_id, name, slug, description, run_context, created_at, updated_at
      FROM projects";
 
-pub async fn list(pool: &SqlitePool) -> Result<Vec<Project>> {
-    let rows = sqlx::query_as::<_, Project>(sqlx::AssertSqlSafe(format!(
-        "{SELECT} ORDER BY updated_at DESC"
-    )))
-    .fetch_all(pool)
-    .await?;
-    Ok(rows)
-}
-
 pub async fn get(pool: &SqlitePool, id: i64) -> Result<Option<Project>> {
     let row = sqlx::query_as::<_, Project>(sqlx::AssertSqlSafe(format!("{SELECT} WHERE id = ?")))
         .bind(id)
@@ -33,19 +36,24 @@ pub async fn get(pool: &SqlitePool, id: i64) -> Result<Option<Project>> {
     Ok(row)
 }
 
+/// Creates a project and returns the new row. The caller must ensure `slug` is valid
+/// ([`is_valid_slug`]) and unique for `owner_user_id` ([`unique_slug`]); the owner is
+/// added to `project_members` separately (so mounts are uniform).
 pub async fn create(
-    pool:        &SqlitePool,
-    name:        &str,
-    path:        &str,
-    description: &str,
-    run_context: Option<&str>,
+    pool:          &SqlitePool,
+    owner_user_id: &str,
+    name:          &str,
+    slug:          &str,
+    description:   &str,
+    run_context:   Option<&str>,
 ) -> Result<Project> {
     let id = sqlx::query(
-        "INSERT INTO projects (name, path, description, run_context)
-         VALUES (?, ?, ?, ?)",
+        "INSERT INTO projects (owner_user_id, name, slug, description, run_context)
+         VALUES (?, ?, ?, ?, ?)",
     )
+    .bind(owner_user_id)
     .bind(name)
-    .bind(path)
+    .bind(slug)
     .bind(description)
     .bind(run_context)
     .execute(pool)
@@ -59,22 +67,21 @@ pub async fn create(
     Ok(row)
 }
 
+/// Updates the mutable fields. `slug` and `owner_user_id` are immutable — changing the
+/// slug would move the on-disk folder and break every member's path.
 pub async fn update(
     pool:        &SqlitePool,
     id:          i64,
     name:        &str,
-    path:        &str,
     description: &str,
     run_context: Option<&str>,
 ) -> Result<bool> {
     let n = sqlx::query(
         "UPDATE projects
-         SET name = ?, path = ?, description = ?, run_context = ?,
-             updated_at = datetime('now')
+         SET name = ?, description = ?, run_context = ?, updated_at = datetime('now')
          WHERE id = ?",
     )
     .bind(name)
-    .bind(path)
     .bind(description)
     .bind(run_context)
     .bind(id)
@@ -84,7 +91,7 @@ pub async fn update(
     Ok(n > 0)
 }
 
-/// Touch updated_at — called after every ticket operation so ordering by recency works.
+/// Touch `updated_at` so recency ordering works.
 pub async fn touch(pool: &SqlitePool, id: i64) -> Result<()> {
     sqlx::query("UPDATE projects SET updated_at = datetime('now') WHERE id = ?")
         .bind(id)
@@ -101,3 +108,57 @@ pub async fn delete(pool: &SqlitePool, id: i64) -> Result<bool> {
         .rows_affected();
     Ok(n > 0)
 }
+
+// ── Slug helpers ───────────────────────────────────────────────────────────────
+
+/// A slug must be a single safe path component: it becomes a real directory
+/// `{WD}/projects/{owner}/{slug}` and a `docker` mount target, so it may not be
+/// empty, be a `.`/`..` traversal, or contain a separator. Same rule as
+/// [`super::shared_folders::is_valid_folder_name`].
+pub fn is_valid_slug(slug: &str) -> bool {
+    !slug.is_empty()
+        && slug != "."
+        && slug != ".."
+        && !slug.contains('/')
+        && !slug.contains('\\')
+        && !slug.contains('\0')
+}
+
+/// Best-effort slugify of a display name: lowercase ASCII alphanumerics, every other
+/// run collapsed to a single `-`, trimmed. Falls back to `project` when nothing is left.
+pub fn slugify(name: &str) -> String {
+    let mut out = String::with_capacity(name.len());
+    let mut prev_dash = false;
+    for ch in name.chars() {
+        if ch.is_ascii_alphanumeric() {
+            out.push(ch.to_ascii_lowercase());
+            prev_dash = false;
+        } else if !prev_dash {
+            out.push('-');
+            prev_dash = true;
+        }
+    }
+    let trimmed = out.trim_matches('-');
+    if trimmed.is_empty() { "project".to_string() } else { trimmed.to_string() }
+}
+
+/// Returns a slug unique within `owner_user_id`, appending `-2`, `-3`, … on collision.
+pub async fn unique_slug(pool: &SqlitePool, owner_user_id: &str, base: &str) -> Result<String> {
+    let existing: Vec<String> = sqlx::query_scalar(
+        "SELECT slug FROM projects WHERE owner_user_id = ?",
+    )
+    .bind(owner_user_id)
+    .fetch_all(pool)
+    .await?;
+    if !existing.iter().any(|s| s == base) {
+        return Ok(base.to_string());
+    }
+    let mut n = 2;
+    loop {
+        let cand = format!("{base}-{n}");
+        if !existing.iter().any(|s| s == &cand) {
+            return Ok(cand);
+        }
+        n += 1;
+    }
+}

crates/skald-core/src/db/scheduled_jobs.rs

@@ -122,13 +122,6 @@ pub async fn create(
 }
 
 pub async fn delete(pool: &SqlitePool, id: i64) -> Result<bool> {
-    // Clear the soft back-reference from project_tickets first: its job_id FK has
-    // no ON DELETE action, so a ticket still pointing at this job would block the
-    // scheduled_jobs DELETE with a FOREIGN KEY constraint failure.
-    sqlx::query("UPDATE project_tickets SET job_id = NULL WHERE job_id = ?")
-        .bind(id)
-        .execute(pool)
-        .await?;
     sqlx::query("DELETE FROM job_runs WHERE job_id = ?")
         .bind(id)
         .execute(pool)

crates/skald-core/src/projects/mod.rs

@@ -1,106 +1,34 @@
-pub mod tickets;
-
-use std::sync::Arc;
-
-use anyhow::Result;
-use sqlx::SqlitePool;
-
-use crate::db::projects::{self, Project};
+use crate::db::projects::Project;
 use crate::run_context::RunContext;
 
-pub struct ProjectManager {
-    db: Arc<SqlitePool>,
-}
-
-impl ProjectManager {
-    pub fn new(db: Arc<SqlitePool>) -> Self {
-        Self { db }
-    }
-
-    pub async fn list(&self) -> Result<Vec<Project>> {
-        projects::list(&self.db).await
-    }
-
-    pub async fn get(&self, id: i64) -> Result<Option<Project>> {
-        projects::get(&self.db, id).await
-    }
-
-    pub async fn create(
-        &self,
-        name:        &str,
-        path:        &str,
-        description: &str,
-        run_context: Option<&RunContext>,
-    ) -> Result<Project> {
-        let rc_json = run_context.map(|rc| rc.to_db());
-        projects::create(&self.db, name, path, description, rc_json.as_deref()).await
-    }
-
-    pub async fn update(
-        &self,
-        id:          i64,
-        name:        &str,
-        path:        &str,
-        description: &str,
-        run_context: Option<&RunContext>,
-    ) -> Result<bool> {
-        let rc_json = run_context.map(|rc| rc.to_db());
-        projects::update(&self.db, id, name, path, description, rc_json.as_deref()).await
-    }
-
-    pub async fn delete(&self, id: i64) -> Result<bool> {
-        projects::delete(&self.db, id).await
-    }
-}
-
-/// Builds the runtime `RunContext` for working on `project`, layering project-runtime
-/// fields over an optional pre-resolved `base` RC (which carries static config set at
-/// creation time, e.g. `security_group`).
+/// Builds the runtime `RunContext` for working on `project`, layering the project's
+/// working directory + a context header over an optional pre-resolved `base` RC (which
+/// carries static config set at creation time, e.g. `security_group`).
 ///
-/// Runtime fields computed here:
-/// - `working_directory` — always set to `project.path`.
-/// - `allow_fs_writes`   — project tree + Skald's own `data/` directory.
-/// - `system_prompt`     — project-context fragments prepended before any stored ones.
-///
-/// Shared by `ProjectTicketManager::start` (background ticket jobs) and the interactive
-/// project-chat session provisioning, so both work with identical context.
-pub fn build_runtime_run_context(project: &Project, base: Option<RunContext>) -> RunContext {
+/// `working_directory` is the **agent path** `projects/{owner_username}/{slug}` — the
+/// same namespace the fs-tools and `execute_cmd` route through (the host/container
+/// mapping is handled by `UserFs`). Writes there are auto-allowed by the seeded
+/// `projects/*` approval rule and physically gated by the per-member read-only mount,
+/// so no host-path `allow_fs_writes` grant is needed (that was the old single-user
+/// model, which predated per-user containers).
+pub fn build_runtime_run_context(
+    project:        &Project,
+    owner_username: &str,
+    base:           Option<RunContext>,
+) -> RunContext {
     let mut rc = base.unwrap_or_default();
 
-    // Working directory is always the project path, overwritten at build time.
-    rc.working_directory = Some(project.path.clone());
+    rc.working_directory = Some(format!("projects/{owner_username}/{}", project.slug));
 
-    // Absolute path to Skald's own data directory (user personal data store).
-    let skald_data = std::env::current_dir()
-        .unwrap_or_default()
-        .join("data")
-        .to_string_lossy()
-        .into_owned();
-
-    // Grant write access to the project tree and Skald's data directory.
-    if !rc.allow_fs_writes.contains(&project.path) {
-        rc.allow_fs_writes.push(project.path.clone());
-    }
-    if !rc.allow_fs_writes.contains(&skald_data) {
-        rc.allow_fs_writes.push(skald_data.clone());
-    }
-
-    // Build runtime context fragments and prepend before any stored ones.
-    // Note: working directory is intentionally omitted here — the date/time/OS/WD
-    // tail block in MessageBuilder already reflects the effective WD from RunContext.
     let project_header = if project.description.is_empty() {
         format!("You are working on project \"{}\".", project.name)
     } else {
-        format!("You are working on project \"{}\". Description: {}", project.name, project.description)
-    };
-    let mut injected = vec![
-        project_header,
         format!(
-            "Personal user data is available at: {}. \
-             Consult it when the task requires knowledge about the user.",
-            skald_data
-        ),
-    ];
+            "You are working on project \"{}\". Description: {}",
+            project.name, project.description
+        )
+    };
+    let mut injected = vec![project_header];
     injected.extend(std::mem::take(&mut rc.system_prompt));
     rc.system_prompt = injected;
 

crates/skald-core/src/projects/tickets.rs

@@ -1,178 +0,0 @@
-use std::sync::Arc;
-
-use anyhow::{Result, anyhow};
-use sqlx::SqlitePool;
-use tokio_util::sync::CancellationToken;
-use tracing::warn;
-
-use core_api::system_bus::{SystemEvent, SystemEventBus};
-
-use crate::cron::TaskManager;
-use crate::db::{project_tickets, project_tickets::ProjectTicket, projects};
-use crate::run_context::RunContext;
-
-pub struct ProjectTicketManager {
-    db:       Arc<SqlitePool>,
-    task_mgr: std::sync::OnceLock<Arc<TaskManager>>,
-}
-
-impl ProjectTicketManager {
-    pub fn new(db: Arc<SqlitePool>) -> Arc<Self> {
-        Arc::new(Self {
-            db,
-            task_mgr: std::sync::OnceLock::new(),
-        })
-    }
-
-    pub fn set_task_manager(&self, tm: Arc<TaskManager>) {
-        let _ = self.task_mgr.set(tm);
-    }
-
-    /// Subscribe to the system bus and react to `JobCompleted` events whose
-    /// `origin_ref` starts with `"PROJECT_TASK:"`. Spawns a background task.
-    pub fn start_listener(
-        self: Arc<Self>,
-        system_bus: Arc<SystemEventBus>,
-        shutdown:   CancellationToken,
-    ) -> tokio::task::JoinHandle<()> {
-        tokio::spawn(async move {
-            let mut rx = system_bus.subscribe();
-            loop {
-                tokio::select! {
-                    _ = shutdown.cancelled() => break,
-                    res = rx.recv() => {
-                        match res {
-                            Ok(SystemEvent::JobCompleted { origin_ref: Some(ref s), result, error, .. })
-                                if s.starts_with("PROJECT_TASK:") =>
-                            {
-                                if let Some(tid) = s.strip_prefix("PROJECT_TASK:")
-                                    .and_then(|n| n.parse::<i64>().ok())
-                                {
-                                    if let Err(e) = self.on_job_completed(
-                                        tid,
-                                        result.as_deref(),
-                                        error.as_deref(),
-                                    ).await {
-                                        warn!(error = %e, ticket_id = tid, "ticket completion failed");
-                                    }
-                                }
-                            }
-                            Err(tokio::sync::broadcast::error::RecvError::Lagged(n)) => {
-                                warn!("ProjectTicketManager: system_bus lagged by {n} events");
-                            }
-                            Err(tokio::sync::broadcast::error::RecvError::Closed) => break,
-                            _ => {}
-                        }
-                    }
-                }
-            }
-        })
-    }
-
-    // ── CRUD ─────────────────────────────────────────────────────────────────
-
-    pub async fn list(&self, project_id: i64) -> Result<Vec<ProjectTicket>> {
-        project_tickets::list_for_project(&self.db, project_id).await
-    }
-
-    pub async fn get(&self, id: i64) -> Result<Option<ProjectTicket>> {
-        project_tickets::get(&self.db, id).await
-    }
-
-    pub async fn create(
-        &self,
-        project_id:  i64,
-        title:       &str,
-        description: &str,
-        agent_id:    &str,
-        run_context: Option<&RunContext>,
-    ) -> Result<ProjectTicket> {
-        let rc_json = run_context.map(|rc| rc.to_db());
-        let ticket = project_tickets::create(
-            &self.db, project_id, title, description, agent_id, rc_json.as_deref(),
-        ).await?;
-        projects::touch(&self.db, project_id).await?;
-        Ok(ticket)
-    }
-
-    pub async fn delete(&self, id: i64) -> Result<bool> {
-        let ticket = project_tickets::get(&self.db, id).await?;
-        let found  = project_tickets::delete(&self.db, id).await?;
-        if found {
-            if let Some(t) = ticket {
-                projects::touch(&self.db, t.project_id).await?;
-            }
-        }
-        Ok(found)
-    }
-
-    // ── Lifecycle ─────────────────────────────────────────────────────────────
-
-    /// Builds a runtime RunContext and starts the ticket as a background job.
-    ///
-    /// The stored RC (ticket → project) carries only static config set at creation
-    /// time (e.g. `security_group`). All runtime fields are computed here:
-    /// - `working_directory` — always set to `project.path`
-    /// - `allow_fs_writes`  — project tree + Skald's own `data/` directory
-    /// - `system_prompt`    — project context fragments prepended before any stored ones
-    pub async fn start(&self, ticket_id: i64) -> Result<()> {
-        let task_mgr = self.task_mgr.get()
-            .ok_or_else(|| anyhow!("ProjectTicketManager: task_manager not initialized"))?;
-
-        let ticket  = project_tickets::get(&self.db, ticket_id).await?
-            .ok_or_else(|| anyhow!("ticket {ticket_id} not found"))?;
-        let project = projects::get(&self.db, ticket.project_id).await?
-            .ok_or_else(|| anyhow!("project {} not found", ticket.project_id))?;
-
-        // Resolve base RC (ticket override → project default → empty), then layer the
-        // project-runtime fields (WD, fs-write grants, project-context system prompt).
-        // The stored RC carries only static config (e.g. security_group set at creation).
-        let base: Option<RunContext> =
-            ticket.run_context.as_deref().and_then(RunContext::from_db)
-            .or_else(|| project.run_context.as_deref().and_then(RunContext::from_db));
-        let rc = super::build_runtime_run_context(&project, base);
-
-        let origin_ref = format!("PROJECT_TASK:{ticket_id}");
-        let rc_json    = rc.to_db();
-
-        let job = task_mgr.spawn_async_job(
-            &ticket.title,
-            &ticket.description,
-            &ticket.description,
-            &ticket.agent_id,
-            Some(&rc_json),
-            &origin_ref,
-        )?;
-
-        project_tickets::start(&self.db, ticket_id, job.id).await?;
-        projects::touch(&self.db, ticket.project_id).await?;
-        Ok(())
-    }
-
-    /// Called when a `SystemEvent::JobCompleted` with matching `origin_ref` is received.
-    async fn on_job_completed(
-        &self,
-        ticket_id: i64,
-        result:    Option<&str>,
-        error:     Option<&str>,
-    ) -> Result<()> {
-        let project_id = project_tickets::get(&self.db, ticket_id).await?
-            .map(|t| t.project_id);
-        project_tickets::complete(&self.db, ticket_id, result, error).await?;
-        if let Some(pid) = project_id {
-            projects::touch(&self.db, pid).await?;
-        }
-        Ok(())
-    }
-
-    /// Reset a ticket back to todo, clearing all run state.
-    pub async fn reset(&self, ticket_id: i64) -> Result<()> {
-        let project_id = project_tickets::get(&self.db, ticket_id).await?
-            .map(|t| t.project_id);
-        project_tickets::reset(&self.db, ticket_id).await?;
-        if let Some(pid) = project_id {
-            projects::touch(&self.db, pid).await?;
-        }
-        Ok(())
-    }
-}

crates/skald-core/src/skald/accessors.rs

@@ -34,8 +34,6 @@ use crate::location::LocationManager;
 use crate::mcp::McpManager;
 use crate::memory::MemoryManager;
 use crate::plugin::PluginManager;
-use crate::projects::tickets::ProjectTicketManager;
-use crate::projects::ProjectManager;
 use crate::provider::ProviderRegistry;
 use crate::run_context::RunContextManager;
 use crate::secrets::SecretsStore;
@@ -86,7 +84,10 @@ impl Skald {
     ///
     /// Best-effort by contract: the membership row is already committed, so a Docker
     /// hiccup must not fail the caller; the state settles at the next login/boot.
-    pub async fn refresh_user_shared_folders(&self, user_id: &str) -> anyhow::Result<()> {
+    ///
+    /// Covers both shared-folder and project membership changes — both feed
+    /// `build_user_fs`, so a recreate reflows either mount set.
+    pub async fn refresh_user_mounts(&self, user_id: &str) -> anyhow::Result<()> {
         // New mount topology (graceful stop → remove → recreate from current rows).
         self.container().recreate(user_id).await?;
 
@@ -146,8 +147,6 @@ impl Skald {
 
     // Tasks
     pub fn cron(&self) -> &Arc<TaskManager> { &self.tasks.cron }
-    pub fn projects(&self) -> &Arc<ProjectManager> { &self.tasks.projects }
-    pub fn ticket_manager(&self) -> &Arc<ProjectTicketManager> { &self.tasks.ticket_manager }
 
     // Conversation
     pub fn manager(&self) -> &Arc<ChatSessionManager> { &self.conversation.manager }

crates/skald-core/src/skald/bundles.rs

@@ -30,8 +30,6 @@ use crate::location::LocationManager;
 use crate::mcp::McpManager;
 use crate::memory::MemoryManager;
 use crate::plugin::PluginManager;
-use crate::projects::tickets::ProjectTicketManager;
-use crate::projects::ProjectManager;
 use crate::provider::ProviderRegistry;
 use crate::run_context::RunContextManager;
 use crate::secrets::SecretsStore;
@@ -174,12 +172,10 @@ impl Integrations {
     }
 }
 
-// ── Tasks: cron + projects/tickets ──────────────────────────────────────────
+// ── Tasks: cron ──────────────────────────────────────────────────────────────
 
 pub(super) struct Tasks {
-    pub(super) cron:           Arc<TaskManager>,
-    pub(super) projects:       Arc<ProjectManager>,
-    pub(super) ticket_manager: Arc<ProjectTicketManager>,
+    pub(super) cron: Arc<TaskManager>,
 }
 
 impl Tasks {
@@ -193,11 +189,7 @@ impl Tasks {
         });
         let cron = TaskManager::new(Arc::clone(&rt.db), cron_tz, Arc::clone(&rt.system_bus));
 
-        let ticket_manager = ProjectTicketManager::new(Arc::clone(&rt.db));
-        let projects       = Arc::new(ProjectManager::new(Arc::clone(&rt.db)));
-        info!("project manager ready");
-
-        Tasks { cron, projects, ticket_manager }
+        Tasks { cron }
     }
 }
 
@@ -353,6 +345,7 @@ impl Conversation {
             "skald-ownerless",
             std::path::PathBuf::from("/root"),
             Vec::new(),
+            Vec::new(),
         ));
 
         let manager = Arc::new(ChatSessionManager::new(

crates/skald-core/src/skald/user_context.rs

@@ -51,7 +51,6 @@ use crate::inbox::Inbox;
 use crate::llm::LlmManager;
 use crate::mcp::{McpManager, McpProvider, UserMcpView};
 use crate::memory::MemoryManager;
-use crate::projects::tickets::ProjectTicketManager;
 use crate::run_context::RunContextManager;
 use crate::session::handler::{DEFAULT_MAX_PARALLEL_SUBAGENTS, DEFAULT_MAX_TOOL_ROUNDS};
 use crate::session::manager::ChatSessionManager;
@@ -74,7 +73,6 @@ pub struct UserContext {
     pub sessions:      Arc<ChatSessionManager>,
     pub chat_hub:      Arc<ChatHub>,
     pub cron:          Arc<TaskManager>,
-    pub tickets:       Arc<ProjectTicketManager>,
     pub approval:      Arc<ApprovalManager>,
     pub clarification: Arc<ClarificationManager>,
     pub elicitation:   Arc<ElicitationManager>,
@@ -291,29 +289,12 @@ impl UserContextFactory {
         cron.set_self_arc(Arc::clone(&cron));
         chat_hub.set_task_mgr(Arc::clone(&cron));
 
-        // Per-user ticket manager — wired to the per-user TaskManager so
-        // `start_ticket` spawns jobs in the user's own pool.
-        let tickets = ProjectTicketManager::new(Arc::clone(&pool));
-        tickets.set_task_manager(Arc::clone(&cron));
-
         // Per-user cron loop. `start()` observes the shutdown token, so it stops on
         // shutdown; adopting it lets the supervisor also join it. The name is leaked
         // to satisfy the `&'static str` label — bounded by the (small) user count.
         let name: &'static str = Box::leak(format!("cron:{user_id}").into_boxed_str());
         self.supervisor.adopt(name, Arc::clone(&cron).start(self.shutdown_token.clone()));
 
-        // Per-user ticket-listener: reacts to JobCompleted events for this user's
-        // tickets. All users' listeners receive the event (global system bus); only
-        // the one that owns the ticket does the UPDATE — others no-op on 0 rows.
-        let tname: &'static str = Box::leak(format!("tickets:{user_id}").into_boxed_str());
-        self.supervisor.adopt_one(
-            tname,
-            Arc::clone(&tickets).start_listener(
-                Arc::clone(&self.system_bus),
-                self.shutdown_token.clone(),
-            ),
-        );
-
         Ok(Arc::new(UserContext {
             user_id: user_id.to_string(),
             pool,
@@ -322,7 +303,6 @@ impl UserContextFactory {
             sessions: manager,
             chat_hub,
             cron,
-            tickets,
             approval,
             clarification,
             elicitation,

crates/skald-core/src/skald/wiring.rs

@@ -32,7 +32,6 @@ pub(super) fn wire(
     tasks.cron.set_session(Arc::clone(&conversation.manager));
     tasks.cron.set_hub(Arc::clone(&conversation.chat_hub));
     tasks.cron.set_self_arc(Arc::clone(&tasks.cron));
-    tasks.ticket_manager.set_task_manager(Arc::clone(&tasks.cron));
     conversation.chat_hub.set_task_mgr(Arc::clone(&tasks.cron));
     integrations.mcp.set_elicitation_handler(ElicitationBridge::new(Arc::clone(&interaction.elicitation)));
     info!("ChatHub initialised");

crates/skald-core/src/tools/fs/mod.rs

@@ -264,6 +264,7 @@ mod tests {
             "skald-test",
             PathBuf::from("/root"),
             vec![],
+            vec![],
         ))
     }
 
@@ -273,14 +274,17 @@ mod tests {
     #[cfg(unix)]
     #[test]
     fn host_path_resolves_and_contains() {
-        use core_api::user_fs::SharedMount;
+        use core_api::user_fs::{ProjectMount, SharedMount};
 
         let root = std::env::temp_dir().join(format!("skald-fsroot-{}", std::process::id()));
         let home = root.join("homes").join("u1");
         let shared = root.join("shared").join("family");
+        // Project owned by user `owner-id`, agent-visible as `projects/alice/budget`.
+        let project = root.join("projects").join("owner-id").join("budget");
         let _ = std::fs::remove_dir_all(&root);
         std::fs::create_dir_all(&home).unwrap();
         std::fs::create_dir_all(&shared).unwrap();
+        std::fs::create_dir_all(&project).unwrap();
 
         let fs = UserFs::new(
             "u1",
@@ -293,10 +297,18 @@ mod tests {
                 container: PathBuf::from("/root/shared/family"),
                 can_write: true,
             }],
+            vec![ProjectMount {
+                owner_username: "alice".into(),
+                slug: "budget".into(),
+                host: project.clone(),
+                container: PathBuf::from("/root/projects/alice/budget"),
+                can_write: false,
+            }],
         );
 
         let home_canon = canonicalize_for_policy(&home.to_string_lossy(), Path::new("/"));
         let shared_canon = canonicalize_for_policy(&shared.to_string_lossy(), Path::new("/"));
+        let project_canon = canonicalize_for_policy(&project.to_string_lossy(), Path::new("/"));
 
         // ~/… → private home (containment holds for a not-yet-existing file).
         let p = resolve_host_path(&fs, "~/notes.md").unwrap();
@@ -306,9 +318,15 @@ mod tests {
         // shared/{member} → the shared host dir
         let s = resolve_host_path(&fs, "shared/family/list.md").unwrap();
         assert!(path_under(&s, &shared_canon), "{s:?}");
+        // projects/{owner}/{slug} → the project host dir (two-segment routing)
+        let pr = resolve_host_path(&fs, "projects/alice/budget/plan.md").unwrap();
+        assert!(path_under(&pr, &project_canon), "{pr:?}");
 
         // a shared folder the user is NOT a member of → error
         assert!(resolve_host_path(&fs, "shared/secret/x.md").is_err());
+        // a project the user cannot reach (wrong owner/slug) → error
+        assert!(resolve_host_path(&fs, "projects/bob/budget/x.md").is_err());
+        assert!(resolve_host_path(&fs, "projects/alice/secret/x.md").is_err());
         // `..` cannot climb out of the home
         assert!(resolve_host_path(&fs, "~/../u2/secret.md").is_err());