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fix(kanban): anchor board, workspaces, and worker logs at the shared Hermes root

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The Kanban board is documented as shared across all Hermes profiles, but
`kanban_db_path()` and `workspaces_root()` resolved through `get_hermes_home()`,
which returns the active profile's HERMES_HOME. When the dispatcher spawned a
worker with `hermes -p <profile> --skills kanban-worker chat -q "work kanban
task <id>"`, the worker rewrote HERMES_HOME to the profile subdirectory before
kanban_db.py imported, opening a profile-local `kanban.db` that did not contain
the dispatcher's task. `kanban_show` and `kanban_complete` failed; the
dispatcher's row stayed `running` and was retried/crashed. The same defect
applied to `_default_spawn`'s log directory and `worker_log_path`, so
`hermes kanban tail` did not see the worker's output.

Add `kanban_home()` in `hermes_cli/kanban_db.py` that resolves through
`HERMES_KANBAN_HOME` (explicit override) then `get_default_hermes_root()`,
which already understands the `<root>/profiles/<name>` and Docker / custom
HERMES_HOME shapes. Reroute `kanban_db_path`, `workspaces_root`, the
`_default_spawn` log directory, `gc_worker_logs`, and `worker_log_path`
through it. Profile-specific config, `.env`, memory, and sessions stay
isolated as before; only the kanban surface is shared.

Add a `TestSharedBoardPaths` regression class to `tests/hermes_cli/test_kanban_db.py`
covering: default install, profile-worker convergence, Docker custom HERMES_HOME,
Docker profile layout, explicit `HERMES_KANBAN_HOME` override, and a real
SQLite round-trip across dispatcher and worker HERMES_HOME perspectives.
The dispatcher/worker convergence tests fail on origin/main and pass after
the fix.

Update the `kanban.md` user-guide page and the misleading docstrings in
`kanban_db.py` to describe the shared-root behavior.

Fixes #19348
This commit is contained in:
GodsBoy 2026-05-03 22:33:11 +02:00 • committed by Teknium
parent 167b5648ea
commit f5bd77b3e1
3 changed files with 230 additions and 19 deletions
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2
hermes_cli/kanban.py
View file

@ -366,7 +366,7 @@ def build_parser(parent_subparsers: argparse._SubParsersAction) -> argparse.Argu
# --- log ---
p_log = sub.add_parser(
"log",
help="Print the worker log for a task (from $HERMES_HOME/kanban/logs/)",
help="Print the worker log for a task (from <kanban-root>/kanban/logs/)",
)
p_log.add_argument("task_id")
p_log.add_argument("--tail", type=int, default=None,

76
hermes_cli/kanban_db.py
View file

@ -1,8 +1,16 @@
"""SQLite-backed Kanban board for multi-profile collaboration.
The board lives at ``$HERMES_HOME/kanban.db`` (profile-agnostic on purpose:
multiple profiles on the same machine all see the same board, which IS the
coordination primitive).
The board lives at ``<root>/kanban.db`` where ``<root>`` is the **shared
Hermes root** (the parent of any active profile). Profiles intentionally
collapse onto a single board: it IS the cross-profile coordination
primitive. A worker spawned with ``hermes -p <profile>`` joins the same
board as the dispatcher that claimed the task. The same applies to
``<root>/kanban/workspaces/`` and ``<root>/kanban/logs/``.
In standard installs ``<root>`` is ``~/.hermes``. In Docker / custom
deployments where ``HERMES_HOME`` points outside ``~/.hermes`` (e.g.
``/opt/hermes``), ``<root>`` is ``HERMES_HOME``. Set ``HERMES_KANBAN_HOME``
to override the resolution explicitly (tests, unusual deployments).
Schema is intentionally small: tasks, task_links, task_comments,
task_events. The ``workspace_kind`` field decouples coordination from git
@ -61,16 +69,46 @@ _CTX_MAX_COMMENT_BYTES = 2 * 1024 # 2 KB per comment
# Paths
# ---------------------------------------------------------------------------
def kanban_home() -> Path:
"""Return the shared Hermes root that anchors the kanban board.
Resolution order:
1. ``HERMES_KANBAN_HOME`` env var when set and non-empty (explicit
override for tests and unusual deployments).
2. ``get_default_hermes_root()``, which already returns ``<root>``
when ``HERMES_HOME`` is ``<root>/profiles/<name>``, and returns
``HERMES_HOME`` directly for Docker / custom deployments.
The kanban board is shared across profiles **by design** (see the
module docstring). Resolving the kanban paths through the active
profile's ``HERMES_HOME`` would silently fork the board per profile,
which breaks the dispatcher / worker handoff.
"""
override = os.environ.get("HERMES_KANBAN_HOME", "").strip()
if override:
return Path(override)
from hermes_constants import get_default_hermes_root
return get_default_hermes_root()
def kanban_db_path() -> Path:
"""Return the path to ``kanban.db`` inside the active HERMES_HOME."""
from hermes_constants import get_hermes_home
return get_hermes_home() / "kanban.db"
"""Return the path to the shared ``kanban.db``.
Anchored at :func:`kanban_home`, not the active profile's
``HERMES_HOME``, so profile workers and the dispatcher converge on
the same board.
"""
return kanban_home() / "kanban.db"
def workspaces_root() -> Path:
"""Return the directory under which ``scratch`` workspaces are created."""
from hermes_constants import get_hermes_home
return get_hermes_home() / "kanban" / "workspaces"
"""Return the directory under which ``scratch`` workspaces are created.
Anchored at :func:`kanban_home` so workspace paths are stable across
profile workers spawned by the dispatcher.
"""
return kanban_home() / "kanban" / "workspaces"
# ---------------------------------------------------------------------------
@ -1516,12 +1554,15 @@ def archive_task(conn: sqlite3.Connection, task_id: str) -> bool:
def resolve_workspace(task: Task) -> Path:
"""Resolve (and create if needed) the workspace for a task.
- ``scratch``: a fresh dir under ``$HERMES_HOME/kanban/workspaces/<id>/``.
- ``scratch``: a fresh dir under ``<kanban-root>/kanban/workspaces/<id>/``,
where ``<kanban-root>`` is the shared Hermes root (see
:func:`kanban_home`). The path is the same for the dispatcher and
every profile worker, so handoff is path-stable.
- ``dir:<path>``: the path stored in ``workspace_path``. Created
if missing. MUST be absolute — relative paths are rejected to
prevent confused-deputy traversal where ``../../../tmp/attacker``
resolves against the dispatcher's CWD instead of a meaningful
root. Users who want a HERMES_HOME-relative workspace should
root. Users who want a kanban-root-relative workspace should
compute the absolute path themselves.
- ``worktree``: a git worktree at ``workspace_path``. Not created
automatically in v1 -- the kanban-worker skill documents
@ -2104,9 +2145,10 @@ def _default_spawn(task: Task, workspace: str) -> Optional[int]:
"chat",
"-q", prompt,
])
# Redirect output to a per-task log under HERMES_HOME/kanban/logs/.
from hermes_constants import get_hermes_home
log_dir = get_hermes_home() / "kanban" / "logs"
# Redirect output to a per-task log under <kanban-root>/kanban/logs/.
# Anchored at the shared kanban root, not the worker's profile home,
# so `hermes kanban tail` reads the same file the worker writes to.
log_dir = kanban_home() / "kanban" / "logs"
log_dir.mkdir(parents=True, exist_ok=True)
log_path = log_dir / f"{task.id}.log"
_rotate_worker_log(log_path, DEFAULT_LOG_ROTATE_BYTES)
@ -2591,8 +2633,7 @@ def gc_worker_logs(
"""Delete worker log files older than ``older_than_seconds``. Returns
the number of files removed. Kept separate from ``gc_events`` because
log files live on disk, not in SQLite."""
from hermes_constants import get_hermes_home
log_dir = get_hermes_home() / "kanban" / "logs"
log_dir = kanban_home() / "kanban" / "logs"
if not log_dir.exists():
return 0
cutoff = time.time() - older_than_seconds
@ -2614,8 +2655,7 @@ def gc_worker_logs(
def worker_log_path(task_id: str) -> Path:
"""Return the path to a worker's log file. The file may not exist
(task never spawned, or log already GC'd)."""
from hermes_constants import get_hermes_home
return get_hermes_home() / "kanban" / "logs" / f"{task_id}.log"
return kanban_home() / "kanban" / "logs" / f"{task_id}.log"
def read_worker_log(

171
tests/hermes_cli/test_kanban_db.py
View file

@ -436,3 +436,174 @@ def test_tenant_propagates_to_events(kanban_home):
# The "created" event should have tenant in its payload.
created = [e for e in events if e.kind == "created"]
assert created and created[0].payload.get("tenant") == "biz-a"
# ---------------------------------------------------------------------------
# Shared-board path resolution (issue #19348)
#
# The kanban board is a cross-profile coordination primitive: a worker
# spawned with `hermes -p <profile>` must read/write the same kanban.db
# as the dispatcher that claimed the task. These tests exercise the
# path-resolution layer directly and would have caught the regression
# where `kanban_db_path()` resolved to the active profile's HERMES_HOME.
# ---------------------------------------------------------------------------
class TestSharedBoardPaths:
"""`kanban_home`/`kanban_db_path`/`workspaces_root`/`worker_log_path`
must anchor at the **shared root**, not the active profile's HERMES_HOME."""
def _set_home(self, monkeypatch, tmp_path, hermes_home):
monkeypatch.setattr(Path, "home", lambda: tmp_path)
monkeypatch.setenv("HERMES_HOME", str(hermes_home))
monkeypatch.delenv("HERMES_KANBAN_HOME", raising=False)
def test_default_install_anchors_at_home_dot_hermes(
self, tmp_path, monkeypatch
):
# Standard install: HERMES_HOME == ~/.hermes, no profile active.
default_home = tmp_path / ".hermes"
default_home.mkdir()
self._set_home(monkeypatch, tmp_path, default_home)
assert kb.kanban_home() == default_home
assert kb.kanban_db_path() == default_home / "kanban.db"
assert kb.workspaces_root() == default_home / "kanban" / "workspaces"
assert (
kb.worker_log_path("t_demo")
== default_home / "kanban" / "logs" / "t_demo.log"
)
def test_profile_worker_resolves_to_shared_root(
self, tmp_path, monkeypatch
):
# Reproduces the bug: dispatcher uses ~/.hermes/kanban.db,
# worker spawned with -p <profile> previously resolved to
# ~/.hermes/profiles/<profile>/kanban.db. After the fix both
# converge on ~/.hermes/kanban.db.
default_home = tmp_path / ".hermes"
default_home.mkdir()
profile_home = default_home / "profiles" / "nehemiahkanban"
profile_home.mkdir(parents=True)
self._set_home(monkeypatch, tmp_path, profile_home)
# All four resolvers must anchor at the shared root, not the
# profile-local HERMES_HOME.
assert kb.kanban_home() == default_home
assert kb.kanban_db_path() == default_home / "kanban.db"
assert kb.workspaces_root() == default_home / "kanban" / "workspaces"
assert (
kb.worker_log_path("t_0d214f19")
== default_home / "kanban" / "logs" / "t_0d214f19.log"
)
# Sanity: the profile-local path that used to be returned is
# explicitly NOT what we resolve to anymore.
assert kb.kanban_db_path() != profile_home / "kanban.db"
def test_dispatcher_and_profile_worker_converge(
self, tmp_path, monkeypatch
):
# End-to-end convergence: resolve the path under each side's
# HERMES_HOME and confirm equality. This is the property the
# dispatcher/worker handoff actually depends on.
default_home = tmp_path / ".hermes"
default_home.mkdir()
profile_home = default_home / "profiles" / "coder"
profile_home.mkdir(parents=True)
# Dispatcher's perspective.
self._set_home(monkeypatch, tmp_path, default_home)
dispatcher_db = kb.kanban_db_path()
dispatcher_ws = kb.workspaces_root()
dispatcher_log = kb.worker_log_path("t_handoff")
# Worker's perspective (profile activated by `hermes -p coder`).
monkeypatch.setenv("HERMES_HOME", str(profile_home))
worker_db = kb.kanban_db_path()
worker_ws = kb.workspaces_root()
worker_log = kb.worker_log_path("t_handoff")
assert dispatcher_db == worker_db
assert dispatcher_ws == worker_ws
assert dispatcher_log == worker_log
def test_docker_custom_hermes_home_uses_env_path_directly(
self, tmp_path, monkeypatch
):
# Docker / custom deployment: HERMES_HOME points outside ~/.hermes.
# `get_default_hermes_root()` returns env_home directly when it
# is not a `<root>/profiles/<name>` shape and not under
# `Path.home() / ".hermes"`.
custom_root = tmp_path / "opt" / "hermes"
custom_root.mkdir(parents=True)
self._set_home(monkeypatch, tmp_path, custom_root)
assert kb.kanban_home() == custom_root
assert kb.kanban_db_path() == custom_root / "kanban.db"
def test_docker_profile_layout_uses_grandparent(
self, tmp_path, monkeypatch
):
# Docker profile shape: HERMES_HOME=/opt/hermes/profiles/coder;
# `get_default_hermes_root()` walks up to /opt/hermes because
# the immediate parent dir is named "profiles".
custom_root = tmp_path / "opt" / "hermes"
profile = custom_root / "profiles" / "coder"
profile.mkdir(parents=True)
self._set_home(monkeypatch, tmp_path, profile)
assert kb.kanban_home() == custom_root
assert kb.kanban_db_path() == custom_root / "kanban.db"
def test_explicit_override_via_hermes_kanban_home(
self, tmp_path, monkeypatch
):
# Explicit override: HERMES_KANBAN_HOME beats every other
# resolution rule.
default_home = tmp_path / ".hermes"
profile_home = default_home / "profiles" / "any"
profile_home.mkdir(parents=True)
override = tmp_path / "shared-board"
override.mkdir()
monkeypatch.setattr(Path, "home", lambda: tmp_path)
monkeypatch.setenv("HERMES_HOME", str(profile_home))
monkeypatch.setenv("HERMES_KANBAN_HOME", str(override))
assert kb.kanban_home() == override
assert kb.kanban_db_path() == override / "kanban.db"
assert kb.workspaces_root() == override / "kanban" / "workspaces"
def test_empty_override_falls_through(self, tmp_path, monkeypatch):
# Empty/whitespace override is treated as unset.
default_home = tmp_path / ".hermes"
default_home.mkdir()
monkeypatch.setattr(Path, "home", lambda: tmp_path)
monkeypatch.setenv("HERMES_HOME", str(default_home))
monkeypatch.setenv("HERMES_KANBAN_HOME", " ")
assert kb.kanban_home() == default_home
def test_dispatcher_and_worker_share_a_real_database(
self, tmp_path, monkeypatch
):
# Belt-and-suspenders: round-trip a task across the two
# HERMES_HOME perspectives via a real SQLite file. Without the
# fix the worker would open a different file and see no rows.
default_home = tmp_path / ".hermes"
default_home.mkdir()
profile_home = default_home / "profiles" / "nehemiahkanban"
profile_home.mkdir(parents=True)
# Dispatcher creates the board and a task.
self._set_home(monkeypatch, tmp_path, default_home)
kb.init_db()
with kb.connect() as conn:
task_id = kb.create_task(conn, title="cross-profile")
# Worker switches to the profile HERMES_HOME and reads.
monkeypatch.setenv("HERMES_HOME", str(profile_home))
with kb.connect() as conn:
task = kb.get_task(conn, task_id)
assert task is not None
assert task.title == "cross-profile"