.. code:: console
onechat daemon
- onechat chat
+ onechat
+
+``onechat`` with no command is the same as ``onechat chat``. ``onechat
+help`` lists the commands.
The daemon owns the root agent in ``agent/`` in the data directory and
listens on the Unix socket ``onechat.sock`` there. In the client, each
``workdir`` is an absolute path, and its default is the home directory.
``agent/instructions.md`` holds the user's instructions: who they are,
how their files are organized, and how they want work done. The prompt
-ends with them, and a change applies at the next call.
+ends with them, and a change applies at the next call. The agent can
+propose a change to the file, and it makes the change only after the
+user agrees.
+
+**************
+ User service
+**************
+
+The Nix package includes ``share/systemd/user/onechat.service``. It runs
+``onechat daemon`` from that package, starts at login when enabled, and
+restarts 5 seconds after a failure. A stop sends SIGTERM to the daemon
+and allows up to 120 seconds for cleanup. Its output goes to the user
+journal. The service has the rights of the user, as the terminal daemon
+does.
+
+Build a package with a separate result link. Keep this link so that Nix
+does not collect the package while the service uses it:
+
+.. code:: console
+
+ nix build --out-link result-service
+ systemctl --user link --force "$PWD/result-service/share/systemd/user/onechat.service"
+ systemctl --user edit onechat.service
+
+In the editor, set the data directory with this drop-in. Replace
+``DATA_DIR`` with an absolute path to the data directory. Set the same
+``ONECHAT_DIR`` for each terminal client. Without a drop-in, the data
+directory rules above apply to the environment of the user manager, not
+to the development shell.
+
+.. code:: ini
+
+ [Service]
+ Environment="ONECHAT_DIR=DATA_DIR"
+
+The service does not read the environment of an open terminal. If the
+agent needs tools from a shell, set ``Environment="PATH=TOOLS_PATH"`` in
+the same drop-in, with ``TOOLS_PATH`` replaced by the complete search
+path, including bash. For the API endpoint, use
+``EnvironmentFile=ENV_FILE``, with ``ENV_FILE`` replaced by an absolute
+path to a mode 0600 file that sets ``OPENAI_API_KEY``. Keep secrets out
+of the unit and Nix sources.
+
+Use the existing data directory, or copy the development data before the
+first service start. For a copy, first stop the terminal daemon with
+Ctrl-C and wait for it to exit. Replace ``DATA_DIR`` below with a new,
+empty destination. If the development shell uses a custom
+``ONECHAT_DIR``, replace ``.devenv/onechat`` with that source. Copy the
+whole directory so that ``auth.json``, ``telegram.json``,
+``config.json``, ``agent/``, and ``whatsapp/`` stay together, including
+the WhatsApp session and its database files. The copy preserves the file
+modes and the source as a backup. Do not copy or use the same data from
+two running daemons.
+
+.. code:: console
+
+ install -d -m 0700 DATA_DIR
+ cp -a .devenv/onechat/. DATA_DIR/
+
+After the terminal daemon exits and the data is ready, enable and start
+the service:
+
+.. code:: console
+
+ systemctl --user daemon-reload
+ systemctl --user enable --now onechat.service
+ systemctl --user status onechat.service
+ ONECHAT_DIR=DATA_DIR ./result-service/bin/onechat
+ journalctl --user -u onechat.service -f
+
+After a pull, update the package and unit with:
+
+.. code:: console
+
+ git pull
+ bin/service-update
+
+The script builds with the same ``result-service`` link, reloads the
+user manager, and restarts the service only if it is active. The unit
+link follows ``result-service``, so no new link is needed.
+
+The service starts with the user manager at login, not at boot without a
+login. To stop it, or also remove its start at login:
+
+.. code:: console
+
+ systemctl --user stop onechat.service
+ systemctl --user disable onechat.service
**********
Telegram
memory tree summarizes it with model calls, which use the quota.
When the session holds a linked device, the daemon connects at its
-start, and after a network failure it connects again by itself. When a
-disconnection lasts 10 minutes, all clients get one notice, and one more
-when the connection comes back. When WhatsApp ends the connection for
-good, for example because another program uses the same session, all
-clients get a notice at once. When the user removes the device in the
-phone, the daemon deletes the session and tells all clients one time.
+start. If the first connection fails, it tries again after 2 seconds,
+then doubles the wait up to 5 minutes. The inbox and commands stay
+active during each wait. An unlink or a logout stops these retries.
+After a network failure of an open connection, the library connects
+again by itself. When a disconnection lasts 10 minutes, all clients get
+one notice, and one more when the connection comes back. When WhatsApp
+ends the connection for good, for example because another program uses
+the same session, all clients get a notice at once. When the user
+removes the device in the phone, the daemon deletes the session and
+tells all clients one time.
+
+*************************
+ Import WhatsApp history
+*************************
+
+Stop the daemon and finish all subagents before an import. Export each
+chat from WhatsApp as a ZIP with ``_chat.txt``. Keep the chat name in
+the ZIP name, such as ``WhatsApp Chat - Example.zip``. Read the plan
+first:
+
+.. code:: console
+
+ onechat import -n CHAT.zip OTHER.zip
+ onechat import CHAT.zip OTHER.zip
+
+``-n`` makes no model call and prints the chats, chat-day batches, local
+dates, cutoff, text bytes, merged message count, and estimated calls.
+The import keeps multiline text, system lines, and omitted-media
+markers. It maps the session's profile name to ``You``. Without that
+name, it keeps the senders as written and says so in the plan. An exact,
+unambiguous local contact or batch name supplies the chat ID when known.
+No network lookup is made.
+
+Each chat and local day becomes one work message marked ``(imported)``.
+Only messages before the first message of the earliest live WhatsApp
+batch enter the import. Live times have minute precision, so the cutoff
+excludes that whole minute. A chat-day already imported is skipped.
+Overlapping chat-days in the supplied ZIPs are refused. Review the
+exports before import: their text goes to the model as chat history.
+
+The import merges the full log in date order and builds its tree with
+real compactor calls, the agent prompt, and the agent cache key. It uses
+the probe's 660-call and 15-quota-point limits and prints the same usage
+report. Its estimate is about 1.3 calls per merged message, not a cost
+guarantee. A stopped or failed run leaves the agent unchanged. A new run
+starts over. Success keeps the other agent files and renames the old
+directory to ``agent-backup-TIMESTAMP`` before it installs the new one.
+Keep the backup until the new memory is checked, then start the daemon.
+Message IDs change to their positions in the merged log.
+
+***********
+ Schedules
+***********
+
+The agent sets reminders and timed tasks when the user asks for them,
+such as "remind me tomorrow at 9" or "every weekday at 8, tell me what
+my WhatsApp groups talked about". A schedule has a text, the task for
+the agent, and either one time or a cron expression. The agent also
+lists the schedules with their next times, and removes one when the user
+asks. Only the agent has the schedule tools, not its subagents.
+
+A cron expression has five fields: minute, hour, day of month, month,
+and day of week, where 0 and 7 are Sunday. A field is a comma list of
+``*``, ``N``, and ``N-M``, and ``*`` and ``N-M`` can have a step ``/S``,
+as in ``0 8 * * 1-5`` or ``*/15 9-17 * * *``. When both day fields start
+with something other than ``*``, a day matches when either field
+matches. Names such as ``MON``, macros such as ``@daily``, the
+characters ``? L W #``, and ``N/S`` are refused. The runs must be at
+least 5 minutes apart, because each run is a full turn that uses the
+quota, so ``*/5 * * * *`` is the shortest schedule.
+
+The times use the time zone of the machine. A time that the clock skips
+at the start of daylight saving time runs later by the length of the
+skip. A time that the clock repeats at its end runs once, at its first
+occurrence.
+
+At its time, a schedule goes to the chat as a work message that starts
+with ``[Schedule ID]``, with its time and its text, and it starts a
+turn. The message ends with a line that tells the agent to end its turn
+with an empty reply when nothing needs the user. The terminal client
+shows the message, and Telegram shows only the reply. After its run, a
+one-time schedule goes, and a repeating schedule gets its next time.
+
+``agent/schedules.json``, with mode 0600, holds the schedules. Each
+change writes it before the tool answers, so the schedules survive a
+restart. A schedule that came due while the daemon was stopped runs once
+at the next start, with its original time and a line that says that the
+run is late. A repeating schedule that missed several times runs once. A
+crash just after a run goes to the chat can make the run repeat once.
*******
Probe
projects / onechat / blobdiff