ntasker

Lightweight local task tracker. Single-user, FastAPI + SQLite, Tabler.io UI.

In your AI coding agent

ntasker is agent-agnostic: every task can run on Claude Code, OpenCode or Pi (and the framework is extensible to more). It doubles as your agent's task memory -- the skill + /task command let the agent read and drive your tracker, no copy-paste:

"What should I work on next?" -- the agent grabs the open tasks for your current project folder and ranks them by urgency.
/task 34 -- pulls #34 into the session (title, description, tags), flips it to in progress, and warns you if you're sitting in the wrong project.
"Add a todo: ..." -- it files the task for you; drop a #34 anywhere later and it knows exactly which task you mean.
Finished an assigned task? The agent moves it to Review for you to sign off -- it never closes, deletes, or archives tasks on its own.

Run with an agent (web UI)

The flip side of the integration above: every task row has a run button -- showing that task's agent logo -- that opens a real interactive session -- the genuine TUI, embedded in the page via xterm.js -- running in the task's project directory and seeded with /task <id>. You answer the agent's questions, approve its tool prompts and interrupt it exactly as in a terminal; it is the same CLI with the same CLAUDE.md, skills, MCP and permissions.

Each task picks its agent (or inherits the default_agent setting); the run button only appears when that agent's CLI resolves. Sessions run in the background (the button shows a spinner, and re-opening reattaches to the live session); marking a task done ends its session. Needs the agent's CLI on PATH (or a configured path) and a POSIX pseudo-terminal, otherwise the button stays hidden. See docs/claude-runs.md and docs/agents.md.

Stack

Backend: FastAPI + uvicorn, Python stdlib sqlite3
Frontend: HTML + AlpineJS + Tabler.io. Default = jsDelivr CDN at runtime, with SRI hashes pinned in src/ntasker/assets.py. Optional fully-offline mode via ntasker assets fetch (writes into the user-data dir, never into the Python wheel). No build step.
Storage: SQLite at platformdirs.user_data_dir("nTasker")/tasks.db by default (Linux: ~/.local/share/nTasker/tasks.db)
Layout: PyPA src-layout, package src/ntasker/, entry point ntasker = ntasker.cli:main

Bind

Default 127.0.0.1:8766. Do not expose this on a network -- there is no auth. Override via ntasker serve --host <h> --port <p> if you really need to. This is a personal local tool, not a multi-user service.

DB path resolution

Highest precedence wins:

--db <path> flag on every CLI invocation.
Environment variable NTASKER_DB.
platformdirs.user_data_dir("nTasker") / "tasks.db" (default).

Per-OS defaults:

OS	Path
Linux	`~/.local/share/nTasker/tasks.db`
macOS	`~/Library/Application Support/nTasker/tasks.db`
Windows	`%LOCALAPPDATA%\nTasker\tasks.db`

Only the Linux path is regularly tested; the others are derived via platformdirs.

Setup

Install from PyPI, then run it as a background service that starts at login and restarts on crash -- systemd --user on Linux, launchd on macOS. User-scoped, no root:

uv tool install ntasker                  # install from PyPI
ntasker service install --auto-update    # run as a service + daily auto-update

Open http://127.0.0.1:8766 in a browser. That's it -- the service creates the database on first start, restarts on crash, and keeps itself up to date.

On Linux, run this once so the service survives logout:

loginctl enable-linger $USER

Manage it later:

ntasker service status            # install + active state
ntasker service start / stop      # start / stop the installed service
ntasker self-update               # upgrade from PyPI now, then restart

Full reference (uninstall, restart, update_command override, scheduling): docs/service.md.

Run in the foreground instead

No supervisor -- just run the server until you close it:

ntasker serve          # http://127.0.0.1:8766, Ctrl-C to stop

Repo-local development

cd /path/to/ntasker
make install   # uv sync
make run       # uv run ntasker serve --reload

For a global ntasker command that runs live from your working tree -- edits take effect immediately, no rebuild -- install it editable as a uv tool:

uv tool install -e .   # global `ntasker`, live from src/

This is independent of the PyPI install above; the two compete for the same ~/.local/bin/ntasker symlink and the same ntasker.service unit, so use one or the other as your active setup. To validate the real PyPI install without disturbing your repo setup, install it into a throwaway venv instead.

Settings

Required for the project sidebar to populate: configure where your project symlinks live.

Via UI: open /settings in the browser, fill in projects_dir, save. Via CLI: ntasker config set projects_dir ~/Projekte Via ENV: NTASKER_PROJECTS_DIR=/path/to/projects ntasker serve (overrides the DB value).

The validator requires the path to be absolute, exist, be a directory, and be readable.

How `projects_dir` is interpreted

ntasker tracks a directory. Each immediate subdirectory (or symlink to a project repo) inside projects_dir is exposed as a selectable Project in the UI sidebar and the project= API filter. Tasks can be assigned to one of these projects (by folder/symlink name) or stay cross-project (null). The directory listing is read on demand on every request -- there is no scan job and no DB-cached project list. Add or remove a folder/symlink in projects_dir and it shows up (or disappears) on the next reload.

Localization

ntasker ships with English (default) and German UI strings. Translation uses the Python stdlib gettext module; catalogs live at src/ntasker/locale/<lang>/LC_MESSAGES/ntasker.{po,mo}.

Pick the UI language via the language setting:

Value	Behaviour
`auto`	Parse the `Accept-Language` HTTP header; fallback English. Default.
`en`	Always English.
`de`	Always German.

ntasker config set language de       # pin to German
ntasker config unset language        # back to auto
NTASKER_LANGUAGE=en ntasker serve    # one-shot ENV override

CLI follows: setting > LANG/LC_MESSAGES env > English.

For development, regenerate catalogs after touching strings:

make i18n          # extract + update + compile
make i18n-init-de  # bootstrap a fresh language (idempotent)

Extraction uses Babel (dev-only dep; runtime needs only the stdlib). Catalog keywords: _, _lazy, t (Jinja shorthand), N_ (no-op marker for module-level constants).

Vendor assets (CDN default, opt-in offline)

Tabler core CSS, Tabler-Icons webfont, and Alpine.js are loaded from jsDelivr by default with SRI hashes pinned in src/ntasker/assets.py. The wheel ships no vendor binaries -- it stays under 100 KB.

For offline use, populate the user-data cache once:

ntasker assets fetch    # downloads + verifies SRI for each manifest entry
ntasker assets status   # shows mode + per-asset state
ntasker assets remove --yes  # wipes the cache

The cache lives at platformdirs.user_data_dir("nTasker") / "vendor" (Linux: ~/.local/share/nTasker/vendor). Mode selection is via the assets_mode setting:

Value	Behaviour
`cdn`	always load from jsDelivr (with SRI)
`local`	always load from the user-data cache (must run `assets fetch`)
`auto`	local if cache is complete, else CDN. Default.

ENV override: NTASKER_ASSETS_MODE=cdn ntasker serve. SRI is emitted in both modes (catches on-disk tampering for local too).

AI agent integration

ntasker is agent-agnostic -- it integrates with Claude Code, OpenCode and Pi, and adding another agent is one registry entry. The agent registry in src/ntasker/agents.py (one AgentSpec per agent) is the single source of truth for the binary, the spawn command, the config home, and the icon.

Each task carries an agent (a nullable field). NULL falls back to the default_agent setting, then to claude. Pick it in the new-task form, the edit dialog, or via the CLI:

ntasker add --title "..." --agent opencode    # create a task pinned to OpenCode
ntasker patch 34 --agent pi                    # repoint a task
ntasker patch 34 --agent ''                    # clear -> falls back to default_agent
ntasker config set default_agent opencode      # change the default for new tasks

ntasker ships a skill (SKILL.md) and slash-command loader (/task <id>) inside the package and installs them into each agent's own config home -- Claude ~/.claude, OpenCode ~/.config/opencode, Pi ~/.pi/agent:

ntasker agent list                       # all agents: CLI availability + integration status
ntasker agent install opencode           # install the SKILL.md + /task slash command
ntasker agent install pi --check         # status check: exit 0=identical, 1=drift, 2=not installed
ntasker agent install claude --force     # update after a version bump (timestamped backups)
ntasker agent install opencode --dry-run # show planned actions without writing
ntasker agent install pi --command-name todo  # use /todo instead of /task
ntasker agent install claude --home /tmp/test-home  # redirect to a non-default config home

install-claude-assets remains as a deprecated alias of ntasker agent install claude. The --command-name flag accepts only [A-Za-z0-9_-]+ (no slashes, no dots) to prevent path traversal.

Configurable CLI path. When the server runs with a narrower PATH than your shell (e.g. a systemd --user unit without nvm), point ntasker at an agent's CLI with the per-agent claude_bin / opencode_bin / pi_bin setting (ENV NTASKER_CLAUDE_BIN etc.). Empty auto-detects on PATH.

ntasker serve prints a one-liner to stderr at boot if installed assets are out of date relative to the running version. The /settings UI shows the same status as read-only cards (one per agent under an AI agent integration card); there is intentionally no HTTP write endpoint (installs are user-initiated via the CLI to avoid CSRF / DNS-rebinding write surface). Full reference: docs/agents.md.

CLI

Command	What it does
`ntasker init`	Create / migrate the schema at the active DB path
`ntasker serve`	Run the FastAPI server (defaults: 127.0.0.1:8766)
`ntasker list [filters]`	List tasks; supports `--project`, `--tag`, `--phase`, ...
`ntasker show <id>`	Show a single task; pair with `--json` for raw output
`ntasker add --title=...`	Create a task; optional `--project --phase --priority --tag --agent`
`ntasker done <id>`	Mark a task as done
`ntasker patch <id> [...]`	Patch arbitrary fields (`--title`, `--phase`, `--status`, ...)
`ntasker tag-add <id> <t>`	Append a tag
`ntasker tag-rm <id> <t>`	Remove a tag
`ntasker stats [filters]`	Tab counts (open/done/archive) honoring filters
`ntasker config list`	Show all settings
`ntasker config get <k>`	Read a setting
`ntasker config set <k> <v>`	Write a setting (validated)
`ntasker config unset <k>`	Remove a setting
`ntasker agent list`	List agents with CLI availability + `/task` integration status
`ntasker agent install <key>`	Install / check an agent's skill + `/task` slash-command (`claude`/`opencode`/`pi`)
`ntasker assets fetch / status / remove`	Manage the optional local vendor-asset cache
`ntasker service install / uninstall / status / start / stop`	Run ntasker as an OS service (systemd / launchd)
`ntasker self-update`	Upgrade the package from PyPI, then restart the service

Global flags:

--db <path> -- override the resolved DB path for this invocation.
--version -- print the package version and exit.

Most listing commands accept --json for machine-readable output.

Smoke test

make smoke

Runs an in-process FastAPI test client against a temp DB and exercises a couple of CLI subcommands via subprocess.

API

Method	Path	Notes
GET	`/`	The single-page task UI
GET	`/settings`	The settings UI
GET	`/api/changes`	Cheap change token (`{v}` = DB file mtime in ns). The UI polls it and refetches only when it changed, so CLI/API writes surface live. See docs/live-updates.md.
GET	`/api/projects`	`[{name, open_count}]`, `__none__` first; sets `X-Settings-Missing: projects_dir` if unconfigured
GET	`/api/tags`	`[{name, open_count}]`, sorted by `open_count DESC, name ASC`
POST	`/api/tags/cleanup`	Delete dangling tags (no `task_tags` row). Returns `{removed, removed_names}`. Idempotent.
GET	`/api/phases`	`[{value, label, open_count}]`, fixed workflow order: `wip`, `planned`, `later`, `__none__`
GET	`/api/priorities`	`[{value, label, open_count}]`, fixed order: `critical`, `high`, `normal`, `low`
GET	`/api/tasks`	Filters: `project` (multi), `tag` (multi, OR), `phase` (multi, OR; `__none__` = phase IS NULL), `priority` (multi), `status`, `archived`, `search`. Filters across params combine with AND.
GET	`/api/tasks/{id}`	Single task incl. `tags`
GET	`/api/stats`	Tab counts (`open`/`done`/`archive`), respects all filters
POST	`/api/tasks`	`{project?, title, description?, phase?, priority?, tags?}`
PATCH	`/api/tasks/{id}`	Any subset of `{title, description, project, phase, priority, status, archived, tags}` -- `tags` is a full replace
DELETE	`/api/tasks/{id}`	Hard delete (the UI archives by default)
GET	`/api/settings`	List all settings rows
GET	`/api/settings/{key}`	Single setting or 404
PUT	`/api/settings/{key}`	`{value: "..."}` -- 200 on accept, 400 if a registered validator rejects
DELETE	`/api/settings/{key}`	204 on success, 404 if not present
GET	`/api/agents`	Read-only registry feed: per-agent availability + `/task` integration status, plus the default
GET	`/api/claude-assets/status`	Read-only: `{installed, drift, package_version, claude_home, files[]}`

OpenAPI: http://127.0.0.1:8766/api/docs

Schema

CREATE TABLE tasks (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    project TEXT,
    title TEXT NOT NULL,
    description TEXT,
    status TEXT NOT NULL DEFAULT 'open',
    phase TEXT,
    priority TEXT NOT NULL DEFAULT 'normal',
    created_at TEXT NOT NULL DEFAULT (datetime('now')),
    completed_at TEXT,
    archived INTEGER NOT NULL DEFAULT 0,
    agent TEXT                       -- AI agent for this task; NULL = default_agent setting (then claude)
);
CREATE TABLE tags (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    name TEXT NOT NULL UNIQUE COLLATE NOCASE
);
CREATE TABLE task_tags (
    task_id INTEGER NOT NULL REFERENCES tasks(id) ON DELETE CASCADE,
    tag_id  INTEGER NOT NULL REFERENCES tags(id)  ON DELETE CASCADE,
    PRIMARY KEY (task_id, tag_id)
);
CREATE TABLE settings (
    key TEXT PRIMARY KEY,
    value TEXT NOT NULL,
    updated_at TEXT NOT NULL DEFAULT (datetime('now'))
);

Design notes

DB init on startup; pure idempotent CREATE TABLE IF NOT EXISTS. Legacy columns are dropped or added in try/except OperationalError blocks -- no Alembic, no migration files.
All SQL parameterised (?); no string interpolation.
Project list is read live each request from the symlinks under the configured projects_dir -- no caching.
Sidebar open_count values are absolute (always count all open + non-archived tasks), so toggling filters does not flicker the sidebar.
Hard-delete is intentionally rare; archive is the default. Deleting a task cascades through task_tags but leaves tags rows in place (zero-cost dangling).
Project / phase / tag / priority badges in a task row are clickable: each one toggles the matching filter. @click.stop prevents the parent row interactions.
Dates stored as UTC ISO strings, rendered locally via Intl.RelativeTimeFormat('de-DE').

Project home

GitHub: https://github.com/nerdocs/ntasker

Changelog

See CHANGELOG.md. Highlights:

1.2.0 -- Packaged Claude Code assets generalised (no user-specific routing/paths). AGPL-3.0-or-later license. README explains projects_dir semantics. /task accepts #-prefix. Task-ID click copies /task #<id> to clipboard. Existing installs need ntasker install-claude-assets --force after upgrade.
1.1.0 -- install-claude-assets CLI for shipping the Claude Code skill + /task slash-command from the package; read-only /api/claude-assets/status endpoint and Settings UI card; boot drift warning.
1.0.0 -- Renamed nerdocs-tracker -> ntasker; src-Layout; CLI with subcommands; settings module + UI; configurable projects_dir; DB moved to platformdirs default. Breaking.
0.4.0 -- priority field with sidebar filter and badge.
0.3.x -- Cache-buster, version badge, archive button polish.

License

Licensed under the GNU Affero General Public License, version 3 or later (AGPL-3.0-or-later). See LICENSE for the full text.

The Affero clause means: if you run a modified version of nTasker as a network service, you must offer the modified source code to its users. For local single-user use this has no practical impact.

Name		Name	Last commit message	Last commit date
Latest commit History 118 Commits
.github/workflows		.github/workflows
docs		docs
src/ntasker		src/ntasker
.gitignore		.gitignore
CHANGELOG.md		CHANGELOG.md
CLAUDE.md		CLAUDE.md
LICENSE		LICENSE
Makefile		Makefile
README.md		README.md
babel.cfg		babel.cfg
lifespan_test.py		lifespan_test.py
pyproject.toml		pyproject.toml
smoke_test.py		smoke_test.py
uv.lock		uv.lock

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ntasker

In your AI coding agent

Run with an agent (web UI)

Stack

Bind

DB path resolution

Setup

Run in the foreground instead

Repo-local development

Settings

How `projects_dir` is interpreted

Localization

Vendor assets (CDN default, opt-in offline)

AI agent integration

CLI

Smoke test

API

Schema

Design notes

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ntasker

In your AI coding agent

Run with an agent (web UI)

Stack

Bind

DB path resolution

Setup

Run in the foreground instead

Repo-local development

Settings

How projects_dir is interpreted

Localization

Vendor assets (CDN default, opt-in offline)

AI agent integration

CLI

Smoke test

API

Schema

Design notes

Project home

Changelog

License

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