Quick reference

#Mention syntax

Syntax	What it points to
@task.<number>	A task (by its task number)
@collection.<name>	A whole collection
@collection.<name>.<id>	One specific record (UUID or record number)
@file.<name>	A file, always its latest state
@file.<name>.v<N>	One specific past state of the file
@agent.<name>	An agent, and written in a human comment it runs that agent
@user.<username>	A user
@flow.<name>	A flow (the old @schedule. spelling is still recognised)
@calendar.<name>	A calendar event

A mention is a pointer, not a copy. The content is not injected into the context automatically, and the agent pulls it with the matching read_* tool when it needs it. More in Memory and context.

Clicking a mention. Clicking a mention inside text takes you to what it points to. Tasks, collection records and files open in a side panel over the page you are on, so you never lose your place. Collections, agents, flows and calendar events open on their own page. The header of the side panel carries a link to where that thing belongs, which is the project for a task and the collection for a record.

#States and types

Kanban states: backlog · todo · queued · in_progress · review · done · error

Priorities: low · medium · high · urgent

Checklist step states: pending · in_progress · done · error

Assignment types: orbi (Orchestrator) · agent · user

Flow run states: running · done · error

Roles: admin · member · viewer

Chat scope: private · project

Collection field types: text · textarea · html · number · currency · percent · rating · date · checkbox · url · email · phone · enum · tags · file · image · user · relation · ai

View formats: grid (table) · kanban · gallery · calendar

File kinds: text document · image · video · audio · other

File sources: user upload · agent output · MCP output

Webhook events: task.created · task.state_changed · task.assigned · task.updated · task.deleted · task.comment_created · task.checklist_item_changed · task.attachment_added · record.created · record.updated · record.deleted · file.created · file.version_added · agent_run.started · agent_run.completed · flow_run.started · flow_run.completed · member.joined · member.left · member.role_changed · credits.low · credits.exhausted — the old names still work: task.done · task.review · task.error · schedule_job.completed (explained in Outgoing connections)

Webhook headers: X-Orbi-Event · X-Orbi-Event-Id · X-Orbi-Delivery · X-Orbi-Signature · X-Orbi-Timestamp

Inbound trigger responses: 202 accepted · 202 skipped_quota · 202 skipped_duplicate · 401 (signature) · 404 (no such token, or inactive) · 400 (invalid JSON or a malformed attachment) · 413 (body without attachments > 64 KB, or attachment limit exceeded) · 429 (per-minute rate limit)

Model tiers: flagship · standard · light

LLM providers: Anthropic · OpenAI · Google (Gemini) · OpenRouter (+ Ollama: embeddings only)

#Keyboard shortcuts

Shortcut	What it does
⌘K / Ctrl+K	Open or close the chat panel (anywhere in the app)
⇧N / Shift+N	Open a new task (anywhere in the app, and you pick the board in the form)
Enter	Create the card while you are in the title field of the new task form
⌘↵ / Ctrl+↵	Create the card from any field of the new task form
/	Open search (anywhere in the app, and it does nothing while you are typing)
⌘O / Ctrl+O	Open or close the focus picker (pick one piece of work and every screen shows only what comes from it, see Focus)
⌘B / Ctrl+B	Collapse or expand the left menu (on a narrow screen, open or close the drawer, and it does nothing while you are typing)
?	Open or close the keyboard shortcuts table (does nothing while you are typing)
Space	Open the record of the selected row in a table
← / →	Move to the neighbouring record in the record dialog, or the neighbouring file in the file detail window
← → ↑ ↓	Change day or week in the date picker (PageUp/PageDown for months)
Enter	Confirm the selected day in the date picker
/	Focus the search box in the Help Center
Esc	Close the open drawer or dialog

#System limits

Limit	Value
Single file upload size	100 MB
Workspace context	4000 characters
Project description	2000 characters
Channel purpose	500 characters
Collection import body size	200 MB
Avatar size	5 MB (png, jpg, webp, gif)
Maximum cycles per task	10 (or the plan limit, if it is lower)
Maximum agent runs per task	30 (or the plan limit, if it is lower)
Automatic retry	1 attempt, then error
Past states kept with their content	10
Time in the trash	30 days
read_file / fetch_web_page chunk	12,000 characters (30,000 at most)
PDF text extraction	500 pages
Excel row extraction	5,000 rows per sheet
OCR on a scanned PDF	30 pages
Upper limit on extracted text	2,000,000 characters
web_search result count	8
Memory note length	500 characters
Workspace memory cap	1,000 active notes

#Built-in tools

There are 54 built-in tools. For the full list and their groups, see Tools and integrations.

#The four things that trigger execution

1. Moving a task into Queued
2. An @agent.<name> mention in a human comment
3. A flow trigger (cron, reminder or event)
4. An HTTP POST from an external system to an inbound trigger

Nothing else runs an agent.