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paseo/public-docs/hub/triggers/discord.md
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Mohamed BoudraandGitHub dfd18a44a7 Document Hub and let docs pages nest (#2864)
* feat(website): nest docs pages under landable groups

The docs sidebar could already render groups from subdirectories in
public-docs, but nothing used it because every doc was a flat file, and
two things stopped it being usable.

A group had no page of its own, so its label was only a toggle and its
name came from the directory name via formatLabel. A directory's
index.md now supplies the group's label, order, and href, which makes
the group landable and lets the label be authored rather than derived.

Categories and top-level directories named the same thing, so a
categorised doc at hub/index.md produced a group nested inside its own
category. Only directories below the top level become groups now.

Also fixes two behaviours in the sidebar:

- The open/closed effect assigned containsActive on every change, so a
  group you expanded to browse collapsed the moment you navigated
  anywhere else. Navigating in now opens a group and navigating away
  leaves it alone.
- The sidebar scrolls independently of the page and never scrolled the
  active entry into view, so loading or refreshing a page far down the
  list left the sidebar parked at the top with no visible position.

The group row is a single target: it navigates and expands, and
collapses when clicked again from the page it points at. A separate
chevron button would put two actions a few pixels apart.

* docs(hub): document Hub

Adds a Hub section covering what it is, how it works, daemons,
triggers, configuration, activity, and the two ways to run it.

The section separates using Hub from running it. Overview, quickstart,
daemons, triggers, and configuration hold regardless of who operates
the deployment; the self-hosting branch owns deploying the service and
creating the GitHub, Slack, and Discord apps it talks to. That split
falls on a real seam, because those apps are exactly what a hosted Hub
would own on your behalf. Hosted is a placeholder until it ships.

Each provider gets a trigger page carrying its events, filter
semantics, and the full paseo.event.* reference for the data a prompt
can read. That data is the thing a config author actually needs and
the thing they cannot get from anywhere else.

Every YAML block was parsed against the Hub config schema rather than
eyeballed, which kept several plausible-looking things out of the
docs: worktree prNumber takes a literal number and not a merge
variable, only daemon environments run today, and github.push has no
actor so it can never satisfy the required from_users filter.

Troubleshooting moves to order 90 so it stays last.

* refactor(website): let the active docs entry scroll itself into view

The layout queried the sidebar for the active entry after every
navigation, which coupled it to when that entry mounts. A link inside a
collapsed group only mounts once the group's own effect opens it, so
the query could run against a DOM that does not contain it yet.

Moving the scroll to the entry removes the ordering question rather
than answering it, and drops the ref and the cross-component query.

Reported by Greptile on #2864. The failure it described does not
reproduce: navigating from a page outside a collapsed group into one of
its children still scrolls correctly, verified with the group confirmed
collapsed and the sidebar forced to the top. The coupling was real even
though the bug was not.

* docs(hub): stop listing BETTER_AUTH_URL as required

It falls back to PASEO_CLOUD_PUBLIC_URL, so a deployment that sets the
public origin already has a correct auth base URL. Listing it as
required made the Fly recipe look incomplete when it was not.

Moved to optional with its default, and recorded what actually breaks
without BETTER_AUTH_SECRET: the auth routes close and nobody can sign
in.

Reported by Codex on #2864, which read the same inconsistency the other
way round and proposed adding the variable to the Fly example.

* docs(hub): attach a database in the Fly recipe

The Fly section showed inline config and a secrets command, neither of
which supplied DATABASE_URL. It defaults to localhost:5432, which on
Fly reaches nothing, so the documented deployment could not start.

fly postgres attach sets DATABASE_URL as a secret, so the step is the
attach itself rather than another variable to copy.

Reported by Codex on #2864.

* docs: align Hub self-hosting contract
2026-08-05 03:58:27 +08:00

3.9 KiB

title, description, nav, order, category
title description nav order category
Discord triggers Discord mentions as Hub triggers, snowflake filters, thread context, and the full paseo.event.discord data reference. Discord 67 Hub

Discord triggers

Events

on Fires when
discord.mention The bot is mentioned in a guild channel or thread

Mentioning a role the bot holds counts as mentioning the bot.

Filters

Discord filters take snowflake IDs. Turn on Developer Mode in Discord's advanced settings, then right-click a channel or user to copy its ID.

filters:
  guild: "123456789012345678"
  channels: ["234567890123456789"]
  from_users: ["345678901234567890"]

Quote them. Unquoted snowflakes parse as numbers and lose precision.

  • from_users matches the author's user id.
  • guild is resolved to the connection on activation.
  • channels matches the channel the message was posted in; in a thread, the thread's parent channel counts.
  • pattern matches the start of the text after the mention.

Replying

allow_outputs:
  - type: discord.reply

One plain-text reply per execution, in the triggering thread or channel.

Repository access

A Discord trigger has no implicit GitHub credential. Name the connection you want:

env:
  GH_TOKEN: ${{ paseo.connections.acme-github.token }}

Hub will not guess between several GitHub installations.

Data reference

The triggering message is paseo.event.discord.trigger_message:

Path Value
id Message snowflake
content Raw text, including the mention
body Text with the mention stripped, usually what you want
url Canonical message link
author Author identity, including the user id
channel Channel identity
thread Thread identity, or null outside a thread
created_at Message creation time
attachments Typed list, see below
referenced_message Identity of a replied-to message, or null

Each attachment has id, filename, url, content_type, and size. A referenced_message carries id, channel_id, and guild_id, without the message content.

Also available: paseo.event.discord.event_type and paseo.event.discord.guild.id.

Thread context

In a thread, paseo.event.discord.trigger_thread_context.messages holds the preceding messages, oldest first, never including the triggering message. Each entry exposes the same identity, content, author, channel, creation time, attachment, and reference fields as trigger_message.

This is how you give an agent the conversation rather than one line:

prompt: |
  Thread so far:
  ${{ paseo.event.discord.trigger_thread_context.messages }}

  Latest request:
  ${{ paseo.event.discord.trigger_message.body }}

Outside a thread the list is empty.

Example

triggers:
  - name: discord-fix
    on: discord.mention
    environment: dev
    filters:
      guild: "123456789012345678"
      channels: ["234567890123456789"]
      from_users: ["345678901234567890"]
    agent:
      provider: codex
      mode: full-access
    env:
      GH_TOKEN: ${{ paseo.connections.acme-github.token }}
    allow_outputs:
      - type: discord.reply
    prompt: |
      ${{ paseo.event.discord.trigger_message.body }}

      Context: ${{ paseo.event.discord.trigger_message.url }}
      Reply in the thread when you're done.