For Slack-specific rollout steps (channel allow-lists, pilot runs, scope
checklist), read brain-runbook instead — this skill covers the
provider-agnostic source lifecycle.
Source Providers
create-source accepts exactly manual, generic, clips, slack,
granola, or github (sourceProviderSchema). There is no arbitrary/custom
provider string — a generic webhook-fed source uses provider: "generic"
with a sourceKey + minted ingestToken, not a made-up provider id.
pnpm --filter brain action create-source \
--title "Support call transcripts" \
--provider generic \
--sourceKey support-calls \
--visibility org
create-source returns ingestToken in the response once — it is stored
only as a SHA-256 hash (ingestTokenHash) on the source row, so it cannot be
retrieved again later. Surface it to the user immediately (e.g. for wiring
into an external system's webhook config) rather than assuming you can read
it back with get-source.
Source Health States
get-brain-health (readBrainHealth in server/lib/brain-health.ts) is the
single action to check before telling a user "your source is broken" or
"nothing has synced yet." Each source gets one deterministic health value:
| Health | Meaning |
|---|---|
error |
Source status === "error", has lastError, or its latest sync run failed. |
paused |
Source status is paused or archived. |
needs_setup |
Slack source with no configured channel allow-list yet (channelIds/channels/allowedChannels all empty). |
needs_sync |
Auto-sync-eligible provider (slack/granola/github) that has never completed a sync (lastSyncedAt is null). |
stale |
Past its computed nextSyncAt by more than a 15-minute grace window. |
healthy |
None of the above. |
get-brain-health also reports distillationQueue counts (pending,
failed, stale — a processing row untouched for 15+ minutes counts as
stale), proposals.pending, sources.attention (every non-healthy source),
and ordered setup.nextSteps. Read this before diagnosing a "why isn't X in
Brain yet" question — it is cheaper and more reliable than inspecting
individual sources by hand.
Running a Sync
sync-source --sourceId=<id>runs one source's connector immediately (requireseditoraccess on that source). Slack scans only its allow-listed channels; Granola polls accessible notes; GitHub imports approved repository issues/PRs.sync-due-sourcessweeps every accessible source whosenextSyncAthas passed. Prefer this for "catch everything up" requests instead of listing sources and callingsync-sourcein a loop.- Auto-sync only applies to
slack,granola, andgithubsources, and only when the source's own config doesn't explicitly setautoSync: false(sourceAutoSyncinbrain-health.ts).manual,generic, andclipssources are push/import-driven, not polled — there's nonextSyncAtto wait on for those.
Credential Resolution Order
Every provider-backed source resolves its credential in this order (never skip ahead or ask for a duplicate token if an earlier tier already has one):
- Granted
workspace_connections/workspace_connection_grantsforappId=brain— a shared credential another app or Dispatch already connected and granted to Brain. - Backward-compatible Brain-local SQL credentials (legacy, pre-workspace-grant sources).
- Registered vault secrets scoped to the same user/org/workspace.
Brain source credentials do not fall back to raw deploy-level environment
variables — .env/.env.local alone will not satisfy a source's credential
check. list-connection-providers reports per-provider readiness
(connected, granted, needs_grant, not_connected) plus credential
health, so check that before telling a user to paste a new token — if a
provider shows needs_grant, the fix is granting Brain access to the existing
connection, not creating a new one.
Editing And Removing Sources
update-sourceedits title, config, or visibility on an existing source.delete-sourceis a hard delete — there's no soft-archive alternative exposed as an action; settingstatus: "paused"viaupdate-sourceis the reversible way to stop a source without losing its captures.list-sources --provider=<p> --includeArchived=<bool>is scoped byaccessFilter— sharing/visibility rules apply the same way they do for knowledge and proposals.
Related Skills
brain— distillation, retrieval, and publish-tier mechanics once a capture exists.brain-runbook— Slack rollout steps, distillation worker internals, scheduled sync cron wiring, demo/eval seeding, and the generic ingest webhook payload shape.sharing— theaccessFilter/assertAccesspattern used throughout source and capture reads.