feat(slack): launch v2 triggers and backfill custom bots by TheodoreSpeaks · Pull Request #6873 · simstudioai/sim

TheodoreSpeaks · 2026-08-19T23:59:22Z

Summary

launch Slack v2 with custom-bot triggers and gate native OAuth behind the existing extended-scopes environment setting
backfill legacy Slack credentials while preserving existing webhook URLs through credential-based fan-out
add bounded, idempotent migration behavior and focused webhook coverage

Type of Change

Feature

Testing

245 focused Vitest tests
Sim and DB type-checks
full lint and 29 repository audits
local migration dry run

Checklist

Code follows project style guidelines
Self-reviewed my changes
Tests added/updated and passing
No new warnings introduced
I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

vercel · 2026-08-19T23:59:28Z

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Project	Deployment	Actions	Updated (UTC)
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cursor · 2026-08-19T23:59:34Z

PR Summary

High Risk
Touches Slack webhook authentication, credential storage, and a live data migration that rewrites bot secrets and routing. Failures here can drop or duplicate event delivery.

Overview
Releases slack_v2 as the default Slack block and trigger. The legacy block stays executable but hidden. Custom bots are generally available; the native Sim Slack app trigger is gated by SLACK_EXTENDED_SCOPES / NEXT_PUBLIC_SLACK_EXTENDED_SCOPES. Action-only bots may omit a signing secret; event ingest still requires one.

Migrates pasted bot tokens into reusable slack-custom-bot credentials via a dry-run-then-live script. Legacy webhook URLs are preserved: migrated rows are marked ingressMode: legacy_custom_bot and fan out by credential routing key instead of duplicating secrets. Path lookup now authenticates those aliases through the custom-bot ingress path, with bounded fan-out and fail-fast on partial markers.

Webhook lookup also caps targets per path/routing key. Docs and integration availability now treat Slack as slack_v2 with the redesigned event trigger.

^{Reviewed by Cursor Bugbot for commit 5f2a0bb. Bugbot is set up for automated code reviews on this repo. Configure here.}

greptile-apps · 2026-08-20T00:02:41Z

Greptile Summary

The PR launches the Slack v2 trigger, adds reusable custom-bot ingress and legacy credential backfill, and gates native Slack OAuth triggers behind extended scopes.

Routes native and custom-bot events through shared bounded fan-out and acknowledgment handling.
Migrates legacy Slack trigger credentials while preserving existing webhook paths.
Aligns Slack block metadata, credential selection, deployment configuration, documentation, and tests.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains; the previously reported Slack acknowledgment and retry issues are resolved across native, custom-bot, and migrated legacy ingress paths.

Important Files Changed

Filename	Overview
apps/sim/lib/webhooks/slack-dispatch.ts	Centralizes bounded Slack fan-out and consistently reduces dispatch outcomes into acknowledgment or retry responses.
apps/sim/app/api/webhooks/trigger/[path]/route.ts	Adds credential-based handling for migrated legacy Slack webhook paths while preserving direct webhook delivery.
apps/sim/app/api/webhooks/slack/custom/[credentialId]/route.ts	Delegates custom-bot verification and dispatch to shared ingress helpers and returns the reduced dispatch result.
apps/sim/lib/webhooks/slack-custom-ingress.ts	Implements reusable custom-bot credential verification, routing-key lookup, and dispatch.
packages/db/scripts/migrate-slack-custom-bots.ts	Adds bounded, resumable migration behavior for legacy Slack custom-bot credentials and webhook routing metadata.
apps/sim/lib/webhooks/providers/slack.ts	Makes queue-admission failures retryable by returning a non-success provider response.
apps/sim/blocks/blocks/slack.ts	Releases the Slack v2 block and aligns its trigger and authentication metadata.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  S[Slack delivery] --> I{Ingress}
  I -->|Native app| N[Team-based lookup]
  I -->|Custom bot| C[Credential-based lookup]
  I -->|Migrated legacy URL| L[Verify credential aliases]
  N --> F[Bounded webhook fan-out]
  C --> F
  L --> F
  F --> R{Dispatch results}
  R -->|Queued or intentionally ignored| A[HTTP 200 acknowledgment]
  R -->|All targets fail| E[Non-2xx retry response]

_{Reviews (7): Last reviewed commit: "fix(slack): retry failed webhook deliver..." | Re-trigger Greptile}

TheodoreSpeaks · 2026-08-20T00:10:46Z

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TheodoreSpeaks · 2026-08-20T00:10:49Z

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TheodoreSpeaks · 2026-08-20T00:15:08Z

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TheodoreSpeaks · 2026-08-20T00:15:12Z

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TheodoreSpeaks · 2026-08-20T00:28:16Z

@greptile

TheodoreSpeaks · 2026-08-20T00:28:22Z

@cursor review

cursor

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Comment @cursor review or bugbot run to trigger another review on this PR

^{Reviewed by Cursor Bugbot for commit 12513cb. Configure here.}

cursor

Cursor Bugbot has reviewed your changes using high effort and found 1 potential issue.

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TheodoreSpeaks · 2026-08-25T08:33:43Z

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TheodoreSpeaks · 2026-08-25T08:33:51Z

@cursor review

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TheodoreSpeaks · 2026-08-25T08:44:50Z

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TheodoreSpeaks · 2026-08-25T08:45:00Z

@cursor review

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TheodoreSpeaks · 2026-08-25T08:58:59Z

@greptile

TheodoreSpeaks · 2026-08-25T08:59:00Z

@cursor review

cursor · 2026-08-25T08:59:02Z

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greptile-apps Bot reviewed Aug 20, 2026

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TheodoreSpeaks force-pushed the feat/migrate-slack-ff branch from 83137a3 to e421379 Compare August 20, 2026 00:09

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Comment thread packages/db/scripts/migrate-slack-custom-bots.ts

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TheodoreSpeaks force-pushed the feat/migrate-slack-ff branch from 8c78e18 to 12513cb Compare August 20, 2026 00:26

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TheodoreSpeaks force-pushed the feat/migrate-slack-ff branch from 12513cb to 5f2a0bb Compare August 23, 2026 00:52

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Comment thread apps/sim/lib/webhooks/deploy.ts

TheodoreSpeaks added 4 commits August 25, 2026 01:28

feat(slack): launch v2 triggers and backfill custom bots

9a2da7e

fix(slack): propagate legacy webhook dispatch failures

fc02c3c

fix(slack): continue shared legacy webhook fanout

12c865b

fix(slack): acknowledge filtered webhook deliveries

bcfac33

TheodoreSpeaks added 3 commits August 25, 2026 01:28

fix(slack): finalize custom bot migration rollout

7971ade

fix(slack): dedupe migrated bots per workflow

cd574c4

fix(slack): harden custom bot rollout

808473b

TheodoreSpeaks force-pushed the feat/migrate-slack-ff branch from 5f2a0bb to 808473b Compare August 25, 2026 08:32

greptile-apps Bot reviewed Aug 25, 2026

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Comment thread apps/sim/app/api/webhooks/slack/custom/[credentialId]/route.ts Outdated

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fix(slack): acknowledge permanently ignored deliveries

1e60ab3

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greptile-apps Bot reviewed Aug 25, 2026

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Comment thread apps/sim/app/api/webhooks/slack/custom/[credentialId]/route.ts Outdated

fix(slack): retry failed webhook deliveries

3567deb

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TheodoreSpeaks merged commit 4c0bd94 into staging Aug 25, 2026
29 checks passed

TheodoreSpeaks deleted the feat/migrate-slack-ff branch August 25, 2026 18:11

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TheodoreSpeaks commented Aug 19, 2026

Summary

Type of Change

Testing

Checklist

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Greptile Summary

Confidence Score: 5/5

Important Files Changed

Flowchart

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