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ci: add Slack notification for maintainer PRs#2155

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felixweinberger wants to merge 1 commit intov1.xfrom
fweinberger/pr-notify-slack-v1x
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ci: add Slack notification for maintainer PRs#2155
felixweinberger wants to merge 1 commit intov1.xfrom
fweinberger/pr-notify-slack-v1x

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@felixweinberger
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Motivation and Context

Reduce GitHub notification noise for SDK maintainers by adding a dedicated Slack signal channel. When an MCP team member opens a PR and CI passes, a random reviewer from a configured pool is tagged in #mcp-sdk-stamps.

Counterpart of #2154 for the v1.x branch.

How Has This Been Tested?

Tested the Slack webhook manually with sample payloads — message format and tagging confirmed working.

Breaking Changes

None. This adds an optional CI job that only runs when repo secrets are configured.

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to change)
  • Documentation update

Checklist

  • I have read the MCP Documentation
  • My code follows the repository's style guidelines
  • New and existing tests pass locally
  • I have added appropriate error handling
  • I have added or updated documentation as needed

Additional context

Requires two repo secrets (same as main branch):

  • MAINTAINER_MAP: JSON with triggers (GitHub usernames of team members) and reviewers (pool with Slack IDs)
  • SLACK_WEBHOOK_URL: Slack workflow webhook URL

Add a notify job to the PR checks workflow that posts to Slack when an MCP
team member opens a non-draft PR and CI passes. A random reviewer from a
configured pool is tagged for review.

Requires two repo secrets:
- MAINTAINER_MAP: JSON with triggers (team members) and reviewers (notification pool)
- SLACK_WEBHOOK_URL: Slack workflow webhook URL
@felixweinberger felixweinberger force-pushed the fweinberger/pr-notify-slack-v1x branch from 52bcf1b to c40a8d2 Compare February 27, 2026 12:40
@felixweinberger felixweinberger marked this pull request as draft February 27, 2026 12:48
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