GitHub PR Review Triage and Slack Notification

Monitor open pull requests across repositories, identify stale or unreviewed PRs, and send targeted Slack reminders to the assigned reviewers with context about what needs attention.

How the workflow runs

The scenario uses specific integration tools at each step, while Metorial keeps access scoped and visible.

  1. 1

    List Stale Open Pull Requests

    Query open pull requests across the relevant repositories and filter for those that have been open beyond a threshold with no recent review activity.

    • github.list_pull_requests
    • github.list_commits
  2. 2

    Gather PR Context

    For each stale PR, fetch full details including description, labels, linked issues, and current assignees to include meaningful context in the reminder.

    • github.get_issue
  3. 3

    Resolve Reviewer Slack Identities

    Map GitHub reviewer usernames to Slack user profiles so reminders can be sent to the correct individuals.

    • slack.get_user_info
  4. 4

    Check for Recent Reminders

    Search Slack message history to confirm a reminder was not already sent in the past 24 hours before sending another.

    • slack.search_messages
  5. 5

    Send Personalized Review Reminders

    Send a direct message to each reviewer summarizing the PR title, age, repository, and a direct link, prompting them to review or comment.

    • slack.send_message

Integrations used in this scenario

github

List Pull Requests

Retrieve all open pull requests across repositories, filtered by age and review status.

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github

Get Issue

Fetch full PR details including description, labels, and linked issues for context.

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github

List Commits

Check recent commit activity on a PR branch to assess whether work is still in progress.

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slack

Get User Info

Look up Slack user profiles for GitHub assignees to map reviewer identities across systems.

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slack

Send Message

Send targeted review reminders to individual reviewers via Slack DM with PR context.

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slack

Search Messages

Check whether a reminder was already sent recently to avoid spamming reviewers.

View details

Connected systems

Integration

GitHub

Manage repositories, issues, and pull requests. Create and configure branches, star repositories, review code, and merge changes. Automate CI/CD workflows with GitHub Actions, manage workflow runs, secrets, and artifacts. Track issues with labels, milestones, and assignees. Search across code, repositories, issues, and users. Manage organizations, teams, and memberships. Create and manage projects, gists, packages, deployments, and environments. Access security alerts including code scanning, secret scanning, and Dependabot alerts. Read and write file contents in repositories. Manage webhooks, notifications, and codespaces.

View GitHub

Integration

Slack

Slack: connect with bot OAuth or user OAuth. Send, update, delete, and schedule messages; list and cancel scheduled messages; open DMs and group DMs; manage conversations, members, files, reactions, pins, bookmarks, reminders, user groups, and user status; search messages and files with user scopes; and retrieve user, conversation, and workspace info.

View Slack

Expected outcomes

Outcome 1

Stale PRs are surfaced automatically without manual engineering manager review

Metorial keeps the workflow connected, governed, and traceable across the systems involved.

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Outcome 2

Reviewers receive context-rich reminders that reduce time to first review

Metorial keeps the workflow connected, governed, and traceable across the systems involved.

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Outcome 3

Reminder deduplication prevents notification fatigue

Metorial keeps the workflow connected, governed, and traceable across the systems involved.

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Outcome 4

PR cycle time decreases as bottlenecks are identified and escalated early

Metorial keeps the workflow connected, governed, and traceable across the systems involved.

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How Metorial powers this scenario

Metorial is the governed connection layer between your AI agents and the tools your company runs on. It turns workflows like github pr review triage and slack notification into something you can deploy quickly, safely, and at scale.

Fast

Ready for your entire team

Connect 1000+ verified integrations through one Magic MCP URL instead of building and maintaining bespoke connectors for each system in this workflow.

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Secure

Guardrails on every action

Protoguard inspects every message and tool call for prompt injection and policy violations before an agent touches your systems.

See how Protoguard works

Enterprise

SSO, policies, and audit trails

Agents act on real identity under company SSO, with per-user and per-group access policies and a complete, searchable record of everything that happens.

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Team ready

Reusable across your org

Package this workflow as a skill, attach the tools it needs, and let teammates run it through Portals — governed by admins, owned by the people who do the work.

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Products behind this workflow

The Metorial products that connect, govern, and observe this scenario.

Connectivity

Integrations

Start from 1000+ verified integrations or bring your own, and give every one a governed path to your agents under existing SSO and access policies.

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Connectivity

Magic MCP

A single URL your AI client connects to. Sign in with the login you already use and your agent reaches every integration and tool you allow — no per-app setup.

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Identity

Access Control

Sign in with company SSO, set policies per user and group, and let agents act on real identity across every connected system in this workflow.

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Governance

Protoguard

Metorial’s security layer reviews every message and tool request before an agent acts — catching prompt injection and blocking anything outside your policies.

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Observability

Tracing

A complete, searchable record of everything your agents, team, and machines do across these integrations, so you can trust the workflow in production.

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Governance

Portals

Let teammates connect agents to the integrations and skills your company already uses, with admins deciding who gets access to what.

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Built for your whole team

However you adopt AI, Metorial has a path for connecting it safely.

Solution

For Agents

Give the agents behind this scenario governed access to every tool and integration they need, with one connection layer instead of bespoke glue code.

Agents solution

Solution

For Enterprise

SSO, granular access control, security review, and full audit trails so this workflow meets enterprise governance and compliance requirements.

Enterprise solution

Solution

For your Workforce

Let the people who do this work connect their own AI agents to approved integrations and reusable skills — safely, without waiting on engineering.

Workforce solution

Build this workflow with your own tools

Metorial gives teams one governed layer for connecting integrations to real production work.