Multi-Repository Comparison

Manage issues across multiple repositories

Multi-Repository Comparison

Scale Simili Bot across your entire organization with centralized configuration.

Overview

Single Repository:

simili.yaml
  └─ Repository: owner/repo

Multi-Repository:

simili.yaml
  ├─ Repository: owner/backend
  ├─ Repository: owner/frontend
  ├─ Repository: owner/infra
  └─ Repository: owner/docs

Setup

1. Configure all repositories

defaults:
  cross_repo_search: true
  similarity_threshold: 0.65

repositories:
  - org: "my-org"
    repo: "backend"
    enabled: true
    description: "REST APIs and services"

  - org: "my-org"
    repo: "frontend"
    enabled: true
    description: "Web UI and React app"

  - org: "my-org"
    repo: "mobile"
    enabled: true
    description: "Mobile apps"

2. Same secrets across repos

All repositories use same Qdrant and Gemini instances:

qdrant:
  url: "${QDRANT_URL}"
  api_key: "${QDRANT_API_KEY}"
  collection: "org-issues"  # Shared collection

3. Shared GitHub Action

Deploy same workflow to all repositories:

name: Simili Bot

on:
  issues:
    types: [opened, edited]

jobs:
  simili:
    runs-on: ubuntu-latest
    steps:
      - uses: similigh/simili-bot@v0.2.0
        with:
          command: "process"
          config_path: ".github/simili.yaml"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          QDRANT_URL: ${{ secrets.ORG_QDRANT_URL }}
          QDRANT_API_KEY: ${{ secrets.ORG_QDRANT_API_KEY }}
          GEMINI_API_KEY: ${{ secrets.ORG_GEMINI_API_KEY }}

Benefits

✅ Unified Knowledge Base

• Semantic search across all repos
• Find related issues across projects
• See organization-wide patterns

✅ Consistent rules

• Same quality standards
• Unified labeling
• Consistent triage

✅ Easy maintenance

• One configuration file
• Update rules once, applies everywhere
• Centralized policy

✅ Better routing

• Issues go to correct repos automatically
• Organization-wide organization

Configuration inheritance

Share configuration across repositories:

Organization Base:

# .github/org-simili.yaml (in shared repo)
defaults:
  similarity_threshold: 0.65
  cross_repo_search: true

repositories:
  - org: "company"
    repo: "backend"
  - org: "company"
    repo: "frontend"

transfer:
  enabled: true
  llm_routing_enabled: true

Repository Override:

# .github/simili.yaml (in individual repo)
extends: "https://raw.githubusercontent.com/company/policies/main/simili.yaml"

# Override specific settings
repositories:
  - org: "company"
    repo: "my-service"
    enabled: true

Cross-repository search

Find issues across all repositories:

defaults:
  cross_repo_search: true  # Search all repos
  max_similar_to_show: 5

When enabled, Simili Bot shows similar issues from:

• Current repository
• All other repositories in config
• Entire organization

Helps identify:

• Duplicate issues across repos
• Common problems
• Related discussions

Coordination example

Scenario: User opens issue “Login broken” in frontend repo

Simili Bot Actions:

1. Searches backend, frontend, mobile repos
2. Finds similar issues:
   • frontend #234: “Sign in button not working” (95%)
   • backend #45: “Auth endpoint down” (88%)
   • mobile #67: “App can’t authenticate” (85%)
3. Posts comprehensive analysis
4. Optionally routes to central issue tracker

Organization structure

Team-based

repositories:
  - org: "company"
    repo: "team-a-backend"
    labels: ["team:a"]

  - org: "company"
    repo: "team-a-frontend"
    labels: ["team:a"]

  - org: "company"
    repo: "team-b-services"
    labels: ["team:b"]

Domain-based

repositories:
  - org: "company"
    repo: "auth-service"
    description: "Authentication and authorization"
    labels: ["domain:auth"]

  - org: "company"
    repo: "payment-service"
    description: "Billing and payments"
    labels: ["domain:payments"]

  - org: "company"
    repo: "notification-service"
    description: "Email and SMS"
    labels: ["domain:notifications"]

Best practices

1. Use shared organization secrets

env:
  QDRANT_URL: ${{ secrets.ORG_QDRANT_URL }}
  QDRANT_API_KEY: ${{ secrets.ORG_QDRANT_API_KEY }}
  GEMINI_API_KEY: ${{ secrets.ORG_GEMINI_API_KEY }}

Set at organization level in GitHub:

• Settings → Secrets and variables → Actions
• Grant access to all repositories

2. Version control configuration

# Store in shared repository
company/policies/
  └─ simili.yaml

Easy updates and history tracking.

3. Index all issues

Bulk index all historical issues once:

# Index backend
simili index --repo company/backend --since 2020-01-01

# Index frontend
simili index --repo company/frontend --since 2020-01-01

# Index mobile
simili index --repo company/mobile --since 2020-01-01

Troubleshooting

Cross-repo search not working

Check configuration:

defaults:
  cross_repo_search: true  # Must be enabled

Too many suggestions

Reduce results:

defaults:
  max_similar_to_show: 3  # Show fewer
  similarity_threshold: 0.75  # Higher threshold

Configuration not found

Verify simili.yaml exists in all repositories.

Monitoring

View issues across organization:

• Go to organization
• Use GitHub Issues global search
• See all issues with Simili Bot comments
• Monitor routing decisions

Performance at scale

Organization with 50+ repositories:

• Use multi-repo configuration
• One Qdrant collection for all
• ~1MB per 10,000 issues in vector DB
• Cross-repo search: 0.5-2 seconds

Scales efficiently with semantic search.

Next steps

Config inheritance

Setup shared configurations

Deployment guide

Deploy at scale