15 AI Agent Plugin Recipes to Seed Your Marketplace
Ready-to-build plugin specs for every persona in your organization.
Audience: Plugin authors, platform engineers
How to Use This Guide
Each recipe includes:
What it does: the problem it solves
Who it's for: the target persona
Skills needed: what to build
Platforms: where it should work
Difficulty: how hard it is to build
Impact: expected value to the org
Pick 3-5 that match your org's biggest pain points and build those first.
For Software Engineers
1. Code Review Agent
Difficulty: Medium | Impact: Very High
Automates the mechanical parts of code review so humans can focus on design and logic.
| Attribute | Details |
|---|---|
| Skills | check-security, check-standards, check-performance, check-accessibility |
| Platforms | Claude Code, Copilot, Cursor |
| MCP dependencies | None (filesystem only) |
| Key value | Catches 70% of review comments automatically, freeing reviewers for design-level feedback |
Why it works: Code review is the highest-leverage activity for quality, and also the most tedious. Automating the checklist frees humans for the hard parts.
2. Test Writer
Difficulty: Medium | Impact: High
Generates tests that match your project's existing patterns, not generic boilerplate.
| Attribute | Details |
|---|---|
| Skills | generate-unit-tests, generate-integration-tests, generate-regression-tests |
| Platforms | Claude Code, Copilot, Cursor |
| MCP dependencies | None |
| Key value | 3x faster test creation with consistent naming and patterns |
3. Migration Assistant
Difficulty: High | Impact: Very High
Helps engineers migrate between framework versions, languages, or architectures.
| Attribute | Details |
|---|---|
| Skills | analyze-migration-scope, generate-migration-plan, transform-code, validate-migration |
| Platforms | Claude Code, Cursor |
| MCP dependencies | None |
| Example use | Python 2 to 3, React class to hooks, monolith to microservice extraction |
| Key value | Turns 6-month migrations into 6-week projects |
Recipe tip: Seed with your org's most common migration. If everyone is moving from Framework X to Framework Y, build that transformation first.
4. API Design Reviewer
Difficulty: Low | Impact: Medium
Reviews API designs (OpenAPI specs, GraphQL schemas) against org conventions.
| Attribute | Details |
|---|---|
| Skills | check-naming-conventions, check-pagination, check-error-responses, check-versioning |
| Platforms | Claude Code, Copilot, Cursor |
| MCP dependencies | None |
| Key value | Consistent APIs across the organization without a review committee bottleneck |
5. Dependency Auditor
Difficulty: Medium | Impact: High
Audits project dependencies for security vulnerabilities, license issues, and maintenance status.
| Attribute | Details |
|---|---|
| Skills | scan-vulnerabilities, check-licenses, assess-maintenance, suggest-alternatives |
| Platforms | Claude Code, Copilot, Cursor |
| MCP dependencies | Optional: security context MCP for CVE data |
| Key value | Prevents "we shipped with a critical CVE" incidents |
For SRE / On-Call Engineers
6. Incident Responder
Difficulty: High | Impact: Very High
Already included in the boilerplate. Triages incidents, finds TSGs, queries telemetry.
7. Postmortem Writer
Difficulty: Low | Impact: Medium
Generates structured postmortem documents from incident data.
| Attribute | Details |
|---|---|
| Skills | gather-timeline, identify-contributing-factors, generate-action-items, draft-postmortem |
| Platforms | Claude Code, Copilot Studio |
| MCP dependencies | ICM/PagerDuty, Kusto |
| Template | Your org's postmortem template (5 Whys, blameless format, etc.) |
| Key value | Postmortems written in 30 minutes instead of 3 hours |
8. Runbook Automator
Difficulty: High | Impact: Very High
Converts manual runbook steps into semi-automated workflows with human checkpoints.
| Attribute | Details |
|---|---|
| Skills | parse-runbook, generate-automation-steps, insert-human-checkpoints, validate-safety |
| Platforms | Claude Code, Azure AI Foundry |
| MCP dependencies | Infrastructure APIs, deployment systems |
| Key value | Reduces MTTR by automating the "follow these 47 steps" runbooks |
Recipe tip: Start with the 3 most-frequently-used runbooks. High-frequency = high ROI.
For Product Managers / Non-Engineers
9. Sprint Status Agent
Difficulty: Medium | Impact: Medium
Natural language interface for sprint progress, blockers, and team velocity.
| Attribute | Details |
|---|---|
| Skills | summarize-sprint, identify-blockers, compare-velocity, forecast-completion |
| Platforms | Copilot Studio (Teams) |
| MCP dependencies | ADO/Jira |
| Key value | PMs stop asking engineers "what's the status?" and ask the bot instead |
10. Meeting Summarizer
Difficulty: Low | Impact: Medium
Summarizes meeting transcripts into decisions, action items, and owners.
| Attribute | Details |
|---|---|
| Skills | extract-decisions, extract-action-items, identify-owners, generate-summary |
| Platforms | Copilot Studio (Teams) |
| MCP dependencies | Teams/calendar |
| Key value | No more "can you send the notes?" |
For Security / Compliance Teams
11. Threat Model Assistant
Difficulty: High | Impact: Very High
Generates STRIDE threat models from architecture descriptions or code.
| Attribute | Details |
|---|---|
| Skills | identify-trust-boundaries, enumerate-threats, assess-risk, suggest-mitigations |
| Platforms | Claude Code, Copilot |
| MCP dependencies | None |
| Key value | Threat modeling happens at design time, not after the breach |
12. Compliance Checker
Difficulty: Medium | Impact: High
Checks code and infrastructure configs against regulatory requirements.
| Attribute | Details |
|---|---|
| Skills | check-gdpr-compliance, check-data-residency, check-pii-handling, check-audit-logging |
| Platforms | Claude Code, Copilot, Cursor |
| MCP dependencies | None |
| Key value | Compliance shifts left, caught at dev time, not audit time |
Recipe tip: Customize per regulation. A healthcare org needs HIPAA checks. A financial services org needs SOX checks. Don't try to boil the ocean.
For Data / Analytics Teams
13. Query Optimizer
Difficulty: Medium | Impact: Medium
Analyzes SQL/Kusto/Spark queries and suggests performance improvements.
| Attribute | Details |
|---|---|
| Skills | analyze-query-plan, suggest-indexes, rewrite-for-performance, estimate-cost |
| Platforms | Claude Code, Copilot, Cursor |
| MCP dependencies | Optional: Kusto MCP for live query plans |
| Key value | Prevents "that query cost $5,000 in compute" moments |
For New Hires
14. Codebase Navigator
Difficulty: Low | Impact: High
Helps new engineers understand an unfamiliar codebase by answering questions in context.
| Attribute | Details |
|---|---|
| Skills | explain-architecture, trace-data-flow, find-related-code, explain-decision |
| Platforms | Claude Code, Copilot, Cursor |
| MCP dependencies | None (but EngHub/wiki MCP helps for design doc context) |
| Key value | New hires productive in days instead of weeks |
Recipe tip: Seed the instructions with your actual architecture docs. The more context you give, the better the answers.
15. Standards Coach
Difficulty: Low | Impact: Medium
Teaches engineers your org's specific patterns, conventions, and "why we do it this way."
| Attribute | Details |
|---|---|
| Skills | explain-convention, show-pattern-example, suggest-refactor-to-standard |
| Platforms | Claude Code, Copilot, Cursor |
| MCP dependencies | None |
| Key value | The institutional knowledge that usually takes 6 months to absorb |
Prioritization Matrix
| Plugin | Build Difficulty | Impact | Recommended Phase |
|---|---|---|---|
| Code Review Agent | Medium | Very High | Phase 1 (Week 1) |
| Test Writer | Medium | High | Phase 1 (Week 1) |
| Codebase Navigator | Low | High | Phase 1 (Week 1) |
| Incident Responder | High | Very High | Phase 1 (Week 1) |
| Standards Coach | Low | Medium | Phase 2 (Week 5) |
| Postmortem Writer | Low | Medium | Phase 2 (Week 6) |
| Dependency Auditor | Medium | High | Phase 2 (Week 6) |
| Sprint Status Agent | Medium | Medium | Phase 2 (Week 7) |
| API Design Reviewer | Low | Medium | Phase 2 (Week 8) |
| Compliance Checker | Medium | High | Phase 3 (Week 9) |
| Meeting Summarizer | Low | Medium | Phase 3 (Week 10) |
| Threat Model Assistant | High | Very High | Phase 3 (Week 10) |
| Migration Assistant | High | Very High | Phase 3 (Week 11) |
| Query Optimizer | Medium | Medium | Phase 3 (Week 12) |
| Runbook Automator | High | Very High | Post-Phase 3 |
This is a bonus post in the AI Agent Marketplace series.
