Agent experience specification for multi-repo Radius contributor workflows

[brooke-hamilton]

Description

Adds the Agent Ex specification — a plan for enabling AI agents to collaborate as peers across all Radius repositories. This includes two new documents:

• agent-ex-features.md — Defines capabilities agents should have: build & test, code review, issue investigation, architecture explanation, and continuous improvement. Covers all five Radius repos (radius/, dashboard/, docs/, resource-types-contrib/, bicep-types-aws/).
• agent-ex-plan.md — Implementation plan with phased rollout, current-state assessment, naming conventions, CI gates, and validation strategy. The asset inventory that was previously planned as a separate agent-ex-assets.md is folded into this plan (Phase 0 deliverables, Section 5 naming conventions, and Phase 6 per-workflow conveniences).

Type of change

• This pull request adds or changes features of Radius and has an approved issue (issue link required).

Fixes: #11720

Contributor checklist

Please verify that the PR meets the following requirements, where applicable:

• An overview of proposed schema changes is included in a linked GitHub issue.
  • Yes
  • Not applicable
• A design document PR is created in the design-notes repository, if new APIs are being introduced.
  • Yes
  • Not applicable
• The design document has been reviewed and approved by Radius maintainers/approvers.
  • Yes
  • Not applicable
• A PR for the samples repository is created, if existing samples are affected by the changes in this PR.
  • Yes
  • Not applicable
• A PR for the documentation repository is created, if the changes in this PR affect the documentation or any user facing updates are made.
  • Yes
  • Not applicable
• A PR for the recipes repository is created, if existing recipes are affected by the changes in this PR.
  • Yes
  • Not applicable

[radius-functional-tests]

Radius functional test overview

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Click here to see the test run details

Name	Value
Repository	radius-project/radius
Commit ref	4d121f6
Unique ID	func057453650f
Image tag	pr-func057453650f

• gotestsum 1.13.0
• KinD: v0.29.0
• Dapr: 1.14.4
• Azure KeyVault CSI driver: 1.4.2
• Azure Workload identity webhook: 1.3.0
• Bicep recipe location ghcr.io/radius-project/dev/test/testrecipes/test-bicep-recipes/<name>:pr-func057453650f
• Terraform recipe location http://tf-module-server.radius-test-tf-module-server.svc.cluster.local/<name>.zip (in cluster)
• applications-rp test image location: ghcr.io/radius-project/dev/applications-rp:pr-func057453650f
• dynamic-rp test image location: ghcr.io/radius-project/dev/dynamic-rp:pr-func057453650f
• controller test image location: ghcr.io/radius-project/dev/controller:pr-func057453650f
• ucp test image location: ghcr.io/radius-project/dev/ucpd:pr-func057453650f
• deployment-engine test image location: ghcr.io/radius-project/deployment-engine:latest

Test Status

⌛ Building Radius and pushing container images for functional tests...
✅ Container images build succeeded
⌛ Publishing Bicep Recipes for functional tests...
✅ Recipe publishing succeeded
⌛ Starting ucp-cloud functional tests...
⌛ Starting corerp-cloud functional tests...
✅ ucp-cloud functional tests succeeded
✅ corerp-cloud functional tests succeeded

[Copilot]

Pull request overview

Adds an “Agent Ex” specification describing how Copilot/agent infrastructure should be standardized across the Radius multi-repo ecosystem, including a phased rollout plan, a capability catalog, and a gaps/assets inventory.

Changes:

• Introduces a capability spec for agent-enabled contributor workflows across five Radius repos.
• Adds a phased implementation plan with validation approach and execution order.
• Adds an inventory of missing skills, instructions, and repo infrastructure needed to deliver the capabilities.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 12 comments.

File	Description
specs/002-agent-ex/agent-ex-features.md	Defines the target agent capabilities, success criteria, and design principles.
specs/002-agent-ex/agent-ex-plan.md	Provides phased rollout plan, validation strategy, naming conventions, and lifecycle automation concept.
specs/002-agent-ex/agent-ex-assets.md	Lists gaps (skills/instructions/infrastructure) and alignment issues to drive implementation work.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 51.39%. Comparing base (9b812b3) to head (4d121f6).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #11607      +/-   ##
==========================================
+ Coverage   51.38%   51.39%   +0.01%     
==========================================
  Files         699      699              
  Lines       44114    44114              
==========================================
+ Hits        22666    22672       +6     
+ Misses      19279    19276       -3     
+ Partials     2169     2166       -3     

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[github-actions]

Unit Tests

    2 files  ±0    415 suites  ±0   6m 41s ⏱️ -3s
4 872 tests ±0  4 870 ✅ ±0  2 💤 ±0  0 ❌ ±0 
5 774 runs  ±0  5 772 ✅ ±0  2 💤 ±0  0 ❌ ±0 

Results for commit 4d121f6. ± Comparison against base commit 9b812b3.

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

Scanned Files

None

[Copilot]

Pull request overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated 10 comments.

[DariuszPorowski]

This is great! 🚀