docs: add repository and issue tools to readme

- Document new validate_workflow tool in examples and tool table
- Update list_workflows description to mention validation status
- Add example usage for workflow validation

README.md

@@ -60,6 +60,7 @@ Ask Claude things like:
 - "Trigger the build.yml workflow on the main branch"
 - "What workflows are available in myorg/myrepo?"
 - "Show me the build.yml workflow file"
+- "Validate the build.yml workflow in myorg/myrepo"
 - "What artifacts were produced by run #77?"
 - "What's the queue depth for each runner label?"
 - "Approve the workflow run from the fork PR"
@@ -68,6 +69,10 @@ Ask Claude things like:
 - "Diagnose why job 456 failed"
 - "What secrets are available for myorg/myrepo?"
 - "List all NuGet packages for myorg"
+- "What are the package defaults for myorg?"
+- "List all repos for myorg"
+- "List open issues for gitcaddy/server"
+- "Show me issue #42 in myorg/myrepo"
 
 ## Available Tools
 
@@ -83,8 +88,9 @@ Ask Claude things like:
 
 | Tool | Description |
 |------|-------------|
-| `list_workflows` | List available workflow files in a repository |
+| `list_workflows` | List available workflow files in a repository (includes validation status) |
 | `get_workflow_file` | Get the YAML content of a workflow file |
+| `validate_workflow` | Validate a workflow YAML file for parse errors (from repo or raw content) |
 | `list_workflow_runs` | List workflow runs for a repository |
 | `get_workflow_run` | Get run details with all jobs |
 | `get_job_logs` | Get logs from a specific job (auto-extracts errors for failed jobs) |
@@ -100,6 +106,14 @@ Ask Claude things like:
 | `list_artifacts` | List artifacts from a workflow run |
 | `get_artifact_download_url` | Get the download URL for a specific artifact |
 
+### Repository & Issue Tools
+
+| Tool | Description |
+|------|-------------|
+| `list_repos` | List repositories for an owner (org or user) |
+| `list_issues` | List issues for a repository with pagination and state filtering |
+| `get_issue` | Get issue details including body content and comments |
+
 ### Release & Package Tools
 
 | Tool | Description |
@@ -108,6 +122,7 @@ Ask Claude things like:
 | `get_release` | Get release details with all assets |
 | `list_secrets` | List secret names and descriptions (not values) for global, org, and repo scopes |
 | `list_packages` | List packages for an owner or globally with version and visibility info |
+| `get_package_defaults` | Get preconfigured package defaults (authors, company, copyright, icon, URLs) for an org |
 
 ### AI Learning Tools