✨ Add konveyor-nightly-updater skill for automating release updates

skills/README.md

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+# Konveyor CI Skills
+
+This directory contains Claude Code skills for working with the Konveyor CI repository.
+
+## Installation Convention
+
+All skills in this repository can be installed using the standard installation script:
+
+```bash
+./skills/install.sh <skill-name>
+```
+
+For example:
+```bash
+./skills/install.sh konveyor-nightly-updater
+```
+
+The installation script will:
+- Extract the skill to `.claude/skills/`
+- Configure `.claude/settings.local.json` to enable the skill
+- Verify the installation
+
+**First-time setup:** If you don't have a `.claude/settings.local.json` file, the script will create one for you.
+
+## Available Skills
+
+### konveyor-nightly-updater.skill
+
+Automates updating nightly CI workflows when a new Konveyor release is created.
+
+**Use when:** Adding a new release nightly (e.g., release-0.9) and removing old releases (2 versions back).
+
+**Example prompts:**
+- "Update nightlies for release-0.9"
+- "Add nightly for release-0.10 and remove release-0.8"
+
+**What it does:**
+
+**Automated changes in konveyor/ci:**
+- Analyzes current releases and calculates what to add/remove
+- Calculates cron schedules automatically (10 min after previous release)
+- Creates new nightly workflow file
+- Updates global-ci.yml with conditional blocks (both API and UI jobs)
+- Updates README.md badge rows
+- Deletes old nightly workflow file
+
+**With your approval (shows full content first):**
+- **CI issue**: Shows complete issue body, asks permission to create
+- **CI PR**: Shows complete PR body, asks permission to create
+- **Test repo issues**: Shows each issue separately, asks permission for each
+  - go-konveyor-tests issue (update tier workflows)
+  - kantra-cli-tests issue (add nightly workflow)
+
+**Key feature:** You see the EXACT content before anything is created!
+
+## Skill Contents
+
+Each `.skill` file is a packaged set of:
+- **Scripts** - Helper tools for analysis and validation
+- **Templates** - File templates for workflows and documentation
+- **References** - Detailed pattern documentation
+- **Instructions** - Step-by-step workflow guidance
+
+You can extract and explore the contents by unzipping the `.skill` file (it's just a zip file with a different extension).
+
+## Contributing
+
+To create or update skills for this repository:
+
+1. Follow the [Claude Code skill creation guide](https://docs.anthropic.com/claude/docs/create-a-skill)
+2. Test the skill thoroughly
+3. Package it using the skill packaging tools
+4. Add it to this `skills/` directory
+5. Update this README with details about the new skill

skills/install.sh

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+#!/bin/bash
+#
+# Skill installation script for konveyor/ci repository
+# Usage: ./skills/install.sh <skill-name>
+#
+
+set -e
+
+SKILL_NAME="${1:-konveyor-nightly-updater}"
+SKILL_FILE="skills/${SKILL_NAME}.skill"
+SKILLS_DIR=".claude/skills"
+SETTINGS_FILE=".claude/settings.local.json"
+
+# Colors for output
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+echo "Installing skill: ${SKILL_NAME}"
+
+# Check if skill file exists
+if [ ! -f "$SKILL_FILE" ]; then
+    echo -e "${RED}Error: Skill file not found: ${SKILL_FILE}${NC}"
+    echo "Available skills:"
+    ls -1 skills/*.skill 2>/dev/null | sed 's/skills\//  - /' | sed 's/\.skill$//' || echo "  (none)"
+    exit 1
+fi
+
+# Create skills directory
+echo -e "${YELLOW}Creating skills directory...${NC}"
+mkdir -p "$SKILLS_DIR"
+
+# Extract skill
+echo -e "${YELLOW}Extracting skill...${NC}"
+unzip -q -o -d "$SKILLS_DIR" "$SKILL_FILE"
+
+# Update settings.local.json
+if [ -f "$SETTINGS_FILE" ]; then
+    echo -e "${YELLOW}Updating existing settings file...${NC}"
+
+    # Check if enabledPlugins section exists
+    if grep -q '"enabledPlugins"' "$SETTINGS_FILE"; then
+        # Check if skill is already enabled
+        if grep -q "\"${SKILL_NAME}\"" "$SETTINGS_FILE"; then
+            echo -e "${GREEN}Skill already enabled in settings${NC}"
+        else
+            # Add skill to existing enabledPlugins
+            # This is a simple approach - for complex JSON manipulation, use jq
+            echo -e "${YELLOW}Note: Please manually add the following to enabledPlugins in ${SETTINGS_FILE}:${NC}"
+            echo "  \"${SKILL_NAME}\": true"
+        fi
+    else
+        echo -e "${YELLOW}Note: Please add the following to ${SETTINGS_FILE}:${NC}"
+        echo '  "enabledPlugins": {'
+        echo "    \"${SKILL_NAME}\": true"
+        echo '  }'
+    fi
+else
+    echo -e "${YELLOW}Creating settings file...${NC}"
+    mkdir -p .claude
+    cat > "$SETTINGS_FILE" << EOF
+{
+  "enabledPlugins": {
+    "${SKILL_NAME}": true
+  }
+}
+EOF
+    echo -e "${GREEN}Created ${SETTINGS_FILE}${NC}"
+fi
+
+# Verify installation
+echo ""
+echo -e "${GREEN}✓ Skill installed successfully!${NC}"
+echo ""
+echo "Installed files:"
+tree "$SKILLS_DIR/$SKILL_NAME" -L 2 2>/dev/null || find "$SKILLS_DIR/$SKILL_NAME" -maxdepth 2 -type f | sed 's/^/  /'
+
+echo ""
+echo -e "${GREEN}Installation complete!${NC}"
+echo "You can now use the ${SKILL_NAME} skill in your Claude Code sessions."