A team wants a workflow that preserves evidence from each agent-assisted stage so maintainers can analyze the behaviour after the run completes. Each job should upload a run-specific artifact instead of overwriting a shared latest artifact. Which option completes the workflow?

name: multi-agent-observability

on:
  workflow_dispatch:
    inputs:
      issue_number:
        required: true
        type: string

permissions:
  contents: read
  issues: read
  pull-requests: read
  actions: read

jobs:
  triage:
    runs-on: ubuntu-latest
    steps:
      - name: Capture triage signal
        run: |
           mkdir -p evidence/triage
           gh issue view "${{ inputs.issue_number }}" \
             --json title,body,comments > evidence/triage/issue.json
      - name: Upload triage evidence
        (Missing value 1): actions/upload-artifact@v4
        with:
           name: triage-evidence-${{ github.run_id }}
           path: evidence/triage/

   implementation:
     needs: triage
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - name: Capture implementation signal
         run: |
            mkdir -p evidence/implementation
            git status --short > evidence/implementation/status.txt
            git diff --name-only > evidence/implementation/touched-files.txt
       - name: Upload implementation evidence
         uses: actions/upload-artifact@v4
         with:
            name: (Missing value 2)
            path: evidence/implementation/

   validation:
     needs: implementation
     runs-on: ubuntu-latest
     steps:
       - name: Download implementation evidence
         uses: actions/download-artifact@v4
         with:
            name: implementation-evidence-${{ github.run_id }}
       - name: Summarize validation result
         (Missing value 3): |
            echo "Validation result for run $GITHUB_RUN_ID" >> "$GITHUB_STEP_SUMMARY"