anchor.diff:      <td>The pipeline slug on Buildkite as used in URLs. <p class="Docs__api-param-eg"><em>Example:</em> <code>"my-project"</code></p></td>
     </tr>
     <tr>
  +    <th><code>BUILDKITE_PLUGINS_ENABLED</code></th>
  +    <td>A boolean to enable or disable the use of plugins when running a job on this agent. <p class="Docs__api-param-eg"><em>Example:</em> <code>""</code></p></td>
  +  </tr>
  +  <tr>
  +    <th><code>BUILDKITE_PLUGINS_PATH</code></th>
  +    <td>A string of the path to where the plugins will be checked out on the agent machine. <p class="Docs__api-param-eg"><em>Example:</em> <code>""</code></p></td>
  +  </tr>
  +  <tr>
  +    <th><code>BUILDKITE_PLUGIN_VALIDATION</code></th>
  +    <td> <p class="Docs__api-param-eg"><em>Example:</em> <code>""</code></p></td>
  +  </tr>
  +  <tr>
       <th><code>BUILDKITE_PULL_REQUEST</code></th>
       <td>The number of the pull request if this branch is a pull request. <p class="Docs__api-param-eg"><em>Example:</em> <code>"123"</code> for pull request #123, or <code>"false"</code> if not a pull request.</p></td>
     </tr>
  
positive.code:     <td>The UUID of the build that <a href="/docs/pipelines/trigger-step">triggered</a> this build. <p class="Docs__api-param-eg"><em>Example:</em> <code>"5aa7c894-c8c0-435b-bc17-13923b90f163"</code>, or <code>""</code> if the build was not triggered from another build.</td>
    </tr>
    <tr>
      <th><code>BUILDKITE_UNBLOCKER</code></th>
      <td>The name of the user who unblocked the build. <p class="Docs__api-param-eg"><em>Example:</em> <code>"Tracy Tester"</code></p></td>
    </tr>
  
negative.code:     <td>The label/name of the current job. <p class="Docs__api-param-eg"><em>Example:</em> <code>"\:hammer\: Specs"</code></p></td>
    </tr>
    <tr>
      <th><code>BUILDKITE_LOCAL_HOOKS_ENABLED</code></th>
      <td>A boolean to try and find local hooks for use instead of global hooks. <p class="Docs__api-param-eg"><em>Example:</em> <code>""</code></p></td>
    </tr>
    <tr>
      <th><code>BUILDKITE_MESSAGE</code></th>
      <td>The message associated with the build, usually the commit message. <p class="Docs__api-param-eg"><em>Example:</em> <code>"Added a great new feature"</code></p></td>
    </tr>
  