>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3579630. --> Reported by: [ahmad khader](https://www.drupal.org/user/3727855) Related to !246 >>> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <h4>8. Fix: <code>instanceDescription</code> crash in <code>applyToolUsageLimitsToContext()</code></h4> <p><code>ai_agents/src/PluginBase/AiAgentEntityWrapper.php</code> (line ~1115)</p> <ul> <li><strong>Problem:</strong> The <code>tool_usage_limits</code> config array can contain non-context keys like <code>instanceDescription</code> injected by the FlowDrop UI. <code>applyToolUsageLimitsToContext()</code> iterated all keys and called <code>$function_call-&gt;getContextDefinition($property_name)</code> for each, which threw an exception for unknown property names.</li> <li><strong>Fix:</strong> Added a guard that fetches <code>$context_definitions = $function_call-&gt;getContextDefinitions()</code> once, then skips any <code>$property_name</code> not present in the definitions via <code>if (!array_key_exists($property_name, $context_definitions)) { continue; }</code>.</li> <li><strong>Error message:</strong> <em>"The instanceDescription context is not a valid context."</em></li> </ul> <h4 id="summary-steps-reproduce">Steps to reproduce</h4> <ol> <li>Save the agent tool through a model like FlowDrop</li> <li>Call the agent via the AI agent debugger</li> </ol> <h3 id="summary-proposed-resolution">Proposed resolution</h3> <h3 id="summary-remaining-tasks">Remaining tasks</h3> <h3 id="summary-ui-changes">User interface changes</h3> <h3 id="summary-api-changes">API changes</h3> <h3 id="summary-data-model-changes">Data model changes</h3>