feat: block progress claims without execution evidence

scripts/long_task_gate_lock.mjs

@@ -23,6 +23,7 @@ const EVIDENCE_FIELDS = Object.freeze({
     'statusSummary',
   ]),
   executionEvidence: Object.freeze([
+    'executionEvidence',
     'toolCallEvidence',
     'dispatchEvidence',
     'fileChangeEvidence',
@@ -153,6 +154,16 @@ function usesButtonPath(input) {
   return hasAcceptedValue(input, EVIDENCE_FIELDS.buttonPathMode, 'button_path');
 }
 
+function hasExecutionEvidence(input) {
+  return EVIDENCE_FIELDS.executionEvidence.some((fieldPath) => {
+    const value = getPathValue(input, fieldPath);
+    if (hasNonEmptyString(value)) return true;
+    if (Array.isArray(value)) return value.length > 0;
+    if (value && typeof value === 'object') return Object.keys(value).length > 0;
+    return false;
+  });
+}
+
 function claimsProgressionWithoutEvidence(input) {
   const progressionClaim = EVIDENCE_FIELDS.progressionClaim
     .map((fieldPath) => getPathValue(input, fieldPath))
@@ -160,7 +171,7 @@ function claimsProgressionWithoutEvidence(input) {
 
   if (!hasNonEmptyString(progressionClaim)) return false;
 
-  return !hasAnyNonEmptyString(input, EVIDENCE_FIELDS.executionEvidence);
+  return !hasExecutionEvidence(input);
 }
 
 function evaluateGate(input) {

scripts/test_force_recall_long_task_preflight.mjs

@@ -66,6 +66,8 @@ async function main() {
     'reason=silent long-task cannot continue without externalized checkpoint path',
     'reason=claimed execution requires evidence of a concrete next action',
     'reason=owner decision flow must end in button-path, not plain text',
+    'reason=claimed progression without concrete execution evidence is forbidden',
+    'requiredEvidence=executionEvidence',
     'HARD_GATE: Block any plain-text handoff or silent-continuation claim when externalized checkpoint evidence is missing.',
     'HARD_GATE: Block any reply path that says you already moved into the next task or are advancing the next step without concrete execution evidence.',
     'HARD_GATE: Do not say you are already on the next task, already dispatched follow-up work, or already progressing in background unless you can point to actual tool execution, file changes, emitted messages, or checkpoint records.',