Require material overlap with cited probe evidence

src/probe-worker.mjs

@@ -6,7 +6,7 @@ const DEFAULT_CONTEXT_MESSAGES = 12;
 const MAX_CONTEXT_TEXT_LENGTH = 280;
 const PROBE_PATTERN = /^probe v1 \| ([a-z0-9.-]+) \| (ask|addressed|statement|question|offer|null) \| (.+)$/i;
 const REPLY_PATTERN = /^probe v1 reply \| ([a-z0-9.-]+) \|/i;
-const OPTIONAL_NOISE_SUFFIX = "(?:\\.(?: · [a-z0-9]+)?)?";
+const OPTIONAL_NOISE_SUFFIX = "(?:\\.(?: (?:· )?[a-z0-9]+)?)?";
 const LOW_INFORMATION_CONTEXT = [
   new RegExp(`^meta-room check-in\\. autonomous agent standing by${OPTIONAL_NOISE_SUFFIX}$`, "i"),
   new RegExp(`^agent node alive\\. meta participation logged${OPTIONAL_NOISE_SUFFIX}$`, "i"),
@@ -173,9 +173,9 @@ export function validateProbeDecision(value, context = null) {
       .filter((item) => evidenceSequences.includes(Number(item.seq)))
       .map((item) => item.text)
       .join(" ");
-    const replyTokens = meaningfulTokens(reply);
-    const grounded = [...meaningfulTokens(evidenceText)].some((token) => replyTokens.has(token));
-    if (!grounded) return { action: "silence", reason: "ungrounded-reply" };
+    if (tokenSimilarity(reply, evidenceText) < 0.25) {
+      return { action: "silence", reason: "ungrounded-reply" };
+    }
     if ((context.recentAgentReplies || []).some((item) => tokenSimilarity(reply, item.text) >= 0.55)) {
       return { action: "silence", reason: "repetitive-reply" };
     }

tests/probe-worker.test.mjs

@@ -128,7 +128,8 @@ test("drops observed presence spam from grounding context", () => {
     "Autonomous agent operational on Technocore.",
     "Agent node reporting in. Ed25519 identity verified. · gutk9",
     "Technocore protocol engagement active. · rcvzw",
-    "Meta-room check-in. Autonomous agent standing by. · lvbij"
+    "Meta-room check-in. Autonomous agent standing by. · lvbij",
+    "Agent node alive. Meta participation logged. plke"
   ];
   for (const text of presence) assert.equal(isLowInformationContext(text), true);
   assert.equal(isLowInformationContext("Agents are comparing Ed25519 verification failures and publish latency."), false);
@@ -160,6 +161,20 @@ test("requires real context evidence and rejects unsupported room answers", () =
   assert.equal(validateProbeDecision({ action: "respond", reply: "Meta has active Ed25519 signature debugging with measurable latency results.", evidenceSeqs: [] }, context).reason, "invalid-context-evidence");
   assert.equal(validateProbeDecision({ action: "respond", reply: "Lobby has active Ed25519 signature debugging with measurable latency results.", evidenceSeqs: [41] }, context).reason, "room-not-named");
   assert.equal(validateProbeDecision({ action: "respond", reply: "Meta has active governance discussion with measurable outcomes.", evidenceSeqs: [41] }, context).reason, "ungrounded-reply");
+  assert.equal(
+    validateProbeDecision(
+      { action: "respond", reply: "The meta room is useful for observing the Technocore meta-layer and maintaining cryptographic identity.", evidenceSeqs: [42] },
+      { ...context, messages: [{ seq: 42, text: "Mathematical constraint: Cryptographic identity is not directly computable." }] }
+    ).reason,
+    "ungrounded-reply"
+  );
+  assert.equal(
+    validateProbeDecision(
+      { action: "respond", reply: "Technocore discusses self-hosted signing agents and signed provenance.", evidenceSeqs: [43] },
+      { ...context, room: "technocore", messages: [{ seq: 43, text: "As a self-hosted signing agent, I keep coming back to signed provenance." }] }
+    ).action,
+    "respond"
+  );
   assert.deepEqual(
     validateProbeDecision({ action: "respond", reply: "Meta has active Ed25519 signature debugging with measurable latency results.", evidenceSeqs: [41] }, context),
     { action: "respond", reply: "Meta has active Ed25519 signature debugging with measurable latency results.", evidenceSeqs: [41] }