diff --git a/package-lock.json b/package-lock.json
index 833f6ef4..a2df2b50 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,24 +9,24 @@
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@@ -36,31 +36,31 @@
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-        "@anthropic-ai/claude-agent-sdk-win32-x64": "0.3.195"
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@@ -69,9 +69,9 @@
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@@ -82,9 +82,9 @@
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@@ -95,9 +95,9 @@
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@@ -111,9 +111,9 @@
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@@ -127,9 +127,9 @@
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@@ -143,9 +143,9 @@
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@@ -159,9 +159,9 @@
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@@ -172,9 +172,9 @@
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@@ -185,9 +185,9 @@
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+      "version": "8.62.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/types/-/types-8.62.1.tgz",
+      "integrity": "sha512-ooCzJFaf+Hg+uG6fA3NRFGuFjlfNlDhBthbv4ZPU/0elCAFUfnyXUvf/WOpHz/jYwSmvU2GkR2LtyUfy1AxZ1Q==",
       "dev": true,
       "license": "MIT",
       "engines": {
@@ -1094,16 +1094,16 @@
       }
     },
     "node_modules/@typescript-eslint/typescript-estree": {
-      "version": "8.62.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-8.62.0.tgz",
-      "integrity": "sha512-+hVbNxtW64pIcZWDPGbyaKF7vp2IBTVY5ma1blwwksrjdsbdqqEKvJWMGbBofei4F6Dovx1M0RJgoFeNu2279A==",
+      "version": "8.62.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/typescript-estree/-/typescript-estree-8.62.1.tgz",
+      "integrity": "sha512-xMcW9oP9u7fAMXYs9A65CVmtLQe2r//oXINHfi8HV+oiqhih17sbLdhXr4540YWlgpDKQdY854OL5ZrdCiQsAA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@typescript-eslint/project-service": "8.62.0",
-        "@typescript-eslint/tsconfig-utils": "8.62.0",
-        "@typescript-eslint/types": "8.62.0",
-        "@typescript-eslint/visitor-keys": "8.62.0",
+        "@typescript-eslint/project-service": "8.62.1",
+        "@typescript-eslint/tsconfig-utils": "8.62.1",
+        "@typescript-eslint/types": "8.62.1",
+        "@typescript-eslint/visitor-keys": "8.62.1",
         "debug": "^4.4.3",
         "minimatch": "^10.2.2",
         "semver": "^7.7.3",
@@ -1122,16 +1122,16 @@
       }
     },
     "node_modules/@typescript-eslint/utils": {
-      "version": "8.62.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-8.62.0.tgz",
-      "integrity": "sha512-82r66fi9zYwZ+mTq3vKgwjbZ1PVk/DJzrXFLpG6RnBbdvH8TEGVHIs9H4d2drhkOzf0syZuD/OZvvlu6GDbP4g==",
+      "version": "8.62.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-8.62.1.tgz",
+      "integrity": "sha512-sHtbPfuKNZCG+ih8SyjjucqRntSVmp8XgL5u6o9mAhiSn8ds5o/M/XdM0abweme2Tln3szOstOrZ9OXitvPh0g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.9.1",
-        "@typescript-eslint/scope-manager": "8.62.0",
-        "@typescript-eslint/types": "8.62.0",
-        "@typescript-eslint/typescript-estree": "8.62.0"
+        "@typescript-eslint/scope-manager": "8.62.1",
+        "@typescript-eslint/types": "8.62.1",
+        "@typescript-eslint/typescript-estree": "8.62.1"
       },
       "engines": {
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
@@ -1146,13 +1146,13 @@
       }
     },
     "node_modules/@typescript-eslint/visitor-keys": {
-      "version": "8.62.0",
-      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-8.62.0.tgz",
-      "integrity": "sha512-CY3uyFSRbcQv3nnSv8S0+lDftMVz6P963PoRlxrV7ew/Md564g9ut60PYzdLM5qW4jFn93GBF+Soi90ISAN+GQ==",
+      "version": "8.62.1",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-8.62.1.tgz",
+      "integrity": "sha512-4g3BLxfdTMy8iZG0MaBkadnlRrCJ74cQiFbyEVMrkwIoqdyaXXQM22cotDvrl4x28wgIZ9rEJRoM+mmhSJpJ1g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@typescript-eslint/types": "8.62.0",
+        "@typescript-eslint/types": "8.62.1",
         "eslint-visitor-keys": "^5.0.0"
       },
       "engines": {
@@ -3227,9 +3227,9 @@
       }
     },
     "node_modules/prettier": {
-      "version": "3.9.3",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.9.3.tgz",
-      "integrity": "sha512-HWmu+K+zvHNpaMfSnYeqdqrDbR16cuIXaPx8WoHaviQkDJh1/0BNtOZmHVQI5jc3wXv0H1yXc9wjvFdXh+n3hQ==",
+      "version": "3.9.4",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.9.4.tgz",
+      "integrity": "sha512-yWG/o/4oJfo036EKAfK6ACAoDOfHeRHx4tuxkfBZiauURiaSmYwlpOr5LQqKtIkRD2z1PLteme2WoxEnj4tHTg==",
       "dev": true,
       "license": "MIT",
       "bin": {
@@ -3826,16 +3826,16 @@
       }
     },
     "node_modules/vite": {
-      "version": "8.1.0",
-      "resolved": "https://registry.npmjs.org/vite/-/vite-8.1.0.tgz",
-      "integrity": "sha512-BuJcQK/56NQTWDGn4ABea3q4SSBdNPWwNZKTkkUpcMPnLoquSYH8llRtSUIgoL1KSCpHt5eghLShn50mH36y7Q==",
+      "version": "8.1.2",
+      "resolved": "https://registry.npmjs.org/vite/-/vite-8.1.2.tgz",
+      "integrity": "sha512-6YYPbRXTxx6bRXmOn7XdnQAy5DQNHhDgtjhDHI13oe4pY93kkcdGJWxpGwOm++/Wh0QpQhDrpIoVMrmrsI5AGQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
         "lightningcss": "^1.32.0",
         "picomatch": "^4.0.4",
-        "postcss": "^8.5.15",
-        "rolldown": "~1.1.2",
+        "postcss": "^8.5.16",
+        "rolldown": "~1.1.3",
         "tinyglobby": "^0.2.17"
       },
       "bin": {
diff --git a/package.json b/package.json
index a551ea6f..8fa585e7 100644
--- a/package.json
+++ b/package.json
@@ -63,21 +63,21 @@
     "node": ">=22"
   },
   "dependencies": {
-    "@agentclientprotocol/sdk": "1.0.0",
-    "@anthropic-ai/claude-agent-sdk": "0.3.195",
+    "@agentclientprotocol/sdk": "1.1.0",
+    "@anthropic-ai/claude-agent-sdk": "0.3.197",
     "zod": "^3.25.0 || ^4.0.0"
   },
   "devDependencies": {
-    "@anthropic-ai/sdk": "0.106.0",
+    "@anthropic-ai/sdk": "0.108.0",
     "@eslint/js": "10.0.1",
     "@tsconfig/node22": "22.0.5",
     "@types/node": "26.0.1",
-    "@typescript-eslint/eslint-plugin": "8.62.0",
-    "@typescript-eslint/parser": "8.62.0",
+    "@typescript-eslint/eslint-plugin": "8.62.1",
+    "@typescript-eslint/parser": "8.62.1",
     "eslint": "10.6.0",
     "eslint-config-prettier": "10.1.8",
     "globals": "17.7.0",
-    "prettier": "3.9.3",
+    "prettier": "3.9.4",
     "ts-node": "10.9.2",
     "typescript": "6.0.3",
     "vitest": "4.1.9"
diff --git a/src/acp-agent.ts b/src/acp-agent.ts
index 71337d35..7314a158 100644
--- a/src/acp-agent.ts
+++ b/src/acp-agent.ts
@@ -4021,14 +4021,17 @@ export function buildConfigOptions(
 // but the SDK model list uses IDs like "claude-opus-4-6-1m".
 const MODEL_CONTEXT_HINT_PATTERN = /\[(\d+m)\]$/i;
 
-// Captures a model family version such as `4-6` or `4.7` so we can keep
-// `claude-opus-4-6` from being copied onto the SDK's `opus` alias when that
-// alias currently resolves to a different family version (e.g. Opus 4.7).
-const MODEL_FAMILY_VERSION_PATTERN = /\b(\d+)[-.](\d+)\b/;
+// Captures a model family version: `4-6`/`4.7` for dated generations, or a
+// bare `5` for single-number ones like "Sonnet 5". Used to keep a pinned
+// `claude-opus-4-6` from matching the `opus` alias once it points at 4.7.
+const MODEL_FAMILY_VERSION_PATTERN = /\b(\d+)(?:[-.](\d+))?\b/;
 
 function extractModelFamilyVersion(s: string): string | null {
-  const match = s.match(MODEL_FAMILY_VERSION_PATTERN);
-  return match ? `${match[1]}.${match[2]}` : null;
+  // Strip "[1m]"-style context hints first — that digit is context window
+  // size, not a model generation version.
+  const match = s.replace(/\[\d+m\]/gi, "").match(MODEL_FAMILY_VERSION_PATTERN);
+  if (!match) return null;
+  return match[2] ? `${match[1]}.${match[2]}` : match[1];
 }
 
 function modelVersionsCompatible(preference: string, candidate: ModelInfo): boolean {
@@ -4074,7 +4077,7 @@ function scoreModelMatch(model: ModelInfo, tokens: string[], contextHint?: strin
   return score;
 }
 
-function resolveModelPreference(models: ModelInfo[], preference: string): ModelInfo | null {
+export function resolveModelPreference(models: ModelInfo[], preference: string): ModelInfo | null {
   const trimmed = preference.trim();
   if (!trimmed) return null;
 
@@ -4089,6 +4092,18 @@ function resolveModelPreference(models: ModelInfo[], preference: string): ModelI
   );
   if (directMatch) return directMatch;
 
+  // Exact match on the alias's canonical resolved id (e.g. a pinned
+  // "claude-sonnet-5" against the "sonnet" row's `resolvedModel`). SDK-
+  // reported and unambiguous, so it's tried before the fuzzier tiers below.
+  // "default" is skipped first since it shares a resolvedModel with
+  // whichever alias the CLI currently recommends — a specific pin should
+  // land on that named alias, not "default".
+  const resolvedMatch =
+    models.find(
+      (model) => model.value !== "default" && model.resolvedModel?.toLowerCase() === lower,
+    ) ?? models.find((model) => model.resolvedModel?.toLowerCase() === lower);
+  if (resolvedMatch) return resolvedMatch;
+
   // Substring match
   const includesMatch = models.find((model) => {
     if (!modelVersionsCompatible(trimmed, model)) return false;
@@ -4148,7 +4163,10 @@ function resolveSettingsModel(
  * - The Default option is unaffected by `availableModels` — it always remains
  *   available, even when the allowlist is `[]`.
  */
-function applyAvailableModelsAllowlist(sdkModels: ModelInfo[], allowlist: string[]): ModelInfo[] {
+export function applyAvailableModelsAllowlist(
+  sdkModels: ModelInfo[],
+  allowlist: string[],
+): ModelInfo[] {
   // Default is always preserved per the docs. Synthesize one if the SDK
   // didn't surface it so downstream code (e.g. `getAvailableModels` picking
   // `models[0]` as a fallback) still has something to work with.
diff --git a/src/tests/model-resolution.test.ts b/src/tests/model-resolution.test.ts
new file mode 100644
index 00000000..67530fd0
--- /dev/null
+++ b/src/tests/model-resolution.test.ts
@@ -0,0 +1,118 @@
+import { describe, it, expect } from "vitest";
+import { randomUUID } from "crypto";
+import { query } from "@anthropic-ai/claude-agent-sdk";
+import type { ModelInfo } from "@anthropic-ai/claude-agent-sdk";
+import { resolveModelPreference, applyAvailableModelsAllowlist } from "../acp-agent.js";
+
+// Mirrors a real `supportedModels()` response: alias rows carry
+// `resolvedModel`, and "Sonnet 5" has no `major.minor` dot unlike older
+// "claude-opus-4-6"-style ids.
+const LIVE_SHAPED_MODELS: ModelInfo[] = [
+  {
+    value: "default",
+    resolvedModel: "claude-opus-4-8[1m]",
+    displayName: "Default (recommended)",
+    description: "Use the default model (currently Opus 4.8 (1M context))",
+  },
+  {
+    value: "opus[1m]",
+    resolvedModel: "claude-opus-4-8[1m]",
+    displayName: "Opus",
+    description: "Opus 4.8 with 1M context · Best for everyday, complex tasks",
+  },
+  {
+    value: "sonnet",
+    resolvedModel: "claude-sonnet-5",
+    displayName: "Sonnet",
+    description: "Sonnet 5 · Efficient for routine tasks",
+  },
+  {
+    value: "haiku",
+    resolvedModel: "claude-haiku-4-5-20251001",
+    displayName: "Haiku",
+    description: "Haiku 4.5 · Fastest for quick answers",
+  },
+];
+
+describe("resolveModelPreference - resolvedModel matching", () => {
+  it("matches a preference that equals an alias's resolvedModel exactly", () => {
+    expect(resolveModelPreference(LIVE_SHAPED_MODELS, "claude-sonnet-5")?.value).toBe("sonnet");
+    expect(resolveModelPreference(LIVE_SHAPED_MODELS, "claude-opus-4-8[1m]")?.value).toBe(
+      "opus[1m]",
+    );
+    expect(resolveModelPreference(LIVE_SHAPED_MODELS, "claude-haiku-4-5-20251001")?.value).toBe(
+      "haiku",
+    );
+  });
+
+  it("is case-insensitive", () => {
+    expect(resolveModelPreference(LIVE_SHAPED_MODELS, "CLAUDE-SONNET-5")?.value).toBe("sonnet");
+  });
+
+  it("still resolves plain aliases via the direct-match tier", () => {
+    expect(resolveModelPreference(LIVE_SHAPED_MODELS, "sonnet")?.value).toBe("sonnet");
+    expect(resolveModelPreference(LIVE_SHAPED_MODELS, "opus[1m]")?.value).toBe("opus[1m]");
+  });
+
+  it("does not let a retired dated id drift onto a same-family alias of a different generation", () => {
+    expect(resolveModelPreference(LIVE_SHAPED_MODELS, "claude-sonnet-4-6")).toBeNull();
+  });
+
+  // "opus[1m]"'s `value` has no dotted version, just the context-hint digit
+  // in "[1m]" — unstripped, that reads as version "1" and blocks the match
+  // before the matcher reaches the description's real "4.8".
+  it("does not mistake an alias's context-hint suffix for its version", () => {
+    expect(resolveModelPreference(LIVE_SHAPED_MODELS, "claude-opus-4-8")?.value).toBe("opus[1m]");
+  });
+
+  it("returns null for a preference that matches nothing", () => {
+    expect(resolveModelPreference(LIVE_SHAPED_MODELS, "claude-gpt-99")).toBeNull();
+  });
+});
+
+describe("applyAvailableModelsAllowlist - resolvedModel matching", () => {
+  it("resolves an allowlist entry pinned to a canonical resolvedModel id", () => {
+    const result = applyAvailableModelsAllowlist(LIVE_SHAPED_MODELS, ["claude-sonnet-5"]);
+    const entry = result.find((m) => m.value === "claude-sonnet-5");
+    expect(entry).toBeDefined();
+    expect(entry?.displayName).toBe("Sonnet");
+  });
+});
+
+// Runs against the real SDK (no mocks) so the fixture above is flagged the
+// moment the SDK's actual model list shape drifts from it. Requires a usable
+// ANTHROPIC_API_KEY, hence opt-in via RUN_INTEGRATION_TESTS.
+describe.skipIf(!process.env.RUN_INTEGRATION_TESTS)("model resolution (real SDK)", () => {
+  it("every model's resolvedModel (when present) resolves back to that same row", async () => {
+    const q = query({ prompt: "hi", options: { sessionId: randomUUID() } });
+    try {
+      const models = await q.supportedModels();
+      expect(models.length).toBeGreaterThan(0);
+
+      for (const model of models) {
+        // "default" shares a resolvedModel with the CLI's recommended named
+        // alias, and resolution intentionally prefers that alias on a tie.
+        if (!model.resolvedModel || model.value === "default") continue;
+        const resolved = resolveModelPreference(models, model.resolvedModel);
+        expect(resolved?.value).toBe(model.value);
+      }
+    } finally {
+      q.return(undefined);
+    }
+  }, 30000);
+
+  it("resolves the well-known 'sonnet' and 'opus' aliases to a model bearing their family name", async () => {
+    const q = query({ prompt: "hi", options: { sessionId: randomUUID() } });
+    try {
+      const models = await q.supportedModels();
+
+      const sonnet = resolveModelPreference(models, "sonnet");
+      expect(sonnet?.resolvedModel?.toLowerCase()).toContain("sonnet");
+
+      const opus = resolveModelPreference(models, "opus");
+      expect(opus?.resolvedModel?.toLowerCase()).toContain("opus");
+    } finally {
+      q.return(undefined);
+    }
+  }, 30000);
+});
diff --git a/src/tests/tools.test.ts b/src/tests/tools.test.ts
index 9c7f527c..f0660e1e 100644
--- a/src/tests/tools.test.ts
+++ b/src/tests/tools.test.ts
@@ -1614,6 +1614,68 @@ describe("toolInfoFromToolUse - undefined input regression", () => {
     const info = toolInfoFromToolUse(toolUse, false);
     expect(info.title).toBe("Update TODOs");
   });
+
+  it("ReportFindings with undefined input should not throw", () => {
+    const toolUse = { name: "ReportFindings", id: "toolu_findings_undef", input: undefined };
+    const info = toolInfoFromToolUse(toolUse, false);
+    expect(info.title).toBe("Report findings: none found");
+    expect(info.content).toEqual([]);
+  });
+});
+
+describe("toolInfoFromToolUse - ReportFindings", () => {
+  it("should summarize findings count and list each in content", () => {
+    const toolUse = {
+      name: "ReportFindings",
+      id: "toolu_findings_1",
+      input: {
+        findings: [
+          {
+            file: "src/foo.ts",
+            line: 42,
+            summary: "Off-by-one in loop bound",
+            failure_scenario: "Empty array → index out of bounds crash",
+          },
+          {
+            file: "src/bar.ts",
+            summary: "Unhandled promise rejection",
+            failure_scenario: "Network failure → unhandled rejection",
+          },
+        ],
+      },
+    };
+
+    const info = toolInfoFromToolUse(toolUse, false);
+
+    expect(info.kind).toBe("think");
+    expect(info.title).toBe("Report 2 findings");
+    expect(info.content).toEqual([
+      {
+        type: "content",
+        content: { type: "text", text: "**src/foo.ts:42** — Off-by-one in loop bound" },
+      },
+      {
+        type: "content",
+        content: { type: "text", text: "**src/bar.ts** — Unhandled promise rejection" },
+      },
+    ]);
+  });
+
+  it("should report a singular title and empty findings array", () => {
+    const oneFinding = {
+      name: "ReportFindings",
+      id: "toolu_findings_2",
+      input: { findings: [{ file: "src/baz.ts", summary: "Leak", failure_scenario: "..." }] },
+    };
+    expect(toolInfoFromToolUse(oneFinding, false).title).toBe("Report 1 finding");
+
+    const noFindings = {
+      name: "ReportFindings",
+      id: "toolu_findings_3",
+      input: { findings: [] },
+    };
+    expect(toolInfoFromToolUse(noFindings, false).title).toBe("Report findings: none found");
+  });
 });
 
 describe("planEntries - undefined input regression", () => {
diff --git a/src/tools.ts b/src/tools.ts
index 1a0de445..1ee2ab88 100644
--- a/src/tools.ts
+++ b/src/tools.ts
@@ -15,6 +15,7 @@ import {
   FileWriteInput,
   GlobInput,
   GrepInput,
+  ReportFindingsInput,
   TaskCreateInput,
   TaskCreateOutput,
   TaskUpdateInput,
@@ -371,6 +372,25 @@ export function toolInfoFromToolUse(
       };
     }
 
+    case "ReportFindings": {
+      const input = toolUse.input as ReportFindingsInput | undefined;
+      const findings = input?.findings ?? [];
+      return {
+        title:
+          findings.length === 0
+            ? "Report findings: none found"
+            : `Report ${findings.length} finding${findings.length === 1 ? "" : "s"}`,
+        kind: "think",
+        content: findings.map((finding) => ({
+          type: "content" as const,
+          content: {
+            type: "text" as const,
+            text: `**${finding.file}${finding.line ? `:${finding.line}` : ""}** — ${finding.summary}`,
+          },
+        })),
+      };
+    }
+
     case "TaskCreate": {
       const input = toolUse.input as TaskCreateInput | undefined;
       return {