diff --git a/src/fable5/external-project-review.test.ts b/src/fable5/external-project-review.test.ts
index 1326564..6667be1 100644
--- a/src/fable5/external-project-review.test.ts
+++ b/src/fable5/external-project-review.test.ts
@@ -31,6 +31,14 @@ describe("external project review receipts", () => {
     expect(matt.risks).toContain("external skill prompts are prompt-injection inputs");
   });
 
+  it("records ECC as learn-only external harness research", () => {
+    const receipt = createSkillsRepoReviewReceipt("affaan-m/ECC", new Date("2026-07-01T00:00:00.000Z"));
+
+    expect(receipt).toMatchObject({ repo: "affaan-m/ECC", license: "MIT", safeToVendor: false, decision: "learn-only", deployAttempted: false });
+    expect(receipt.patternsLearned).toContain("agent harness optimization patterns");
+    expect(receipt.risks).toContain("optimization claims need local receipts");
+  });
+
   it("records deploy-gated permission posture without opening 8098", () => {
     const receipt = createPermissionPostureReceipt("deploy-gated", new Date("2026-07-01T00:00:00.000Z"));
 
diff --git a/src/fable5/external-project-review.ts b/src/fable5/external-project-review.ts
index 75a7838..efde38d 100644
--- a/src/fable5/external-project-review.ts
+++ b/src/fable5/external-project-review.ts
@@ -60,7 +60,7 @@ export function createOpenCovenReviewReceipt(now = new Date()): ExternalProjectR
 }
 
 
-export function createSkillsRepoReviewReceipt(repo: "mattpocock/skills" | "AI-Builder-Club/skills", now = new Date()): ExternalProjectReviewReceipt {
+export function createSkillsRepoReviewReceipt(repo: "mattpocock/skills" | "AI-Builder-Club/skills" | "affaan-m/ECC", now = new Date()): ExternalProjectReviewReceipt {
   const rows: Record<typeof repo, Omit<ExternalProjectReviewReceipt, "schema" | "createdAt" | "repo" | "deployAttempted">> = {
     "mattpocock/skills": {
       url: "https://github.com/mattpocock/skills",
@@ -82,6 +82,16 @@ export function createSkillsRepoReviewReceipt(repo: "mattpocock/skills" | "AI-Bu
       decision: "learn-only",
       policy: "learn-patterns-no-vendored-code",
     },
+    "affaan-m/ECC": {
+      url: "https://github.com/affaan-m/ECC",
+      license: "MIT",
+      safeToVendor: false,
+      patternsLearned: ["agent harness optimization patterns", "skills and memory organization", "research-first development posture"],
+      adaptations: ["review harness ideas as advisory", "rewrite any useful pattern locally behind receipts", "keep Fable safety gates as authority"],
+      risks: ["external harness code is not local capability proof", "do not vendor or execute without review", "optimization claims need local receipts"],
+      decision: "learn-only",
+      policy: "learn-patterns-no-vendored-code",
+    },
   };
   return { schema: "fable.external_project.review.v1", createdAt: now.toISOString(), repo, ...rows[repo], deployAttempted: false };
 }