feat(HAI-099): remove truncation from summarizeToolArgs

- Remove 80-char truncation from bash command summaries in summarizeToolArgs
- Remove length guard from fallback string-valued arg path
- Update agent-logger tests to expect full strings without truncation
- Add test case for long string-valued fallback args
- Update executor tests to match new non-truncating behavior

packages/engine/src/agent-logger.test.ts

@@ -10,10 +10,15 @@ describe("summarizeToolArgs", () => {
     expect(summarizeToolArgs("bash", { command: "echo hello" })).toBe("echo hello");
   });
 
-  it("truncates long bash commands at 80 chars", () => {
-    const longCmd = "a".repeat(100);
+  it("returns long bash commands in full without truncation", () => {
+    const longCmd = "a".repeat(200);
     const result = summarizeToolArgs("Bash", { command: longCmd });
-    expect(result).toBe("a".repeat(80) + "…");
+    expect(result).toBe(longCmd);
+  });
+
+  it("returns long string-valued fallback args without truncation", () => {
+    const longVal = "x".repeat(200);
+    expect(summarizeToolArgs("unknown_tool", { description: longVal })).toBe(longVal);
   });
 
   it("returns file path for Read/Edit/Write", () => {

packages/engine/src/agent-logger.ts

@@ -6,7 +6,8 @@ const FLUSH_SIZE_BYTES = 1024;
 const FLUSH_INTERVAL_MS = 500;
 
 /**
- * Produce a short human-readable summary from tool arguments.
+ * Produce a human-readable summary from tool arguments.
+ * Returns the full argument value without truncation.
  * Returns `undefined` for unknown tools or when no meaningful arg is found.
  */
 export function summarizeToolArgs(name: string, args?: Record<string, unknown>): string | undefined {
@@ -15,9 +16,7 @@ export function summarizeToolArgs(name: string, args?: Record<string, unknown>):
 
   if (lowerName === "bash") {
     const cmd = args.command;
-    if (typeof cmd === "string") {
-      return cmd.length > 80 ? cmd.slice(0, 80) + "…" : cmd;
-    }
+    if (typeof cmd === "string") return cmd;
   }
 
   if (lowerName === "read" || lowerName === "edit" || lowerName === "write") {
@@ -25,9 +24,9 @@ export function summarizeToolArgs(name: string, args?: Record<string, unknown>):
     if (typeof p === "string") return p;
   }
 
-  // Fallback: return first string-valued arg if short enough
+  // Fallback: return first string-valued arg
   for (const val of Object.values(args)) {
-    if (typeof val === "string" && val.length <= 80) return val;
+    if (typeof val === "string") return val;
   }
 
   return undefined;

packages/engine/src/executor.test.ts

@@ -883,10 +883,10 @@ describe("summarizeToolArgs", () => {
     expect(summarizeToolArgs("bash", { command: "echo hello" })).toBe("echo hello");
   });
 
-  it("truncates long bash commands to 80 chars", () => {
+  it("returns long bash commands in full without truncation", () => {
     const longCmd = "a".repeat(100);
     const result = summarizeToolArgs("Bash", { command: longCmd });
-    expect(result).toBe("a".repeat(80) + "…");
+    expect(result).toBe(longCmd);
   });
 
   it("returns path for read/edit/write tools", () => {