diff --git a/src/agent/memoryGit.ts b/src/agent/memoryGit.ts
index 8bcdb34..14f7504 100644
--- a/src/agent/memoryGit.ts
+++ b/src/agent/memoryGit.ts
@@ -150,19 +150,20 @@ async function configureLocalCredentialHelper(
  * Rules:
  * - Frontmatter is REQUIRED (must start with ---)
  * - Must be properly closed with ---
- * - Required fields: description (non-empty string), limit (positive integer)
+ * - Required fields: description (non-empty string)
  * - read_only is a PROTECTED field: agent cannot add, remove, or change it.
  *   Files where HEAD has read_only: true cannot be modified at all.
- * - Only allowed agent-editable keys: description, limit
+ * - Only allowed agent-editable key: description
+ * - Legacy key 'limit' is tolerated for backward compatibility
  * - read_only may exist (from server) but agent must not change it
  */
 export const PRE_COMMIT_HOOK_SCRIPT = `#!/usr/bin/env bash
 # Validate frontmatter in staged memory .md files
 # Installed by Letta Code CLI
 
-AGENT_EDITABLE_KEYS="description limit"
+AGENT_EDITABLE_KEYS="description"
 PROTECTED_KEYS="read_only"
-ALL_KNOWN_KEYS="description limit read_only"
+ALL_KNOWN_KEYS="description read_only limit"
 errors=""
 
 # Skills must always be directories: skills/<name>/SKILL.md
@@ -214,7 +215,6 @@ for file in $(git diff --cached --name-only --diff-filter=ACM | grep -E '^(memor
 
   # Track required fields
   has_description=false
-  has_limit=false
 
   # Validate each line
   while IFS= read -r line; do
@@ -255,10 +255,7 @@ for file in $(git diff --cached --name-only --diff-filter=ACM | grep -E '^(memor
     # Validate value types
     case "$key" in
       limit)
-        has_limit=true
-        if ! echo "$value" | grep -qE '^[0-9]+$' || [ "$value" = "0" ]; then
-          errors="$errors\\n  $file: 'limit' must be a positive integer, got '$value'"
-        fi
+        # Legacy field accepted for backward compatibility.
         ;;
       description)
         has_description=true
@@ -273,9 +270,6 @@ for file in $(git diff --cached --name-only --diff-filter=ACM | grep -E '^(memor
   if [ "$has_description" = "false" ]; then
     errors="$errors\\n  $file: missing required field 'description'"
   fi
-  if [ "$has_limit" = "false" ]; then
-    errors="$errors\\n  $file: missing required field 'limit'"
-  fi
 
   # Check if protected keys were removed (existed in HEAD but not in staged)
   if [ -n "$head_content" ]; then
diff --git a/src/tests/agent/memoryGit.precommit.test.ts b/src/tests/agent/memoryGit.precommit.test.ts
index db2587d..7f25df6 100644
--- a/src/tests/agent/memoryGit.precommit.test.ts
+++ b/src/tests/agent/memoryGit.precommit.test.ts
@@ -53,7 +53,7 @@ function tryCommit(): { success: boolean; output: string } {
 }
 
 /** Valid frontmatter for convenience */
-const VALID_FM = "---\ndescription: Test block\nlimit: 20000\n---\n\n";
+const VALID_FM = "---\ndescription: Test block\n---\n\n";
 
 beforeEach(() => {
   tempDir = mkdtempSync(join(tmpdir(), "memgit-test-"));
@@ -92,7 +92,7 @@ describe("pre-commit hook: frontmatter required", () => {
   test("rejects unclosed frontmatter", () => {
     writeAndStage(
       "memory/system/broken.md",
-      "---\ndescription: oops\nlimit: 20000\n\nContent without closing ---\n",
+      "---\ndescription: oops\n\nContent without closing ---\n",
     );
     const result = tryCommit();
     expect(result.success).toBe(false);
@@ -102,29 +102,16 @@ describe("pre-commit hook: frontmatter required", () => {
 
 describe("pre-commit hook: required fields", () => {
   test("rejects missing description", () => {
-    writeAndStage(
-      "memory/system/bad.md",
-      "---\nlimit: 20000\n---\n\nContent.\n",
-    );
+    writeAndStage("memory/system/bad.md", "---\n---\n\nContent.\n");
     const result = tryCommit();
     expect(result.success).toBe(false);
     expect(result.output).toContain("missing required field 'description'");
   });
 
-  test("rejects missing limit", () => {
-    writeAndStage(
-      "memory/system/bad.md",
-      "---\ndescription: A block\n---\n\nContent.\n",
-    );
-    const result = tryCommit();
-    expect(result.success).toBe(false);
-    expect(result.output).toContain("missing required field 'limit'");
-  });
-
   test("rejects empty description", () => {
     writeAndStage(
       "memory/system/bad.md",
-      "---\ndescription:\nlimit: 20000\n---\n\nContent.\n",
+      "---\ndescription:\n---\n\nContent.\n",
     );
     const result = tryCommit();
     expect(result.success).toBe(false);
@@ -133,50 +120,10 @@ describe("pre-commit hook: required fields", () => {
 });
 
 describe("pre-commit hook: field validation", () => {
-  test("rejects non-integer limit", () => {
-    writeAndStage(
-      "memory/system/bad.md",
-      "---\ndescription: valid\nlimit: abc\n---\n\nContent.\n",
-    );
-    const result = tryCommit();
-    expect(result.success).toBe(false);
-    expect(result.output).toContain("positive integer");
-  });
-
-  test("rejects zero limit", () => {
-    writeAndStage(
-      "memory/system/bad.md",
-      "---\ndescription: valid\nlimit: 0\n---\n\nContent.\n",
-    );
-    const result = tryCommit();
-    expect(result.success).toBe(false);
-    expect(result.output).toContain("positive integer");
-  });
-
-  test("rejects negative limit", () => {
-    writeAndStage(
-      "memory/system/bad.md",
-      "---\ndescription: valid\nlimit: -5\n---\n\nContent.\n",
-    );
-    const result = tryCommit();
-    expect(result.success).toBe(false);
-    expect(result.output).toContain("positive integer");
-  });
-
-  test("rejects float limit", () => {
-    writeAndStage(
-      "memory/system/bad.md",
-      "---\ndescription: valid\nlimit: 20.5\n---\n\nContent.\n",
-    );
-    const result = tryCommit();
-    expect(result.success).toBe(false);
-    expect(result.output).toContain("positive integer");
-  });
-
-  test("allows limit with trailing whitespace", () => {
+  test("allows legacy limit key for backward compatibility", () => {
     writeAndStage(
       "memory/system/ok.md",
-      "---\ndescription: test\nlimit: 20000  \n---\n\nContent.\n",
+      "---\ndescription: test\nlimit: legacy\n---\n\nContent.\n",
     );
     const result = tryCommit();
     expect(result.success).toBe(true);
@@ -200,7 +147,7 @@ describe("pre-commit hook: read_only protection", () => {
     rmSync(hookPath);
     writeAndStage(
       "memory/system/skills.md",
-      "---\ndescription: Skills\nlimit: 20000\nread_only: true\n---\n\nOriginal.\n",
+      "---\ndescription: Skills\nread_only: true\n---\n\nOriginal.\n",
     );
     tryCommit();
     writeFileSync(hookPath, PRE_COMMIT_HOOK_SCRIPT, { mode: 0o755 });
@@ -208,7 +155,7 @@ describe("pre-commit hook: read_only protection", () => {
     // Second commit: try to modify it
     writeAndStage(
       "memory/system/skills.md",
-      "---\ndescription: Skills\nlimit: 20000\nread_only: true\n---\n\nModified.\n",
+      "---\ndescription: Skills\nread_only: true\n---\n\nModified.\n",
     );
     const result = tryCommit();
     expect(result.success).toBe(false);
@@ -218,7 +165,7 @@ describe("pre-commit hook: read_only protection", () => {
   test("rejects agent adding read_only to new file", () => {
     writeAndStage(
       "memory/system/new.md",
-      "---\ndescription: New block\nlimit: 20000\nread_only: false\n---\n\nContent.\n",
+      "---\ndescription: New block\nread_only: false\n---\n\nContent.\n",
     );
     const result = tryCommit();
     expect(result.success).toBe(false);
@@ -232,7 +179,7 @@ describe("pre-commit hook: read_only protection", () => {
     rmSync(hookPath);
     writeAndStage(
       "memory/system/block.md",
-      "---\ndescription: A block\nlimit: 20000\nread_only: false\n---\n\nContent.\n",
+      "---\ndescription: A block\nread_only: false\n---\n\nContent.\n",
     );
     tryCommit();
     // Re-install hook
@@ -241,7 +188,7 @@ describe("pre-commit hook: read_only protection", () => {
     // Now try to change read_only
     writeAndStage(
       "memory/system/block.md",
-      "---\ndescription: A block\nlimit: 20000\nread_only: true\n---\n\nContent.\n",
+      "---\ndescription: A block\nread_only: true\n---\n\nContent.\n",
     );
     const result = tryCommit();
     expect(result.success).toBe(false);
@@ -254,7 +201,7 @@ describe("pre-commit hook: read_only protection", () => {
     rmSync(hookPath);
     writeAndStage(
       "memory/system/block.md",
-      "---\ndescription: A block\nlimit: 20000\nread_only: false\n---\n\nOriginal.\n",
+      "---\ndescription: A block\nread_only: false\n---\n\nOriginal.\n",
     );
     tryCommit();
     writeFileSync(hookPath, PRE_COMMIT_HOOK_SCRIPT, { mode: 0o755 });
@@ -262,7 +209,7 @@ describe("pre-commit hook: read_only protection", () => {
     // Modify content but keep read_only the same
     writeAndStage(
       "memory/system/block.md",
-      "---\ndescription: A block\nlimit: 20000\nread_only: false\n---\n\nUpdated.\n",
+      "---\ndescription: A block\nread_only: false\n---\n\nUpdated.\n",
     );
     const result = tryCommit();
     expect(result.success).toBe(true);
@@ -274,7 +221,7 @@ describe("pre-commit hook: read_only protection", () => {
     rmSync(hookPath);
     writeAndStage(
       "memory/system/block.md",
-      "---\ndescription: A block\nlimit: 20000\nread_only: false\n---\n\nContent.\n",
+      "---\ndescription: A block\nread_only: false\n---\n\nContent.\n",
     );
     tryCommit();
     writeFileSync(hookPath, PRE_COMMIT_HOOK_SCRIPT, { mode: 0o755 });
@@ -282,7 +229,7 @@ describe("pre-commit hook: read_only protection", () => {
     // Remove read_only from frontmatter
     writeAndStage(
       "memory/system/block.md",
-      "---\ndescription: A block\nlimit: 20000\n---\n\nContent.\n",
+      "---\ndescription: A block\n---\n\nContent.\n",
     );
     const result = tryCommit();
     expect(result.success).toBe(false);
diff --git a/src/tools/impl/Memory.ts b/src/tools/impl/Memory.ts
index f89c75d..eb2edc4 100644
--- a/src/tools/impl/Memory.ts
+++ b/src/tools/impl/Memory.ts
@@ -85,14 +85,11 @@ interface MemoryResult {
 interface ParsedMemoryFile {
   frontmatter: {
     description: string;
-    limit: number;
     read_only?: string;
   };
   body: string;
 }
 
-const DEFAULT_LIMIT = 2000;
-
 export async function memory(args: MemoryArgs): Promise<MemoryResult> {
   validateRequiredParams(args, ["command", "reason"], "memory");
 
@@ -126,7 +123,6 @@ export async function memory(args: MemoryArgs): Promise<MemoryResult> {
     const rendered = renderMemoryFile(
       {
         description,
-        limit: DEFAULT_LIMIT,
       },
       body,
     );
@@ -451,7 +447,6 @@ function parseMemoryFile(content: string): ParsedMemoryFile {
   const body = match[2] ?? "";
 
   let description: string | undefined;
-  let limit: number | undefined;
   let readOnly: string | undefined;
 
   for (const line of frontmatterText.split(/\r?\n/)) {
@@ -462,11 +457,6 @@ function parseMemoryFile(content: string): ParsedMemoryFile {
 
     if (key === "description") {
       description = value;
-    } else if (key === "limit") {
-      const parsedLimit = Number.parseInt(value, 10);
-      if (!Number.isNaN(parsedLimit)) {
-        limit = parsedLimit;
-      }
     } else if (key === "read_only") {
       readOnly = value;
     }
@@ -475,16 +465,9 @@ function parseMemoryFile(content: string): ParsedMemoryFile {
   if (!description || !description.trim()) {
     throw new Error("memory: target file frontmatter is missing 'description'");
   }
-  if (!limit || !Number.isInteger(limit) || limit <= 0) {
-    throw new Error(
-      "memory: target file frontmatter is missing a valid positive 'limit'",
-    );
-  }
-
   return {
     frontmatter: {
       description,
-      limit,
       ...(readOnly !== undefined ? { read_only: readOnly } : {}),
     },
     body,
@@ -492,21 +475,16 @@ function parseMemoryFile(content: string): ParsedMemoryFile {
 }
 
 function renderMemoryFile(
-  frontmatter: { description: string; limit: number; read_only?: string },
+  frontmatter: { description: string; read_only?: string },
   body: string,
 ): string {
   const description = frontmatter.description.trim();
   if (!description) {
     throw new Error("memory: 'description' must not be empty");
   }
-  if (!Number.isInteger(frontmatter.limit) || frontmatter.limit <= 0) {
-    throw new Error("memory: 'limit' must be a positive integer");
-  }
-
   const lines = [
     "---",
     `description: ${sanitizeFrontmatterValue(description)}`,
-    `limit: ${frontmatter.limit}`,
   ];
 
   if (frontmatter.read_only !== undefined) {