diff --git a/compress-tool.ts b/compress-tool.ts
index 882107a..e02cecf 100644
--- a/compress-tool.ts
+++ b/compress-tool.ts
@@ -173,6 +173,7 @@ export function registerCompressTool(
 
           const sortedEntries = [...state.messageIdSnapshot.entries()]
             .filter(([id]) => id.startsWith('m'))  // only mNNN ids
+            .filter(([, ts]) => ts >= startTimestamp && ts <= endTimestamp)  // only within requested range
             .sort((a, b) => a[1] - b[1])
 
           // Walk sorted messages, grouping consecutive uncovered ones into gap ranges
@@ -213,7 +214,7 @@ export function registerCompressTool(
 
           throw new Error(
             `[compress] Range {startId: "${startId}", endId: "${endId}"} overlaps existing summaries: ${overlapInfo}. ` +
-            `Available ranges: ${gapInfo}`,
+            `Available ranges within your requested range: ${gapInfo}`,
           )
         }
 
diff --git a/package-lock.json b/package-lock.json
index 7d937d5..251699c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@complexthings/pi-dynamic-context-pruning",
-  "version": "1.0.6",
+  "version": "1.0.7",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@complexthings/pi-dynamic-context-pruning",
-      "version": "1.0.6",
+      "version": "1.0.7",
       "dependencies": {
         "jsonc-parser": "^3.3.1"
       },
@@ -913,9 +913,6 @@
       "cpu": [
         "arm64"
       ],
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -933,9 +930,6 @@
       "cpu": [
         "arm64"
       ],
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -953,9 +947,6 @@
       "cpu": [
         "riscv64"
       ],
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -973,9 +964,6 @@
       "cpu": [
         "x64"
       ],
-      "libc": [
-        "glibc"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [
@@ -993,9 +981,6 @@
       "cpu": [
         "x64"
       ],
-      "libc": [
-        "musl"
-      ],
       "license": "MIT",
       "optional": true,
       "os": [