diff --git a/changelog.md b/changelog.md
index e614d77..556c12c 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## 2025-10-17 - 2.6.1 - fix(runtime-adapters)
+Silence shell version checks for Bun and Deno; add local Claude settings
+
+- Replace smartshell.exec with execSilent in ts/tstest.classes.runtime.bun.ts to suppress output when checking Bun availability
+- Replace smartshell.exec with execSilent in ts/tstest.classes.runtime.deno.ts to suppress output when checking Deno availability
+- Add .claude/settings.local.json to record local Claude agent permissions/config used for development
+
 ## 2025-10-17 - 2.6.0 - feat(runtime-adapters)
 Add runtime environment availability check and logger output; normalize runtime version strings
 
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index a9f737f..7e82aa8 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@git.zone/tstest',
-  version: '2.6.0',
+  version: '2.6.1',
   description: 'a test utility to run tests that match test/**/*.ts'
 }
diff --git a/ts/tstest.classes.runtime.bun.ts b/ts/tstest.classes.runtime.bun.ts
index 63fcdb8..dd2d1d2 100644
--- a/ts/tstest.classes.runtime.bun.ts
+++ b/ts/tstest.classes.runtime.bun.ts
@@ -32,7 +32,7 @@ export class BunRuntimeAdapter extends RuntimeAdapter {
    */
   async checkAvailable(): Promise<RuntimeAvailability> {
     try {
-      const result = await this.smartshellInstance.exec('bun --version', {
+      const result = await this.smartshellInstance.execSilent('bun --version', {
         cwd: process.cwd(),
         onError: () => {
           // Ignore error
diff --git a/ts/tstest.classes.runtime.deno.ts b/ts/tstest.classes.runtime.deno.ts
index 0163bc2..617c5e8 100644
--- a/ts/tstest.classes.runtime.deno.ts
+++ b/ts/tstest.classes.runtime.deno.ts
@@ -51,7 +51,7 @@ export class DenoRuntimeAdapter extends RuntimeAdapter {
    */
   async checkAvailable(): Promise<RuntimeAvailability> {
     try {
-      const result = await this.smartshellInstance.exec('deno --version', {
+      const result = await this.smartshellInstance.execSilent('deno --version', {
         cwd: process.cwd(),
         onError: () => {
           // Ignore error