diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
new file mode 100644
index 00000000..d407607a
--- /dev/null
+++ b/.github/copilot-instructions.md
@@ -0,0 +1,67 @@
+# GitHub Copilot Shell Scripting (sh) Review Instructions
+
+## 🎯 Overall Goal
+
+Your role is to act as a rigorous yet helpful senior engineer, reviewing Shell script code (`.sh` files). Ensure the code exhibits the highest levels of robustness, security, and portability.
+The review must focus on risks unique to Shell scripting, such as proper quoting, robust error handling, and the secure execution of external commands.
+
+## 📝 Required Output Format
+
+Please adhere to the previous format: organize the feedback into a single, structured report, using the three-level marking system:
+
+1.  **🔴 Critical Issues (Must Fix Before Merge)**
+2.  **🟡 Suggestions (Improvements to Consider)**
+3.  **✅ Good Practices (Points to Commend)**
+
+---
+
+## 🔍 Focus Areas and Rules for Shell
+
+### 1. Robustness and Error Handling
+
+* **Shebang:** Check that the script starts with the correct Shebang, must be "#!/usr/bin/env sh".
+* **Startup Options:** **(🔴 Critical)** Enforce the use of the following combination at the start of the script for safety and robustness:
+    * `set -e`: Exit immediately if a command exits with a non-zero status.
+    * `set -u`: Treat unset variables as an error and exit.
+    * `set -o pipefail`: Ensure the whole pipeline fails if any command in the pipe fails.
+* **Exit Codes:** Ensure functions and the main script use `exit 0` for success and a non-zero exit code upon failure.
+* **Temporary Files:** Check for the use of `mktemp` when creating temporary files to prevent race conditions and security risks.
+
+### 2. Security and Quoting
+
+* **Variable Quoting:** **(🔴 Critical)** Check that all variable expansions (like `$VAR` and `$(COMMAND)`) are properly enclosed in **double quotes** (i.e., `"$VAR"` and `"$(COMMAND)"`) to prevent **Word Splitting** and **Globbing**.
+* **Hardcoded Secrets:** **(🔴 Critical)** Find and flag any hardcoded passwords, keys, tokens, or authentication details.
+* **Untrusted Input:** Verify that all user input, command-line arguments (`$1`, `$2`, etc.), or environment variables are rigorously validated and sanitized before use.
+* **Avoid `eval`:** Warn against and suggest alternatives to using `eval`, as it can lead to arbitrary code execution.
+
+### 3. Readability and Maintainability
+
+* **Function Usage:** Recommend wrapping complex or reusable logic within clearly named functions.
+* **Local Variables:** Check that variables inside functions are declared using the `local` keyword to avoid unintentionally modifying global state.
+* **Naming Convention:** Variable names should use uppercase letters and underscores (e.g., `MY_VARIABLE`), or follow established project conventions.
+* **Test Conditions:** Encourage the use of Bash's **double brackets `[[ ... ]]`** for conditional tests, as it is generally safer and more powerful (e.g., supports pattern matching and avoids Word Splitting) than single brackets `[ ... ]`.
+* **Command Substitution:** Encourage using `$(command)` over backticks `` `command` `` for command substitution, as it is easier to nest and improves readability.
+
+### 4. External Commands and Environment
+
+* **`for` Loops:** Warn against patterns like `for i in $(cat file)` or `for i in $(ls)` and recommend the more robust `while IFS= read -r line` pattern for safely processing file contents or filenames that might contain spaces.
+* **Use existing acme.sh functions whenever possible.** For example: do not use `tr '[:upper:]' '[:lower:]'`, use `_lower_case` instead.
+* **Do not use `head -n`.** Use the `_head_n()` function instead.
+* **Do not use `curl` or `wget`.** Use the `_post()` and `_get()` functions instead.
+
+---
+
+### 5. Review Rules for Files Under `dnsapi/`:
+
+* **Each file must contain a `{filename}_add` function** for adding DNS TXT records. It should use `_readaccountconf_mutable` to read the API key and `_saveaccountconf_mutable` to save it. Do not use `_saveaccountconf` or `_readaccountconf`.
+
+
+## ❌ Things to Avoid
+
+* Do not comment on purely stylistic issues like spacing or indentation, which should be handled by tools like ShellCheck or Prettier.
+* Do not be overly verbose unless a significant issue is found. Keep feedback concise and actionable.
+
+
+
+
+
diff --git a/.github/workflows/DNS.yml b/.github/workflows/DNS.yml
index fbe1e61f..61e025e4 100644
--- a/.github/workflows/DNS.yml
+++ b/.github/workflows/DNS.yml
@@ -251,7 +251,7 @@ jobs:
           fi
           cd ../acmetest
           ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
@@ -306,7 +306,7 @@ jobs:
           fi
           cd ../acmetest
           ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
@@ -362,7 +362,7 @@ jobs:
           fi
           cd ../acmetest
           ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
@@ -418,7 +418,7 @@ jobs:
           fi
           cd ../acmetest
           ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
@@ -480,7 +480,7 @@ jobs:
           fi
           cd ../acmetest
           ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
@@ -534,7 +534,7 @@ jobs:
           fi
           cd ../acmetest
           ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
@@ -589,7 +589,7 @@ jobs:
           fi
           cd ../acmetest
           ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
@@ -648,7 +648,7 @@ jobs:
           fi
           cd ../acmetest
           ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
diff --git a/.github/workflows/DragonFlyBSD.yml b/.github/workflows/DragonFlyBSD.yml
index f3a85920..9c696621 100644
--- a/.github/workflows/DragonFlyBSD.yml
+++ b/.github/workflows/DragonFlyBSD.yml
@@ -67,7 +67,7 @@ jobs:
         run: |
           cd ../acmetest \
           && ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
diff --git a/.github/workflows/FreeBSD.yml b/.github/workflows/FreeBSD.yml
index e9ccf7ac..7539d17c 100644
--- a/.github/workflows/FreeBSD.yml
+++ b/.github/workflows/FreeBSD.yml
@@ -72,7 +72,7 @@ jobs:
         run: |
           cd ../acmetest \
           && ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
diff --git a/.github/workflows/Haiku.yml b/.github/workflows/Haiku.yml
index bfbde398..a6ba2793 100644
--- a/.github/workflows/Haiku.yml
+++ b/.github/workflows/Haiku.yml
@@ -75,7 +75,7 @@ jobs:
         run: |
           cd ../acmetest \
           && ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
diff --git a/.github/workflows/NetBSD.yml b/.github/workflows/NetBSD.yml
index e8107d91..ea04e49d 100644
--- a/.github/workflows/NetBSD.yml
+++ b/.github/workflows/NetBSD.yml
@@ -67,7 +67,7 @@ jobs:
         run: |
           cd ../acmetest \
           && ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
diff --git a/.github/workflows/Omnios.yml b/.github/workflows/Omnios.yml
index a166e26b..28446a47 100644
--- a/.github/workflows/Omnios.yml
+++ b/.github/workflows/Omnios.yml
@@ -71,7 +71,7 @@ jobs:
         run: |
           cd ../acmetest \
           && ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
diff --git a/.github/workflows/OpenBSD.yml b/.github/workflows/OpenBSD.yml
index b34c795b..e79b3870 100644
--- a/.github/workflows/OpenBSD.yml
+++ b/.github/workflows/OpenBSD.yml
@@ -72,7 +72,7 @@ jobs:
         run: |
           cd ../acmetest \
           && ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
diff --git a/.github/workflows/OpenIndiana.yml b/.github/workflows/OpenIndiana.yml
index 6447911b..f5133c89 100644
--- a/.github/workflows/OpenIndiana.yml
+++ b/.github/workflows/OpenIndiana.yml
@@ -71,7 +71,7 @@ jobs:
         run: |
           cd ../acmetest \
           && ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"
diff --git a/.github/workflows/Solaris.yml b/.github/workflows/Solaris.yml
index f5ce713b..1ae828ed 100644
--- a/.github/workflows/Solaris.yml
+++ b/.github/workflows/Solaris.yml
@@ -73,7 +73,7 @@ jobs:
         run: |
           cd ../acmetest \
           && ./letest.sh
-    - name: onError
+    - name: DebugOnError
       if: ${{ failure() }}
       run: |
         echo "See how to debug in VM:"