fix: address mailchimp review blockers

.gitignore

@@ -87,6 +87,7 @@
 !/macrocli/
 !/sbox/
 !/quietshrink/
+!/mailchimp/
 
 # Step 5: Inside each software dir, ignore everything (including dotfiles)
 /gimp/*
@@ -181,6 +182,8 @@
 /sbox/.*
 /quietshrink/*
 /quietshrink/.*
+/mailchimp/*
+/mailchimp/.*
 
 # Step 6: ...except agent-harness/
 !/gimp/agent-harness/
@@ -235,6 +238,7 @@
 !/macrocli/agent-harness/
 !/sbox/agent-harness/
 !/quietshrink/agent-harness/
+!/mailchimp/agent-harness/
 
 # Exclude non-gedit demo macros from macrocli (local only)
 /macrocli/agent-harness/cli_anything/macrocli/macro_definitions/demo/flameshot*

README.md

@@ -866,7 +866,7 @@ Each application received complete, production-ready CLI interfaces — not demo
 <td>Email Marketing &amp; Automation</td>
 <td><code>cli-anything-mailchimp</code></td>
 <td>Mailchimp Marketing API v3.0</td>
-<td align="center">✅ <a href="mailchimp/agent-harness/">292 cmds</a></td>
+<td align="center">✅ <a href="mailchimp/agent-harness/">303 cmds</a></td>
 </tr>
 <tr>
 <td align="center"><strong>📚 <a href="zotero/agent-harness/">Zotero</a></strong></td>
@@ -1169,7 +1169,7 @@ cli-anything/
 ├── 🎵 audacity/agent-harness/           # Audacity CLI (161 tests)
 ├── 🌐 browser/agent-harness/            # Browser CLI (DOMShell MCP, new)
 ├── 📄 libreoffice/agent-harness/        # LibreOffice CLI (158 tests)
-├── 📧 mailchimp/agent-harness/          # Mailchimp Marketing API CLI (292 commands, 27 unit tests)
+├── 📧 mailchimp/agent-harness/          # Mailchimp Marketing API CLI (303 commands, 36 unit tests)
 ├── 📚 zotero/agent-harness/             # Zotero CLI (new, write import support)
 ├── 📝 mubu/agent-harness/               # Mubu CLI (96 tests)
 ├── 📹 obs-studio/agent-harness/         # OBS Studio CLI (153 tests)

mailchimp/agent-harness/MAILCHIMP.md

@@ -4,7 +4,7 @@
 
 `cli-anything-mailchimp` makes the [Mailchimp Marketing API v3.0](https://mailchimp.com/developer/marketing/docs/fundamentals/) fully agent-native. Every endpoint from the official Swagger spec is exposed as a typed Click command, with JSON output and REPL mode.
 
-**292 commands across 30 resource groups**, covering the full Marketing API surface.
+**303 commands across 30 resource groups**, covering the full Marketing API surface.
 
 ---
 
@@ -114,7 +114,7 @@ Collection commands expose Mailchimp's native `count` and `offset` query paramet
 
 ## Design Decisions
 
-1. **Code generation from spec** — 292 commands are auto-generated from Mailchimp's public Swagger 2.0 spec via `_codegen/generate.py`. Generated files are committed so end-users get fast `--help` without downloading the spec.
+1. **Code generation from spec** — 303 commands are auto-generated from Mailchimp's public Swagger 2.0 spec via `_codegen/generate.py`. Generated files are committed so end-users get fast `--help` without downloading the spec.
 
 2. **Env-var-only auth** — per CLI-Anything convention, no config files. `MAILCHIMP_API_KEY` is the single source of truth.
 

mailchimp/agent-harness/cli_anything/mailchimp/core/client.py

@@ -50,7 +50,10 @@ class MailchimpClient:
                 "Export it before use: export MAILCHIMP_API_KEY=<key>-<dc>"
             )
         self._key = key
-        self._dc = _server_prefix(key)
+        try:
+            self._dc = _server_prefix(key)
+        except ValueError as e:
+            raise MailchimpAuthError(str(e)) from e
         self._base = _BASE.format(dc=self._dc)
         self._session = requests.Session()
         self._session.auth = ("anystring", key)

mailchimp/agent-harness/cli_anything/mailchimp/skills/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: cli-anything-mailchimp
-description: CLI harness for the Mailchimp Marketing API v3.0 — 292 commands across 30 resource groups (lists, campaigns, reports, automations, ecommerce, templates, and more). Supports JSON output and interactive REPL mode.
+description: CLI harness for the Mailchimp Marketing API v3.0 — 303 commands across 30 resource groups (lists, campaigns, reports, automations, ecommerce, templates, and more). Supports JSON output and interactive REPL mode.
 ---
 
 # cli-anything-mailchimp

mailchimp/agent-harness/cli_anything/mailchimp/tests/test_core.py

@@ -80,6 +80,21 @@ class TestMailchimpClient(unittest.TestCase):
             if orig:
                 os.environ["MAILCHIMP_API_KEY"] = orig
 
+    def test_get_client_exits_cleanly_on_key_without_suffix(self):
+        from cli_anything.mailchimp.core.client import get_client
+        import os
+
+        orig = os.environ.get("MAILCHIMP_API_KEY")
+        os.environ["MAILCHIMP_API_KEY"] = "invalid"
+        try:
+            with self.assertRaises(SystemExit):
+                get_client()
+        finally:
+            if orig is None:
+                os.environ.pop("MAILCHIMP_API_KEY", None)
+            else:
+                os.environ["MAILCHIMP_API_KEY"] = orig
+
     @resp_lib.activate
     def test_get_success(self):
         from cli_anything.mailchimp.core.client import MailchimpClient

skills/cli-anything-mailchimp/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: cli-anything-mailchimp
-description: CLI harness for the Mailchimp Marketing API v3.0 — 292 commands across 30 resource groups (lists, campaigns, reports, automations, ecommerce, templates, and more). Supports JSON output and interactive REPL mode.
+description: CLI harness for the Mailchimp Marketing API v3.0 — 303 commands across 30 resource groups (lists, campaigns, reports, automations, ecommerce, templates, and more). Supports JSON output and interactive REPL mode.
 ---
 
 # cli-anything-mailchimp