feat: removePrompt/removeRoot/removeResourceTemplate, ASSERT_STR_NOT_CONTAINS — bump to v0.27.4

- Add removePrompt(), removeRoot(), removeResourceTemplate() methods
- Add ASSERT_STR_NOT_CONTAINS test macro
- Add 7 tests for new removal methods (827 total)
- Bump version to 0.27.4

Author: Nicola Spieser

README.md

@@ -33,7 +33,7 @@
 |---|:---:|:---:|:---:|
 | Runs on the MCU | ✅ | ✅ | ❌ CLI tool |
 | MCP spec compliant | ✅ 2025-03-26 | ❌ custom WS | ❌ |
-| Actually compiles | ✅ 820 tests | ❌ self-described | N/A |
+| Actually compiles | ✅ 827 tests | ❌ self-described | N/A |
 | Streamable HTTP + SSE | ✅ | ❌ | ❌ |
 | WebSocket transport | ✅ | ✅ | ❌ |
 | Claude Desktop bridge | ✅ | ❌ | ❌ |

library.json

@@ -1,6 +1,6 @@
 {
   "name": "mcpd",
-  "version": "0.27.3",
+  "version": "0.27.4",
   "description": "MCP Server SDK for Microcontrollers — Expose ESP32/RP2040/STM32 hardware as AI-accessible tools via Model Context Protocol",
   "keywords": [
     "mcp",

library.properties

@@ -1,5 +1,5 @@
 name=mcpd
-version=0.27.3
+version=0.27.4
 author=Nicola Spieser
 maintainer=Nicola Spieser <redbasecap-buiss@users.noreply.github.com>
 sentence=MCP Server SDK for Microcontrollers

src/mcpd.cpp

@@ -102,6 +102,36 @@ bool Server::removeResource(const char* uri) {
     return false;
 }
 
+bool Server::removeResourceTemplate(const char* uriTemplate) {
+    for (auto it = _resourceTemplates.begin(); it != _resourceTemplates.end(); ++it) {
+        if (it->uriTemplate == uriTemplate) {
+            _resourceTemplates.erase(it);
+            return true;
+        }
+    }
+    return false;
+}
+
+bool Server::removePrompt(const char* name) {
+    for (auto it = _prompts.begin(); it != _prompts.end(); ++it) {
+        if (it->name == name) {
+            _prompts.erase(it);
+            return true;
+        }
+    }
+    return false;
+}
+
+bool Server::removeRoot(const char* uri) {
+    for (auto it = _roots.begin(); it != _roots.end(); ++it) {
+        if (it->uri == uri) {
+            _roots.erase(it);
+            return true;
+        }
+    }
+    return false;
+}
+
 void Server::notifyToolsChanged() {
     JsonDocument doc;
     doc["jsonrpc"] = "2.0";

src/mcpd.h

@@ -42,7 +42,7 @@
 #include "MCPTransportBLE.h"
 #endif
 
-#define MCPD_VERSION "0.27.3"
+#define MCPD_VERSION "0.27.4"
 #define MCPD_MCP_PROTOCOL_VERSION "2025-03-26"
 
 namespace mcpd {
@@ -302,6 +302,21 @@ class Server {
      */
     bool removeResource(const char* uri);
 
+    /**
+     * Remove a resource template by URI template. Returns true if found and removed.
+     */
+    bool removeResourceTemplate(const char* uriTemplate);
+
+    /**
+     * Remove a prompt by name. Returns true if found and removed.
+     */
+    bool removePrompt(const char* name);
+
+    /**
+     * Remove a root by URI. Returns true if found and removed.
+     */
+    bool removeRoot(const char* uri);
+
 #ifdef MCPD_TEST
 public:  // Allow test access to internals
 #else

test/test_framework.h

@@ -50,6 +50,13 @@ static int _tests_failed = 0;
             throw "String does not contain: " #needle; \
     } while(0)
 
+#define ASSERT_STR_NOT_CONTAINS(haystack, needle) \
+    do { \
+        std::string _h(haystack); \
+        if (_h.find(needle) != std::string::npos) \
+            throw "String unexpectedly contains: " #needle; \
+    } while(0)
+
 #define TEST_SUMMARY() \
     do { \
         printf("\n  ────────────────────────────────────────\n"); \

test/test_infrastructure.cpp

@@ -719,7 +719,7 @@ TEST(completion_manager_no_providers) {
 // ═══════════════════════════════════════════════════════════════════════
 
 TEST(version_constants) {
-    ASSERT_EQ(String(MCPD_VERSION), String("0.27.3"));
+    ASSERT_EQ(String(MCPD_VERSION), String("0.27.4"));
     ASSERT_EQ(String(MCPD_MCP_PROTOCOL_VERSION), String("2025-03-26"));
 }
 

test/test_jsonrpc.cpp

@@ -712,7 +712,7 @@ TEST(version_is_0_11_0_compat) {
     auto* s = makeTestServer();
     String req = R"({"jsonrpc":"2.0","id":250,"method":"initialize","params":{}})";
     String resp = s->_processJsonRpc(req);
-    ASSERT_STR_CONTAINS(resp.c_str(), "\"version\":\"0.27.3\"");
+    ASSERT_STR_CONTAINS(resp.c_str(), "\"version\":\"0.27.4\"");
 }
 
 // ── v0.6.0 Tests: Tool Annotations ────────────────────────────────────
@@ -1567,7 +1567,7 @@ TEST(version_0_11_0) {
     Server* s = makeTestServer();
     String req = R"({"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-03-26","clientInfo":{"name":"test"}}})";
     String resp = s->_processJsonRpc(req);
-    ASSERT_STR_CONTAINS(resp.c_str(), "0.27.3");
+    ASSERT_STR_CONTAINS(resp.c_str(), "0.27.4");
 }
 
 // ── Watchdog Tool Tests ────────────────────────────────────────────────
@@ -1811,7 +1811,7 @@ TEST(diagnostics_version_macros) {
     ASSERT(strlen(MCPD_VERSION) > 0);
     ASSERT(strlen(MCPD_MCP_PROTOCOL_VERSION) > 0);
     ASSERT_STR_CONTAINS(MCPD_MCP_PROTOCOL_VERSION, "2025");
-    ASSERT_STR_CONTAINS(MCPD_VERSION, "0.27.3");
+    ASSERT_STR_CONTAINS(MCPD_VERSION, "0.27.4");
 }
 
 // ── Batch JSON-RPC edge cases ──────────────────────────────────────────
@@ -2824,6 +2824,59 @@ TEST(relay_interlock_concept) {
     ASSERT_STR_CONTAINS(resp.c_str(), "heater turned OFF");
 }
 
+// ── Remove Prompt/Root/ResourceTemplate Tests ──────────────────────────
+
+TEST(remove_prompt_by_name) {
+    auto* s = makeTestServer();
+    // Server already has "greet" prompt from makeTestServer
+    ASSERT(s->removePrompt("greet") == true);
+    String req = R"({"jsonrpc":"2.0","id":900,"method":"prompts/list","params":{}})";
+    String resp = s->_processJsonRpc(req);
+    ASSERT_STR_CONTAINS(resp.c_str(), "\"prompts\":[]");
+}
+
+TEST(remove_prompt_nonexistent) {
+    auto* s = makeTestServer();
+    ASSERT(s->removePrompt("no_such_prompt") == false);
+}
+
+TEST(remove_prompt_idempotent) {
+    auto* s = makeTestServer();
+    ASSERT(s->removePrompt("greet") == true);
+    ASSERT(s->removePrompt("greet") == false);
+}
+
+TEST(remove_root_by_uri) {
+    auto* s = makeTestServer();
+    s->addRoot("file:///workspace", "Workspace");
+    s->addRoot("file:///config", "Config");
+    ASSERT(s->removeRoot("file:///workspace") == true);
+    String req = R"({"jsonrpc":"2.0","id":910,"method":"roots/list","params":{}})";
+    String resp = s->_processJsonRpc(req);
+    ASSERT_STR_NOT_CONTAINS(resp.c_str(), "workspace");
+    ASSERT_STR_CONTAINS(resp.c_str(), "config");
+}
+
+TEST(remove_root_nonexistent) {
+    auto* s = makeTestServer();
+    ASSERT(s->removeRoot("file:///nope") == false);
+}
+
+TEST(remove_resource_template_by_uri) {
+    auto* s = makeTestServer();
+    s->addResourceTemplate("sensor://{id}/reading", "Sensor", "Read sensor", "application/json",
+        [](const std::map<String, String>&) -> String { return "{}"; });
+    ASSERT(s->removeResourceTemplate("sensor://{id}/reading") == true);
+    String req = R"({"jsonrpc":"2.0","id":920,"method":"resources/templates/list","params":{}})";
+    String resp = s->_processJsonRpc(req);
+    ASSERT_STR_CONTAINS(resp.c_str(), "\"resourceTemplates\":[]");
+}
+
+TEST(remove_resource_template_nonexistent) {
+    auto* s = makeTestServer();
+    ASSERT(s->removeResourceTemplate("nope://{x}") == false);
+}
+
 // ── Main ───────────────────────────────────────────────────────────────
 
 int main() {