From d13044d267e459832d481d081a5666af776bf41d Mon Sep 17 00:00:00 2001
From: Didactyl User <didactyl@local>
Date: Tue, 28 Apr 2026 07:34:17 -0400
Subject: [PATCH] chore(agent): remove dead DM-history helper functions and
 orphaned constants

---
 src/agent.c | 81 -----------------------------------------------------
 1 file changed, 81 deletions(-)

diff --git a/src/agent.c b/src/agent.c
index 09cfce5..4e4c27d 100644
--- a/src/agent.c
+++ b/src/agent.c
@@ -35,8 +35,6 @@ static pthread_mutex_t g_context_part_names_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 #define AGENT_DEBOUNCE_WINDOW_SECONDS 5
 #define AGENT_DEBOUNCE_CACHE_SIZE 256
-#define AGENT_HISTORY_TURNS 12
-#define AGENT_HISTORY_QUERY_LIMIT 200
 #define AGENT_ADOPTED_SKILLS_CACHE_TTL_SECONDS 300
 #define AGENT_ADOPTED_SKILLS_MAX 24
 #define AGENT_ADOPTED_SKILL_CONTENT_MAX_CHARS 1800
@@ -1062,73 +1060,6 @@ static __attribute__((unused)) char* build_sender_verification_text(didactyl_sen
 }
 
 
-static __attribute__((unused)) int append_recent_admin_dm_history(cJSON* messages, const char* current_message) {
-    if (!messages || !g_cfg) {
-        return -1;
-    }
-
-    char* history_json = nostr_handler_get_dm_history_json(g_cfg->admin.pubkey, AGENT_HISTORY_TURNS);
-    if (!history_json) {
-        return 0;
-    }
-
-    cJSON* items = cJSON_Parse(history_json);
-    free(history_json);
-    if (!items || !cJSON_IsArray(items)) {
-        cJSON_Delete(items);
-        return 0;
-    }
-
-    const char* last_appended_role = NULL;
-    const char* last_appended_content = NULL;
-
-    int n = cJSON_GetArraySize(items);
-    for (int i = 0; i < n; i++) {
-        cJSON* item = cJSON_GetArrayItem(items, i);
-        cJSON* role = item ? cJSON_GetObjectItemCaseSensitive(item, "role") : NULL;
-        cJSON* content = item ? cJSON_GetObjectItemCaseSensitive(item, "content") : NULL;
-        cJSON* created_at = item ? cJSON_GetObjectItemCaseSensitive(item, "created_at") : NULL;
-
-        if (!role || !content || !cJSON_IsString(role) || !cJSON_IsString(content) ||
-            !role->valuestring || !content->valuestring) {
-            continue;
-        }
-
-        const char* role_s = role->valuestring;
-        const char* content_s = content->valuestring;
-        int role_is_user = (strcmp(role_s, "user") == 0);
-        if (!role_is_user && strcmp(role_s, "assistant") != 0) {
-            continue;
-        }
-
-        if (i == n - 1 && role_is_user && current_message && strcmp(content_s, current_message) == 0) {
-            continue;
-        }
-
-        if (last_appended_role && last_appended_content &&
-            strcmp(last_appended_role, role_s) == 0 &&
-            strcmp(last_appended_content, content_s) == 0) {
-            continue;
-        }
-
-        if (append_simple_message(messages, role_s, content_s) != 0) {
-            cJSON_Delete(items);
-            return -1;
-        }
-
-        cJSON* appended = cJSON_GetArrayItem(messages, cJSON_GetArraySize(messages) - 1);
-        if (appended && cJSON_IsObject(appended) && created_at && cJSON_IsNumber(created_at)) {
-            cJSON_AddNumberToObject(appended, "_ts", created_at->valuedouble);
-        }
-
-        last_appended_role = role_s;
-        last_appended_content = content_s;
-    }
-
-    cJSON_Delete(items);
-    return 0;
-}
-
 static cJSON* find_tag_value_string_local(cJSON* tags, const char* key) {
     if (!tags || !key || !cJSON_IsArray(tags)) {
         return NULL;
@@ -1797,18 +1728,6 @@ static __attribute__((unused)) int append_adopted_skills_context(cJSON* messages
     return rc;
 }
 
-static __attribute__((unused)) cJSON* build_recent_admin_dm_history_messages(const char* current_message) {
-    cJSON* messages = cJSON_CreateArray();
-    if (!messages) {
-        return NULL;
-    }
-    if (append_recent_admin_dm_history(messages, current_message) != 0) {
-        cJSON_Delete(messages);
-        return NULL;
-    }
-    return messages;
-}
-
 int agent_init(didactyl_config_t* config) {
     if (!config) {
         return -1;