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feat: add file tools (read/write/edit/list_dir) for agent memory writes

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Enable the agent to persist memories by adding 4 SPIFFS file tools
(read_file, write_file, edit_file, list_dir) with path validation,
and update the system prompt with memory guidelines pointing to
/spiffs/memory/MEMORY.md and daily notes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
crispyberry
2026-02-07 17:54:52 +08:00
parent 0ed0febcd0
commit 31b15aa1f9
5 changed files with 351 additions and 2 deletions
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52
main/tools/tool_registry.c
View File

@@ -1,6 +1,7 @@
#include "tool_registry.h"
#include "tools/tool_web_search.h"
#include "tools/tool_get_time.h"
#include "tools/tool_files.h"
#include <string.h>
#include "esp_log.h"
@@ -78,6 +79,57 @@ esp_err_t tool_registry_init(void)
};
register_tool(&gt);
/* Register read_file */
mimi_tool_t rf = {
.name = "read_file",
.description = "Read a file from SPIFFS storage. Path must start with /spiffs/.",
.input_schema_json =
"{\"type\":\"object\","
"\"properties\":{\"path\":{\"type\":\"string\",\"description\":\"Absolute path starting with /spiffs/\"}},"
"\"required\":[\"path\"]}",
.execute = tool_read_file_execute,
};
register_tool(&rf);
/* Register write_file */
mimi_tool_t wf = {
.name = "write_file",
.description = "Write or overwrite a file on SPIFFS storage. Path must start with /spiffs/.",
.input_schema_json =
"{\"type\":\"object\","
"\"properties\":{\"path\":{\"type\":\"string\",\"description\":\"Absolute path starting with /spiffs/\"},"
"\"content\":{\"type\":\"string\",\"description\":\"File content to write\"}},"
"\"required\":[\"path\",\"content\"]}",
.execute = tool_write_file_execute,
};
register_tool(&wf);
/* Register edit_file */
mimi_tool_t ef = {
.name = "edit_file",
.description = "Find and replace text in a file on SPIFFS. Replaces first occurrence of old_string with new_string.",
.input_schema_json =
"{\"type\":\"object\","
"\"properties\":{\"path\":{\"type\":\"string\",\"description\":\"Absolute path starting with /spiffs/\"},"
"\"old_string\":{\"type\":\"string\",\"description\":\"Text to find\"},"
"\"new_string\":{\"type\":\"string\",\"description\":\"Replacement text\"}},"
"\"required\":[\"path\",\"old_string\",\"new_string\"]}",
.execute = tool_edit_file_execute,
};
register_tool(&ef);
/* Register list_dir */
mimi_tool_t ld = {
.name = "list_dir",
.description = "List files on SPIFFS storage, optionally filtered by path prefix.",
.input_schema_json =
"{\"type\":\"object\","
"\"properties\":{\"prefix\":{\"type\":\"string\",\"description\":\"Optional path prefix filter, e.g. /spiffs/memory/\"}},"
"\"required\":[]}",
.execute = tool_list_dir_execute,
};
register_tool(&ld);
build_tools_json();
ESP_LOGI(TAG, "Tool registry initialized");