feat: Created the coder and sql agents

assets/agents/sql/README.md

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+# SQL
+
+An AI agent that helps you manage a SQL database.
+
+> The tool script uses [usql](https://github.com/xo/usql) to interact with SQL, it supports all mainstream databases. 

assets/agents/sql/config.yaml

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+name: Sql
+description: An AI agent that helps you manage any SQL database
+version: 0.1.0
+instructions: |
+  You are an AI agent that manages a SQL database.
+  Prefix all referenced tables with the name of the schema that they are in.
+
+  For all sqlite databases, prefix each table name with 'main' as the schema
+
+
+  Available tools:
+  {{__tools__}}
+variables:
+  - name: dsn
+    description: The database connection url. e.g. pgsql://user:pass@host:port
+conversation_starters:
+  - What you can do?

assets/agents/sql/tools.sh

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+#!/usr/bin/env bash
+
+set -e
+
+# @meta require-tools usql
+# @env LLM_OUTPUT=/dev/stdout The output path
+# @env LLM_AGENT_VAR_DSN! The database connection url. e.g. pgsql://user:pass@host:port 
+
+PROMPT_UTILS="${LLM_ROOT_DIR:-$(dirname "${BASH_SOURCE[0]}")/..}/utils/prompt-utils.sh"
+# shellcheck disable=SC1090
+source "$PROMPT_UTILS"
+
+# @cmd Execute a SELECT query
+# @option --query!                  SELECT SQL query to execute
+read_query() {
+    # shellcheck disable=SC2154
+    if ! grep -qi '^select' <<<"$argc_query"; then
+        error "only SELECT queries are allowed" >&2
+        exit 1
+    fi
+
+    _run_sql "$argc_query"
+}
+
+# @cmd Execute an SQL query
+# @option --query!                  SQL query to execute
+write_query() {
+    guard_operation "Execute SQL?"
+    _run_sql "$argc_query"
+}
+
+# @cmd List all tables
+list_tables() {
+    _run_sql "\dt+"
+}
+
+# @cmd Get the schema information for a specific table
+# @option --table-name!             Name of the table to describe
+describe_table() {
+    # shellcheck disable=SC2154
+    _run_sql "\d $argc_table_name"
+}
+
+_run_sql() {
+    usql "$LLM_AGENT_VAR_DSN" -c "$1" >> "$LLM_OUTPUT"
+}