13 Commits

Author SHA1 Message Date
ff3419a714 Merge branch 'tree-sitter-tools' into 'develop' 2026-04-09 14:48:22 -06:00
a5899da4fb feat: Automatic runtime customization using shebangs 2026-04-09 14:16:02 -06:00
dedcef8ac5 test: Updated client stream tests to use the thread_rng from rand 2026-04-09 13:53:52 -06:00
d658f1d2fe build: Pulled additional features for rand dependency 2026-04-09 13:45:08 -06:00
6b4a45874f fix: TypeScript function args were being passed as objects rather than direct parameters 2026-04-09 13:32:16 -06:00
7839e1dbd9 build: upgraded dependencies to latest 2026-04-09 13:28:19 -06:00
78c3932f36 docs: Updated docs to talk about the new TypeScript-based tool support 2026-04-09 13:19:15 -06:00
11334149b0 feat: Created a demo TypeScript tool and a get_current_weather function in TypeScript 2026-04-09 13:18:41 -06:00
4caa035528 feat: Updated the Python demo tool to show all possible parameter types and variations 2026-04-09 13:18:18 -06:00
f30e81af08 fix: Added in forgotten wrapper scripts for TypeScript tools 2026-04-09 13:17:53 -06:00
4c75655f58 feat: Added TypeScript tool support using the refactored common ScriptedLanguage trait 2026-04-09 13:17:28 -06:00
f865892c28 refactor: Extracted common Python parser logic into a common.rs module 2026-04-09 13:16:35 -06:00
ebeb9c9b7d refactor: python tools now use tree-sitter queries instead of AST 2026-04-09 10:20:49 -06:00
19 changed files with 2647 additions and 739 deletions
Generated
+99 -331
View File
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] ]
@@ -5388,12 +5199,6 @@ version = "1.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6ce2be8dc25455e1f91df71bfa12ad37d7af1092ae736f3a6cd0e37bc7810596" checksum = "6ce2be8dc25455e1f91df71bfa12ad37d7af1092ae736f3a6cd0e37bc7810596"
[[package]]
name = "static_assertions"
version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
[[package]] [[package]]
name = "stop-words" name = "stop-words"
version = "0.9.0" version = "0.9.0"
@@ -5403,6 +5208,12 @@ dependencies = [
"serde_json", "serde_json",
] ]
[[package]]
name = "streaming-iterator"
version = "0.1.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2b2231b7c3057d5e4ad0156fb3dc807d900806020c5ffa3ee6ff2c8c76fb8520"
[[package]] [[package]]
name = "string_cache" name = "string_cache"
version = "0.8.9" version = "0.8.9"
@@ -5739,15 +5550,6 @@ dependencies = [
"time-core", "time-core",
] ]
[[package]]
name = "tiny-keccak"
version = "2.0.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "2c9d3793400a45f954c52e73d068316d76b6f4e36977e3fcebb13a2721e80237"
dependencies = [
"crunchy",
]
[[package]] [[package]]
name = "tinystr" name = "tinystr"
version = "0.8.3" version = "0.8.3"
@@ -6053,6 +5855,46 @@ dependencies = [
"tracing-log", "tracing-log",
] ]
[[package]]
name = "tree-sitter"
version = "0.26.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "887bd495d0582c5e3e0d8ece2233666169fa56a9644d172fc22ad179ab2d0538"
dependencies = [
"cc",
"regex",
"regex-syntax",
"serde_json",
"streaming-iterator",
"tree-sitter-language",
]
[[package]]
name = "tree-sitter-language"
version = "0.1.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "009994f150cc0cd50ff54917d5bc8bffe8cad10ca10d81c34da2ec421ae61782"
[[package]]
name = "tree-sitter-python"
version = "0.25.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6bf85fd39652e740bf60f46f4cda9492c3a9ad75880575bf14960f775cb74a1c"
dependencies = [
"cc",
"tree-sitter-language",
]
[[package]]
name = "tree-sitter-typescript"
version = "0.23.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6c5f76ed8d947a75cc446d5fccd8b602ebf0cde64ccf2ffa434d873d7a575eff"
dependencies = [
"cc",
"tree-sitter-language",
]
[[package]] [[package]]
name = "tree_magic_mini" name = "tree_magic_mini"
version = "3.2.2" version = "3.2.2"
@@ -6136,58 +5978,6 @@ dependencies = [
"syn", "syn",
] ]
[[package]]
name = "unic-char-property"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a8c57a407d9b6fa02b4795eb81c5b6652060a15a7903ea981f3d723e6c0be221"
dependencies = [
"unic-char-range",
]
[[package]]
name = "unic-char-range"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0398022d5f700414f6b899e10b8348231abf9173fa93144cbc1a43b9793c1fbc"
[[package]]
name = "unic-common"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "80d7ff825a6a654ee85a63e80f92f054f904f21e7d12da4e22f9834a4aaa35bc"
[[package]]
name = "unic-emoji-char"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0b07221e68897210270a38bde4babb655869637af0f69407f96053a34f76494d"
dependencies = [
"unic-char-property",
"unic-char-range",
"unic-ucd-version",
]
[[package]]
name = "unic-ucd-ident"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e230a37c0381caa9219d67cf063aa3a375ffed5bf541a452db16e744bdab6987"
dependencies = [
"unic-char-property",
"unic-char-range",
"unic-ucd-version",
]
[[package]]
name = "unic-ucd-version"
version = "0.9.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "96bd2f2237fe450fcd0a1d2f5f4e91711124f7857ba2e964247776ebeeb7b0c4"
dependencies = [
"unic-common",
]
[[package]] [[package]]
name = "unicase" name = "unicase"
version = "2.9.0" version = "2.9.0"
@@ -6224,28 +6014,6 @@ version = "0.2.6"
source = "registry+https://github.com/rust-lang/crates.io-index" source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853" checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
[[package]]
name = "unicode_names2"
version = "1.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d1673eca9782c84de5f81b82e4109dcfb3611c8ba0d52930ec4a9478f547b2dd"
dependencies = [
"phf",
"unicode_names2_generator",
]
[[package]]
name = "unicode_names2_generator"
version = "1.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b91e5b84611016120197efd7dc93ef76774f4e084cd73c9fb3ea4a86c570c56e"
dependencies = [
"getopts",
"log",
"phf_codegen",
"rand 0.8.5",
]
[[package]] [[package]]
name = "universal-hash" name = "universal-hash"
version = "0.5.1" version = "0.5.1"
+6 -4
View File
@@ -91,14 +91,16 @@ strum_macros = "0.27.2"
indoc = "2.0.6" indoc = "2.0.6"
rmcp = { version = "0.16.0", features = ["client", "transport-child-process"] } rmcp = { version = "0.16.0", features = ["client", "transport-child-process"] }
num_cpus = "1.17.0" num_cpus = "1.17.0"
rustpython-parser = "0.4.0" tree-sitter = "0.26.8"
rustpython-ast = "0.4.0" tree-sitter-language = "0.1"
tree-sitter-python = "0.25.0"
tree-sitter-typescript = "0.23"
colored = "3.0.0" colored = "3.0.0"
clap_complete = { version = "4.5.58", features = ["unstable-dynamic"] } clap_complete = { version = "4.5.58", features = ["unstable-dynamic"] }
gman = "0.3.0" gman = "0.4.1"
clap_complete_nushell = "4.5.9" clap_complete_nushell = "4.5.9"
open = "5" open = "5"
rand = "0.9.0" rand = { version = "0.10.0", features = ["default"] }
url = "2.5.8" url = "2.5.8"
[dependencies.reqwest] [dependencies.reqwest]
+1
View File
@@ -28,6 +28,7 @@ Coming from [AIChat](https://github.com/sigoden/aichat)? Follow the [migration g
* [Function Calling](./docs/function-calling/TOOLS.md#Tools): Leverage function calling capabilities to extend Loki's functionality with custom tools * [Function Calling](./docs/function-calling/TOOLS.md#Tools): Leverage function calling capabilities to extend Loki's functionality with custom tools
* [Creating Custom Tools](./docs/function-calling/CUSTOM-TOOLS.md): You can create your own custom tools to enhance Loki's capabilities. * [Creating Custom Tools](./docs/function-calling/CUSTOM-TOOLS.md): You can create your own custom tools to enhance Loki's capabilities.
* [Create Custom Python Tools](./docs/function-calling/CUSTOM-TOOLS.md#custom-python-based-tools) * [Create Custom Python Tools](./docs/function-calling/CUSTOM-TOOLS.md#custom-python-based-tools)
* [Create Custom TypeScript Tools](./docs/function-calling/CUSTOM-TOOLS.md#custom-typescript-based-tools)
* [Create Custom Bash Tools](./docs/function-calling/CUSTOM-BASH-TOOLS.md) * [Create Custom Bash Tools](./docs/function-calling/CUSTOM-BASH-TOOLS.md)
* [Bash Prompt Utilities](./docs/function-calling/BASH-PROMPT-HELPERS.md) * [Bash Prompt Utilities](./docs/function-calling/BASH-PROMPT-HELPERS.md)
* [First-Class MCP Server Support](./docs/function-calling/MCP-SERVERS.md): Easily connect and interact with MCP servers for advanced functionality. * [First-Class MCP Server Support](./docs/function-calling/MCP-SERVERS.md): Easily connect and interact with MCP servers for advanced functionality.
+189
View File
@@ -0,0 +1,189 @@
#!/usr/bin/env tsx
// Usage: ./{agent_name}.ts <agent-func> <agent-data>
import { readFileSync, writeFileSync, existsSync } from "fs";
import { join } from "path";
import { pathToFileURL } from "url";
async function main(): Promise<void> {
const { agentFunc, rawData } = parseArgv();
const agentData = parseRawData(rawData);
const configDir = "{config_dir}";
setupEnv(configDir, agentFunc);
const agentToolsPath = join(configDir, "agents", "{agent_name}", "tools.ts");
await run(agentToolsPath, agentFunc, agentData);
}
function parseRawData(data: string): Record<string, unknown> {
if (!data) {
throw new Error("No JSON data");
}
try {
return JSON.parse(data);
} catch {
throw new Error("Invalid JSON data");
}
}
function parseArgv(): { agentFunc: string; rawData: string } {
const agentFunc = process.argv[2];
const toolDataFile = process.env["LLM_TOOL_DATA_FILE"];
let agentData: string;
if (toolDataFile && existsSync(toolDataFile)) {
agentData = readFileSync(toolDataFile, "utf-8");
} else {
agentData = process.argv[3];
}
if (!agentFunc || !agentData) {
process.stderr.write("Usage: ./{agent_name}.ts <agent-func> <agent-data>\n");
process.exit(1);
}
return { agentFunc, rawData: agentData };
}
function setupEnv(configDir: string, agentFunc: string): void {
loadEnv(join(configDir, ".env"));
process.env["LLM_ROOT_DIR"] = configDir;
process.env["LLM_AGENT_NAME"] = "{agent_name}";
process.env["LLM_AGENT_FUNC"] = agentFunc;
process.env["LLM_AGENT_ROOT_DIR"] = join(configDir, "agents", "{agent_name}");
process.env["LLM_AGENT_CACHE_DIR"] = join(configDir, "cache", "{agent_name}");
}
function loadEnv(filePath: string): void {
let lines: string[];
try {
lines = readFileSync(filePath, "utf-8").split("\n");
} catch {
return;
}
for (const raw of lines) {
const line = raw.trim();
if (line.startsWith("#") || !line) {
continue;
}
const eqIdx = line.indexOf("=");
if (eqIdx === -1) {
continue;
}
const key = line.slice(0, eqIdx).trim();
if (key in process.env) {
continue;
}
let value = line.slice(eqIdx + 1).trim();
if (
(value.startsWith('"') && value.endsWith('"')) ||
(value.startsWith("'") && value.endsWith("'"))
) {
value = value.slice(1, -1);
}
process.env[key] = value;
}
}
function extractParamNames(fn: Function): string[] {
const src = fn.toString();
const match = src.match(/^(?:async\s+)?function\s*\w*\s*\(([^)]*)\)/);
if (!match) {
return [];
}
return match[1]
.split(",")
.map((p) => p.trim().replace(/[:=?].*/s, "").trim())
.filter(Boolean);
}
function spreadArgs(
fn: Function,
data: Record<string, unknown>,
): unknown[] {
const names = extractParamNames(fn);
if (names.length === 0) {
return [];
}
return names.map((name) => data[name]);
}
async function run(
agentPath: string,
agentFunc: string,
agentData: Record<string, unknown>,
): Promise<void> {
const mod = await import(pathToFileURL(agentPath).href);
if (typeof mod[agentFunc] !== "function") {
throw new Error(`No module function '${agentFunc}' at '${agentPath}'`);
}
const fn = mod[agentFunc] as Function;
const args = spreadArgs(fn, agentData);
const value = await fn(...args);
returnToLlm(value);
dumpResult(`{agent_name}:${agentFunc}`);
}
function returnToLlm(value: unknown): void {
if (value === null || value === undefined) {
return;
}
const output = process.env["LLM_OUTPUT"];
const write = (s: string) => {
if (output) {
writeFileSync(output, s, "utf-8");
} else {
process.stdout.write(s);
}
};
if (typeof value === "string" || typeof value === "number" || typeof value === "boolean") {
write(String(value));
} else if (typeof value === "object") {
write(JSON.stringify(value, null, 2));
}
}
function dumpResult(name: string): void {
const dumpResults = process.env["LLM_DUMP_RESULTS"];
const llmOutput = process.env["LLM_OUTPUT"];
if (!dumpResults || !llmOutput || !process.stdout.isTTY) {
return;
}
try {
const pattern = new RegExp(`\\b(${dumpResults})\\b`);
if (!pattern.test(name)) {
return;
}
} catch {
return;
}
let data: string;
try {
data = readFileSync(llmOutput, "utf-8");
} catch {
return;
}
process.stdout.write(
`\x1b[2m----------------------\n${data}\n----------------------\x1b[0m\n`,
);
}
main().catch((err) => {
process.stderr.write(`${err}\n`);
process.exit(1);
});
+184
View File
@@ -0,0 +1,184 @@
#!/usr/bin/env tsx
// Usage: ./{function_name}.ts <tool-data>
import { readFileSync, writeFileSync, existsSync } from "fs";
import { join } from "path";
import { pathToFileURL } from "url";
async function main(): Promise<void> {
const rawData = parseArgv();
const toolData = parseRawData(rawData);
const rootDir = "{root_dir}";
setupEnv(rootDir);
const toolPath = "{tool_path}.ts";
await run(toolPath, "run", toolData);
}
function parseRawData(data: string): Record<string, unknown> {
if (!data) {
throw new Error("No JSON data");
}
try {
return JSON.parse(data);
} catch {
throw new Error("Invalid JSON data");
}
}
function parseArgv(): string {
const toolDataFile = process.env["LLM_TOOL_DATA_FILE"];
if (toolDataFile && existsSync(toolDataFile)) {
return readFileSync(toolDataFile, "utf-8");
}
const toolData = process.argv[2];
if (!toolData) {
process.stderr.write("Usage: ./{function_name}.ts <tool-data>\n");
process.exit(1);
}
return toolData;
}
function setupEnv(rootDir: string): void {
loadEnv(join(rootDir, ".env"));
process.env["LLM_ROOT_DIR"] = rootDir;
process.env["LLM_TOOL_NAME"] = "{function_name}";
process.env["LLM_TOOL_CACHE_DIR"] = join(rootDir, "cache", "{function_name}");
}
function loadEnv(filePath: string): void {
let lines: string[];
try {
lines = readFileSync(filePath, "utf-8").split("\n");
} catch {
return;
}
for (const raw of lines) {
const line = raw.trim();
if (line.startsWith("#") || !line) {
continue;
}
const eqIdx = line.indexOf("=");
if (eqIdx === -1) {
continue;
}
const key = line.slice(0, eqIdx).trim();
if (key in process.env) {
continue;
}
let value = line.slice(eqIdx + 1).trim();
if (
(value.startsWith('"') && value.endsWith('"')) ||
(value.startsWith("'") && value.endsWith("'"))
) {
value = value.slice(1, -1);
}
process.env[key] = value;
}
}
function extractParamNames(fn: Function): string[] {
const src = fn.toString();
const match = src.match(/^(?:async\s+)?function\s*\w*\s*\(([^)]*)\)/);
if (!match) {
return [];
}
return match[1]
.split(",")
.map((p) => p.trim().replace(/[:=?].*/s, "").trim())
.filter(Boolean);
}
function spreadArgs(
fn: Function,
data: Record<string, unknown>,
): unknown[] {
const names = extractParamNames(fn);
if (names.length === 0) {
return [];
}
return names.map((name) => data[name]);
}
async function run(
toolPath: string,
toolFunc: string,
toolData: Record<string, unknown>,
): Promise<void> {
const mod = await import(pathToFileURL(toolPath).href);
if (typeof mod[toolFunc] !== "function") {
throw new Error(`No module function '${toolFunc}' at '${toolPath}'`);
}
const fn = mod[toolFunc] as Function;
const args = spreadArgs(fn, toolData);
const value = await fn(...args);
returnToLlm(value);
dumpResult("{function_name}");
}
function returnToLlm(value: unknown): void {
if (value === null || value === undefined) {
return;
}
const output = process.env["LLM_OUTPUT"];
const write = (s: string) => {
if (output) {
writeFileSync(output, s, "utf-8");
} else {
process.stdout.write(s);
}
};
if (typeof value === "string" || typeof value === "number" || typeof value === "boolean") {
write(String(value));
} else if (typeof value === "object") {
write(JSON.stringify(value, null, 2));
}
}
function dumpResult(name: string): void {
const dumpResults = process.env["LLM_DUMP_RESULTS"];
const llmOutput = process.env["LLM_OUTPUT"];
if (!dumpResults || !llmOutput || !process.stdout.isTTY) {
return;
}
try {
const pattern = new RegExp(`\\b(${dumpResults})\\b`);
if (!pattern.test(name)) {
return;
}
} catch {
return;
}
let data: string;
try {
data = readFileSync(llmOutput, "utf-8");
} catch {
return;
}
process.stdout.write(
`\x1b[2m----------------------\n${data}\n----------------------\x1b[0m\n`,
);
}
main().catch((err) => {
process.stderr.write(`${err}\n`);
process.exit(1);
});
+23 -10
View File
@@ -1,6 +1,7 @@
import os import os
from typing import List, Literal, Optional from typing import List, Literal, Optional
def run( def run(
string: str, string: str,
string_enum: Literal["foo", "bar"], string_enum: Literal["foo", "bar"],
@@ -9,26 +10,38 @@ def run(
number: float, number: float,
array: List[str], array: List[str],
string_optional: Optional[str] = None, string_optional: Optional[str] = None,
integer_with_default: int = 42,
boolean_with_default: bool = True,
number_with_default: float = 3.14,
string_with_default: str = "hello",
array_optional: Optional[List[str]] = None, array_optional: Optional[List[str]] = None,
): ):
"""Demonstrates how to create a tool using Python and how to use comments. """Demonstrates all supported Python parameter types and variations.
Args: Args:
string: Define a required string property string: A required string property
string_enum: Define a required string property with enum string_enum: A required string property constrained to specific values
boolean: Define a required boolean property boolean: A required boolean property
integer: Define a required integer property integer: A required integer property
number: Define a required number property number: A required number (float) property
array: Define a required string array property array: A required string array property
string_optional: Define an optional string property string_optional: An optional string property (Optional[str] with None default)
array_optional: Define an optional string array property integer_with_default: An optional integer with a non-None default value
boolean_with_default: An optional boolean with a default value
number_with_default: An optional number with a default value
string_with_default: An optional string with a default value
array_optional: An optional string array property
""" """
output = f"""string: {string} output = f"""string: {string}
string_enum: {string_enum} string_enum: {string_enum}
string_optional: {string_optional}
boolean: {boolean} boolean: {boolean}
integer: {integer} integer: {integer}
number: {number} number: {number}
array: {array} array: {array}
string_optional: {string_optional}
integer_with_default: {integer_with_default}
boolean_with_default: {boolean_with_default}
number_with_default: {number_with_default}
string_with_default: {string_with_default}
array_optional: {array_optional}""" array_optional: {array_optional}"""
for key, value in os.environ.items(): for key, value in os.environ.items():
+53
View File
@@ -0,0 +1,53 @@
/**
* Demonstrates all supported TypeScript parameter types and variations.
*
* @param string - A required string property
* @param string_enum - A required string property constrained to specific values
* @param boolean - A required boolean property
* @param number - A required number property
* @param array_bracket - A required string array using bracket syntax
* @param array_generic - A required string array using generic syntax
* @param string_optional - An optional string using the question mark syntax
* @param string_nullable - An optional string using the union-with-null syntax
* @param number_with_default - An optional number with a default value
* @param boolean_with_default - An optional boolean with a default value
* @param string_with_default - An optional string with a default value
* @param array_optional - An optional string array using the question mark syntax
*/
export function run(
string: string,
string_enum: "foo" | "bar",
boolean: boolean,
number: number,
array_bracket: string[],
array_generic: Array<string>,
string_optional?: string,
string_nullable: string | null = null,
number_with_default: number = 42,
boolean_with_default: boolean = true,
string_with_default: string = "hello",
array_optional?: string[],
): string {
const parts = [
`string: ${string}`,
`string_enum: ${string_enum}`,
`boolean: ${boolean}`,
`number: ${number}`,
`array_bracket: ${JSON.stringify(array_bracket)}`,
`array_generic: ${JSON.stringify(array_generic)}`,
`string_optional: ${string_optional}`,
`string_nullable: ${string_nullable}`,
`number_with_default: ${number_with_default}`,
`boolean_with_default: ${boolean_with_default}`,
`string_with_default: ${string_with_default}`,
`array_optional: ${JSON.stringify(array_optional)}`,
];
for (const [key, value] of Object.entries(process.env)) {
if (key.startsWith("LLM_")) {
parts.push(`${key}: ${value}`);
}
}
return parts.join("\n");
}
@@ -0,0 +1,24 @@
#!/usr/bin/env tsx
import { appendFileSync, mkdirSync } from "fs";
import { dirname } from "path";
/**
* Get the current weather in a given location
* @param location - The city and optionally the state or country (e.g., "London", "San Francisco, CA").
*/
export async function run(location: string): string {
const encoded = encodeURIComponent(location);
const url = `https://wttr.in/${encoded}?format=4`;
const resp = await fetch(url);
const data = await resp.text();
const dest = process.env["LLM_OUTPUT"] ?? "/dev/stdout";
if (dest !== "-" && dest !== "/dev/stdout") {
mkdirSync(dirname(dest), { recursive: true });
appendFileSync(dest, data, "utf-8");
}
return data;
}
+2
View File
@@ -46,6 +46,7 @@ enabled_tools: null # Which tools to enable by default. (e.g. 'fs,w
visible_tools: # Which tools are visible to be compiled (and are thus able to be defined in 'enabled_tools') visible_tools: # Which tools are visible to be compiled (and are thus able to be defined in 'enabled_tools')
# - demo_py.py # - demo_py.py
# - demo_sh.sh # - demo_sh.sh
# - demo_ts.ts
- execute_command.sh - execute_command.sh
# - execute_py_code.py # - execute_py_code.py
# - execute_sql_code.sh # - execute_sql_code.sh
@@ -61,6 +62,7 @@ visible_tools: # Which tools are visible to be compiled (and a
# - fs_write.sh # - fs_write.sh
- get_current_time.sh - get_current_time.sh
# - get_current_weather.py # - get_current_weather.py
# - get_current_weather.ts
- get_current_weather.sh - get_current_weather.sh
- query_jira_issues.sh - query_jira_issues.sh
# - search_arxiv.sh # - search_arxiv.sh
+62 -9
View File
@@ -33,6 +33,7 @@ If you're looking for more example agents, refer to the [built-in agents](../ass
- [.env File Support](#env-file-support) - [.env File Support](#env-file-support)
- [Python-Based Agent Tools](#python-based-agent-tools) - [Python-Based Agent Tools](#python-based-agent-tools)
- [Bash-Based Agent Tools](#bash-based-agent-tools) - [Bash-Based Agent Tools](#bash-based-agent-tools)
- [TypeScript-Based Agent Tools](#typescript-based-agent-tools)
- [5. Conversation Starters](#5-conversation-starters) - [5. Conversation Starters](#5-conversation-starters)
- [6. Todo System & Auto-Continuation](#6-todo-system--auto-continuation) - [6. Todo System & Auto-Continuation](#6-todo-system--auto-continuation)
- [7. Sub-Agent Spawning System](#7-sub-agent-spawning-system) - [7. Sub-Agent Spawning System](#7-sub-agent-spawning-system)
@@ -62,10 +63,12 @@ Agent configurations often have the following directory structure:
├── tools.sh ├── tools.sh
or or
├── tools.py ├── tools.py
or
├── tools.ts
``` ```
This means that agent configurations often are only two files: the agent configuration file (`config.yaml`), and the This means that agent configurations often are only two files: the agent configuration file (`config.yaml`), and the
tool definitions (`agents/my-agent/tools.sh` or `tools.py`). tool definitions (`agents/my-agent/tools.sh`, `tools.py`, or `tools.ts`).
To see a full example configuration file, refer to the [example agent config file](../config.agent.example.yaml). To see a full example configuration file, refer to the [example agent config file](../config.agent.example.yaml).
@@ -114,10 +117,10 @@ isolated environment, so in order for an agent to use a tool or MCP server that
explicitly state which tools and/or MCP servers the agent uses. Otherwise, it is assumed that the agent doesn't use any explicitly state which tools and/or MCP servers the agent uses. Otherwise, it is assumed that the agent doesn't use any
tools outside its own custom defined tools. tools outside its own custom defined tools.
And if you don't define a `agents/my-agent/tools.sh` or `agents/my-agent/tools.py`, then the agent is really just a And if you don't define a `agents/my-agent/tools.sh`, `agents/my-agent/tools.py`, or `agents/my-agent/tools.ts`, then the agent is really just a
`role`. `role`.
You'll notice there's no settings for agent-specific tooling. This is because they are handled separately and You'll notice there are no settings for agent-specific tooling. This is because they are handled separately and
automatically. See the [Building Tools for Agents](#4-building-tools-for-agents) section below for more information. automatically. See the [Building Tools for Agents](#4-building-tools-for-agents) section below for more information.
To see a full example configuration file, refer to the [example agent config file](../config.agent.example.yaml). To see a full example configuration file, refer to the [example agent config file](../config.agent.example.yaml).
@@ -205,7 +208,7 @@ variables:
### Dynamic Instructions ### Dynamic Instructions
Sometimes you may find it useful to dynamically generate instructions on startup. Whether that be via a call to Loki Sometimes you may find it useful to dynamically generate instructions on startup. Whether that be via a call to Loki
itself to generate them, or by some other means. Loki supports this type of behavior using a special function defined itself to generate them, or by some other means. Loki supports this type of behavior using a special function defined
in your `agents/my-agent/tools.py` or `agents/my-agent/tools.sh`. in your `agents/my-agent/tools.py`, `agents/my-agent/tools.sh`, or `agents/my-agent/tools.ts`.
**Example: Instructions for a JSON-reader agent that specializes on each JSON input it receives** **Example: Instructions for a JSON-reader agent that specializes on each JSON input it receives**
`agents/json-reader/tools.py`: `agents/json-reader/tools.py`:
@@ -306,8 +309,8 @@ EOF
} }
``` ```
For more information on how to create custom tools for your agent and the structure of the `agent/my-agent/tools.sh` or For more information on how to create custom tools for your agent and the structure of the `agent/my-agent/tools.sh`,
`agent/my-agent/tools.py` files, refer to the [Building Tools for Agents](#4-building-tools-for-agents) section below. `agent/my-agent/tools.py`, or `agent/my-agent/tools.ts` files, refer to the [Building Tools for Agents](#4-building-tools-for-agents) section below.
#### Variables #### Variables
All the same variable interpolations supported by static instructions is also supported by dynamic instructions. For All the same variable interpolations supported by static instructions is also supported by dynamic instructions. For
@@ -337,10 +340,11 @@ defining a single function that gets executed at runtime (e.g. `main` for bash t
tools define a number of *subcommands*. tools define a number of *subcommands*.
### Limitations ### Limitations
You can only utilize either a bash-based `<loki-config-dir>/agents/my-agent/tools.sh` or a Python-based You can only utilize one of: a bash-based `<loki-config-dir>/agents/my-agent/tools.sh`, a Python-based
`<loki-config-dir>/agents/my-agent/tools.py`. However, if it's easier to achieve a task in one language vs the other, `<loki-config-dir>/agents/my-agent/tools.py`, or a TypeScript-based `<loki-config-dir>/agents/my-agent/tools.ts`.
However, if it's easier to achieve a task in one language vs the other,
you're free to define other scripts in your agent's configuration directory and reference them from the main you're free to define other scripts in your agent's configuration directory and reference them from the main
`tools.py/sh` file. **Any scripts *not* named `tools.{py,sh}` will not be picked up by Loki's compiler**, meaning they tools file. **Any scripts *not* named `tools.{py,sh,ts}` will not be picked up by Loki's compiler**, meaning they
can be used like any other set of scripts. can be used like any other set of scripts.
It's important to keep in mind the following: It's important to keep in mind the following:
@@ -428,6 +432,55 @@ the same syntax ad formatting as is used to create custom bash tools globally.
For more information on how to write, [build and test](function-calling/CUSTOM-BASH-TOOLS.md#execute-and-test-your-bash-tools) tools in bash, refer to the For more information on how to write, [build and test](function-calling/CUSTOM-BASH-TOOLS.md#execute-and-test-your-bash-tools) tools in bash, refer to the
[custom bash tools documentation](function-calling/CUSTOM-BASH-TOOLS.md). [custom bash tools documentation](function-calling/CUSTOM-BASH-TOOLS.md).
### TypeScript-Based Agent Tools
TypeScript-based agent tools work exactly the same as TypeScript global tools. Instead of a single `run` function,
you define as many exported functions as you like. Non-exported functions are private helpers and are invisible to the
LLM.
**Example:**
`agents/my-agent/tools.ts`
```typescript
/**
* Get your IP information
*/
export async function get_ip_info(): Promise<string> {
const resp = await fetch("https://httpbin.org/ip");
return await resp.text();
}
/**
* Find your public IP address using AWS
*/
export async function get_ip_address_from_aws(): Promise<string> {
const resp = await fetch("https://checkip.amazonaws.com");
return await resp.text();
}
// Non-exported helper — invisible to the LLM
function formatResponse(data: string): string {
return data.trim();
}
```
Loki automatically compiles each exported function as a separate tool for the LLM to call. Just make sure you
follow the same JSDoc and parameter conventions as you would when creating custom TypeScript tools.
TypeScript agent tools also support dynamic instructions via an exported `_instructions()` function:
```typescript
import { readFileSync } from "fs";
/**
* Generates instructions for the agent dynamically
*/
export function _instructions(): string {
const schema = readFileSync("schema.json", "utf-8");
return `You are an AI agent that works with the following schema:\n${schema}`;
}
```
For more information on how to build tools in TypeScript, refer to the [custom TypeScript tools documentation](function-calling/CUSTOM-TOOLS.md#custom-typescript-based-tools).
## 5. Conversation Starters ## 5. Conversation Starters
It's often helpful to also have some conversation starters so users know what kinds of things the agent is capable of It's often helpful to also have some conversation starters so users know what kinds of things the agent is capable of
doing. These are available in the REPL via the `.starter` command and are selectable. doing. These are available in the REPL via the `.starter` command and are selectable.
+174 -11
View File
@@ -10,6 +10,8 @@ into your Loki setup. This document provides a guide on how to create and use cu
- [Environment Variables](#environment-variables) - [Environment Variables](#environment-variables)
- [Custom Bash-Based Tools](#custom-bash-based-tools) - [Custom Bash-Based Tools](#custom-bash-based-tools)
- [Custom Python-Based Tools](#custom-python-based-tools) - [Custom Python-Based Tools](#custom-python-based-tools)
- [Custom TypeScript-Based Tools](#custom-typescript-based-tools)
- [Custom Runtime](#custom-runtime)
<!--toc:end--> <!--toc:end-->
--- ---
@@ -19,9 +21,10 @@ Loki supports custom tools written in the following programming languages:
* Python * Python
* Bash * Bash
* TypeScript
## Creating a Custom Tool ## Creating a Custom Tool
All tools are created as scripts in either Python or Bash. They should be placed in the `functions/tools` directory. All tools are created as scripts in either Python, Bash, or TypeScript. They should be placed in the `functions/tools` directory.
The location of the `functions` directory varies between systems, so you can use the following command to locate The location of the `functions` directory varies between systems, so you can use the following command to locate
your `functions` directory: your `functions` directory:
@@ -81,6 +84,7 @@ Loki and demonstrates how to create a Python-based tool:
import os import os
from typing import List, Literal, Optional from typing import List, Literal, Optional
def run( def run(
string: str, string: str,
string_enum: Literal["foo", "bar"], string_enum: Literal["foo", "bar"],
@@ -89,26 +93,38 @@ def run(
number: float, number: float,
array: List[str], array: List[str],
string_optional: Optional[str] = None, string_optional: Optional[str] = None,
integer_with_default: int = 42,
boolean_with_default: bool = True,
number_with_default: float = 3.14,
string_with_default: str = "hello",
array_optional: Optional[List[str]] = None, array_optional: Optional[List[str]] = None,
): ):
"""Demonstrates how to create a tool using Python and how to use comments. """Demonstrates all supported Python parameter types and variations.
Args: Args:
string: Define a required string property string: A required string property
string_enum: Define a required string property with enum string_enum: A required string property constrained to specific values
boolean: Define a required boolean property boolean: A required boolean property
integer: Define a required integer property integer: A required integer property
number: Define a required number property number: A required number (float) property
array: Define a required string array property array: A required string array property
string_optional: Define an optional string property string_optional: An optional string property (Optional[str] with None default)
array_optional: Define an optional string array property integer_with_default: An optional integer with a non-None default value
boolean_with_default: An optional boolean with a default value
number_with_default: An optional number with a default value
string_with_default: An optional string with a default value
array_optional: An optional string array property
""" """
output = f"""string: {string} output = f"""string: {string}
string_enum: {string_enum} string_enum: {string_enum}
string_optional: {string_optional}
boolean: {boolean} boolean: {boolean}
integer: {integer} integer: {integer}
number: {number} number: {number}
array: {array} array: {array}
string_optional: {string_optional}
integer_with_default: {integer_with_default}
boolean_with_default: {boolean_with_default}
number_with_default: {number_with_default}
string_with_default: {string_with_default}
array_optional: {array_optional}""" array_optional: {array_optional}"""
for key, value in os.environ.items(): for key, value in os.environ.items():
@@ -117,3 +133,150 @@ array_optional: {array_optional}"""
return output return output
``` ```
### Custom TypeScript-Based Tools
Loki supports tools written in TypeScript. TypeScript tools require [Node.js](https://nodejs.org/) and
[tsx](https://tsx.is/) (`npx tsx` is used as the default runtime).
Each TypeScript-based tool must follow a specific structure in order for Loki to properly compile and execute it:
* The tool must be a TypeScript file with a `.ts` file extension.
* The tool must have an `export function run(...)` that serves as the entry point for the tool.
* Non-exported functions are ignored by the compiler and can be used as private helpers.
* The `run` function must accept flat parameters that define the inputs for the tool.
* Always use type annotations to specify the data type of each parameter.
* Use `param?: type` or `type | null` to indicate optional parameters.
* Use `param: type = value` for parameters with default values.
* The `run` function must return a `string` (or `Promise<string>` for async functions).
* For TypeScript, the return value is automatically written to the `LLM_OUTPUT` environment variable, so there's
no need to explicitly write to the environment variable within the function.
* The function must have a JSDoc comment that describes the tool and its parameters.
* Each parameter should be documented using `@param name - description` tags.
* These descriptions are passed to the LLM as the tool description, letting the LLM know what the tool does and
how to use it.
* Async functions (`export async function run(...)`) are fully supported and handled transparently.
**Supported Parameter Types:**
| TypeScript Type | JSON Schema | Notes |
|-------------------|--------------------------------------------------|-----------------------------|
| `string` | `{"type": "string"}` | Required string |
| `number` | `{"type": "number"}` | Required number |
| `boolean` | `{"type": "boolean"}` | Required boolean |
| `string[]` | `{"type": "array", "items": {"type": "string"}}` | Array (bracket syntax) |
| `Array<string>` | `{"type": "array", "items": {"type": "string"}}` | Array (generic syntax) |
| `"foo" \| "bar"` | `{"type": "string", "enum": ["foo", "bar"]}` | String enum (literal union) |
| `param?: string` | `{"type": "string"}` (not required) | Optional via question mark |
| `string \| null` | `{"type": "string"}` (not required) | Optional via null union |
| `param = "value"` | `{"type": "string"}` (not required) | Optional via default value |
**Unsupported Patterns (will produce a compile error):**
* Rest parameters (`...args: string[]`)
* Destructured object parameters (`{ a, b }: { a: string, b: string }`)
* Arrow functions (`const run = (x: string) => ...`)
* Function expressions (`const run = function(x: string) { ... }`)
Only `export function` declarations are recognized. Non-exported functions are invisible to the compiler.
Below is the [`demo_ts.ts`](../../assets/functions/tools/demo_ts.ts) tool definition that comes pre-packaged with
Loki and demonstrates how to create a TypeScript-based tool:
```typescript
/**
* Demonstrates all supported TypeScript parameter types and variations.
*
* @param string - A required string property
* @param string_enum - A required string property constrained to specific values
* @param boolean - A required boolean property
* @param number - A required number property
* @param array_bracket - A required string array using bracket syntax
* @param array_generic - A required string array using generic syntax
* @param string_optional - An optional string using the question mark syntax
* @param string_nullable - An optional string using the union-with-null syntax
* @param number_with_default - An optional number with a default value
* @param boolean_with_default - An optional boolean with a default value
* @param string_with_default - An optional string with a default value
* @param array_optional - An optional string array using the question mark syntax
*/
export function run(
string: string,
string_enum: "foo" | "bar",
boolean: boolean,
number: number,
array_bracket: string[],
array_generic: Array<string>,
string_optional?: string,
string_nullable: string | null = null,
number_with_default: number = 42,
boolean_with_default: boolean = true,
string_with_default: string = "hello",
array_optional?: string[],
): string {
const parts = [
`string: ${string}`,
`string_enum: ${string_enum}`,
`boolean: ${boolean}`,
`number: ${number}`,
`array_bracket: ${JSON.stringify(array_bracket)}`,
`array_generic: ${JSON.stringify(array_generic)}`,
`string_optional: ${string_optional}`,
`string_nullable: ${string_nullable}`,
`number_with_default: ${number_with_default}`,
`boolean_with_default: ${boolean_with_default}`,
`string_with_default: ${string_with_default}`,
`array_optional: ${JSON.stringify(array_optional)}`,
];
for (const [key, value] of Object.entries(process.env)) {
if (key.startsWith("LLM_")) {
parts.push(`${key}: ${value}`);
}
}
return parts.join("\n");
}
```
## Custom Runtime
By default, Loki uses the following runtimes to execute tools:
| Language | Default Runtime | Requirement |
|------------|-----------------|--------------------------------|
| Python | `python` | Python 3 on `$PATH` |
| TypeScript | `npx tsx` | Node.js + tsx (`npm i -g tsx`) |
| Bash | `bash` | Bash on `$PATH` |
You can override the runtime for Python and TypeScript tools using a **shebang line** (`#!`) at the top of your
script. Loki reads the first line of each tool file; if it starts with `#!`, the specified interpreter is used instead
of the default.
**Examples:**
```python
#!/usr/bin/env python3.11
# This Python tool will be executed with python3.11 instead of the default `python`
def run(name: str):
"""Greet someone.
Args:
name: The name to greet
"""
return f"Hello, {name}!"
```
```typescript
#!/usr/bin/env bun
// This TypeScript tool will be executed with Bun instead of the default `npx tsx`
/**
* Greet someone.
* @param name - The name to greet
*/
export function run(name: string): string {
return `Hello, ${name}!`;
}
```
This is useful for pinning a specific Python version, using an alternative TypeScript runtime like
[Bun](https://bun.sh/) or [Deno](https://deno.com/), or working with virtual environments.
+2
View File
@@ -32,6 +32,7 @@ be enabled/disabled can be found in the [Configuration](#configuration) section
|-------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------| |-------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------|
| [`demo_py.py`](../../assets/functions/tools/demo_py.py) | Demonstrates how to create a tool using Python and how to use comments. | 🔴 | | [`demo_py.py`](../../assets/functions/tools/demo_py.py) | Demonstrates how to create a tool using Python and how to use comments. | 🔴 |
| [`demo_sh.sh`](../../assets/functions/tools/demo_sh.sh) | Demonstrate how to create a tool using Bash and how to use comment tags. | 🔴 | | [`demo_sh.sh`](../../assets/functions/tools/demo_sh.sh) | Demonstrate how to create a tool using Bash and how to use comment tags. | 🔴 |
| [`demo_ts.ts`](../../assets/functions/tools/demo_ts.ts) | Demonstrates how to create a tool using TypeScript and how to use JSDoc comments. | 🔴 |
| [`execute_command.sh`](../../assets/functions/tools/execute_command.sh) | Execute the shell command. | 🟢 | | [`execute_command.sh`](../../assets/functions/tools/execute_command.sh) | Execute the shell command. | 🟢 |
| [`execute_py_code.py`](../../assets/functions/tools/execute_py_code.py) | Execute the given Python code. | 🔴 | | [`execute_py_code.py`](../../assets/functions/tools/execute_py_code.py) | Execute the given Python code. | 🔴 |
| [`execute_sql_code.sh`](../../assets/functions/tools/execute_sql_code.sh) | Execute SQL code. | 🔴 | | [`execute_sql_code.sh`](../../assets/functions/tools/execute_sql_code.sh) | Execute SQL code. | 🔴 |
@@ -49,6 +50,7 @@ be enabled/disabled can be found in the [Configuration](#configuration) section
| [`get_current_time.sh`](../../assets/functions/tools/get_current_time.sh) | Get the current time. | 🟢 | | [`get_current_time.sh`](../../assets/functions/tools/get_current_time.sh) | Get the current time. | 🟢 |
| [`get_current_weather.py`](../../assets/functions/tools/get_current_weather.py) | Get the current weather in a given location (Python implementation) | 🔴 | | [`get_current_weather.py`](../../assets/functions/tools/get_current_weather.py) | Get the current weather in a given location (Python implementation) | 🔴 |
| [`get_current_weather.sh`](../../assets/functions/tools/get_current_weather.sh) | Get the current weather in a given location. | 🟢 | | [`get_current_weather.sh`](../../assets/functions/tools/get_current_weather.sh) | Get the current weather in a given location. | 🟢 |
| [`get_current_weather.ts`](../../assets/functions/tools/get_current_weather.ts) | Get the current weather in a given location (TypeScript implementation) | 🔴 |
| [`query_jira_issues.sh`](../../assets/functions/tools/query_jira_issues.sh) | Query for jira issues using a Jira Query Language (JQL) query. | 🟢 | | [`query_jira_issues.sh`](../../assets/functions/tools/query_jira_issues.sh) | Query for jira issues using a Jira Query Language (JQL) query. | 🟢 |
| [`search_arxiv.sh`](../../assets/functions/tools/search_arxiv.sh) | Search arXiv using the given search query and return the top papers. | 🔴 | | [`search_arxiv.sh`](../../assets/functions/tools/search_arxiv.sh) | Search arXiv using the given search query and return the top papers. | 🔴 |
| [`search_wikipedia.sh`](../../assets/functions/tools/search_wikipedia.sh) | Search Wikipedia using the given search query. <br>Use it to get detailed information about a public figure, interpretation of a <br>complex scientific concept or in-depth connectivity of a significant historical <br>event, etc. | 🔴 | | [`search_wikipedia.sh`](../../assets/functions/tools/search_wikipedia.sh) | Search Wikipedia using the given search query. <br>Use it to get detailed information about a public figure, interpretation of a <br>complex scientific concept or in-depth connectivity of a significant historical <br>event, etc. | 🔴 |
+3 -4
View File
@@ -342,7 +342,7 @@ mod tests {
use bytes::Bytes; use bytes::Bytes;
use futures_util::stream; use futures_util::stream;
use rand::Rng; use rand::random_range;
use serde_json::json; use serde_json::json;
#[test] #[test]
@@ -392,10 +392,9 @@ mod tests {
} }
fn split_chunks(text: &str) -> Vec<Vec<u8>> { fn split_chunks(text: &str) -> Vec<Vec<u8>> {
let mut rng = rand::rng();
let len = text.len(); let len = text.len();
let cut1 = rng.random_range(1..len - 1); let cut1 = random_range(1..len - 1);
let cut2 = rng.random_range(cut1 + 1..len); let cut2 = random_range(cut1 + 1..len);
let chunk1 = text.as_bytes()[..cut1].to_vec(); let chunk1 = text.as_bytes()[..cut1].to_vec();
let chunk2 = text.as_bytes()[cut1..cut2].to_vec(); let chunk2 = text.as_bytes()[cut1..cut2].to_vec();
let chunk3 = text.as_bytes()[cut2..].to_vec(); let chunk3 = text.as_bytes()[cut2..].to_vec();
+1 -1
View File
@@ -584,7 +584,7 @@ impl Config {
} }
pub fn agent_functions_file(name: &str) -> Result<PathBuf> { pub fn agent_functions_file(name: &str) -> Result<PathBuf> {
let allowed = ["tools.sh", "tools.py", "tools.js"]; let allowed = ["tools.sh", "tools.py", "tools.ts", "tools.js"];
for entry in read_dir(Self::agent_data_dir(name))? { for entry in read_dir(Self::agent_data_dir(name))? {
let entry = entry?; let entry = entry?;
+117 -35
View File
@@ -12,7 +12,7 @@ use crate::mcp::{
MCP_DESCRIBE_META_FUNCTION_NAME_PREFIX, MCP_INVOKE_META_FUNCTION_NAME_PREFIX, MCP_DESCRIBE_META_FUNCTION_NAME_PREFIX, MCP_INVOKE_META_FUNCTION_NAME_PREFIX,
MCP_SEARCH_META_FUNCTION_NAME_PREFIX, MCP_SEARCH_META_FUNCTION_NAME_PREFIX,
}; };
use crate::parsers::{bash, python}; use crate::parsers::{bash, python, typescript};
use anyhow::{Context, Result, anyhow, bail}; use anyhow::{Context, Result, anyhow, bail};
use indexmap::IndexMap; use indexmap::IndexMap;
use indoc::formatdoc; use indoc::formatdoc;
@@ -53,6 +53,7 @@ enum BinaryType<'a> {
enum Language { enum Language {
Bash, Bash,
Python, Python,
TypeScript,
Unsupported, Unsupported,
} }
@@ -61,6 +62,7 @@ impl From<&String> for Language {
match s.to_lowercase().as_str() { match s.to_lowercase().as_str() {
"sh" => Language::Bash, "sh" => Language::Bash,
"py" => Language::Python, "py" => Language::Python,
"ts" => Language::TypeScript,
_ => Language::Unsupported, _ => Language::Unsupported,
} }
} }
@@ -72,6 +74,7 @@ impl Language {
match self { match self {
Language::Bash => "bash", Language::Bash => "bash",
Language::Python => "python", Language::Python => "python",
Language::TypeScript => "npx tsx",
Language::Unsupported => "sh", Language::Unsupported => "sh",
} }
} }
@@ -80,11 +83,32 @@ impl Language {
match self { match self {
Language::Bash => "sh", Language::Bash => "sh",
Language::Python => "py", Language::Python => "py",
Language::TypeScript => "ts",
_ => "sh", _ => "sh",
} }
} }
} }
fn extract_shebang_runtime(path: &Path) -> Option<String> {
let file = File::open(path).ok()?;
let reader = io::BufReader::new(file);
let first_line = io::BufRead::lines(reader).next()?.ok()?;
let shebang = first_line.strip_prefix("#!")?;
let cmd = shebang.trim();
if cmd.is_empty() {
return None;
}
if let Some(after_env) = cmd.strip_prefix("/usr/bin/env ") {
let runtime = after_env.trim();
if runtime.is_empty() {
return None;
}
Some(runtime.to_string())
} else {
Some(cmd.to_string())
}
}
pub async fn eval_tool_calls( pub async fn eval_tool_calls(
config: &GlobalConfig, config: &GlobalConfig,
mut calls: Vec<ToolCall>, mut calls: Vec<ToolCall>,
@@ -473,6 +497,11 @@ impl Functions {
file_name, file_name,
tools_file_path.parent(), tools_file_path.parent(),
), ),
Language::TypeScript => typescript::generate_typescript_declarations(
tool_file,
file_name,
tools_file_path.parent(),
),
Language::Unsupported => { Language::Unsupported => {
bail!("Unsupported tool file extension: {}", language.as_ref()) bail!("Unsupported tool file extension: {}", language.as_ref())
} }
@@ -513,7 +542,14 @@ impl Functions {
bail!("Unsupported tool file extension: {}", language.as_ref()); bail!("Unsupported tool file extension: {}", language.as_ref());
} }
Self::build_binaries(binary_name, language, BinaryType::Tool(agent_name))?; let tool_path = Config::global_tools_dir().join(tool);
let custom_runtime = extract_shebang_runtime(&tool_path);
Self::build_binaries(
binary_name,
language,
BinaryType::Tool(agent_name),
custom_runtime.as_deref(),
)?;
} }
Ok(()) Ok(())
@@ -554,8 +590,9 @@ impl Functions {
} }
fn build_agent_tool_binaries(name: &str) -> Result<()> { fn build_agent_tool_binaries(name: &str) -> Result<()> {
let tools_file = Config::agent_functions_file(name)?;
let language = Language::from( let language = Language::from(
&Config::agent_functions_file(name)? &tools_file
.extension() .extension()
.and_then(OsStr::to_str) .and_then(OsStr::to_str)
.map(|s| s.to_lowercase()) .map(|s| s.to_lowercase())
@@ -568,7 +605,8 @@ impl Functions {
bail!("Unsupported tool file extension: {}", language.as_ref()); bail!("Unsupported tool file extension: {}", language.as_ref());
} }
Self::build_binaries(name, language, BinaryType::Agent) let custom_runtime = extract_shebang_runtime(&tools_file);
Self::build_binaries(name, language, BinaryType::Agent, custom_runtime.as_deref())
} }
#[cfg(windows)] #[cfg(windows)]
@@ -576,6 +614,7 @@ impl Functions {
binary_name: &str, binary_name: &str,
language: Language, language: Language,
binary_type: BinaryType, binary_type: BinaryType,
custom_runtime: Option<&str>,
) -> Result<()> { ) -> Result<()> {
use native::runtime; use native::runtime;
let (binary_file, binary_script_file) = match binary_type { let (binary_file, binary_script_file) = match binary_type {
@@ -660,31 +699,42 @@ impl Functions {
binary_file.display() binary_file.display()
); );
let run = match language { let run = if let Some(rt) = custom_runtime {
Language::Bash => { rt.to_string()
let shell = runtime::bash_path().ok_or_else(|| anyhow!("Shell not found"))?; } else {
format!("{shell} --noprofile --norc") match language {
Language::Bash => {
let shell = runtime::bash_path().ok_or_else(|| anyhow!("Shell not found"))?;
format!("{shell} --noprofile --norc")
}
Language::Python if Path::new(".venv").exists() => {
let executable_path = env::current_dir()?
.join(".venv")
.join("Scripts")
.join("activate.bat");
let canonicalized_path = dunce::canonicalize(&executable_path)?;
format!(
"call \"{}\" && {}",
canonicalized_path.to_string_lossy(),
language.to_cmd()
)
}
Language::Python => {
let executable_path = which::which("python")
.or_else(|_| which::which("python3"))
.map_err(|_| anyhow!("Python executable not found in PATH"))?;
let canonicalized_path = dunce::canonicalize(&executable_path)?;
canonicalized_path.to_string_lossy().into_owned()
}
Language::TypeScript => {
let npx_path = which::which("npx").map_err(|_| {
anyhow!("npx executable not found in PATH (required for TypeScript tools)")
})?;
let canonicalized_path = dunce::canonicalize(&npx_path)?;
format!("{} tsx", canonicalized_path.to_string_lossy())
}
_ => bail!("Unsupported language: {}", language.as_ref()),
} }
Language::Python if Path::new(".venv").exists() => {
let executable_path = env::current_dir()?
.join(".venv")
.join("Scripts")
.join("activate.bat");
let canonicalized_path = dunce::canonicalize(&executable_path)?;
format!(
"call \"{}\" && {}",
canonicalized_path.to_string_lossy(),
language.to_cmd()
)
}
Language::Python => {
let executable_path = which::which("python")
.or_else(|_| which::which("python3"))
.map_err(|_| anyhow!("Python executable not found in PATH"))?;
let canonicalized_path = dunce::canonicalize(&executable_path)?;
canonicalized_path.to_string_lossy().into_owned()
}
_ => bail!("Unsupported language: {}", language.as_ref()),
}; };
let bin_dir = binary_file let bin_dir = binary_file
.parent() .parent()
@@ -714,6 +764,7 @@ impl Functions {
binary_name: &str, binary_name: &str,
language: Language, language: Language,
binary_type: BinaryType, binary_type: BinaryType,
custom_runtime: Option<&str>,
) -> Result<()> { ) -> Result<()> {
use std::os::unix::prelude::PermissionsExt; use std::os::unix::prelude::PermissionsExt;
@@ -742,7 +793,7 @@ impl Functions {
) )
})?; })?;
let content_template = unsafe { std::str::from_utf8_unchecked(&embedded_file.data) }; let content_template = unsafe { std::str::from_utf8_unchecked(&embedded_file.data) };
let content = match binary_type { let mut content = match binary_type {
BinaryType::Tool(None) => { BinaryType::Tool(None) => {
let root_dir = Config::functions_dir(); let root_dir = Config::functions_dir();
let tool_path = format!( let tool_path = format!(
@@ -773,13 +824,44 @@ impl Functions {
"{prompt_utils_file}", "{prompt_utils_file}",
&Config::bash_prompt_utils_file().to_string_lossy(), &Config::bash_prompt_utils_file().to_string_lossy(),
); );
if binary_file.exists() {
fs::remove_file(&binary_file)?;
}
let mut file = File::create(&binary_file)?;
file.write_all(content.as_bytes())?;
fs::set_permissions(&binary_file, fs::Permissions::from_mode(0o755))?; if let Some(rt) = custom_runtime
&& let Some(newline_pos) = content.find('\n')
{
content = format!("#!/usr/bin/env {rt}{}", &content[newline_pos..]);
}
if language == Language::TypeScript {
let bin_dir = binary_file
.parent()
.expect("Failed to get parent directory of binary file");
let script_file = bin_dir.join(format!("run-{binary_name}.ts"));
if script_file.exists() {
fs::remove_file(&script_file)?;
}
let mut sf = File::create(&script_file)?;
sf.write_all(content.as_bytes())?;
fs::set_permissions(&script_file, fs::Permissions::from_mode(0o755))?;
let ts_runtime = custom_runtime.unwrap_or("tsx");
let wrapper = format!(
"#!/bin/sh\nexec {ts_runtime} \"{}\" \"$@\"\n",
script_file.display()
);
if binary_file.exists() {
fs::remove_file(&binary_file)?;
}
let mut wf = File::create(&binary_file)?;
wf.write_all(wrapper.as_bytes())?;
fs::set_permissions(&binary_file, fs::Permissions::from_mode(0o755))?;
} else {
if binary_file.exists() {
fs::remove_file(&binary_file)?;
}
let mut file = File::create(&binary_file)?;
file.write_all(content.as_bytes())?;
fs::set_permissions(&binary_file, fs::Permissions::from_mode(0o755))?;
}
Ok(()) Ok(())
} }
+236
View File
@@ -0,0 +1,236 @@
use crate::function::{FunctionDeclaration, JsonSchema};
use anyhow::{Context, Result, anyhow, bail};
use indexmap::IndexMap;
use serde_json::Value;
use tree_sitter::Node;
#[derive(Debug)]
pub(crate) struct Param {
pub name: String,
pub ty_hint: String,
pub required: bool,
pub default: Option<Value>,
pub doc_type: Option<String>,
pub doc_desc: Option<String>,
}
pub(crate) trait ScriptedLanguage {
fn ts_language(&self) -> tree_sitter::Language;
fn lang_name(&self) -> &str;
fn find_functions<'a>(&self, root: Node<'a>, src: &str) -> Vec<(Node<'a>, Node<'a>)>;
fn function_name<'a>(&self, func_node: Node<'a>, src: &'a str) -> Result<&'a str>;
fn extract_description(
&self,
wrapper_node: Node<'_>,
func_node: Node<'_>,
src: &str,
) -> Option<String>;
fn extract_params(
&self,
func_node: Node<'_>,
src: &str,
description: &str,
) -> Result<Vec<Param>>;
}
pub(crate) fn build_param(
name: &str,
mut ty: String,
mut required: bool,
default: Option<Value>,
) -> Param {
if ty.ends_with('?') {
ty.pop();
required = false;
}
Param {
name: name.to_string(),
ty_hint: ty,
required,
default,
doc_type: None,
doc_desc: None,
}
}
pub(crate) fn build_parameters_schema(params: &[Param], _description: &str) -> JsonSchema {
let mut props: IndexMap<String, JsonSchema> = IndexMap::new();
let mut req: Vec<String> = Vec::new();
for p in params {
let name = p.name.replace('-', "_");
let mut schema = JsonSchema::default();
let ty = if !p.ty_hint.is_empty() {
p.ty_hint.as_str()
} else if let Some(t) = &p.doc_type {
t.as_str()
} else {
"str"
};
if let Some(d) = &p.doc_desc
&& !d.is_empty()
{
schema.description = Some(d.clone());
}
apply_type_to_schema(ty, &mut schema);
if p.default.is_none() && p.required {
req.push(name.clone());
}
props.insert(name, schema);
}
JsonSchema {
type_value: Some("object".into()),
description: None,
properties: Some(props),
items: None,
any_of: None,
enum_value: None,
default: None,
required: if req.is_empty() { None } else { Some(req) },
}
}
pub(crate) fn apply_type_to_schema(ty: &str, s: &mut JsonSchema) {
let t = ty.trim_end_matches('?');
if let Some(rest) = t.strip_prefix("list[") {
s.type_value = Some("array".into());
let inner = rest.trim_end_matches(']');
let mut item = JsonSchema::default();
apply_type_to_schema(inner, &mut item);
if item.type_value.is_none() {
item.type_value = Some("string".into());
}
s.items = Some(Box::new(item));
return;
}
if let Some(rest) = t.strip_prefix("literal:") {
s.type_value = Some("string".into());
let vals = rest
.split('|')
.map(|x| x.trim().trim_matches('"').trim_matches('\'').to_string())
.collect::<Vec<_>>();
if !vals.is_empty() {
s.enum_value = Some(vals);
}
return;
}
s.type_value = Some(
match t {
"bool" => "boolean",
"int" => "integer",
"float" => "number",
"str" | "any" | "" => "string",
_ => "string",
}
.into(),
);
}
pub(crate) fn underscore(s: &str) -> String {
s.chars()
.map(|c| {
if c.is_ascii_alphanumeric() {
c.to_ascii_lowercase()
} else {
'_'
}
})
.collect::<String>()
.split('_')
.filter(|t| !t.is_empty())
.collect::<Vec<_>>()
.join("_")
}
pub(crate) fn node_text<'a>(node: Node<'_>, src: &'a str) -> Result<&'a str> {
node.utf8_text(src.as_bytes())
.map_err(|err| anyhow!("invalid utf-8 in source: {err}"))
}
pub(crate) fn named_child(node: Node<'_>, index: usize) -> Option<Node<'_>> {
let mut cursor = node.walk();
node.named_children(&mut cursor).nth(index)
}
pub(crate) fn generate_declarations<L: ScriptedLanguage>(
lang: &L,
src: &str,
file_name: &str,
is_tool: bool,
) -> Result<Vec<FunctionDeclaration>> {
let mut parser = tree_sitter::Parser::new();
let language = lang.ts_language();
parser.set_language(&language).with_context(|| {
format!(
"failed to initialize {} tree-sitter parser",
lang.lang_name()
)
})?;
let tree = parser
.parse(src.as_bytes(), None)
.ok_or_else(|| anyhow!("failed to parse {}: {file_name}", lang.lang_name()))?;
if tree.root_node().has_error() {
bail!(
"failed to parse {}: syntax error in {file_name}",
lang.lang_name()
);
}
let mut out = Vec::new();
for (wrapper, func) in lang.find_functions(tree.root_node(), src) {
let func_name = lang.function_name(func, src)?;
if func_name.starts_with('_') && func_name != "_instructions" {
continue;
}
if is_tool && func_name != "run" {
continue;
}
let description = lang
.extract_description(wrapper, func, src)
.unwrap_or_default();
let params = lang
.extract_params(func, src, &description)
.with_context(|| format!("in function '{func_name}' in {file_name}"))?;
let schema = build_parameters_schema(&params, &description);
let name = if is_tool && func_name == "run" {
underscore(file_name)
} else {
underscore(func_name)
};
let desc_trim = description.trim().to_string();
if desc_trim.is_empty() {
bail!("Missing or empty description on function: {func_name}");
}
out.push(FunctionDeclaration {
name,
description: desc_trim,
parameters: schema,
agent: !is_tool,
});
}
Ok(out)
}
+2
View File
@@ -1,2 +1,4 @@
pub(crate) mod bash; pub(crate) mod bash;
pub(crate) mod common;
pub(crate) mod python; pub(crate) mod python;
pub(crate) mod typescript;
+680 -334
View File
File diff suppressed because it is too large Load Diff
+789
View File
@@ -0,0 +1,789 @@
use crate::function::FunctionDeclaration;
use crate::parsers::common::{self, Param, ScriptedLanguage};
use anyhow::{Context, Result, anyhow, bail};
use indexmap::IndexMap;
use serde_json::Value;
use std::fs::File;
use std::io::Read;
use std::path::Path;
use tree_sitter::Node;
pub(crate) struct TypeScriptLanguage;
impl ScriptedLanguage for TypeScriptLanguage {
fn ts_language(&self) -> tree_sitter::Language {
tree_sitter_typescript::LANGUAGE_TYPESCRIPT.into()
}
fn lang_name(&self) -> &str {
"typescript"
}
fn find_functions<'a>(&self, root: Node<'a>, _src: &str) -> Vec<(Node<'a>, Node<'a>)> {
let mut cursor = root.walk();
root.named_children(&mut cursor)
.filter_map(|stmt| match stmt.kind() {
"export_statement" => unwrap_exported_function(stmt).map(|fd| (stmt, fd)),
_ => None,
})
.collect()
}
fn function_name<'a>(&self, func_node: Node<'a>, src: &'a str) -> Result<&'a str> {
let name_node = func_node
.child_by_field_name("name")
.ok_or_else(|| anyhow!("function_declaration missing name"))?;
common::node_text(name_node, src)
}
fn extract_description(
&self,
wrapper_node: Node<'_>,
func_node: Node<'_>,
src: &str,
) -> Option<String> {
let text = jsdoc_text(wrapper_node, func_node, src)?;
let lines = clean_jsdoc_lines(text);
let mut description = Vec::new();
for line in lines {
if line.starts_with('@') {
break;
}
description.push(line);
}
let description = description.join("\n").trim().to_string();
(!description.is_empty()).then_some(description)
}
fn extract_params(
&self,
func_node: Node<'_>,
src: &str,
_description: &str,
) -> Result<Vec<Param>> {
let parameters = func_node
.child_by_field_name("parameters")
.ok_or_else(|| anyhow!("function_declaration missing parameters"))?;
let mut out = Vec::new();
let mut cursor = parameters.walk();
for param in parameters.named_children(&mut cursor) {
match param.kind() {
"required_parameter" | "optional_parameter" => {
let name = parameter_name(param, src)?;
let ty = get_arg_type(param.child_by_field_name("type"), src)?;
let required = param.kind() == "required_parameter"
&& param.child_by_field_name("value").is_none();
let default = param.child_by_field_name("value").map(|_| Value::Null);
out.push(common::build_param(name, ty, required, default));
}
"rest_parameter" => {
let line = param.start_position().row + 1;
bail!("line {line}: rest parameters (...) are not supported in tool functions")
}
"object_pattern" => {
let line = param.start_position().row + 1;
bail!(
"line {line}: destructured object parameters (e.g. '{{ a, b }}: {{ a: string }}') \
are not supported in tool functions. Use flat parameters instead (e.g. 'a: string, b: string')."
)
}
other => {
let line = param.start_position().row + 1;
bail!("line {line}: unsupported parameter type: {other}")
}
}
}
let wrapper = match func_node.parent() {
Some(parent) if parent.kind() == "export_statement" => parent,
_ => func_node,
};
if let Some(doc) = jsdoc_text(wrapper, func_node, src) {
let meta = parse_jsdoc_params(doc);
for p in &mut out {
if let Some(desc) = meta.get(&p.name)
&& !desc.is_empty()
{
p.doc_desc = Some(desc.clone());
}
}
}
Ok(out)
}
}
pub fn generate_typescript_declarations(
mut tool_file: File,
file_name: &str,
parent: Option<&Path>,
) -> Result<Vec<FunctionDeclaration>> {
let mut src = String::new();
tool_file
.read_to_string(&mut src)
.with_context(|| format!("Failed to load script at '{tool_file:?}'"))?;
let is_tool = parent
.and_then(|p| p.file_name())
.is_some_and(|n| n == "tools");
common::generate_declarations(&TypeScriptLanguage, &src, file_name, is_tool)
}
fn unwrap_exported_function(node: Node<'_>) -> Option<Node<'_>> {
node.child_by_field_name("declaration")
.filter(|child| child.kind() == "function_declaration")
.or_else(|| {
let mut cursor = node.walk();
node.named_children(&mut cursor)
.find(|child| child.kind() == "function_declaration")
})
}
fn jsdoc_text<'a>(wrapper_node: Node<'_>, func_node: Node<'_>, src: &'a str) -> Option<&'a str> {
wrapper_node
.prev_named_sibling()
.or_else(|| func_node.prev_named_sibling())
.filter(|node| node.kind() == "comment")
.and_then(|node| common::node_text(node, src).ok())
.filter(|text| text.trim_start().starts_with("/**"))
}
fn clean_jsdoc_lines(doc: &str) -> Vec<String> {
let trimmed = doc.trim();
let inner = trimmed
.strip_prefix("/**")
.unwrap_or(trimmed)
.strip_suffix("*/")
.unwrap_or(trimmed);
inner
.lines()
.map(|line| {
let line = line.trim();
let line = line.strip_prefix('*').unwrap_or(line).trim_start();
line.to_string()
})
.collect()
}
fn parse_jsdoc_params(doc: &str) -> IndexMap<String, String> {
let mut out = IndexMap::new();
for line in clean_jsdoc_lines(doc) {
let Some(rest) = line.strip_prefix("@param") else {
continue;
};
let mut rest = rest.trim();
if rest.starts_with('{')
&& let Some(end) = rest.find('}')
{
rest = rest[end + 1..].trim_start();
}
if rest.is_empty() {
continue;
}
let name_end = rest.find(char::is_whitespace).unwrap_or(rest.len());
let mut name = rest[..name_end].trim();
if let Some(stripped) = name.strip_suffix('?') {
name = stripped;
}
if name.is_empty() {
continue;
}
let mut desc = rest[name_end..].trim();
if let Some(stripped) = desc.strip_prefix('-') {
desc = stripped.trim_start();
}
out.insert(name.to_string(), desc.to_string());
}
out
}
fn parameter_name<'a>(node: Node<'_>, src: &'a str) -> Result<&'a str> {
if let Some(name) = node.child_by_field_name("name") {
return match name.kind() {
"identifier" => common::node_text(name, src),
"rest_pattern" => {
let line = node.start_position().row + 1;
bail!("line {line}: rest parameters (...) are not supported in tool functions")
}
"object_pattern" | "array_pattern" => {
let line = node.start_position().row + 1;
bail!(
"line {line}: destructured parameters are not supported in tool functions. \
Use flat parameters instead (e.g. 'a: string, b: string')."
)
}
other => {
let line = node.start_position().row + 1;
bail!("line {line}: unsupported parameter type: {other}")
}
};
}
let pattern = node
.child_by_field_name("pattern")
.ok_or_else(|| anyhow!("parameter missing pattern"))?;
match pattern.kind() {
"identifier" => common::node_text(pattern, src),
"rest_pattern" => {
let line = node.start_position().row + 1;
bail!("line {line}: rest parameters (...) are not supported in tool functions")
}
"object_pattern" | "array_pattern" => {
let line = node.start_position().row + 1;
bail!(
"line {line}: destructured parameters are not supported in tool functions. \
Use flat parameters instead (e.g. 'a: string, b: string')."
)
}
other => {
let line = node.start_position().row + 1;
bail!("line {line}: unsupported parameter type: {other}")
}
}
}
fn get_arg_type(annotation: Option<Node<'_>>, src: &str) -> Result<String> {
let Some(annotation) = annotation else {
return Ok(String::new());
};
match annotation.kind() {
"type_annotation" | "type" => get_arg_type(common::named_child(annotation, 0), src),
"predefined_type" => Ok(match common::node_text(annotation, src)? {
"string" => "str",
"number" => "float",
"boolean" => "bool",
"any" | "unknown" | "void" | "undefined" => "any",
_ => "any",
}
.to_string()),
"type_identifier" | "nested_type_identifier" => Ok("any".to_string()),
"generic_type" => {
let name = annotation
.child_by_field_name("name")
.ok_or_else(|| anyhow!("generic_type missing name"))?;
let type_name = common::node_text(name, src)?;
let type_args = annotation
.child_by_field_name("type_arguments")
.ok_or_else(|| anyhow!("generic_type missing type arguments"))?;
let inner = common::named_child(type_args, 0)
.ok_or_else(|| anyhow!("generic_type missing inner type"))?;
match type_name {
"Array" => Ok(format!("list[{}]", get_arg_type(Some(inner), src)?)),
_ => Ok("any".to_string()),
}
}
"array_type" => {
let inner = common::named_child(annotation, 0)
.ok_or_else(|| anyhow!("array_type missing inner type"))?;
Ok(format!("list[{}]", get_arg_type(Some(inner), src)?))
}
"union_type" => resolve_union_type(annotation, src),
"literal_type" => resolve_literal_type(annotation, src),
"parenthesized_type" => get_arg_type(common::named_child(annotation, 0), src),
_ => Ok("any".to_string()),
}
}
fn resolve_union_type(annotation: Node<'_>, src: &str) -> Result<String> {
let members = flatten_union_members(annotation);
let has_null = members.iter().any(|member| is_nullish_type(*member, src));
let mut literal_values = Vec::new();
let mut all_string_literals = true;
for member in &members {
match string_literal_member(*member, src) {
Some(value) => literal_values.push(value),
None => {
all_string_literals = false;
break;
}
}
}
if all_string_literals && !literal_values.is_empty() {
return Ok(format!("literal:{}", literal_values.join("|")));
}
let mut first_non_null = None;
for member in members {
if is_nullish_type(member, src) {
continue;
}
first_non_null = Some(get_arg_type(Some(member), src)?);
break;
}
let mut ty = first_non_null.unwrap_or_else(|| "any".to_string());
if has_null && !ty.ends_with('?') {
ty.push('?');
}
Ok(ty)
}
fn flatten_union_members(node: Node<'_>) -> Vec<Node<'_>> {
let node = if node.kind() == "type" {
match common::named_child(node, 0) {
Some(inner) => inner,
None => return vec![],
}
} else {
node
};
if node.kind() != "union_type" {
return vec![node];
}
let mut cursor = node.walk();
let mut out = Vec::new();
for child in node.named_children(&mut cursor) {
out.extend(flatten_union_members(child));
}
out
}
fn resolve_literal_type(annotation: Node<'_>, src: &str) -> Result<String> {
let inner = common::named_child(annotation, 0)
.ok_or_else(|| anyhow!("literal_type missing inner literal"))?;
match inner.kind() {
"string" | "number" | "true" | "false" | "unary_expression" => {
Ok(format!("literal:{}", common::node_text(inner, src)?.trim()))
}
"null" | "undefined" => Ok("any".to_string()),
_ => Ok("any".to_string()),
}
}
fn string_literal_member(node: Node<'_>, src: &str) -> Option<String> {
let node = if node.kind() == "type" {
common::named_child(node, 0)?
} else {
node
};
if node.kind() != "literal_type" {
return None;
}
let inner = common::named_child(node, 0)?;
if inner.kind() != "string" {
return None;
}
Some(common::node_text(inner, src).ok()?.to_string())
}
fn is_nullish_type(node: Node<'_>, src: &str) -> bool {
let node = if node.kind() == "type" {
match common::named_child(node, 0) {
Some(inner) => inner,
None => return false,
}
} else {
node
};
match node.kind() {
"literal_type" => common::named_child(node, 0)
.is_some_and(|inner| matches!(inner.kind(), "null" | "undefined")),
"predefined_type" => common::node_text(node, src)
.map(|text| matches!(text, "undefined" | "void"))
.unwrap_or(false),
_ => false,
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::function::JsonSchema;
use std::fs;
use std::time::{SystemTime, UNIX_EPOCH};
fn parse_ts_source(
source: &str,
file_name: &str,
parent: &Path,
) -> Result<Vec<FunctionDeclaration>> {
let unique = SystemTime::now()
.duration_since(UNIX_EPOCH)
.expect("time")
.as_nanos();
let path = std::env::temp_dir().join(format!("loki_ts_parser_{file_name}_{unique}.ts"));
fs::write(&path, source).expect("write");
let file = File::open(&path).expect("open");
let result = generate_typescript_declarations(file, file_name, Some(parent));
let _ = fs::remove_file(&path);
result
}
fn properties(schema: &JsonSchema) -> &IndexMap<String, JsonSchema> {
schema
.properties
.as_ref()
.expect("missing schema properties")
}
fn property<'a>(schema: &'a JsonSchema, name: &str) -> &'a JsonSchema {
properties(schema)
.get(name)
.unwrap_or_else(|| panic!("missing property: {name}"))
}
#[test]
fn test_ts_tool_demo() {
let source = r#"
/**
* Demonstrates how to create a tool using TypeScript.
*
* @param query - The search query string
* @param format - Output format
* @param count - Maximum results to return
* @param verbose - Enable verbose output
* @param tags - List of tags to filter by
* @param language - Optional language filter
* @param extra_tags - Optional extra tags
*/
export function run(
query: string,
format: "json" | "csv" | "xml",
count: number,
verbose: boolean,
tags: string[],
language?: string,
extra_tags?: Array<string>,
): string {
return "result";
}
"#;
let declarations = parse_ts_source(source, "demo_ts", Path::new("tools")).unwrap();
assert_eq!(declarations.len(), 1);
let decl = &declarations[0];
assert_eq!(decl.name, "demo_ts");
assert!(!decl.agent);
let params = &decl.parameters;
assert_eq!(params.type_value.as_deref(), Some("object"));
assert_eq!(
params.required.as_ref().unwrap(),
&vec![
"query".to_string(),
"format".to_string(),
"count".to_string(),
"verbose".to_string(),
"tags".to_string(),
]
);
assert_eq!(
property(params, "query").type_value.as_deref(),
Some("string")
);
let format = property(params, "format");
assert_eq!(format.type_value.as_deref(), Some("string"));
assert_eq!(
format.enum_value.as_ref().unwrap(),
&vec!["json".to_string(), "csv".to_string(), "xml".to_string()]
);
assert_eq!(
property(params, "count").type_value.as_deref(),
Some("number")
);
assert_eq!(
property(params, "verbose").type_value.as_deref(),
Some("boolean")
);
let tags = property(params, "tags");
assert_eq!(tags.type_value.as_deref(), Some("array"));
assert_eq!(
tags.items.as_ref().unwrap().type_value.as_deref(),
Some("string")
);
let language = property(params, "language");
assert_eq!(language.type_value.as_deref(), Some("string"));
assert!(
!params
.required
.as_ref()
.unwrap()
.contains(&"language".to_string())
);
let extra_tags = property(params, "extra_tags");
assert_eq!(extra_tags.type_value.as_deref(), Some("array"));
assert_eq!(
extra_tags.items.as_ref().unwrap().type_value.as_deref(),
Some("string")
);
assert!(
!params
.required
.as_ref()
.unwrap()
.contains(&"extra_tags".to_string())
);
}
#[test]
fn test_ts_tool_simple() {
let source = r#"
/**
* Execute the given code.
*
* @param code - The code to execute
*/
export function run(code: string): string {
return eval(code);
}
"#;
let declarations = parse_ts_source(source, "execute_code", Path::new("tools")).unwrap();
assert_eq!(declarations.len(), 1);
let decl = &declarations[0];
assert_eq!(decl.name, "execute_code");
assert!(!decl.agent);
let params = &decl.parameters;
assert_eq!(params.required.as_ref().unwrap(), &vec!["code".to_string()]);
assert_eq!(
property(params, "code").type_value.as_deref(),
Some("string")
);
}
#[test]
fn test_ts_agent_tools() {
let source = r#"
/** Get user info by ID */
export function get_user(id: string): string {
return "";
}
/** List all users */
export function list_users(): string {
return "";
}
"#;
let declarations = parse_ts_source(source, "tools", Path::new("demo")).unwrap();
assert_eq!(declarations.len(), 2);
assert_eq!(declarations[0].name, "get_user");
assert_eq!(declarations[1].name, "list_users");
assert!(declarations[0].agent);
assert!(declarations[1].agent);
}
#[test]
fn test_ts_reject_rest_params() {
let source = r#"
/**
* Has rest params
*/
export function run(...args: string[]): string {
return "";
}
"#;
let err = parse_ts_source(source, "rest_params", Path::new("tools")).unwrap_err();
let msg = format!("{err:#}");
assert!(msg.contains("rest parameters"));
assert!(msg.contains("in function 'run'"));
}
#[test]
fn test_ts_missing_jsdoc() {
let source = r#"
export function run(x: string): string {
return x;
}
"#;
let err = parse_ts_source(source, "missing_jsdoc", Path::new("tools")).unwrap_err();
assert!(
err.to_string()
.contains("Missing or empty description on function: run")
);
}
#[test]
fn test_ts_syntax_error() {
let source = "export function run(: broken";
let err = parse_ts_source(source, "syntax_error", Path::new("tools")).unwrap_err();
assert!(err.to_string().contains("failed to parse typescript"));
}
#[test]
fn test_ts_underscore_skipped() {
let source = r#"
/** Private helper */
function _helper(): void {}
/** Public function */
export function do_stuff(): string {
return "";
}
"#;
let declarations = parse_ts_source(source, "tools", Path::new("demo")).unwrap();
assert_eq!(declarations.len(), 1);
assert_eq!(declarations[0].name, "do_stuff");
assert!(declarations[0].agent);
}
#[test]
fn test_ts_non_exported_helpers_skipped() {
let source = r#"
#!/usr/bin/env tsx
import { appendFileSync } from 'fs';
/**
* Get the current weather in a given location
* @param location - The city
*/
export function get_current_weather(location: string): string {
return fetchSync("https://example.com/" + location);
}
function fetchSync(url: string): string {
return "sunny";
}
"#;
let declarations = parse_ts_source(source, "tools", Path::new("demo")).unwrap();
assert_eq!(declarations.len(), 1);
assert_eq!(declarations[0].name, "get_current_weather");
}
#[test]
fn test_ts_instructions_not_skipped() {
let source = r#"
/** Help text for the agent */
export function _instructions(): string {
return "";
}
"#;
let declarations = parse_ts_source(source, "tools", Path::new("demo")).unwrap();
assert_eq!(declarations.len(), 1);
assert_eq!(declarations[0].name, "instructions");
assert!(declarations[0].agent);
}
#[test]
fn test_ts_optional_with_null_union() {
let source = r#"
/**
* Fetch data with optional filter
*
* @param url - The URL to fetch
* @param filter - Optional filter string
*/
export function run(url: string, filter: string | null): string {
return "";
}
"#;
let declarations = parse_ts_source(source, "fetch_data", Path::new("tools")).unwrap();
let params = &declarations[0].parameters;
assert!(
params
.required
.as_ref()
.unwrap()
.contains(&"url".to_string())
);
assert!(
!params
.required
.as_ref()
.unwrap()
.contains(&"filter".to_string())
);
assert_eq!(
property(params, "filter").type_value.as_deref(),
Some("string")
);
}
#[test]
fn test_ts_optional_with_default() {
let source = r#"
/**
* Search with limit
*
* @param query - Search query
* @param limit - Max results
*/
export function run(query: string, limit: number = 10): string {
return "";
}
"#;
let declarations =
parse_ts_source(source, "search_with_limit", Path::new("tools")).unwrap();
let params = &declarations[0].parameters;
assert!(
params
.required
.as_ref()
.unwrap()
.contains(&"query".to_string())
);
assert!(
!params
.required
.as_ref()
.unwrap()
.contains(&"limit".to_string())
);
assert_eq!(
property(params, "limit").type_value.as_deref(),
Some("number")
);
}
#[test]
fn test_ts_shebang_parses() {
let source = r#"#!/usr/bin/env tsx
/**
* Get weather
* @param location - The city
*/
export function run(location: string): string {
return location;
}
"#;
let result = parse_ts_source(source, "get_weather", Path::new("tools"));
eprintln!("shebang parse result: {result:?}");
assert!(result.is_ok(), "shebang should not cause parse failure");
let declarations = result.unwrap();
assert_eq!(declarations.len(), 1);
assert_eq!(declarations[0].name, "get_weather");
}
}