jaiph.org · Getting Started · Setup · Libraries · Grammar · CLI · Configuration · Testing · Hooks · Inbox & Dispatch · Sandboxing · Runtime artifacts · Architecture · Contributing

---

Open Source · Powerful · Friendly

What is Jaiph?

Jaiph is a composable scripting language and runtime for defining and orchestrating AI agent workflows. You write .jh files that combine prompts, rules, scripts, and workflows into executable pipelines. The CLI parses source into an AST, validates references at compile time, and the Node workflow runtime interprets the AST directly.

Warning

Jaiph is still in an early stage. Expect breaking changes.

Core components

• CLI (src/cli) — jaiph run / test / format / init / install / use; spawns the workflow runner, parses live events, runs hooks.
• Parser (src/parser.ts, src/parse/*) — .jh / .test.jh → AST.
• Validator (src/transpile/validate.ts) — imports and symbol references at compile time.
• Transpiler (src/transpile/*) — emits atomic script files under scripts/ only (no workflow-level shell).
• Node workflow runtime (src/runtime/kernel/node-workflow-runtime.ts, graph.ts) — interprets the AST; buildRuntimeGraph() is parse-only across imports.
• Node test runner (src/runtime/kernel/node-test-runner.ts) — *.test.jh blocks with mocks.
• JS kernel (src/runtime/kernel/) — prompts, managed scripts, __JAIPH_EVENT__, inbox, mocks. Diagrams, runtime contracts, on-disk artifact layout, and distribution: Architecture. Test layers and E2E policy: Contributing.

Quick try

Run a sample workflow without installing anything first:

curl -fsSL https://jaiph.org/run | bash -s '
workflow default() {
  const response = prompt "Say: Hello I'\''m [model name]!"
  log response
}'

Requires node and curl. The script installs Jaiph automatically if needed.

Install

curl -fsSL https://jaiph.org/install | bash

Or install from npm:

npm install -g jaiph

Verify: jaiph --version. Switch versions: jaiph use nightly or jaiph use 0.9.2.

Example

#!/usr/bin/env jaiph

import "tools/security.jh" as security

script check_deps = `test -f "package.json"`

rule deps_exist() {
  run check_deps() catch (err) {
    fail "Missing package.json"
  }
}

workflow default(task) {
  ensure deps_exist()
  const ts = run `date +%s`()
  prompt "Build the application: ${task}"
  ensure security.scan_passes()
}

./main.jh "add user authentication"

For the full language reference, see Grammar. For install, workspace layout, libraries, CLI commands, configuration, testing, sandboxing, hooks, inbox dispatch, and on-disk run output, see Getting Started (map), Setup, and Runtime artifacts, or visit jaiph.org.

Start here

• AI agent who wants to work in a predictable, structured way? Read the Agent Skill — it teaches you how to author Jaiph workflows and makes your behavior verifiable and auditable.
• Human who manages agents and wants reliable, repeatable automation? See the Samples and Getting Started.
• Contributor who wants to improve Jaiph itself? See Contributing.

Contributing

See Contributing for branch strategy, pull requests, the test layers, and code style. Use GitHub Issues for bugs and feature discussion.

License

Apache License 2.0.