oneuptime/Copilot

OneUptime Copilot Agent

A standalone CLI coding agent that mirrors the autonomous workflows we use inside VS Code Copilot Chat. It connects to LM Studio, Ollama, OpenAI, or Anthropic chat-completion models, inspects a workspace, reasons about the task, and uses a toolbox (file/patch editing, search, terminal commands) to complete coding requests.

Prerequisites

• Node.js 18+
• At least one supported LLM provider:
  • LM Studio exposing a chat completions endpoint (for example http://localhost:1234/v1/chat/completions).
  • Ollama running locally with the OpenAI-compatible HTTP server (default http://localhost:11434/v1/chat/completions).
  • OpenAI API access and an API key with chat-completions enabled.
  • Anthropic API access and an API key with Messages API enabled.
• The workspace you want the agent to modify must already exist locally.

Installation

cd Copilot
npm install
npm run build
npm link   # optional, provides the global oneuptime-copilot command

Usage

LM Studio (local HTTP endpoint)

oneuptime-copilot \
  --prompt "Refactor auth middleware and add unit tests" \
  --provider lmstudio \
  --model http://localhost:1234/v1/chat/completions \
  --model-name openai/gpt-oss-20b \
  --workspace-path ./

OpenAI (hosted)

oneuptime-copilot \
  --prompt "Refactor auth middleware and add unit tests" \
  --provider openai \
  --model-name gpt-4o-mini \
  --api-key "$OPENAI_API_KEY" \
  --workspace-path ./

Anthropic (hosted)

oneuptime-copilot \
  --prompt "Refactor auth middleware and add unit tests" \
  --provider anthropic \
  --model-name claude-3-5-sonnet-latest \
  --api-key "$ANTHROPIC_API_KEY" \
  --workspace-path ./

Ollama (local OpenAI-compatible endpoint)

oneuptime-copilot \
  --prompt "Refactor auth middleware and add unit tests" \
  --provider ollama \
  --model-name mistral:7b-instruct \
  --workspace-path ./

CLI options

Flag	Description
--prompt	Required. Natural language description of the task.
--provider	Selects the LLM backend: lmstudio (default), ollama, openai, or anthropic.
--model	Endpoint override. Required for lmstudio; optional for other providers (defaults to their hosted or local API).
--workspace-path	Required. Absolute or relative path to the repo the agent should use.
--model-name	Provider-specific model identifier (default lmstudio).
--temperature	Sampling temperature (default 0.1).
--max-iterations	Maximum agent/tool-call loops before stopping (default 100).
--timeout	LLM HTTP timeout per request in milliseconds (default 120000).
--api-key	Required for OpenAI/Anthropic; optional bearer token for secured LM Studio/Ollama endpoints.
--log-level	debug, info, warn, or error (default info).
--log-file	Optional file path. When provided, all logs are appended to this file in addition to stdout.

Provider cheatsheet:

• lmstudio – Always pass a full HTTP endpoint via --model. API keys are optional.
• ollama – Defaults to http://localhost:11434/v1/chat/completions; override with --model when remote tunneling. API keys are optional.
• openai – Provide --api-key and --model-name (for example gpt-4o-mini). --model is optional and defaults to https://api.openai.com/v1/chat/completions.
• anthropic – Provide --api-key and --model-name (for example claude-3-5-sonnet-latest). --model falls back to https://api.anthropic.com/v1/messages when omitted.

Debug logging

Pass --log-file when running the agent to persist verbose debugging output (including debug level messages) for later inspection:

oneuptime-copilot \
  --prompt "Track flaky jest tests" \
  --provider lmstudio \
  --model http://localhost:1234/v1/chat/completions \
  --workspace-path ./ \
  --log-file ./logs/copilot-agent-debug.log

The agent will create any missing parent directories and continuously append to the specified file while still streaming logs to stdout.

Architecture snapshot

• src/agent – Orchestrates the conversation loop, builds the system prompt (inspired by the VS Code Copilot agent), snapshots the workspace, and streams messages to the configured provider.
• src/tools – Implements the toolbelt (list_directory, read_file, search_workspace, apply_patch, write_file, run_command). These wrap Common utilities (Execute, LocalFile, Logger) to stay consistent with other OneUptime services.
• src/llm – Contains the LM Studio/Ollama/OpenAI-compatible clients plus the native Anthropic adapter, all using undici with timeout + error handling.
• src/@types/Common – Lightweight shim typings so TypeScript consumers get the pieces of Common they need without re-compiling that entire package.

Development scripts

npm run build   # Compile TypeScript -> build/dist
npm run dev     # Run with ts-node for quick experiments

For example:

npm run dev -- --prompt "Write tests for this project. These tests should be in Jest and TypeScript." \
  --provider lmstudio \
  --model http://localhost:1234/v1/chat/completions \
  --model-name deepseek/deepseek-r1-0528-qwen3-8b \
  --workspace-path ./ \
  --log-file ./copilot-agent-debug.log

The agent intentionally mirrors Copilot’s workflow: it iteratively plans, reads files, edits them through patches or full rewrites, and executes commands/tests via the terminal tool. Logs stream to stdout so you can follow each tool invocation in real time.