openhands

An autonomous coding agent with terminal access that can edit files and run tests during a refactoring task. Refactoring means changing code's structure while aiming to keep its behavior the same.

In plain words
What is it for?
Use it to break up oversized functions, find their call sites, apply refactoring steps, and run the test suite after each step.
Why use it?
It supports small, test-checked changes and can undo a step when tests fail, making large refactors easier to control.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/muhiminosim/code-refactoring-skill/openhands
Clone the repo
git clone --depth 1 https://github.com/MuhiminOsim/code-refactoring-skill
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 306 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00306
Opus 5 $0.00000 $0.00153
Sonnet 5 $0.00000 $0.00061
Haiku 4.5 $0.00000 $0.00031

Measured yesterday against content hash 244448a46bf4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

openhands scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agents/openhands.md · 55 lines

What it actually says

Setup: OpenHands (formerly OpenDevin)

OpenHands is a fully autonomous agent with terminal access — it can run tests automatically, making it ideal for the full refactoring workflow with test-gating.

Via System Prompt Configuration

In config.toml (OpenHands config):

[core]
system_prompt = """
<paste PROMPT.md contents here>
"""

Or reference a file:

[core]
system_prompt_file = "/path/to/PROMPT.md"

Via Runtime Task Description

When starting a task, include the skill instructions in your initial message:

[paste PROMPT.md contents]

---

Now refactor the processOrder function in src/orders.ts. It's 200 lines and does too many things. Run tests after each step.

Why OpenHands Works Well

OpenHands has a full bash terminal — it can:

  • Run your test suite after every edit
  • Revert via git checkout on failure
  • Grep for call sites before renaming
  • Read multiple files in sequence

The skill's 5-phase process and rollback protocol map directly to what OpenHands can do autonomously.

Usage

Refactor src/orders.ts following safe refactoring practices:
1. Read the file
2. Detect code smells
3. Show me the plan
4. Execute one step at a time, running npm test after each change
5. Revert immediately if any test fails
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 55 lines · 0 tokens per session scan A 244448a46bf4

Subscribe to this mod's changes

openhands is an agent published in the GitHub repository MuhiminOsim/code-refactoring-skill (5 stars, last pushed 3mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 306 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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