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Agent skill

Swe Marathon Five Arm

by loopx-project in loopx-project/loopx

Migrate historical SWE-Marathon agent configurations to the shared Codex runtime.

Apache-2.0Auto-check passedDevelopment

Install Swe Marathon Five Arm

skills CLI
$ npx skills add loopx-project/loopx --skill swe-marathon-five-arm -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install loopx-project/loopx swe-marathon-five-arm --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/loopx-project/loopx.git skills-src && mkdir -p .claude/skills && cp -r skills-src/benchmark/swe-marathon/skills/swe-marathon-five-arm .claude/skills/swe-marathon-five-arm && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
swe-marathon-five-arm
GitHub stars
6.2k
Token cost
~227 tokens
SKILL.md length
102 words
Files
1
Skills in repo
12
Repo updated
First seen
Licence
Apache-2.0

At a glance

Migrate historical SWE-Marathon agent configurations to the shared Codex runtime.

  • Development work in your project
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Swe Marathon Five Arm is an agent skill from loopx-project/loopx. Migrate historical SWE-Marathon agent configurations to the shared Codex runtime.

Its SKILL.md is about 230 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development. The repository describes itself as: A control plane with a durable state kernel for long-horizon agents and teams. Keep work moving and improving across sessions, with less human attention. The licence is Apache-2.0.

When your agent uses it

  • Development work in your project

Example prompts

  • “/swe-marathon-five-arm”

What it can do on your machine

Read from SKILL.md and the folder at commit 82d1b83. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Swe Marathon Five Arm loads about 227 tokens when it runs. Until then it costs about 26 tokens; SKILL.md has 102 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~26
When it runs · the whole SKILL.md, loaded when a task matches
~227

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from loopx-project/loopx at commit 82d1b83, republished under its Apache-2.0 licence (© loopx-project). 102 words, ~227 tokens.

Download SKILL.mdSave it as .claude/skills/swe-marathon-five-arm/SKILL.md (or your agent's skills folder).
name
swe-marathon-five-arm
description
Migrate historical SWE-Marathon agent configurations to the shared Codex runtime.

SWE-Marathon shared execution

Read ../../runtime/RUNTIME.md and ../../../runtime/RUNTIME.md before preparing a new study. Use the shared Harbor adapter and its explicit execution_mode and iteration_context, preserving native tasks, verifier policy and scoring.

The historical five-arm WEN framework is retired. Do not run its assisted unblock or sandbox-replacement wrappers, reinterpret withdrawn results, or invent an independent validator from git status. Existing study data and withdrawal notices remain tied to their original source revision.

Validate the chosen native environment with a bounded task before a full run. Model jobs, verifier access and publication require the caller's authorization; loading this migration guide grants none of those actions.

© loopx-project, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in benchmark/swe-marathon/skills/swe-marathon-five-arm of loopx-project/loopx.

Open the folder on GitHubat commit 82d1b83

Compare with similar skills

Swe Marathon Five Arm next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Swe Marathon Five Arm compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Swe Marathon Five Arm this skillloopx-project/loopx6.2k—~227Automated safety check: PassApache-2.0
Vercel Composition Patternssupabase/supabase111k59 repos~726Automated safety check: PassMIT
Finishing a Development Branchobra/superpowers296k5 repos~1.9kAutomated safety check: PassMIT
Typescript Advanced Typesrolling-scopes/rsschool-app10k25 repos~4.2kAutomated safety check: PassMPL-2.0
PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k5 repos~1.1kAutomated safety check: PassMIT

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Categories

Questions about Swe Marathon Five Arm

What does Swe Marathon Five Arm do?

Migrate historical SWE-Marathon agent configurations to the shared Codex runtime. Swe Marathon Five Arm is an agent skill from loopx-project/loopx. Migrate historical SWE-Marathon agent configurations to the shared Codex runtime.

When should I use Swe Marathon Five Arm?

Swe Marathon Five Arm fits situations like: development work in your project.

How do I install Swe Marathon Five Arm in Claude Code?

Run `npx skills add loopx-project/loopx --skill swe-marathon-five-arm -a claude-code`. Or copy the skill folder (benchmark/swe-marathon/skills/swe-marathon-five-arm in loopx-project/loopx) into .claude/skills/swe-marathon-five-arm in your project. Claude Code loads it when a task matches its description.

How do I install Swe Marathon Five Arm in Codex?

Run `npx skills add loopx-project/loopx --skill swe-marathon-five-arm -a codex`. Or copy the skill folder (benchmark/swe-marathon/skills/swe-marathon-five-arm in loopx-project/loopx) into .agents/skills/swe-marathon-five-arm in your project. Codex loads it when a task matches its description.

Can I use Swe Marathon Five Arm in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add loopx-project/loopx --skill swe-marathon-five-arm -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/swe-marathon-five-arm, .gemini/skills/swe-marathon-five-arm, .github/skills/swe-marathon-five-arm and .opencode/skills/swe-marathon-five-arm in your project.

What does Swe Marathon Five Arm need to run?

SKILL.md names no scripts, command-line tools or credentials: Swe Marathon Five Arm is instructions for the agent only.

Does Swe Marathon Five Arm access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Swe Marathon Five Arm safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Swe Marathon Five Arm use?

Swe Marathon Five Arm is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Swe Marathon Five Arm use?

About 227 tokens (SKILL.md is roughly 908 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Swe Marathon Five Arm?

Skills that share tags, products or a category with Swe Marathon Five Arm: Vercel Composition Patterns (supabase/supabase, 111k stars), Finishing a Development Branch (obra/superpowers, 296k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars) and PR Babysitter (openinterpreter/openinterpreter, 69k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Swe Marathon Five Arm?

loopx-project (a GitHub organization) maintains it in loopx-project/loopx, which has 6,190 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on October 8, 2026.

Source: loopx-project/loopx on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.