Paseo Advisor Second Opinion
getpaseo/paseo
Launches one separate agent through Paseo to give a second opinion on the current task, with a self-contained briefing and no permission to edit files.
Runs several parallel attempts at the same task, picks the strongest as a base, grafts the best ideas from the others into it, then verifies the merged result.
Install Arena Parallel Candidates
$ npx skills add cursor/plugins --skill arena -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install cursor/plugins arena --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/cursor/plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/pstack/skills/arena .claude/skills/arena && rm -rf skills-srcUse ~/.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/
Install the "arena" agent skill from https://github.com/cursor/plugins/tree/main/pstack/skills/arena into .claude/skills/arena/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arena", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/cursor/plugins/tree/main/pstack/skills/arenaType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add cursor/plugins --skill arena -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install cursor/plugins arena --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cursor/plugins.git skills-src && mkdir -p .agents/skills && cp -r skills-src/pstack/skills/arena .agents/skills/arena && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "arena" agent skill from https://github.com/cursor/plugins/tree/main/pstack/skills/arena into .agents/skills/arena/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arena", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cursor/plugins --skill arena -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install cursor/plugins arena --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cursor/plugins.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/pstack/skills/arena .cursor/skills/arena && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "arena" agent skill from https://github.com/cursor/plugins/tree/main/pstack/skills/arena into .cursor/skills/arena/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arena", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/cursor/plugins.git --path pstack/skills/arena--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add cursor/plugins --skill arena -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install cursor/plugins arena --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cursor/plugins.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/pstack/skills/arena .gemini/skills/arena && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "arena" agent skill from https://github.com/cursor/plugins/tree/main/pstack/skills/arena into .gemini/skills/arena/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arena", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install cursor/plugins arenaInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add cursor/plugins --skill arena -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/cursor/plugins.git skills-src && mkdir -p .github/skills && cp -r skills-src/pstack/skills/arena .github/skills/arena && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "arena" agent skill from https://github.com/cursor/plugins/tree/main/pstack/skills/arena into .github/skills/arena/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arena", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add cursor/plugins --skill arena -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install cursor/plugins arena --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cursor/plugins.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/pstack/skills/arena .opencode/skills/arena && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "arena" agent skill from https://github.com/cursor/plugins/tree/main/pstack/skills/arena into .opencode/skills/arena/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "arena", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
arena- GitHub stars
- 10k
- Used in
- 8 other repos
- Token cost
- ~1.2k tokens
- SKILL.md length
- 727 words
- Files
- 1
- Skills in repo
- 99
- Repo updated
- First seen
- Licence
- None found
At a glance
Runs several parallel attempts at the same task, picks the strongest as a base, grafts the best ideas from the others into it, then verifies the merged result.
- Works in 6 steps: Frame → Fan out → Cross-judge → …
- A non-trivial artifact where a single attempt may fix the wrong design
- SKILL.md covers Start, Phase A: Frame, Phase B: Fan out and Phase C: Cross-judge, plus 4 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Arena is for work where one attempt could lock in the wrong shape. The agent opens a todo list with six phases: frame, fan out, cross-judge, pick, graft and verify. Framing fixes the shared prompt, derives a rubric of three to six gradeable criteria that only the picker sees, chooses which models run the candidates from a rules file or defaults, and gives every candidate its own output location, a git worktree where possible.
In the fan-out phase all subagents start in one message in the background. Each gets the task, a path to shared grounding and its output path, and returns the artifact plus a short rationale naming the alternatives it considered and rejected. If one candidate produces nothing, the run continues with the rest and notes the dropout. The agent reads every candidate end to end before choosing a base. The excerpt cuts off before the later phases.
When your agent uses it
- A non-trivial artifact where a single attempt may fix the wrong design
- Comparing several design directions and combining their best parts
- You ask to arena a task or throw it in the arena
Example prompts
- “Arena this: draft the public API for the new caching layer.”
- “Throw the onboarding email sequence in the arena and merge the strongest parts.”
- “Run parallel candidates for the settings page redesign and pick a base to build on.”
Requirements
- An agent that can start background subagents
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Frame
- Fan out
- Cross-judge
- Pick
- Graft
- Verify
What it can do on your machine
Read from SKILL.md and the folder at commit 9f451cf. 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
Arena Parallel Candidates loads about 1.2k tokens when it runs. Until then it costs about 61 tokens; SKILL.md has 727 words of instructions outside code blocks.
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
Without a licence we can't republish the file, so here is its outline and opening line. It has 727 words (~1,235 tokens).
“Fan out N parallel attempts at the same task. Read every candidate end to end. Pick the strongest as the base. Graft the best ideas from the others into it. Verify the synthesized result.”
- name
- arena
- disable-model-invocation
- true
Files
Just SKILL.md in pstack/skills/arena of cursor/plugins.
Open the folder on GitHubat commit 9f451cf
Used in 8 other repositories
We found 8 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 8 other GitHub owners. This page covers the copy in cursor/plugins, which our catalogue first saw on October 7, 2026.
- chmonitor/chmonitor.claude/skills/pstack/upstream/skills/arena
- Sma1lboy/rove.agents/skills/pstack/skills/arena
- michael-denyer/pstack-claudeplugins/pstack/skills/arena
- backnotprop/pstackskills/arena
- tellahq/opensession.agents/skills/pstack-suite/skills/arena
- am-will/gooey-pi.agents/skills/pstack/arena
- jtaroreh/agystackskills/arena
- uzairansaruzi/p3-stackskills/arena
Compare with similar skills
Arena Parallel Candidates 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Arena Parallel Candidates this skillcursor/plugins | 10k | 8 repos | ~1.2k | Automated safety check: Pass | None | |
| Paseo Advisor Second Opiniongetpaseo/paseo | 20k | 1 repos | ~756 | Automated safety check: Pass | Custom licence | |
| O2 Review Loopopenobserve/openobserve | 22k | — | ~3.7k | Automated safety check: Pass | AGPL-3.0 | |
| Harness Agent Team Designerrevfactory/harness | 9.1k | — | ~4.5k | Automated safety check: Pass | Apache-2.0 | |
| ClawTeam Multi-Agent Swarmwin4r/ClawTeam-OpenClaw | 1.5k | 1 repos | ~2.9k | Automated safety check: Pass | MIT | |
| Sub-Agent Delegationcodewhale-hq/Codewhale | 41k | — | ~790 | Automated safety check: Pass | MIT |
Similar skills
O2 Review Loop
openobserve/openobserve
Splits a change into planner, coder and independent reviewer roles: you confirm a spec, a subagent implements it, and a separate reviewer checks each round's local WIP commit.
Harness Agent Team Designer
revfactory/harness
Designs a project-specific agent harness: defines specialist agents, writes the skills they follow, picks an execution mode and model for each, and keeps the setup maintained.
ClawTeam Multi-Agent Swarm
win4r/ClawTeam-OpenClaw
Launches a swarm of specialist Hermes agents in git-worktree-isolated tmux windows with a kanban board and file-based inboxes, using built-in templates like hedge-fund and code-review.
Sub-Agent Delegation
codewhale-hq/Codewhale
Guides when and how to split multi-step coding, research or verification work into focused sub-agent runs while the parent keeps integration and final checks.
Parallel Agents
xenitV1/Antigravity-Workflows
Native multi-agent orchestration using Claude Code's Agent Tool.
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All 99 skills in this repo- Official
Show Me Your Work Decision Log
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Keeps a TSV decision log for long or unattended agent runs, one row per decision with what, why, evidence and result, so a reviewer can check the work later.
- Official
Code Design Rationale Investigator
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Digs into why code is shaped the way it is by checking git history, pull requests and connected tools in parallel, then reporting a cited read on the tradeoffs.
- Official
Reflect on Session Learnings
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Starts three parallel reviewer subagents over the current conversation transcript, then turns their findings into concrete edits to existing skills.
- Official
Technical Writing Standard
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- Official
Advisor Mode
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- Official
Make PR Easy To Review
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Prepare PRs for review by cleaning noisy history, improving PR descriptions, and adding reviewer guidance without changing code behavior.
Related
Categories
Questions about Arena Parallel Candidates
What does Arena Parallel Candidates do?
Runs several parallel attempts at the same task, picks the strongest as a base, grafts the best ideas from the others into it, then verifies the merged result. Arena is for work where one attempt could lock in the wrong shape. The agent opens a todo list with six phases: frame, fan out, cross-judge, pick, graft and verify.
When should I use Arena Parallel Candidates?
Arena Parallel Candidates fits situations like: A non-trivial artifact where a single attempt may fix the wrong design; comparing several design directions and combining their best parts; you ask to arena a task or throw it in the arena.
How do I install Arena Parallel Candidates in Claude Code?
Run `npx skills add cursor/plugins --skill arena -a claude-code`. Or copy the skill folder (pstack/skills/arena in cursor/plugins) into .claude/skills/arena in your project. Claude Code loads it when a task matches its description.
How do I install Arena Parallel Candidates in Codex?
Run `npx skills add cursor/plugins --skill arena -a codex`. Or copy the skill folder (pstack/skills/arena in cursor/plugins) into .agents/skills/arena in your project. Codex loads it when a task matches its description.
Can I use Arena Parallel Candidates 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 cursor/plugins --skill arena -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/arena, .gemini/skills/arena, .github/skills/arena and .opencode/skills/arena in your project.
What does Arena Parallel Candidates need to run?
SKILL.md names no scripts, command-line tools or credentials: Arena Parallel Candidates is instructions for the agent only. Our summary lists: An agent that can start background subagents.
Does Arena Parallel Candidates 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 Arena Parallel Candidates 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 Arena Parallel Candidates use?
No licence was found for Arena Parallel Candidates or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Arena Parallel Candidates use?
About 1.2k tokens (SKILL.md is roughly 4.9k 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 Arena Parallel Candidates?
Skills that share tags, products or a category with Arena Parallel Candidates: Paseo Advisor Second Opinion (getpaseo/paseo, 20k stars), O2 Review Loop (openobserve/openobserve, 22k stars), Harness Agent Team Designer (revfactory/harness, 9.1k stars) and ClawTeam Multi-Agent Swarm (win4r/ClawTeam-OpenClaw, 1.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Arena Parallel Candidates?
cursor (a GitHub organization, an official publisher) maintains it in cursor/plugins, which has 10,130 GitHub stars. The repository holds 99 skills in this directory. The repository was last updated on October 6, 2026.
Source: cursor/plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.