fleet-parallel

fleet-parallel is a skill for Claude Code, Codex from drvoss/everything-copilot-cli. It costs 46 tokens per session (3,347 once invoked), scanned A, original, MIT.

A workflow for splitting a large task into independent pieces and having multiple AI agents work on those pieces at the same time.

In plain words
What is it for?
Use it for repeated refactoring, bulk testing, reviewing several pull requests, or running separate code, documentation, or migration tasks.
Why use it?
It shortens batch work when files or tasks do not depend on one another, while avoiding parallel changes that could conflict.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it for repeated refactoring, bulk testing, reviewing several pull requests, or running separate code, documentation, or migration tasks.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/drvoss/everything-copilot-cli/fleet-parallel
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.

Any agent
npx skills add drvoss/everything-copilot-cli --skill fleet-parallel
Clone the repo
git clone --depth 1 https://github.com/drvoss/everything-copilot-cli

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for fleet-parallel

README.md
[![agentmods](https://agentmods.dev/badge/skills/drvoss/everything-copilot-cli/fleet-parallel/github.svg)](https://agentmods.dev/skills/drvoss/everything-copilot-cli/fleet-parallel)
Your own site
<a href="https://agentmods.dev/skills/drvoss/everything-copilot-cli/fleet-parallel"><img src="https://agentmods.dev/badge/skills/drvoss/everything-copilot-cli/fleet-parallel/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for fleet-parallel

Your own site · 80×15
<a href="https://agentmods.dev/skills/drvoss/everything-copilot-cli/fleet-parallel"><img src="https://agentmods.dev/badge/skills/drvoss/everything-copilot-cli/fleet-parallel.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,347 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Excessive Agency · line 264
    Skill allows unbounded resource consumption (API calls, storage, compute). Without rate limits or quotas, a compromised or misbehaving agent can cause denial-of-service or cost overruns.
    Fix: Set explicit rate limits, timeouts, and resource quotas for API calls, file operations, and compute. Implement circuit breakers for runaway loops.
How audits are shown
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 5.1 $0.00046 $0.03347
Opus 5.5 $0.00018 $0.01339
Sonnet 5.5 $0.00009 $0.00669
Haiku 4.5 $0.00005 $0.00335

Measured 1mo ago against content hash 18569b35b2ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

fleet-parallel 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 1mo ago.

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.

skills/copilot-exclusive/fleet-parallel/SKILL.md · 328 lines

How it starts

The opening of the file, as written. The whole thing — 328 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Fleet Mode Parallel Execution

Why This is Copilot-Exclusive

Copilot CLI's Fleet mode launches multiple autonomous agents in parallel, each working on an independent subtask in its own context window. This is a fundamentally different execution model — not just "run commands in parallel" but full AI agents running concurrently with their own tool access. Those subagents are also steerable: if an in-flight agent starts drifting, you can send a follow-up message to correct course instead of waiting for the whole run to finish.

When to Use

  • Refactoring the same pattern across many files simultaneously
  • Reviewing multiple PRs or issues in parallel
  • Running independent code generation tasks (tests, docs, migrations)
  • Batch-processing items where each item needs AI reasoning, not just scripting
  • Any task that decomposes into 3+ independent units of work

When NOT to Use

Instead of fleet-parallel Use
A single-file or single-function change Work directly in the current session
A task with ordered dependencies between steps Plan the sequence and run it serially
Subtasks that would edit the same file, lockfile, or generated artifact Split ownership first or avoid fleet mode
A tiny batch of 2-3 trivial items Handle them sequentially unless agent overhead is clearly worth it

Write-Scope Conflict Guard

Before launching any fleet batch, validate that no two agents share write scope:

Rule: Same file = sequential. Different files = parallel.
  • List all files each subtask will modify
  • If two tasks name the same file, one must wait — do not launch them in the same batch
  • Lockfiles, generated files, and shared config are treated the same as source files
  • If scope overlap is discovered mid-run, stop the later agent, let the earlier one finish, then requeue

Workflow

1. Use the /fleet Slash Command (Recommended)

The simplest way to trigger fleet mode is the /fleet command:

Read the full file on GitHub · 328 lines

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. 1mo ago First seen · 328 lines · 46 tokens per session scan A 18569b35b2ab

Subscribe to this mod's changes

fleet-parallel is a skill published in the GitHub repository drvoss/everything-copilot-cli (47 stars, last pushed 24d ago), licensed MIT. It adds 46 tokens to every session and 3,347 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.

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