parallel-dev

parallel-dev is a skill for Claude Code, Codex from EZotoff/ez-omo-config. It costs 0 tokens per session (1,861 once invoked), scanned A, original, MIT.

A decision guide for determining whether development work should be split between multiple agents.

In plain words
What is it for?
Use it to assess whether tasks are independent, estimate conflict risk, and decide between parallel work and a sequential approach.
Why use it?
It helps avoid the setup and merge costs of parallel work when tasks depend on each other, touch the same files, or are too small.

Skill for Claude CodeCodex

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

Good fit Use it to assess whether tasks are independent, estimate conflict risk, and decide between parallel work and a sequential approach.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ezotoff/ez-omo-config/parallel-dev
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 EZotoff/ez-omo-config --skill parallel-dev
Clone the repo
git clone --depth 1 https://github.com/EZotoff/ez-omo-config

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 parallel-dev

README.md
[![agentmods](https://agentmods.dev/badge/skills/ezotoff/ez-omo-config/parallel-dev/github.svg)](https://agentmods.dev/skills/ezotoff/ez-omo-config/parallel-dev)
Your own site
<a href="https://agentmods.dev/skills/ezotoff/ez-omo-config/parallel-dev"><img src="https://agentmods.dev/badge/skills/ezotoff/ez-omo-config/parallel-dev/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 parallel-dev

Your own site · 80×15
<a href="https://agentmods.dev/skills/ezotoff/ez-omo-config/parallel-dev"><img src="https://agentmods.dev/badge/skills/ezotoff/ez-omo-config/parallel-dev.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,861 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.
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 $0.00000 $0.01861
Opus 5.5 $0.00000 $0.00744
Sonnet 5.5 $0.00000 $0.00372
Haiku 4.5 $0.00000 $0.00186

Measured 1mo ago against content hash 05f737f34e2c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

parallel-dev 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

skills/parallel-dev/SKILL.md · 275 lines

How it starts

The opening of the file, as written. The whole thing — 275 lines — stays where its author put it; the contents beside it link to each section on GitHub.

parallel-dev

Should I Parallelize? Decision Framework

BEFORE spawning worktrees, evaluate:

MANDATORY Preconditions (ALL must be YES)

  1. Can the work be split into 2+ INDEPENDENT subtasks? (no shared state, no sequential dependencies)
  2. Will each subtask touch DIFFERENT files? (minimal overlap = minimal merge conflicts)
  3. Is the total effort > 30 minutes? (parallelization overhead: ~5 min setup + ~5 min merge per agent)

Risk Assessment (proceed if acceptable)

  1. If one agent fails, can others continue? (failure isolation)
  2. Can merge conflicts be resolved? (same-file changes = high conflict risk)

Decision Matrix

Subtasks File Overlap Effort Decision
1 N/A Any ❌ NO — not parallelizable
2+ None <30min ❌ NO — overhead exceeds benefit
2+ None >30min ✅ YES — parallelize
2+ Some >30min ⚠️ CAUTION — plan for conflicts
2+ High Any ❌ NO — sequential is safer

Examples

  • ✅ "Implement auth + Implement payments" → Different modules, parallelize
  • ✅ "Fix bug in API + Add tests for utils" → Different files, parallelize
  • ❌ "Refactor X + Add feature using X" → Sequential dependency, sequential execution
  • ❌ "Fix typo + Update README" | <5min total → Overhead exceeds benefit, sequential
  • ⚠️ "Update header in app.tsx + Add route in app.tsx" → Same file, sequential or plan for conflict

  • Name: parallel-dev
  • Description: Coordinate multi-agent parallel development with isolated worktrees, state-driven monitoring, and safe merge handoff
  • Triggers: /parallel-dev, parallel development, spawn agents

Workflow Overview

Decision Framework
  → Pre-Flight Check
  → Spawn Worktrees
  → Dispatch Tasks
  → Monitor Progress
  → Trigger Merge
  → Cleanup/Close

Lifecycle: Decision → Spawn worktrees → Dispatch tasks → Monitor → Merge → Cleanup.

Read the full file on GitHub · 275 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 275 lines · 0 tokens per session scan A 05f737f34e2c

Subscribe to this mod's changes

parallel-dev is a skill published in the GitHub repository EZotoff/ez-omo-config (6 stars, last pushed 7d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,861 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.