execute_parallel

A command workflow for carrying out approved development tasks in separate, isolated work areas at the same time. It includes stages for implementation, testing, review, and cleanup.

In plain words
What is it for?
Use it to split suitable development work across parallel environments, run tests and reviews, save related plans with deliverables, and clean up afterward.
Why use it?
It helps teams handle independent tasks concurrently while keeping their changes separated and requiring agreement at defined points.

Command

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 commands/transparent-pegasus/herdrpowers/execute_parallel
Clone the repo
git clone --depth 1 https://github.com/transparent-pegasus/herdrpowers
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,920 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 $0.00017 $0.02920
Opus 5 $0.00009 $0.01460
Sonnet 5 $0.00003 $0.00584
Haiku 4.5 $0.00002 $0.00292

Measured 2d ago against content hash 13fd35a28c0a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

execute_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 2d 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.

commands/execute_parallel.md · 141 lines

How it starts

The opening of the file, as written. The whole thing — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/execute_parallel Workflow

This command runs the post-plan execution stages of the development cycle when the approved plan contains tasks that can be implemented safely in parallel. Follow these steps and require user consensus before advancing to the next phase, except between Step 2 and Step 3.

Deliverable Saves

Whenever this workflow saves a deliverable, also save any corresponding design/plan files in the same change so the artifact and its rationale stay together.

Workflow File Edits

Do not edit workflow files unless the user's current request explicitly asks to change a workflow file or workflow behavior. A workflow path alone can select the workflow context; it is not permission to edit that file. For example, update commands/plan.md ... permits editing the workflow, while commands/plan.md add a feature ... to the app does not.

Configuration

<KEY> placeholders in this workflow (for example <PLAN_PATH_PATTERN>) resolve from the Herdrpowers Configuration section of the repository's instruction files (CLAUDE.md / AGENTS.md). If that section is missing, run the pack's init workflow first: /herdrpowers:init on Claude Code plugin installs, or commands/init.md otherwise.

Orchestration

Every dispatch in this workflow goes through the orchestration skill, with using-herdr-sibling-panes as the transport. Read both before the first delegation, and resolve the repository's assignments and review gates as orchestration describes: .herdrpowers/config.yaml first, then orchestration/roles.yaml for anything it omits. Every gate this workflow would run is resolved up front; a gate set to enabled: false is skipped and named in the final report.

Routing comes from assignments:, not from this file, and the resolved YAML is the source of truth for every default — read each task's role and mode there rather than recalling one. This workflow touches implementation tracks (complex-coding / simple-coding), test-authoring, fix-round-test-authoring, review-fixes, chores, verification, documentation-impact-review, task-review, fix-round-re-review, and final-branch-review. A review task whose role binds to a list of agent types runs once per entry.

  • Track extraction, integration, and final synthesis stay with the orchestrator.
  • In-process subagents are not used for workflow work, and the Agent tool is not dispatched for it — with one exception: a review task whose resolved mode is orchestrator runs in a fresh subagent the orchestrator spawns.

Read the full file on GitHub · 141 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. 2d ago First seen · 141 lines · 17 tokens per session scan A 13fd35a28c0a

Subscribe to this mod's changes

execute_parallel is a command published in the GitHub repository transparent-pegasus/herdrpowers (11 stars, last pushed 5d ago), licensed Apache-2.0. It adds 17 tokens to every session and 2,920 once invoked, about $0.0001 per session on Opus 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.