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.
npx agentmods add skills/catlog22/claude-code-workflow/parallel-dev-cyclenpx skills add catlog22/Claude-Code-Workflow --skill parallel-dev-cyclegit clone --depth 1 https://github.com/catlog22/Claude-Code-WorkflowWrote 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.
[](https://agentmods.dev/skills/catlog22/claude-code-workflow/parallel-dev-cycle)<a href="https://agentmods.dev/skills/catlog22/claude-code-workflow/parallel-dev-cycle"><img src="https://agentmods.dev/badge/skills/catlog22/claude-code-workflow/parallel-dev-cycle.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00053 | $0.04241 |
| Opus 5 | $0.00026 | $0.02121 |
| Sonnet 5 | $0.00011 | $0.00848 |
| Haiku 4.5 | $0.00005 | $0.00424 |
Grade A, and why
parallel-dev-cycle 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 yesterday.
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.
How it starts
The opening of the file, as written. The whole thing — 410 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Parallel Dev Cycle
Multi-agent parallel development cycle using Codex subagent pattern with four specialized workers:
- Requirements Analysis & Extension (RA) - Requirement analysis and self-enhancement
- Exploration & Planning (EP) - Codebase exploration and implementation planning
- Code Development (CD) - Code development with debug strategy support
- Validation & Archival Summary (VAS) - Validation and archival summary
Orchestration logic (phase management, state updates, feedback coordination) runs inline in the main flow — no separate orchestrator agent is spawned. Only 4 worker agents are allocated.
Each agent maintains one main document (e.g., requirements.md, plan.json, implementation.md) that is completely rewritten per iteration, plus auxiliary logs (changes.log, debug-log.ndjson) that are append-only.
Architecture Overview
┌─────────────────────────────────────────────────────────────┐
│ User Input (Task) │
└────────────────────────────┬────────────────────────────────┘
│
v
┌──────────────────────────────┐
│ Main Flow (Inline Orchestration) │
│ Phase 1 → 2 → 3 → 4 │
└──────────────────────────────┘
│
┌────────────────────┼────────────────────┐
│ │ │
v v v
┌────────┐ ┌────────┐ ┌────────┐
│ RA │ │ EP │ │ CD │
│Agent │ │Agent │ │Agent │
└────────┘ └────────┘ └────────┘
│ │ │
└────────────────────┼────────────────────┘
│
v
┌────────┐
│ VAS │
│ Agent │
└────────┘
│
v
┌──────────────────────────────┐
│ Summary Report │
│ & Markdown Docs │
└──────────────────────────────┘
What ships with it
9 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.
- phases/00-prep-checklist.md 6.3 KB
- phases/01-session-init.md 7.8 KB
- phases/02-agent-execution.md 14 KB
- phases/03-result-aggregation.md 5.6 KB
- phases/04-completion-summary.md 2.8 KB
- roles/code-developer.md 14 KB
- roles/exploration-planner.md 11 KB
- roles/requirements-analyst.md 14 KB
- roles/validation-archivist.md 13 KB
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.
- yesterday First seen · 410 lines · 53 tokens per session scan A 67bdb098e662
parallel-dev-cycle is a skill published in the GitHub repository catlog22/Claude-Code-Workflow (2,133 stars, last pushed 2mo ago), licensed MIT. It adds 53 tokens to every session and 4,241 once invoked, about $0.0003 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 2026-09-03.
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spawn-agent
Spawn worker agents (Gemini CLI or Codex CLI) to keep main context clean. Use for implementation, codebase research, context gathering, or any scoped work that would pollute the orchestrator's context.
newsroom-style
Apply AP Style and common newsroom conventions when writing or editing news articles, briefs, and headlines. Use when drafting publishable copy, editing contributor submissions, or converting informal notes into news-ready language.
beat-brief
Draft a short daily beat briefing from a folder of incoming source documents. Use when the reporter wants a five-bullet summary of the day's material with attribution flags and follow-up actions.