ultra-dev

ultra-dev is a command for Claude Code from rocky2431/ultra-builder-pro. It costs 8 tokens per session (4,395 once invoked), scanned A, original, MIT.

A command for carrying out a development task with test-driven development, or TDD: write a failing test, add the smallest code that passes it, then improve the code. It also runs quality checks and tracks the task through completion.

In plain words
What is it for?
Use it to select a task, set up the environment, write tests and implementation, refactor, run quality checks, review the work, and commit or merge the result.
Why use it?
It gives each coding task a repeatable path from setup to review and commit. Writing tests first can make the intended behaviour clearer and reveal mistakes earlier.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter; mentions CLAUDE.md; mentions subagents.

Good fit Use it to select a task, set up the environment, write tests and implementation, refactor, run quality checks, review the work, and commit or merge the result.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/rocky2431/ultra-builder-pro/ultra-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.

Clone the repo
git clone --depth 1 https://github.com/rocky2431/ultra-builder-pro

Made for: Claude Code.

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 ultra-dev

README.md
[![agentmods](https://agentmods.dev/badge/commands/rocky2431/ultra-builder-pro/ultra-dev.svg)](https://agentmods.dev/commands/rocky2431/ultra-builder-pro/ultra-dev)
Your own site
<a href="https://agentmods.dev/commands/rocky2431/ultra-builder-pro/ultra-dev"><img src="https://agentmods.dev/badge/commands/rocky2431/ultra-builder-pro/ultra-dev.svg" alt="Measured on agentmods" height="20"></a>
Per session 8 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,395 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 $0.00008 $0.04395
Opus 5 $0.00004 $0.02197
Sonnet 5 $0.00002 $0.00879
Haiku 4.5 $0.00001 $0.00439

Measured 7d ago against content hash e56e41a4559d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

ultra-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 7d 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/ultra-dev.md · 456 lines

How it starts

The opening of the file, as written. The whole thing — 456 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/ultra-dev

Workflow Tracking (MANDATORY)

On command start, create tasks for each major step using TaskCreate:

Step Subject activeForm
1 Task Selection Selecting task...
1.5 Update Status to In-Progress Updating task status...
2 Environment Setup Setting up environment...
3 TDD Cycle Running TDD cycle...
3.1 TDD: RED Phase Writing failing tests...
3.2 TDD: GREEN Phase Writing minimal code...
3.3 TDD: REFACTOR Phase Refactoring code...
4 Quality Gates Running quality gates...
4.5 Ultra Review Running ultra-review...
5 Update Status to Completed Updating task status...
5.5 Pre-Commit Checklist Verifying checklist...
6 Commit and Merge Committing and merging...
7 Report Generating report...

Before each step: TaskUpdatestatus: "in_progress" After each step: TaskUpdatestatus: "completed" On context recovery: TaskList → resume from last incomplete step


Execute development tasks using TDD workflow.

Arguments

  • $1: Task ID (if empty, auto-select next pending task)

Workflow

Step 0: Workflow Resume Check (Before Task Selection)

  1. Check if .ultra/workflow-state.json exists
  2. If yes AND branch matches current branch:
    • Display: "Resuming task {id} from Step {step}: {status}"
    • Skip to the step AFTER the last completed checkpoint
    • If review_session exists, skip re-running review
  3. If no or branch mismatch: proceed to Step 0.5

Step 0.5: Design Approval Gate (First Run Only)

Trigger: .ultra/workflow-state.json does NOT exist (first run, not resume)

  1. Check .ultra/tasks/tasks.json exists
    • If missing → "No task plan found. Run /ultra-plan first to create task decomposition." → EXIT
    • If ANY task has status completed or in_progress → plan was already approved in a prior run → skip gate, proceed to Step 1
  2. Read tasks.json, display overview:
    • Total tasks, priority distribution (P0/P1/P2), complexity range
    • Full task list (ID, title, priority, dependencies)
    • Whether Walking Skeleton is Task #1
  3. Use AskUserQuestion to request confirmation:
    • "Confirm this task breakdown to start implementation?"
    • Option A: "Confirm, start implementation" → Continue to Step 1
    • Option B: "Revise plan first" → Suggest /ultra-plan → EXIT
  4. On approval, write workflow-state.json:
    {"command":"ultra-dev","task_id":0,"branch":"","step":"0.5","status":"design_approved","ts":"ISO8601"}
    

Read the full file on GitHub · 456 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. 7d ago First seen · 456 lines · 8 tokens per session scan A e56e41a4559d

Subscribe to this mod's changes

ultra-dev is a command published in the GitHub repository rocky2431/ultra-builder-pro (11 stars, last pushed 1mo ago), licensed MIT. It adds 8 tokens to every session and 4,395 once invoked, about $0.0000 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.