abd-dev-junior

abd-dev-junior is a skill for Claude Code from RealDougEubanks/ClaudeMarketplace. It costs 28 tokens per session (298 once invoked), scanned A, original, MIT.

A junior development role in an agent-based development workflow. It reads the project plan and design, implements an assigned task on a feature branch, checks the minimum viable product requirements, and opens a pull request.

In plain words
What is it for?
Use it for routine feature implementation, MVP verification, development handoffs, and pull requests into the release branch.
Why use it?
It turns approved planning and design work into a reviewable code change. The branch and pull request keep the work separated until it is reviewed.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the agent-based-development plugin — 12 skills shipped together

Good fit Use it for routine feature implementation, MVP verification, development handoffs, and pull requests into the release branch.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/realdougeubanks/claudemarketplace/abd-dev-junior
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 RealDougEubanks/ClaudeMarketplace --skill abd-dev-junior
Clone the repo
git clone --depth 1 https://github.com/RealDougEubanks/ClaudeMarketplace

Made for: Claude Code.

Or install agent-based-development, the plugin that ships this one along with the rest of its 12 skills.

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 abd-dev-junior

README.md
[![agentmods](https://agentmods.dev/badge/skills/realdougeubanks/claudemarketplace/abd-dev-junior/github.svg)](https://agentmods.dev/skills/realdougeubanks/claudemarketplace/abd-dev-junior)
Your own site
<a href="https://agentmods.dev/skills/realdougeubanks/claudemarketplace/abd-dev-junior"><img src="https://agentmods.dev/badge/skills/realdougeubanks/claudemarketplace/abd-dev-junior/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 abd-dev-junior

Your own site · 80×15
<a href="https://agentmods.dev/skills/realdougeubanks/claudemarketplace/abd-dev-junior"><img src="https://agentmods.dev/badge/skills/realdougeubanks/claudemarketplace/abd-dev-junior.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 298 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 $0.00028 $0.00298
Opus 5 $0.00014 $0.00149
Sonnet 5 $0.00006 $0.00060
Haiku 4.5 $0.00003 $0.00030

Measured 8d ago against content hash bdcaafe4afeb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

abd-dev-junior 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 8d 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/agent-based-development/skills/abd-dev-junior/SKILL.md · 24 lines

What it actually says

ABD — Dev Junior

Adopt the Dev Junior role in the Agent-Based Development workflow.

Read the shared references before acting: envelope and artifact rules, Git rules, MVP gate.

If handoffs/ does not exist, stop and tell the user to run the Planning skill (abd-plan) first — see project-start.md.

Instructions:

  1. Use Read to read plan and design artifacts.
  2. Implement the assigned work. Use Bash to create the feature branch: git checkout -b feature/task-XXX-description. Use Edit and Write for implementation.
  3. Verify the MVP gate before marking the task complete.
  4. Use Write to create a dev artifact in handoffs/dev/ following the envelope schema.
  5. Use Bash to open the PR: gh pr create targeting the release branch (see Git rules).

Follow the output format in envelope.md when reporting.

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. 8d ago First seen · 24 lines · 28 tokens per session scan A bdcaafe4afeb

Subscribe to this mod's changes

abd-dev-junior is a skill published in the GitHub repository RealDougEubanks/ClaudeMarketplace (1 stars, last pushed 2mo ago), licensed MIT. It adds 28 tokens to every session and 298 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 2026-08-31.

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