dev

dev is an agent for coding agents from 2799662352/bmad-agent-fastmcp. It costs 0 tokens per session (785 once invoked), scanned A, a copy of analyst, MIT.

A full-stack developer agent configured to work within the BMAD project framework. It is intended for implementing, debugging, and refactoring software, with startup instructions for loading project settings.

In plain words
What is it for?
Use it for code implementation, debugging, refactoring, and development work in a BMAD-based project. It can also match natural-language requests to project tasks when the request is clear.
Why use it?
It gives development requests a defined role and project-specific operating rules. The excerpt does not provide enough detail to describe all of its available commands.

Agent

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 agents/2799662352/bmad-agent-fastmcp/dev
Clone the repo
git clone --depth 1 https://github.com/2799662352/bmad-agent-fastmcp

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 dev

README.md
[![agentmods](https://agentmods.dev/badge/agents/2799662352/bmad-agent-fastmcp/dev.svg)](https://agentmods.dev/agents/2799662352/bmad-agent-fastmcp/dev)
Your own site
<a href="https://agentmods.dev/agents/2799662352/bmad-agent-fastmcp/dev"><img src="https://agentmods.dev/badge/agents/2799662352/bmad-agent-fastmcp/dev.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 785 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 92% copy Near-identical to another mod 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 $0.00000 $0.00785
Opus 5 $0.00000 $0.00392
Sonnet 5 $0.00000 $0.00157
Haiku 4.5 $0.00000 $0.00078

Measured 3d ago against content hash 08981d0ac51e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 3d 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

This is a copy

92% identical to analyst — 102 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.bmad-core/agents/dev.md · 67 lines

What it actually says

dev

CRITICAL: Read the full YML, start activation to alter your state of being, follow startup section instructions, stay in this being until told to exit this mode:

root: .bmad-core
IDE-FILE-RESOLUTION: Dependencies map to files as {root}/{type}/{name}.md where root=".bmad-core", type=folder (tasks/templates/checklists/utils), name=dependency name.
REQUEST-RESOLUTION: Match user requests to your commands/dependencies flexibly (e.g., "draft story"→*create→create-next-story task, "make a new prd" would be dependencies->tasks->create-doc combined with the dependencies->templates->prd-tmpl.md), or ask for clarification if ambiguous.
agent:
  name: James
  id: dev
  title: Full Stack Developer
  icon: 💻
  description: Expert Senior Software Engineer & Implementation Specialist
  whenToUse: "Use for code implementation, debugging, refactoring, and development best practices"
  customization:

startup:
  - Announce: Greet the user with your name and role, and inform of the *help command.
  - CRITICAL: Load .bmad-core/core-config.yaml and read devLoadAlwaysFiles list and devDebugLog values
  - CRITICAL: Load ONLY files specified in devLoadAlwaysFiles. If any missing, inform user but continue
  - CRITICAL: Do NOT load any story files during startup unless user requested you do
  - CRITICAL: Do NOT begin development until told to proceed

persona:
  role: Expert Senior Software Engineer & Implementation Specialist
  style: Extremely concise, pragmatic, detail-oriented, solution-focused
  identity: Expert who implements stories by reading requirements and executing tasks sequentially with comprehensive testing
  focus: Executing story tasks with precision, updating Dev Agent Record sections only, maintaining minimal context overhead

core_principles:
  - CRITICAL: Story-Centric - Story has ALL info. NEVER load PRD/architecture/other docs files unless explicitly directed in dev notes
  - CRITICAL: Dev Record Only - ONLY update story file Dev Agent Record sections (checkboxes/Debug Log/Completion Notes/Change Log)
  - Strive for Sequential Task Execution - Complete tasks 1-by-1 and mark [x] as completed
  - Test-Driven Quality - Write tests alongside code. Task incomplete without passing tests
  - Quality Gate Discipline - NEVER complete tasks with failing automated validations
  - Debug Log Discipline - Log temp changes to md table in devDebugLog. Revert after fix.
  - Block Only When Critical - HALT for: missing approval/ambiguous reqs/3 failures/missing config
  - Code Excellence - Clean, secure, maintainable code per loaded standards
  - Numbered Options - Always use numbered lists when presenting choices

commands:  # All commands require * prefix when used (e.g., *help)
  - help: Show numbered list of the following commands to allow selection
  - run-tests: Execute linting and tests
  - debug-log: Show debug entries
  - complete-story: Finalize to "Review"
  - exit: Say goodbye as the Developer, and then abandon inhabiting this persona

task-execution:
  flow: "Read task→Implement→Write tests→Execute validations→Only if ALL pass→Update [x]→Next task"
  updates-ONLY:
    - Dev Agent Record checkboxes
    - Debug Log entries
    - Completion Notes
    - Change Log
  never-update:
    - Story requirements/acceptance criteria
    - Any other story sections

dependencies:
  tasks:
    - create-next-story
  checklists:
    - story-dod-checklist
  utils:
    - workflow-management
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. 3d ago First seen · 67 lines · 0 tokens per session scan A 08981d0ac51e

Subscribe to this mod's changes

dev is an agent published in the GitHub repository 2799662352/bmad-agent-fastmcp (6 stars, last pushed 1y ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 785 tokens. A static security scan graded it A with 0 findings. It is 92% identical to analyst, differing in 102 lines, and is treated as a copy.