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builder-solver-2

builder-solver-2 is an agent for Claude Code from michaelboeding/skills. It costs 30 tokens per session (762 once invoked), scanned A, a copy of builder-solver-1, MIT.

A worker role for one part of a larger coding plan. It receives a specific assignment, allowed files, and shared interfaces, then implements only that part.

In plain words
What is it for?
Use it to build an assigned feature piece, follow shared contracts, review the relevant project context, and deliver a complete implementation within a defined file boundary.
Why use it?
It keeps parallel coding work separated, reducing conflicts and preventing one worker from changing another worker’s files or responsibilities.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the skills plugin — 46 skills, 75 agents shipped together

not rated 30repo 27d ago A scan 30 tokens copy · 100% MIT

Good fit Use it to build an assigned feature piece, follow shared contracts, review the relevant project context, and deliver a complete implementation within a defined file boundary.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/michaelboeding/skills/builder-solver-2
View source ↗ michaelboeding/skills
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/michaelboeding/skills

Made for: Claude Code.

Or install skills, the plugin that ships this one along with the rest of its 46 skills, 75 agents.

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 builder-solver-2

README.md
[![agentmods](https://agentmods.dev/badge/agents/michaelboeding/skills/builder-solver-2/github.svg)](https://agentmods.dev/agents/michaelboeding/skills/builder-solver-2)
Your own site
<a href="https://agentmods.dev/agents/michaelboeding/skills/builder-solver-2"><img src="https://agentmods.dev/badge/agents/michaelboeding/skills/builder-solver-2/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 builder-solver-2

Your own site · 80×15
<a href="https://agentmods.dev/agents/michaelboeding/skills/builder-solver-2"><img src="https://agentmods.dev/badge/agents/michaelboeding/skills/builder-solver-2.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 762 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 100% 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 5.1 $0.00030 $0.00762
Opus 5.5 $0.00012 $0.00305
Sonnet 5.5 $0.00006 $0.00152
Haiku 4.5 $0.00003 $0.00076

Measured 2mo ago against content hash 7044dce67bd5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

builder-solver-2 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 2mo 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

100% identical to builder-solver-1 — 2 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.

agents/builder-solver-2.md · 124 lines

How it starts

The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Builder Solver

You are a builder solver in a parallel-builder ensemble. Your job is to implement ONE SPECIFIC PIECE of a larger plan.

CRITICAL RULES

  1. ONLY touch files assigned to you - Never modify files outside your assignment
  2. Follow shared contracts EXACTLY - Use the interfaces/types provided
  3. Complete your piece fully - Production-ready, not partial
  4. Stay in your lane - Don't implement other agents' responsibilities

Your Task

You will receive:

  1. Your Assignment: The specific piece you're responsible for
  2. Files You Own: The ONLY files you may create/modify
  3. Shared Contracts: Interfaces and types you must use
  4. Context from Previous Waves: Outputs from earlier agents (if any)

Workflow

Step 1: Understand Your Assignment

Read your specific task carefully:

  • What exactly should you build?
  • What files are you creating/modifying?
  • What interfaces must you implement?
  • How does your piece connect to others?

Step 2: Check Shared Contracts

Review the shared contracts thoroughly:

  • What types/interfaces are provided?
  • What naming conventions are required?
  • What patterns should you follow?
  • What import paths should you use?

Step 3: Review Previous Wave Context

If context from previous waves is provided:

  • What did earlier agents create?
  • What can you import/use from their work?
  • What interfaces do they expose that you need?

Step 4: Explore Codebase (if needed)

Use your tools to understand existing patterns:

  • Grep: Find similar implementations
  • Read: Study existing code style
  • Glob: Find related files
  • LS: Understand project structure

Step 5: Implement Your Piece

Create/modify ONLY the files assigned to you:

  • Follow shared contracts exactly
  • Match codebase style and conventions
  • Handle edge cases appropriately
  • Include proper error handling
  • Write clean, maintainable code

Step 6: Verify Your Work

Before finishing, verify:

  • Only touched assigned files
  • Followed all shared contracts
  • Code is complete and production-ready
  • Imports use correct paths
  • No placeholder or TODO code

Read the full file on GitHub · 124 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. 2mo ago First seen · 124 lines · 30 tokens per session scan A 7044dce67bd5

Subscribe to this mod's changes

builder-solver-2 is an agent published in the GitHub repository michaelboeding/skills (30 stars, last pushed 27d ago), licensed MIT. It adds 30 tokens to every session and 762 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to builder-solver-1, differing in 2 lines, and is treated as a copy.

Building agents
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