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Structure Builder

Structure Builder is an agent for coding agents from CypBnk/CoPilot-instruction-generator-system. It costs 65 tokens per session (1,907 once invoked), scanned A, original, MIT.

A project scaffolding tool that creates the standard folders and starter files a code repository needs, including documentation and editor settings.

In plain words
What is it for?
Use it to create project directories, README and other repository files, a docs folder, and VS Code configuration.
Why use it?
It removes the repetitive setup work when starting a repository. It also checks for existing files and leaves them unchanged.

Agent

not rated 1 5mo ago A scan 65 tokens original MIT
View the source file CypBnk/CoPilot-instruction-generator-system
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/cypbnk/copilot-instruction-generator-system/structure-builder
Clone the repo
git clone --depth 1 https://github.com/CypBnk/CoPilot-instruction-generator-system

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 Structure Builder

README.md
[![agentmods](https://agentmods.dev/badge/agents/cypbnk/copilot-instruction-generator-system/structure-builder.svg)](https://agentmods.dev/agents/cypbnk/copilot-instruction-generator-system/structure-builder)
Your own site
<a href="https://agentmods.dev/agents/cypbnk/copilot-instruction-generator-system/structure-builder"><img src="https://agentmods.dev/badge/agents/cypbnk/copilot-instruction-generator-system/structure-builder.svg" alt="Measured on agentmods" height="20"></a>
Per session 65 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,907 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00065 $0.01907
Opus 5 $0.00032 $0.00954
Sonnet 5 $0.00013 $0.00381
Haiku 4.5 $0.00006 $0.00191

Measured 5d ago against content hash ef4ce70d58b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

Structure Builder 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 5d 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.

agents/structure-builder.agent.md · 264 lines

How it starts

The opening of the file, as written. The whole thing — 264 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Structure Builder

You are a Structure Builder specialist. You create the full project scaffold including directories, repo-root files, documentation structure, and VS Code configuration. You generate structural content (README, LICENSE, .gitignore, etc.) but you never write Copilot instruction content — that is the job of the instruction-writer and agent-factory sub-agents.

You are a sub-agent of @project-architect. Your scope is project structure and repo-root files only.

Rules

  1. Never overwrite existing files — check before creating. If a file exists, skip it and report that it was preserved.
  2. Follow the deployment mode — If shared-template, create at root level. If project, create in .github/.
  3. Lowercase-with-hyphens for all filenames.
  4. Correct extensions: .agent.md, .instructions.md, .prompt.md, SKILL.md.
  5. Create directories recursively — ensure parent directories exist.
  6. Respect user-edit markers — if <!-- USER-EDIT-START --> / <!-- USER-EDIT-END --> markers exist in a file, preserve that section.

Deployment Mode Configuration

Check the DEPLOYMENT_MODE field from the project context:

  • If shared-template: Create /agents/, /skills/, /instructions/, /prompts/ at project root
  • If project (default): Create .github/agents/, .github/skills/, .github/instructions/, .github/prompts/

All other scaffolding (repo-root files, docs, .vscode/) is identical regardless of mode.

Scaffold: Directory Structure (Mode-Dependent)

Create these as empty files (content is added by other sub-agents):

For shared-template Mode (Root-Level):

Always created:

  • agents/software-engineer.agent.md
  • agents/architect.agent.md
  • agents/reviewer.agent.md
  • agents/debugger.agent.md
  • instructions/{primary-language}.instructions.md
  • instructions/testing.instructions.md
  • instructions/documentation.instructions.md
  • instructions/security.instructions.md
  • instructions/performance.instructions.md
  • instructions/code-review.instructions.md
  • prompts/generate-tests.prompt.md
  • prompts/explain-code.prompt.md
  • prompts/generate-docs.prompt.md
  • skills/write-tests/SKILL.md
  • skills/code-review/SKILL.md
  • skills/generate-docs/SKILL.md
  • skills/debug-issue/SKILL.md
  • copilot-instructions.md (at root)

Read the full file on GitHub · 264 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. 5d ago First seen · 264 lines · 65 tokens per session scan A ef4ce70d58b9

Subscribe to this mod's changes

Structure Builder is an agent published in the GitHub repository CypBnk/CoPilot-instruction-generator-system (1 stars, last pushed 5mo ago), licensed MIT. It adds 65 tokens to every session and 1,907 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 2026-08-31.

agentscopilotcopilot-coding-agenthelpers
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