Borrowing it
Nothing to install: this file belongs to houarnu166/skillful-agent-system-builder. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/houarnu166/skillful-agent-system-builder/main/.agents/skills/project-scaffolding/SKILL.mdgit clone --depth 1 https://github.com/houarnu166/skillful-agent-system-builderWrote 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.
[](https://agentmods.dev/skills/houarnu166/skillful-agent-system-builder/project-scaffolding)<a href="https://agentmods.dev/skills/houarnu166/skillful-agent-system-builder/project-scaffolding"><img src="https://agentmods.dev/badge/skills/houarnu166/skillful-agent-system-builder/project-scaffolding/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.
<a href="https://agentmods.dev/skills/houarnu166/skillful-agent-system-builder/project-scaffolding"><img src="https://agentmods.dev/badge/skills/houarnu166/skillful-agent-system-builder/project-scaffolding.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00022 | $0.00476 |
| Opus 5 | $0.00011 | $0.00238 |
| Sonnet 5 | $0.00004 | $0.00095 |
| Haiku 4.5 | $0.00002 | $0.00048 |
Grade A, and why
project-scaffolding 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 9d 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.
What it actually says
Project Scaffolding Skill
This skill guides you through parsing a "Start Prompt" markdown file and creating the corresponding file structure.
1. Directory Structure Standard
You must create the following structure structure in the target directory:
{system-name}/
├── .agents/
│ ├── {agent1-name}.md
│ ├── {agent2-name}.md
│ └── skills/
│ └── {skill-name}/
│ └── SKILL.md
└── AGENTS.md (or specified generic doc)
2. Parsing Strategy
The Start Prompt file usually contains sections for Agents and Skills.
Extracting Agents
Look for sections describing Agents. They typically contain:
- Name
- Description / Role
- Frontmatter (YAML)
- System Prompt / Instructions
Action: Create .agents/{name}.md with the extracted content. Ensure the YAML frontmatter is at the very top.
Extracting Skills
Look for sections describing Skills.
- Name
- Description
- Instructions (Markdown content)
Action:
- Create directory
.agents/skills/{skill-name}/ - Create
SKILL.mdinside it. - Add YAML frontmatter:
--- name: {skill-name} description: {short-description} --- - Add the skill instructions below the frontmatter.
3. Execution Steps
- Initialize:
mkdir -p {target_dir}/.agents/skills - Generate Agents: loop through identified agents and write files.
- Generate Skills: loop through identified skills and write files.
- Finalize: Write a basic
AGENTS.mdreferencing the created agents.
4. Safety Checks
- Sanitize Paths: Ensure filenames do not contain special characters or spaces (use hyphens).
- Overwrite Protection: If the directory is not empty, warn or append a timestamp (though Orchestrator usually handles this).
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.
- 9d ago First seen · 67 lines · 22 tokens per session scan A 1169f286545b
project-scaffolding is a skill published in the GitHub repository houarnu166/skillful-agent-system-builder (23 stars, last pushed 7mo ago), licensed MIT. It adds 22 tokens to every session and 476 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 2026-08-30.
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