Borrowing it
Nothing to install: this file belongs to vaquarkhan/Fullstack-development-agent-skills. 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/vaquarkhan/Fullstack-development-agent-skills/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/vaquarkhan/Fullstack-development-agent-skillsWrote 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/instructions/vaquarkhan/fullstack-development-agent-skills/copilot-instructions)<a href="https://agentmods.dev/instructions/vaquarkhan/fullstack-development-agent-skills/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/vaquarkhan/fullstack-development-agent-skills/copilot-instructions/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/instructions/vaquarkhan/fullstack-development-agent-skills/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/vaquarkhan/fullstack-development-agent-skills/copilot-instructions.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 | $0.00399 | $0.00399 |
| Opus 5.5 | $0.00160 | $0.00160 |
| Sonnet 5.5 | $0.00080 | $0.00080 |
| Haiku 4.5 | $0.00040 | $0.00040 |
Grade A, and why
Fullstack-development-agent-skills copilot-instructions.md 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 1mo 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
Fullstack Development Agent Skills — Copilot Instructions
This repository is an open skill registry for production-grade fullstack delivery.
Repository Overview
- 117 skills — 72 core in
skills/+ 45 stack packs inskill-packs/ - 15 presets — stack-specific defaults in
presets/ - 20 starter packs — problem-area bundles in
starter-packs/ - 10 examples — architecture blueprints in
examples/ - 10 lifecycle commands —
/spec,/plan,/build,/validate,/review,/ship,/migrate,/harden,/incident,/optimize
Start Here
- Read
skills/using-fullstack-agent-skills/SKILL.md - Pick a preset from
presets/matching the stack - For deep framework work, load skills from
skill-packs/ - Follow lifecycle commands in
.cursor/commands/or.claude/commands/
Key Directories
| Path | Purpose |
|---|---|
skills/ |
Cross-stack workflow skills |
skill-packs/ |
Java, Python, Go, PHP, Ruby framework playbooks |
presets/ |
Platform defaults |
starter-packs/ |
Use-case bundles |
references/ |
Operational checklists |
registry/assets.json |
Machine-readable index |
docs/fullstack-skills-catalog.md |
Complete inventory |
Skill Writing
Follow docs/skill-anatomy.md. Validate with:
python scripts/validate-skills.py
python scripts/check-skill-boilerplate.py
Routing
- Cross-stack decisions →
skills/ - Spring Boot, FastAPI, Gin, etc. →
skill-packs/ - See
docs/routing-and-lifecycle.md
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.
- 1mo ago First seen · 46 lines · 399 tokens per session scan A 0aad0fe07693
Fullstack-development-agent-skills copilot-instructions.md is an instructions file published in the GitHub repository vaquarkhan/Fullstack-development-agent-skills (3 stars, last pushed 1mo ago), licensed MIT. It adds 399 tokens to every session, about $0.0016 per session on Opus 5.5. 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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