Borrowing it
Nothing to install: this file belongs to plipowczan/claude-piv-skeleton. 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/plipowczan/claude-piv-skeleton/main/AGENTS.mdgit clone --depth 1 https://github.com/plipowczan/claude-piv-skeletonWrote 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/plipowczan/claude-piv-skeleton/agents-md)<a href="https://agentmods.dev/instructions/plipowczan/claude-piv-skeleton/agents-md"><img src="https://agentmods.dev/badge/instructions/plipowczan/claude-piv-skeleton/agents-md/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/plipowczan/claude-piv-skeleton/agents-md"><img src="https://agentmods.dev/badge/instructions/plipowczan/claude-piv-skeleton/agents-md.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 | $0.00864 | $0.00864 |
| Opus 5 | $0.00432 | $0.00432 |
| Sonnet 5 | $0.00173 | $0.00173 |
| Haiku 4.5 | $0.00086 | $0.00086 |
Grade A, and why
claude-piv-skeleton AGENTS.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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Universal AI Dev Framework - Agent Instructions
PIV: Prime → Implement → Validate methodology for AI-assisted development
Quick Start
- Prime: Understand codebase before changes
- Implement: Write tests FIRST (TDD mandatory)
- Validate: Run tests, verify quality
TDD Requirements (MANDATORY)
RED → GREEN → REFACTOR - No exceptions.
| Phase | Action | Validation |
|---|---|---|
| 🔴 RED | Write failing test FIRST | Test fails |
| 🟢 GREEN | Minimal code to pass | Test passes |
| 🔵 REFACTOR | Improve while green | Tests still pass |
Rules:
- ❌ NEVER write code before test
- ❌ NEVER skip TDD for "simple" code
- ✅ Test must fail before implementation
- ✅ Minimal code only - no premature optimization
Code Style
General Principles
- Understand first: Read existing code before modifying
- Match patterns: Follow existing codebase conventions
- Minimal changes: Only change what's necessary
- Self-documenting: Clear names over comments
DRY (Don't Repeat Yourself)
- Check for existing implementations before creating new
- Reuse patterns, don't duplicate logic
- Single source of truth for each piece of knowledge
KISS (Keep It Simple)
- Prefer simple over clever solutions
- Don't over-engineer
- Avoid premature optimization
Testing Patterns
Given-When-Then Structure
GIVEN: Setup test data and preconditions
WHEN: Execute the code being tested
THEN: Verify expected outcomes
Test Requirements
- Descriptive test names explaining behavior
- Independent tests (no shared state)
- Fast execution (< 100ms per unit test)
- Mock external dependencies
Coverage Goals
- Critical paths: 90-100%
- Business logic: 80-90%
- Overall: 80%+
Git Workflow
Branch Naming
feature/feature-name- New featuresfix/bug-description- Bug fixesdocs/update-description- Documentation
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.
- 8d ago First seen · 153 lines · 864 tokens per session scan A 6baa218b143c
claude-piv-skeleton AGENTS.md is an instructions file published in the GitHub repository plipowczan/claude-piv-skeleton (4 stars, last pushed 7mo ago), licensed MIT. It adds 864 tokens to every session, about $0.0043 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.
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